Work book

The standard IEC 61439 in practice

 Work book on the seminar delivered by ABB
The standard IEC 61439

Basic standards
(definitions of personal protection, calculation and test procedures, assessment bases)
IEC 60364-4-41 IEC / TR 60664-2-1 IEC 60529
Protection against electric shock Insulation co-ordination Test devices and test procedures

Requirements for special Installation and connection of

installations or locations switchgear and distribution boards
IEC 60364-7... IEC 60364-7-729

Operation of electrical installations Low-voltage switchgear and

EN 50110 controlgear ASSEMBLIES
- Protection against electric shock
- Protection against unintentional
direct contact with
hazardous live parts
Safety of machinery,
electrical equipment of machines EN 50274
and mechanisms.
Part 1. General requirements
IEC 60204-1

Installation and implementation provisions

IEC 61439-1, IEC 61439-2
IEC 61439-3

Prepared by:
Matthias Kratzke
Jürgen Dufner

Work book | 2CPC 000 305 B0101 1

Notes

2 2CPC 000 313 B0101 | Work book

Work book
Contents

Blue Pages 5 – 10 Chapter 3 – Building / manufacture of the distribution board

Foreword / introduction 5 Building / manufacture of the distribution board 117 1
Parts of the standard 6
Why a new standard? 7 Chapter 4 – Routine verification
How can the original manufacturer or the manufacturer verify the Routine verification 119 2
safety of an ASSEMBLY? 8
How can a low-voltage switchgear and controlgear Chapter 5 – CE conformity declaration
ASSEMBLY be realized safely? 9 CE conformity declaration 121 3

White Pages 11 - 122 Yellow Pages 123 – 165

4
Chapter 1 – Collecting the requisite data Symbols and abbreviations 123
Connection to the electrical system 11 Comparisons and effects in connection with different standards 123
Electrical systems and protective systems 13 Minimum requirements for the type plate – example ABB 125 5
Protection against electric shock (IEC 60364-4-41) 15 Panel Design Configurator software – new article 127
Overvoltage categories 17 Panel Design Configurator software – export/import user article data 129
Characteristics and explanations 19 Temperature rise verification up to 630 A – solution example 131
Check list 25 Data collection tables 133
Electrical circuits and loads 27 Verification of temperature rise up to 630 A 139
Characteristics and explanations 29 Design verification part I 141
Main circuits 31 Design verification part II 143
Check list 35 Unit test protocol 145
Installation and environmental conditions 37 Unit test protocol checklist 147
Typical conditions of installations of ASSEMBLIES 39 Conformity assessment checklist 161
Protection against mechanical impacts 41 Declaration of conformity 163
Check list 45 Examples STRIEBEL & JOHN 165
Operating and servicing 49
Our solutions for internal forms of separation 50
Internal forms of separation 51
Characteristics and explanations 53
Check list 55

Chapter 2 – Distribution board design and design verification

Distribution board design and design verification 57
Requirements arising from the standard 59
Characteristics and explanations 61
Verification of temperature rises 67
Example calculation 74
Temperature rise verification up to 630 A 75
Temperature rise verification pursuant to DIN EN 60890 81
Verification of the short-circuit withstand strength 87
Short circuit – key terms 89
Verification of the Short-circuit withstand strength 91
Short-circuit current at the supply position 95
Transformer nominal values table 109
Characteristics and explanations 111
Devices from other manufacturers 113
Form sheet examples 115

Work book | 2CPC 000 305 B0101 3

Notes

4 2CPC 000 313 B0101 | Work book

Foreword / introduction

This document is designed to assist you and enables us to secure our

1
common success.

This workbook contains general information and proposals for de-

signing, planning and building low voltage switchgear and controlgear
ASSEMBLIES in compliance with the applicable laws, directives and
provisions.

Basic knowledge in electrical engineering is essential for planning low

voltage switchgear and controlgear ASSEMBLIES.

This workbook includes general and special information which is

essential for safe, reliable and economical low voltage switchgear and
controlgear ASSEMBLY operation.

In addition, the topics designed to protect people and assets are

being dealt with.

Distribution boards in the low voltage network

Distribution boards serve as link between electrical appliances and

users.
They form the visible part of an electrical system and represent the
electrical company having installed the ASSEMBLY.

The requirements in terms of flexibility and safety for distribution

boards are particularly high:

– Personal protection
– Property protection
– High operational and functional safety
– Ease of use

Solid design to prevent unprofitable investment:

– Optimum adaptability to use cases

– Cooperation between user / planner / manufacturer
to balance specifications and costs

Work book | 2CPC 000 313 B0101 5

Parts of the standard

Standard Title Edition

IEC 61439-0 Guideline April 2013
IEC 61439-1 General rules 08/14/2011
IEC 61439-2 Power switchgear and controlgear ASSEMBLIES 08/19/2011
IEC 61439-3 Distribution boards intended to be operated by ordinary persons 02/16/2012
IEC 61439-4 ASSEMBLIES for construction sites 11/15/2012
IEC 61439-5 Assemblies for power distribution in public networks 08/25/2014
IEC 61439-6 Busbar trunking systems 05/23/2012
Prestandard Assemblies for specific applications such as marinas, camping 02/19/2014
IEC/TS 61439-7 sites, market squares, electric vehicle charging stations and similar

6 2CPC 000 305 L0101 | Work book

Why a new standard?
Who is the manufacturer?

Health of the individual is regarded as fundamental duced a defective product to the market and that
1
asset within the economic space of the European there is causality between the defective product,
Union. the violation of legal rights and the damage. The
question whether a manufacturer is responsible for
The EU-Commission has therefore made it its goal product defects puts an unacceptable burden of
to elaborate directives, which are then transposed proof on the injured party.
into national law by Member States.
This is the reason why a reversed burden of proof
Thus, the low voltage directive is implemented in is applied here. Meaning that the manufacturer has
the German Product Safety Act. to prove that the product was free from defects
in design, workmanship and instructions upon
Next to the German Product Safety Act, there is marketing.
the Product Liability Act which is designed to pro-
tect the user in case of damages.

Both laws pursue safety targets and are designed

to protect people, livestock and property.
Regarding product liability for example, injured
parties will only have to demonstrate that their le-
gal rights have been violated and that this violation
led to a loss and that the manufacturer has intro-

The new standard precisely defines the responsibilities for a marketed

product. It differentiates between original manufacturer and ASSEM-
BLY manufacturer.

Builders

Builders

System manufacturer
Builders

Original manufacturer ASSEMBLY

Manufacturer

Work book | 2CPC 000 305 L0101 7

How can the original manufacturer or the manufacturer verify the
safety of an ASSEMBLY?

The new standard describes three design verification processes for ASSEMBLIES and requires a
routine verification for every marketed product.

Testing Calculation / measurement Application of constructive rules

such as such as such as

– electrical – Calculating of temperature – specified dimensions
– mechanical rises or of short-circuit forces – test steps
– thermal tests in accordance – Measurement of clearances – ASSEMBLY sequences
with the requirements speci- and creepage distances based on tested reference
fied in the standard designs

These processes are essentially implemented manufacturer will become original manufactur-
by the original manufacturer. In case that the er for that alteration and will have to carry out
ASSEMBLY manufacturer does not install an the design verification in accordance with the
ASSEMBLY in compliance with the instructions described procedures.
of the original manufacturer, the ASSEMBLY

IEC 61439
ASSEMBLY
Low-voltage ASSEMBLY

Design verification through the original manufacturer

Original manufacturer

Application of constructive
Testing Calculation / measurement
rules
Original manufacturer

Power switchgear and controlgear ASSEMBLIES

The ASSEMBLY manufacturer may:

ASSEMBLY manufacturer

– Proceed to final ASSEMBLY as provided for by the original manufacturer

– Deviate from the provisions of the original manufacturer and will thus become original
manufacturer for this alteration.

Routine verification

Operational switchgear ASSEMBLIES

The ASSEMBLY manufacturer always has to implement the routine verification.

8 2CPC 000 313 B0101 | Work book

How can a low-voltage switchgear and controlgear ASSEMBLY be
realized safely?

The new standard does not only precisely define the responsibilities of
1
the market participants, but also specifies the dimensions of low-voltage
switchgear and controlgear ASSEMBLIES.

In addition it presents the possibilities and limits for the market participants in
order to guarantee to the user safe low-voltage switchgear and controlgear
ASSEMBLIES.

It is also designed to specify the documentation required for low-voltage

switchgear and controlgear ASSEMBLIES and/or
the required verifications.

Which are the dimensioning specifications enabling design verification?

One important aspect emphasised in the IEC 61439 is the earthing system as
this has important consequences for planing the electrical circuits.

Work book | 2CPC 000 313 B0101 9

Notes

10 2CPC 000 313 B0101 | Work book

Chapter 1 – collecting the requisite data
Connection to the electrical system

How are ASSEMBLIES dimensioned?

1
ASSEMBLIES are dimensioned through the definition of interface
values.

Installation and
3 environmental conditions

Operating and
4 servicing

Connection to the Circuits and

1 electrical system 2 loads

1) Connection to the electrical system 2) Electrical cicuits and loads

– Nominal voltage of the incoming supply – Distribution circuits for load-side
– Electrical system subdistribution panels
– Rated current – Final circuits
– Short-circuit withstand strength
– Overvoltage
– Connecting cable

3) Installation and environmental conditions 4) Operating and servicing

– Indoor installations Operation through:
– Outdoor installations – Device activation
– Dimensions for transport and installation – Access control

Work book | 2CPC 000 313 B0101 11

Notes

L1 L1
L2 L2
L3 L3
PEN N
PE

L1
L2
L3
N
PE

L1 L1
L2 L2
L3 L3
N PE

12 2CPC 000 305 L0101 | Work book

Connection to the electrical system
Electrical systems and protective systems

Evaluation of the types of earthing for systems, and protective

1
measures in low voltage switchgear ASSEMBLIES

TN system

Benefits: Fast shut-up in case of faults and/or Short-circuits, lowest risk to people
and property

Disadvantages: High line and cabling overheads due to installed protective conductor,
every fault leads to system downtimes
Preferred application: Power plants, public power supply and grids
TT system

Benefits: Minor overheads for installed lines and cabling,

different touch voltages acceptable for some areas, combination options
with TN system
Disadvantages: Complex system earthing (≤ 2 Ω), compulsory equipotential bonding for
every building
Preferred application: Agricultural for livestock farming
IT system

Benefits: Minor overheads for installed lines and cabling,

high availability of supply:
1. Fault is only signalled
2. Fault is disconnected
Disadvantages: Required continuous equipment insulation to the voltage between the
phase conductors Equipotential bonding necessary
Preferred application: Hospitals, industry
Double insulation

Benefits: Highest safety level, combination with other systems possible

Disadvantages: Double insulation of the equipment is only economic for small-scale
consumers. For thermal equipment there is a fire risk due to the
insulation material
Preferred application: Domestic, electrical distribution boards and small-scale equipment
Protection by extra low voltage

Benefits: No risks in case of contact

Disadvantages: Limited economic equipment performance, special power
circuit requirements
Preferred application: Small appliances

Work book | 2CPC 000 313 B0101 13

Notes

14 2CPC 000 313 B0101 | Work book

Connection to the electrical system
Protection against electric shock (IEC 60364-4-41)

Protection measures must include

1
– a suitable combination of two independent protections, i.e. one basic protection and one fault
protection, or
– one reinforced protection causing the basic protection (protection against direct contact)
and the fault protection (protection against indirect contact).

Generally, the following protective measures are allowed:

– Protection by automatically disconnecting the power supply (section 4-41);
– Protection by double or reinforced insulation (section 4-42);
– Protection by protective separation of a consumer device (section 4-43);
– Protection by low voltage by SELV or PELV (section 4-44);

4-41 Protective measure: Automatic disconnection of the power supply

Automatic disconnection of the power supply is a protective measure designed to:

– ensure basic protection (protection against direct contact) by basic insulation of the live parts or by
covering or sheathing in line with ANNEX A and
– and fault protection (protection against indirect contact) by protective equipotential bonding by the
main earthing bar and automatic disconnection in case of faults, […]

4-42 Protective measure: Double or reinforced insulation

Double or reinforced insulation is a protective measure designed to:

– ensure basic protection (protection against direct contact) by basic insulation and fault protection
(protection against indirect contact) by an additional insulation
or
– ensure basic protection and fault protection by a reinforced insulation between live parts and
accessible parts.

Protection classes
Protection class I
The protection target of protection class I is achieved by insulation of the live parts and
connection of the accessible metal parts to the protective conductor.
The protective conductor terminal is identified by ..

P rotection class II
The protection target of protection class II is achieved by double insulation.
Protection class II is identified by ,.

Work book | 2CPC 000 313 B0101 15

Notes

16 2CPC 000 313 B0101 | Work book

Connection to the electrical system
Overvoltage categories

Overvoltage protection in buildings

1
Overvoltages can result from switching operations in the energy supply system
or in own electrical systems. Overvoltages are then transferred via the system
(supply lines and own electrical installations) and may then reach sensitive end
devices, which might then be damaged or destroyed.

There are two types of overvoltage:

– Overvoltage generated by switching operations ("switching overvoltage") or by
atmospheric influences
– Overvoltage generated by direct lightning strikes or lightning strikes in direct
vicinity of a physical structure

The following types of surge arresters exist for buildings:

1. External lightning protection

2. Surge arresters in the precounter sector (Type 1)

3. Surge arresters in the distribution boards (Type 2)

4. Surge arresters for end devices

5. Surge arresters for PV systems

6. Surge arresters in data engineering and communication

Overvoltage categories
Category to describe overvoltages that might be generated by lightning or
switching operations at the place of installation.

The following categories are used to describe overvoltages:

I Equipment with reduced lightning impulse withstand voltage for a

connection to power circuits equipped with surge arrester systems
(e.g. electronic appliances)
II Consumers connected to fixed installations (e.g. electronic tools)
III Equipment with special availability requirements and protected by
lightning arresters
IV Use of equipment directly at the installation connection point.
Direct lightning strikes are possible (e.g. meter panels)

Work book | 2CPC 000 313 B0101 17

Notes

18 2CPC 000 313 B0101 | Work book

Connection to the electrical system
Characteristics and explanations

Nominal values
1
… are defined in DIN 40200 and specify a suitable, rounded parameter value used to
describe or to identify an element, a group or installation. (Example: a general information
describing a motor: Nominal current 25 A/nominal voltage 400 V)

Rated values
… are defined as applicable parameter value at specific operating conditions which are
defined by the manufacturer of a given component, group or installation.
(Example: Rated current of 630 A of a fuse switch disconnector for fuse links according
to DIN 43620 size 3 at a rated operational voltage of 690 V and a rated insulation voltage
of 690 V.)

Connection of the incoming cables

… From below
… From above

… Copper or aluminium conductor

… Connection using terminal blocks

… Single-core cable
… Multi-core cable / number /section in mm²

… Connection to equipment / connection using terminal blocks

Work book | 2CPC 000 313 B0101 19

Notes

Insert the applicable voltage values into the installation scheme.

20 2CPC 000 305 L0101 | Work book

Connection to the electrical system
Characteristics and explanations

Rated voltage Un
1
... is the highest stated nominal voltage of a system (AC voltage (effective) or DC voltage) to which the
main circuits are designed.
For multi-phase systems this is the voltage between the phase conductors.

Rated operational voltage Ue

... is the stated voltage value defining the use together with the rated current. In main circuits the
rated operational current refers to the design of the main contact and to the arc quenching behaviour
of the switching device. In terms of their main current switching devices are only tested up to 105 %
of the rated operational voltage. The operating voltage of a low voltage switchgear and controlgear
ASSEMBLY must not exceed this value.
For multi-phase systems this is the voltage between the phase conductors.

Rated impulse voltage Uimp of the ASSEMBLY

The rated impulse withstand voltage must be equal or greater than the specified transient overvoltage
values generated in the electrical system to which the circuit is to be connected.

Rated frequency ƒn :
... is the frequency value stated by the ASSEMBLY manufacturer to which the ASSEMBLY is assigned
and to which the operating conditions refer. NOTE: A number or a range of rated frequencies can be
assigned to a circuit and be rated for AC or DC power.

The limits are between 98 % and 102 % of the rated frequency.
In practice, the usual rated frequency is 50 Hz.

Under 0 Hz (DC current), special switching devices with specific arc quenching systems are needed.
Busbars can support higher loads.

Under 16 2/3 Hz the switching devices for 50 Hz have reduced switching capacities.

A switching device's switching capacity is reduced at 400 Hz due to the shorter arc quenching time.
Busbars can only support reduced loads due to the skin effect.

The rated current for busbars under a rated frequency above 50 Hz is calculated by the following
formula:

In= rated current; Inf= rated current under a defined frequency; fn= rated frequency; fN= nominal
frequency of the system to which the low voltage switchgear and controlgear ASSEMBLY is to be
connected

Work book | 2CPC 000 305 L0101 21

Notes

Insert the applicable current values into the installation scheme.

22 2CPC 000 305 L0101 | Work book

Connection to the electrical system
Characteristics and explanations

Rated current of the switchgear ASSEMBLY InA

1
... is the current value stated by the manufacturer which can be supported without exceeding the
defined temperature rise limits.

Uninfluenced short-circuit current Icp

... is the effective value of that current which would flow if the incoming line of a circuit would be
short-circuited by a conductor in direct vicinity of the connections of the switchgear ASSEMBLY (for
the strength and duration of the short-circuit current, see 10.11.5.4)

Rated peak withstand current Ipk

... is the highest short-circuit current peak value stated by the ASSEMBLY manufacturer that can be
withstood under specified conditions.

Rated short-time withstand current Icw

... is the effective value of the short-time current stated by the ASSEMBLY manufacturer , that can be
withstood under specified conditions without damage.
(for example this is stated as follows: Icw=40 kA/1s; since the thermal effect is square dependent on the current (I²t), an effective AC current value
of 80 kA would be acceptable for a duration of 0.25 s

in the 3 s range the rated peak withstand current can be calculated using the same formula I²t, provided that the peak value does not exceed the
rated peak withstand current).

Conditional rated short-time withstand current Icc

... Is the value of the uninfluenced short-circuit current specified by the ASSEMBLY manufacturer
which the circuit protected by a short-circuit protection device (SCPD) can withstand during the total
turn-off time of the device (current flow duration) under specified conditions.
The SCPD may be an integral part of the switchgear ASSEMBLY or a separate unit.

Rated short-circuit current with fuse protections Icf

When fuse protections are used, the rated short-circuit current is the uninfluenced short-circuit cur-
rent. The turn-off times result then from the fuse characteristics.
The rated short-circuit current of the fuse is here equal or greater than the uninfluenced short-circuit
current.

Work book | 2CPC 000 305 L0101 23

Notes

24 2CPC 000 313 B0101 | Work book

Connection to the electrical system
Check list

1 Connection to the electrical system

1
Characteristics Information provided by the planner / cus- Information provided by the manufacturer
tomer
Nominal voltage of the incoming supply
AC _______ V _____ Hz Ue = ____________ V
DC _______ V fn = ____________ Hz
System __________ TN-C __________ Protection by
__________ TN-C-S automatic disconnection of the
__________ TN-S power supply (PC I)
__________ TT
__________ IT __________ protection by protective insulation
(PC II)
Rated current Supply current (nominal current transformer /
InA = ___________ A
upstream protective device)
Short-circuit withstand strength
Icp = _______ kA Ipk = ___________ kA
(please see notes on pages 73 - 77)
(uninfluenced short-circuit current at the supply Icw = ___________ kA
terminals) Icc = ___________ kA
Overvoltage Overvoltage category Rated impulse withstand voltage
__________ III Uimp = ___________ kV
__________ IV
Incoming line connection
__________ from below __________ single-core cable
__________ from above __________ multi-core cable
__________ copper conductor __________ number
__________ aluminium conductor __________ mm² section
__________ Connection using terminal blocks __________ copper conductor
__________ aluminium conductor
__________ connection to equipment
__________ connection using terminal blocks

Work book | 2CPC 000 313 B0101 25

Notes

26 2CPC 000 313 B0101 | Work book

Chapter 1 – collecting the requisite data
Electrical circuits and loads

How are ASSEMBLIES dimensioned?

1
ASSEMBLIES are dimensioned using the interface definition values.

Installation and
3 environmental conditions

Operating and
4 servicing

Connection to the Circuits and

1 electrical system 2 loads

1) Connection to the electrical system 2) Electrical cicuits and loads

– Nominal voltage of the incoming supply – Distribution circuits for load-side
– Electrical system subdistribution panels
– Rated current – Final circuits
– Short-circuit withstand strength
– Overvoltage
– Connecting cable

3) Installation and environmental conditions 4) Operating and servicing

– Indoor installations Operation through:
– Outdoor installations – Device activation
– Dimensions for transport and installation – Access control

Work book | 2CPC 000 313 B0101 27

Notes

28 2CPC 000 313 B0101 | Work book

Electrical circuits and loads
Characteristics and explanations

Rated Diversity Factor (RDF)

1
.... is the per unit value of the rated current, assigned by the ASSEMBLY
manufacturer, as a percent value of the rated current, to which outgoing
circuits of an ASSEMBLY can be continuously and simultaneously loaded
taking into account the mutual thermal influences.

Rated current of the circuit Inc

... is the current value stated by the manufacturer which can be support-
ed without exceeding the defined temperature rise limits.

Work book | 2CPC 000 313 B0101 29

Notes

30 2CPC 000 313 B0101 | Work book

Electrical circuits and loads
Main circuits

DIN EN 61439 Notes in the section

1
8.6 Electrical circuits and connections within ASSEMBLIES
8.6.1 Main circuits
The busbars (bare or insulated) are to be arranged in such a manner that no internal short-circuit is to
be expected. They are to be dimensioned at least in accordance with the information on the short-cir-
cuit withstand strength (see 9.3)1) and to be designed to withstand at least the short-circuit loads
which might occur on the supply side of the busbars due to the limitation caused by the short-circuit
protective device(s)2) (SCPD)3).

1)
 ated peak withstand current IpK /
R
Rated short-time withstand current Icw of the busbar system or
2)
rated short-circuit current stated by the manufacturer Icp
in case of the use of a protection by SCPD required by the manufacturer
3)
SCPD = short-circuit protective device

Work book | 2CPC 000 313 B0101 31

Notes

32 2CPC 000 313 B0101 | Work book

Electrical circuits and loads
Main circuits

DIN EN 61439 Notes in the section

1
8.6 Electrical circuits and connections within ASSEMBLIES
8.6.4 Selection and installation of non-protected live conductors to reduce the
possibility of short-circuits

The conductors in a panel (including the distribution busbar systems) between the main busbars
and the supply side of functional units including the components of these units must be rated
for the same reduced short-circuit load1) occurring at the outlet side2) of the short-circuit protec-
tive device of this unit, provided that these connections are arranged in such a manner that no
short-circuit between phases or between phase and earth is to be expected (see 8.6.4). […]

Bar connection

Live conductors in an ASSEMBLY which are not protected by a short-circuit protective device
(see 8.6.1 and 8.6.2) are to be selected and installed throughout the entire ASSEMBLY in such a
manner that no short-circuit between phases or between phase and earth is to be expected.
Conductor type examples and requirements are specified in Table 4. Non-protected live con-
ductors selected and installed in compliance with Table 4 must not exceed a total length of 3 m
between the main busbar and each associated SCPD.

max. 3 m

F = Functional unit

Work book | 2CPC 000 313 B0101 33

Notes

34 2CPC 000 313 B0101 | Work book

Electrical circuits and loads
Check list

2 Circuits and consumers

1

Consumer / circuit Information provided by the planner / customer Data to be derived from step 2 by
types manufacturer
Number of circuits Type of protective device Distribution board Circuit ratings Type of protective
ratings
device
Rated Diversity Factor
(RDF) = ________ %
Distribution circuits
___ fuse
for downstream
subdistribution boards ___ MCB
___ MCCB

Final circuits
Number of circuits Type of the protective Consumer ratings Circuit ratings Type of protective
conductor connection device
Socket
____ fuse _______ A Inc = _____ A
____ MCB
____ Circuit breaker and
residual current device
Ohmic load, heater
____ fuse _______ kW Inc = _____ A
____ MCB
____ MCCB

Inductive consumer,
___ fuse _______ kW Inc = _____ A
motor, direct
____ MCB _______ cos 
___ MCCB
Inductive consumer,
____ fuse _______ kW Inc = _____ A
motor, controlled
____ MCB _______ cos 
____ manufacturer's
description

Work book | 2CPC 000 313 B0101 35

Notes

36 2CPC 000 313 B0101 | Work book

Chapter 1 – collecting the requisite data
Installation and environmental conditions

How are ASSEMBLIES dimensioned?

1
ASSEMBLIES are dimensioned using the interface definition values.

Installation and
3 environmental conditions

Operating and
4 servicing

Connection to the Circuits and

1 electrical system 2 loads

1) Connection to the electrical system 2) Electrical cicuits and loads

– Nominal voltage of the incoming supply – Distribution circuits for load-side
– Electrical system subdistribution panels
– Rated current – Final circuits
– Short-circuit withstand strength
– Overvoltage
– Connecting cable

3) Installation and environmental conditions 4) Operating and servicing

– Indoor installations Operation through:
– Outdoor installations – Device activation
– Dimensions for transport and installation – Access control

Work book | 2CPC 000 313 B0101 37

Notes

38 2CPC 000 313 B0101 | Work book

Installation and environmental conditions
Typical conditions of installations of ASSEMBLIES

Mechanical conditions 1
Electrical conditions
Thermal conditions
Climatic conditions

Installation conditions for switchgear ASSEMBLIES

Indoor installation of switchgear ASSEMBLIES
… Is not subject to influences
… Room temperatures between -5°C and +40°C
(average over 24h +35°C)
… Relative humidity 50% at +40°C or 90% at 20°C
(i.e. slow temperature variations inside lead to occasional condensation only)
… The assumed use case is a degree of pollution of "3" for an industrial use
… The place of installation is ≤ 2,000 m above seal level

ASSEMBLY for outdoor installation

… Is exposed to direct sunlight and precipitations
… Ambient air temperatures between -25°C and +40°C
… Relative humidity at +25°C plus 100%
(i.e. frequent dew condensation inside possible)
… Usual powder and liquid paints which are perfectly suitable for indoor
installations, fail completely outside
… The place of installation is not above 2,000 m above sea level

Stationary ASSEMBLIES
… Are ASSEMBLIES which are permanently installed to their position, e.g. on
the floor or a wall, and which permanently fixed and operated.

Movable ASSEMBLIES
… Are ASSEMBLIES which can easily be moved from one place of installation
to another.

Work book | 2CPC 000 313 B0101 39

Notes

40 2CPC 000 313 B0101 | Work book

Installation and environmental conditions
Protection against mechanical impacts

IP code
1
The IP code identifies the degree of protection of enclosures and covers:
- ingress of solid foreign bodies
- against contact with hazardous parts
- ingress of water

The IP code is defined in accordance with IEC 60529.

The degree of protection is identified by the short sign IP and two numerals identifying the degree of
protection and by two additional letters.

Element Numeral or letter Effect on the protection of the equipment Effect on the protection of people
First digit Against ingress of solid foreign bodies Against contact with hazardous parts
0 (no protection) (no protection)
1 ≥ 50 mm diameter Back of the hand
2 ≥ 12.5 mm diameter Finger
3 ≥ 2.5 mm diameter Tool
4 ≥ 1 mm diameter Wire
5 dust-protected Wire
6 dusttight Wire
Second digit Against harmful effects due to the ingress of
water
0 (no protection)
1 Vertical dripping
2 Drops (15° tilt)
3 Spray water
4 Splashing of water
5 Water jets
6 Powerful water jets
7 Temporary immersion
8 Permanent immersion (1)
Additional letter Against contact with hazardous parts
(option)
A Back of hand
B Finger
C Tool
D Wire
Complementary letter Complementary information about
(option)
H High voltage device
M Tested for hazardous effects caused by the
ingress of water when the movable device
components are being operated
S Tested for hazardous effects caused by the
ingress of water when the movable device
components stand still
W Suited for a use under defined weather condi-
tions and equipped with additional protective
measures or processes
(1)
as agreed between user and manufacturer

If one or two of the numeral(s) is/are not used, they are replaced by "X" and/or two "XX".
If none of the letters is used, this is not shown.

Work book | 2CPC 000 313 B0101 41

Notes

42 2CPC 000 313 B0101 | Work book

Installation and environmental conditions
Protection against mechanical impacts

1
IK code
The IK code identifies the degree of protection of electric device enclosures against external mechanical
impact. The IK code is defined in accordance with IEC 62262.
The degree of protection is identified by the short sign IK and two numerals identifying the degree of
protection and by two additional letters. The impact energy is stated in joules.

IK code IK00 IK01 IK02 IK03 IK04 IK05 IK06 IK07 IK08 IK09 IK10
Weight 200 g 200 g 200 g 200 g 200 g 500 g 500 g 1.7 kg 5 kg 5 kg

Height of fall 7.5 cm 10 cm 17.5 cm 25 cm 35 cm 20 cm 40 cm 29.5 cm 20 cm 40 cm

Joule - 0.14 0.2 0.35 0.5 0.7 1 2 5 10 20

Work book | 2CPC 000 313 B0101 43

Notes

44 2CPC 000 313 B0101 | Work book

Installation and environmental conditions
Check list

3 Installation and ambient conditions of ASSEMBLIES

1

Conditions of use Information provided by the Measures/recommendations of the ASSEMBLY manufacturer Selection
planner / customer
Definition pursuant to standard This information is to be taken into account in the
IEC 61439-1 planning of ASSEMBLIES
Indoor installation Atmospheric conditions Comply with more severe requirements arising
Foreign bodies / dust not less than IP2X from the product standard

Foreign bodies Diameter ≥ 12.5 mm IP2X

Foreign bodies Diameter ≥ 2.5 mm IP3X

Dust
Increased presence of dust dust-protected IP5X
Dust
conductible dusttight IP6X
Humidity / water

Dripping water IPX1

Occasional cleaning around the IPX4

distribution board, impact by
diverted water

Functional cleaning around the IPX5

distribution board, impact by
diverted water

Temporary immersion IPX7

Room air conditioned / tempera- -5 to +35 °C Indicate the power loss of the ASSEMBLY for the
ture range dimensioning of the air-conditioning
Room ventilated / temperature -5 to +35 °C Indicate the power loss of the ASSEMBLY for
range, relative humidity 90 % at 20 °C, ventilation dimensioning; and state the room size.
Higher ambient air temperatures are to be taken
up to 50 % at 40 °C into account in the planning of ASSEMBLIES

Outdoor installation Protected installation / -25 to +35 °C Possible measures against moderate condensation
temperature range, relative 90 % at 20 °C, up to 50 % at 40 °C, due to temperature variations: Ventilating, heating,
humidity (against rain, sunshine short term up to 100 % at 25 °C air conditioning
and wind)

Foreign bodies / dust not less than IP2X For increased dust production use a higher degree
of protection such as IP5X

Humidity / water not less than IPX1 The manufacturer states the suitability of the
protected installation, if necessary by applying
additional measures

Unprotected installation / -25 to +35 °C Higher ambient air temperatures which might result
temperature range rel. humidity 90 % at 20 °C, up to 50 % at 40 °C, from direct sunlight are to be taken into account
short term up to 100 % at 25 °C in the planning of ASSEMBLIES Possible measures
against moderate condensation due to temperature
variations: Ventilating, heating, air conditioning

Direct sunlight UV resistance Follow manufacturer's instructions

Foreign bodies / dust not less than IP2X For increased dust production use a higher degree
of protection such as IP5X

Humidity / water not less than IPX1 The manufacturer states the suitability of the
protected installation, if necessary by applying
additional measures

Work book | 2CPC 000 313 B0101 45

Notes

46 2CPC 000 313 B0101 | Work book

Installation and environmental conditions
Check list

3 Installation and ambient conditions of ASSEMBLIES

1

Conditions of use Information provided by the Measures/recommendations of the ASSEMBLY manufacturer Selection
planner / customer
Definition pursuant to standard This information is to be taken into account in the
IEC 61439-1 planning of ASSEMBLIES
Dimensions for Type of installation: None
_________
transport and To the wall (recess), to the wall,
installation free installation to base frame, _________
double floor _________
Aisle widths / escape routes: See IEC 60364-7-729 Minimum aisle widths and the direction of the
Room dimensions and access Requirements for special installations escape routes are to be taken into account in the
doors or locations – operating or maintenance planning of ASSEMBLIES
gangways

Distribution board: None Possible restrictions are to be stated

W ______
max. dimensions: W x H x D
max. weight H ______
D ______
kg ______
Transport: max. transport dimen- None Possible restrictions are to be stated,
W ______
sions W x H x D, such as only standing transport, max. acceleration
max. transport weight values H ______
Transport type, e.g. crane D ______
Accessibility at the construction
kg ______
site
Chemical influences None Type of the enclosure material
Chemical device version
Special installation / ventilation
Mechanical impact Sub-distribution board IK05
Indoor installation IK07
Outdoor installation

Enclosure material Sheet steel None

Plastic

Enclosure colour Comply with customer specifications /

tender documents

EMC Environment A Confirmation by the manufacturer in accordance

Non-public or industrial with environment A
LV networks / areas / installations
including strong sources of
interference
Environment B Confirmation by the manufacturer in accordance
Public LV networks such as with environment B
domestic, commercial and light
industrial locations

Work book | 2CPC 000 313 B0101 47

Notes

48 2CPC 000 313 B0101 | Work book

Chapter 1 – collecting the requisite data
Operating and servicing

How are ASSEMBLIES dimensioned?

1
ASSEMBLIES are dimensioned using the interface definition values.

Installation and
3 environmental conditions

Operating and
4 servicing

Connection to the Circuits and

1 electrical system 2 loads

1) Connection to the electrical system 2) Electrical cicuits and loads

– Nominal voltage of the incoming supply – Distribution circuits for load-side
– Electrical system subdistribution panels
– Rated current – Final circuits
– Short-circuit withstand strength
– Overvoltage
– Connecting cable

3) Installation and environmental conditions 4) Operating and servicing

– Indoor installations Operation through:
– Outdoor installations – Device activation
– Dimensions for transport and installation – Access control

Work book | 2CPC 000 313 B0101 49

Operating and servicing
Our solutions for internal forms of separation

Form 1

Form 2b

Form 4b

50 2CPC 000 313 B0101 | Work book

Operating and servicing
Internal forms of separation

Form Main criteria Further criteria Figure

1
Form 1 No separation

Form 2a Separation of busbars from functional units The terminals for external conductors
do not need to be separated from the
busbars.

Form 2b Separation of busbars from functional units The terminals for external conductors
are separated from the busbars

Form 3a Separation of busbars from functional units The terminals for external conductors
and separation of all functional units from do not need to be separated from the
one another. Separation of the terminals busbars.
for external conductors from the units, but
not from each other.

Form 3b Separation of busbars from functional units The terminals for external conductors are
and separation of all functional units from separated from the busbars
one another. Separation of the terminals
for external conductors from the units, but
not from each other.

Form 4a Separation of busbars from functional units The terminals for external conductors
and separation of all functional units from are in the same compartment
one another including the terminals for as the associated functional unit
external conductors which are an integral
part of the functional unit.

Form 4b Separation of busbars from functional units Terminals for external conductors
and separation of all functional units from are not in the same
one another including the terminals for compartment as the associated function
external conductors which are an integral unit, but in individual, separate, enclosed
part of the functional unit. protected spaces or compartments.

Work book | 2CPC 000 313 B0101 51

Notes

52 2CPC 000 313 B0101 | Work book

Operating and servicing
Characteristics and explanations

EN 50110-1 - Key terms

1
Nominated person
… a person, appointed by the customer, and who as electrician is technically in charge of the works
and takes ultimate responsibility for the work activities.

Skilled person (electrically)

… persons with relevant education, knowledge and experience and know-how of standards to
analyse possible hazards involved in the tasks assigned to them

Instructed person
… persons advised and/or instructed by skilled persons on the tasks assigned to them and the
possible hazards involved in improper behaviours and also advised on required protection systems,
personal protection equipment and devices.

Ordinary person
… a person who is neither a skilled person nor an instructed person.

Work book | 2CPC 000 313 B0101 53

Notes

54 2CPC 000 313 B0101 | Work book

Operating and servicing
Check list

4 Operating and servicing

1
Characteristics Information provided by the planner / customer Information provided by Selection
the manufacturer
Operation through: Skilled person (electrically) IPXXB
Instructed person IPXXB
Ordinary persons
IPXXC
Device activation Behind the door / cover
From outside

Access / door closure Lock

For semi-cylinder (central locking system)
Other

Accompanying standards:
EN 50110-1 Operation of electrical installations – general requirements
EN 50110-2 Operation of electrical installations / national annexes
IEC 60050 International electrotechnical vocabulary

Work book | 2CPC 000 313 B0101 55

Notes

56 2CPC 000 313 B0101 | Work book

Chapter 2
Distribution board design and design verification

How can the original manufacturer or the manufacturer verify the safety of an ASSEMBLY?

The new standard describes three design verification processes for an ASSEMBLY and requires a
routine verification for each marketed product
2

Testing Calculation / measurement Application of constructive rules

such as such as
– electrical –specified dimensions
such as
– mechanical –test steps
– Calculating of temperature rises
– thermal –ASSEMBLY orders,
or of short-circuit forces
tests in accordance with based on tested reference
– Measurement of clearances
the requirements stated in constructions
and of creepage distances
the standard

These processes are essentially implemented manufacturer will become original manufacturer
by the original manufacturer. In case that the for that alteration and will have to carry out the
ASSEMBLY manufacturer does not install an design verification in accordance with the
ASSEMBLY in compliance with the instructions described procedures.
of the original manufacturer, the ASSEMBLY

Work book | 2CPC 000 313 B0101 57

Notes

58 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Requirements arising from the standard

Sec. Characteristics to be verified verification by remarks / annexes

10.2.2 Resistance to corrosion ABB
10.2.3.2 Strength against abnormal heat and fire ABB
10.2.4 Resistance to UV radiation ABB 2
10.2.5 Lifting ABB
10.2.6 Mechanical impact ABB
10.2.7 Marking ABB
10.3 Degree of protection of enclosures ABB
10.4 Clearances and creepage distances ABB
10.5.2 Continuity of the connection between parts ABB
of the ASSEMBLY and the protective circuit
10.5.3 Short-circuit withstand strength of the ABB
protective circuit
10.6 Incorporation of equipment Manufacturer The ASSEMBLY manufacturer shall
comply with the design requirements
of the original manufacturer and of the
equipment manufacturer (8.6)
10.7 Internal electric circuits and connections Manufacturer The ASSEMBLY manufacturer shall
comply with the design requirements of
the original manufacturer (8.7)
10.8 Terminals for external conductors Manufacturer Compliance with the requirements of the
original manufacturer and of the device
manufacturer (8.8)
10.9.2 Dielectric properties ABB
Power-frequency withstand voltage
10.9.3 Dielectric properties ABB
Withstand voltage
10.10 Verification of temperature rises Manufacturer Annexes:
10.11 Short-circuit withstand strength Manufacturer Annexes:
10.12 Electro-magnetic compatibility (EMC) Manufacturer In general no verification necessary
Annexes:
10.13 Mechanical operation ABB

Work book | 2CPC 000 313 B0101 59

Notes

60 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Characteristics and explanations

10.2.2 Resistance to corrosion

The resistance to corrosion of ferrous metallic enclosures including internal and external ferrous
metallic constructional parts of the ASSEMBLY is to be verified There are two test methods.
Severity tests A and B. Severity test A applies to indoor installations and severity test B to out-
2
door installations.

These tests are described in IEC 60068.

The metallic ASSEMBLIES from STRIEBEL & JOHN are tested for indoor installations.

10.2.3.2 Strength against abnormal heat and fire
This paragraph describes the glow wire test according to IEC 60695.
It is used to verify the suitability of the materials used.
The glow wire tip temperatures are stated below and must have the following properties.
960 °C for parts necessary to retain current-carrying parts in position;
850 °C for enclosures intended for mounting in hollow walls;
650 °C for all other parts including parts necessary to retain the protective conductor.

10.2.4 Resistance to ultra-violet (UV) radiation

This test is only prescribed for enclosures and external parts of ASSEMBLIES intended for out-
door installation and made of plastic or metal and completely coated with insulating material.

UV test in accordance with ISO 4892.

This test is applied to enclosures made of insulating materials. This verification certifies that the
flexural strength (according to ISO 178) and the IZOD impact strength (Charpy test according to
ISO 179) of the insulating materials have not less than 70 % minimum retention.
Metal enclosures completely coated with insulating materials, pass this test when the adherence
of the synthetic material has a minimum retention of category 3 as provided for in ISO 2409.
This test does not need to be conducted if the original manufacturer is able to present data from
the material supplier certifying that material of the same type and thickness or thinner complies
with these requirements.

10.2.5 Lifting
For ASSEMBLIES equipped with lifting appliances compliance is verified by the following tests.
The highest number of sections allowed by the original manufacturer to be lifted in the same time
is to be equipped thus to achieve a weight of 1.25-times the maximum transport weight. With
the doors closed the ASSEMBLY shall be lifted using the lifting means specified by the original
manufacturer.
After this test, the ASSEMBLY must not show cracks or permanent deformation potentially
affecting its characteristics.

10.2.6 Mechanical impact

Mechanical impact tests are to be carried out as provided for in IEC62262.

Work book | 2CPC 000 313 B0101 61

Notes

62 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Characteristics and explanations

10.2.7 Marking
Markings made by moulding, pressing, engraving or similar, including labels with laminated plastic
surfaces, do not need to be tested separately. The test is described in this section and after the
test, the markings must be legible without additional tools.
2
10.3 Degree of protection of enclosures
The degree of protection is to be verified as provided for in IEC 60529.
Where an empty enclosure in accordance with IEC 62208 is used, it must be verified by surveys
that possible modifications which have been carried out do not impair the degree of protection.
No further testing is required here.

10.4 Clearances and creepage distances

Clearances and creep distances are to be tested in accordance with the requirements.

10.5.2 Continuity of the connection between parts of the ASSEMBLY and the protective
circuit
It is to be verified that the different parts of the ASSEMBLY are effectively connected to the
terminal of the incoming external protective conductor and that the resistance of the circuit does
not exceed 0.1 Ω.
Verification is to be carried out using a resistance measurement device which is capable of
supplying a current of not less than 10 A (AC or DC). The current is passed from each part to the
terminal for the external protective conductor. The resistance must not exceed 0.1 Ω.

10.5.3 Short-circuit withstand strength of the protective conductor

The rated Short-circuit withstand strength is to be verified. Verification may be made by
comparison with a reference design or by test.
The original manufacturer has to define the reference design used for testing.

10.6 Incorporation of equipment

Compliance with the design requirements 5 for the incorporation of equipment is to be
confirmed by the original manufacturer.

10.7 Internal electric circuits and connections

Compliance with the design requirements for internal electrical circuits and connections is to be
confirmed by the original manufacturer.

10.8 Terminals for external conductors

Compliance with the design requirements for terminals for external conductors shall be confirmed
by the original manufacturer.

10.9.2 Dielectric properties Power-frequency withstand voltage

For this test, all electrical equipment of the ASSEMBLY is to be connected, except those
which are designed for lower test voltages in compliance with the applicable provisions;
current consuming devices (e.g. windings, measuring instruments, surge arresters), in which
the application of a test voltage could cause the current to flow, are to be disconnected.
Such devices are to be disconnected at one of their terminals unless they are designed for
the full test voltage, in which case every terminal may be disconnected.

Work book | 2CPC 000 313 B0101 63

Notes

64 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Characteristics and explanations

10.9.3 Dielectric properties Withstand voltage

For this test, all electrical equipment of the ASSEMBLY is to be connected, except those
which are designed for lower test voltages; current consuming devices (e.g. windings,
measuring instruments, surge arresters), in which the application of a test voltage could
2
cause the current to flow, are to be disconnected. unless they are designed for the full test
voltage, in which case every terminal may be disconnected. For tolerance variations of the
test voltage and for the selection of the test devices, see IEC 61180.

Work book | 2CPC 000 313 B0101 65

Notes

66 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Verification of temperature rises

10.10 Verification of temperature rise

Next to the option to verify temperature rises inside low-voltage switchgear and controlgear
ASSEMBLIES using a test, DIN EN 61439-1 describes two calculation methods which may
also be used:
2
Verification of temperature rise up to 630 A
– Comparison between the installed power loss and the power loss that can be dissipated in
the range up to 630 A (only possible if there are no horizontal partitions)

For the verification, see page 69

Temperature rise verification up to 1600 A

– Verification that temperature rise limits are not exceeded in the distribution board,
this applies to the range up to 1600 A (according to DIN EN TR 60890)
For the verification, see page 85

Temperature rise verification up to 1600 A

– Temperature rise verifications above 1600 A are to be made by testing

Work book | 2CPC 000 313 B0101 67

Notes

68 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Verification of temperature rises

10.10 Verification of temperature rise

Next to the option to verify temperature rises inside low voltage switchgear and controlgear
ASSEMBLIES using a test, IEC 61439-1 describes two calculation methods which may
also be used:
2
– Comparison between the installed power loss and the power loss that can be
dissipated in the power range up to 630 A (only possible if there are no horizontal
partitions)
– Verification that temperature rise limits are not exceeded in the distribution board,
this applies to the power range up to 1600 A (according to IEC TR 60890)

Verification of temperature rise up to 630 A

Temperature rises up to 630 A may be verified under the assumption that the heat loss of
all equipment and electrical conductors is evenly distributed across the enclosure. For this
method the standard demands that no internal form separation restricts the heat flow.
Since the actual distribution of the heat sources in enclosures does not necessarily com-
ply with the above-stated ideal conditions, the standard requires for calculated verification
methods (up to 630 A) the application of a reduction factor (derating factor).
There are two different starting conditions: a) the operating currents (load currents) are
known or b) the rated current is specified by the preselection of equipment.

Example I
The operating currents are known and the rated current for the incoming supply is to be
determined from the sum of the outgoing operating currents:

3 outgoing circuits having an operating current of IB = 150 A

with an assumed load factor n = 0.9 taken from table 101, EN 61439-2
(Attention: Part 3 provides for another reduction of the load factors)

As incoming equipment a fuse switch disconnector size III (630 A) would have to be
selected, for example.

*With an assumed load factor of n = 0,9 taken from table 101 of IEC 61439-2
(Attention part 3 provides for an other reduction of the load factors)

**Assumed load factor pursuant to section 10.10.4.2.1 of part 2 of the standard

Work book | 2CPC 000 313 B0101 69

Notes

70 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Verification of temperature rises

Example II

The operating current of the outgoing circuit is defined by the equipment selection so that
the rated current of the outgoing circuit is calculated as follows:
2
Disconnector size 00, 160 A

Inc=IB · 0.8* = 160 A · 0.8 = 128 A

Reducing the rated current of each circuit leads also to another reduction of the power loss
to be taken into account regarding the power losses occurring with the rated current.

Example III

Ith= 160 A at ambient air temperature, power loss of the equipment PVth=30 W

Inc= IB · 0.8 = 160 A · 0.8 = 128 A

𝑃𝑃𝑉𝑡ℎ=𝐼𝐼𝑛2; 𝑃30=1281602; 𝑃=19.2𝑊

Verified ASSEMBLIES are to be calculated so that the wiring sections are to be designed in
accordance with the current rating of the associated circuit and all sections shall have not
less than 1.25 times (125 %) of the current rating.

Example IV

Ith=160 A at ambient air temperature

Inc=IB · 0.8 = 160 A · 0.8 = 128 A

with a derating factor of 0.8 to be taken into account for the calculation up to 630 A.

Inc’ · 1.25 = 160 A

Single-core cables, touching free in air in accordance with Table H.1, Anne H, IEC 61439-1

Inc’ = 160 A Cross-sectional area of conductor: 70 mm² (max. operating current 171 A)

*Assumed load factor pursuant to section 10.10.4.2.1 of part 2 of the standard

Work book | 2CPC 000 313 B0101 71

Notes

72 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Verification of temperature rises

Verification of temperature rise up to 630 A

The following table may be used for a simplified calculation up
to 630 A:
2
Rated Pvn Derating 1)
Rated current Assumed Assumed Power loss Sum of
current of the of a circuit Inc load factor 2) operating of a device the power
equipment In current IB at IB losses
Manufacturer

(A) (W) (A) (A) (W) (W)

Description

IB = Inc · PB = Pvn · PvB = PB ·

Position

Number

assumed
Type

(IB/In)2 number
load factor

Sum of the installed power losses

Wiring power loss (%) 3) 30
Power loss dissipation of the enclosure
Difference = power loss dissipation – sum of the installed power loss= Pvzul – ∑PvB

1) According to IEC 61439-2 Table 101 – Values of assumed loading – depending on the number of equipment used in the same time
2) Manufacturer information for equipment under different conditions, but not less than 0.8 in line with section 10.10.4.2.1c
3) The wiring power loss is assumed as percentage of the equipment power losses – proposal: 30 %

If there is a positive difference between the dissipated power losses and the sum of the installed power losses, the
temperature rise of the low voltage switchgear and controlgear ASSEMBLY is verified! In which case the ASSEMBLY
manufacturer may indicate a RDF of 100 % for the complete installation since sufficient design reserves have been
taken into account.

If there is a negative difference between dissipated power losses and installed power losses, further action is
required in the field:

– Ventilation of the enclosure
– Selecting a larger enclosure

Or, as a third option, the manufacturer may also reduce the rated diversity factor:

– Determining of a smaller RDF (≤ 80 %)

The RDF is the percent value of the rated current which the ASSEMBLY may carry continuously and simultaneously
taking into account the mutual thermal influences.

dissipated power loss

installed power loss

It may be specified by the ASSEMBLY manufacturer for the entire low voltage switchgear and controlgear ASSEMBLY
combination or for groups of outgoing circuits.

You will find the necessary information on the installed power losses for our enclosures in the technical specifications
of our catalogues and in our design software.

Work book | 2CPC 000 313 B0101 73

Example calculation

1x Sace T5 20,35 W

6x XLP00 58,89 W

24 x F204A-40/0,03 46,45 W

144 x S201-B16 82,94 W

74 2CPC 000 305 B0101 | Work book

Distribution board design and design verification
Temperature rise verification up to 630 A

Rated Pvn Derat- Rated current assumed assumed Power loss of Sum of the
current of the ing 1) of a circuit Inc load factor 2) operating a device at IB power losses
equipment In current IB
Manufacturer

(A) (W) (A) (A) (W) (W)

2
Description

IB = Inc · PB = Pvn · PvB = PB

Number

assumed load
Type

(IB/In)2 number
Pos

factor

Sum of the installed power losses ∑Pv

Wiring power loss (30 %) 3) 30

1) According to DIN EN 61439-2 Table 101 – Values of assumed loading – depending on the number of equipment used in the same time
2) Manufacturer information for equipment under different conditions, but not less than 0.8 in line with section 10.10.4.2.1c
3) The wiring power loss is assumed as percentage of the equipment power losses – proposal: 30 %

Scenario 1 Scenario 2

Pv dissipatable = 300 W Pv dissipatable= 150 W

ΔPv = Pv diss - Pv total = 300 W – 271.23 W = 28.77 W ΔPv = Pv diss - Pv total = 150 W - 271.23 W = -121.23 W

Positive number Negative number

Verified built-in power loss smaller than power loss to larger enclosure

be dissipated and or

consequently compliance with the standard. reduced RDF

150 W =0.74
271.23 W

Work book | 2CPC 000 313 B0101 75

Notes

76 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Temperature rise verification up to 630 A

Solution

Pv equipment 208.63 W
MK308 MK308
2
Pv wiring 62.59 W
WRM381

WRM381

Pv total 271.23 W
MG304 MG304
Pv cabinet 354.50 W

ZWM166
MB120 MA292T MG302
ZWM371
ZWM371

ABB T5

I on

0 off

MT336

ABB XLP00 ABB XLP00 ABB XLP00 ABB XLP00 ABB XLP00 ABB XLP00

MN274

MB316

H: 1950 mm
B: 1550 mm
T: 350 mm

Distribution board: Floor-standing cabinet with door

Make: ABB STRIEBEL & JOHN
Type: TW612G
Height: 1950 mm
Width: 1550 mm
Depth: 350 mm
Degree of protection: IP55
Protection class: I, earthed
Colour: RAL 7035
Incoming cable from the: bottom
Outgoing cables to: the top
Cable entry: Membrane flanges

Work book | 2CPC 000 313 B0101 77

Notes

78 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Temperature rise verification up to 630 A

Example 1
3/4A

MK307
2

MG434

MR202 MM112
Verlustleistung der Betriebsmittel
Pos Type Bezeichnung Stück PV (In) AF RDF PV (eff.wirks.)

1.1.2 ZE60 ZE60 Reit.Sich.Block 6,00 0,00 0,00 0,81 0,00

1.1.2.1 SI-D02-35 D02 Sicherungseinsatz 35 18,00 2,80 0,00 0,81 0,00

M 1.1.3
1.3.1 S203-B16
60mm - SS-Einspeiseabdeckung 16-50mm²
S203-B16 Sicherungsautomat B-Char.,6kA
1,00
3,00
0,00
7,50
0,00
0,00
0,81
0,81
0,00
0,00
1.3.2 S201-B16 S201-B16 Sicherungsautomat 21,00 2,50 0,00 0,81 0,00
1.3.3 F204A-40/0,3 F204A-40/0,3 FI-Schutzschalter 4P,Typ A,4 1,00 8,40 0,00 0,81 0,00
1.3.4 S201-B10 S201-B10 Sicherungsautomat B-Char.,6kA 6,00 2,10 0,00 0,81 0,00
1.3.5 E203/63R E203/63R Trennschalter 3P,63A,Schaltgriff r 1,00 4,00 0,00 0,81 0,00
1.3.6 OVRT24L40-275 OVR T2 4L 40-275 P TS QS SPD Typ 2 für 2 1,00 0,00 0,00 0,81 0,00
1.3.7 F204A-40/0,03 F204A-40/0,03 FI-Schutzschalter 4P,Typ A 4,00 8,40 0,00 0,81 0,00

Berechnung und Vergleich von Verlustleistung nach 10.10.4.2.1

Bemessungsstrom max. 630A 1 Abteil

Distribution board: Wall-mounted distribution board

with door Hersteller der Schaltgerätekombination

Make: ABB STRIEBEL & JOHN Kunde:

Auftragsnummer:

Type: 3/4A Projekt:

Normenschulung_61439
Typ: A-Wandschrank

Height: 1250 mm Schaltschrank 3/4A Wandschrank IP43

Familie

Width: 800 mm
Type 3/4A
Abmessungen [mm] Höhe: 1.250,00 Breite: 800,00 Tiefe: 215,00
Einbaubare
101,50

Depth: 215 mm
Verlustleistung [W]

Betriebsmittelverlustleistung effektiv wirksam 77,26 [W]

Degree of protection: IP43

Seite 2 von 2
Verlustleistung der Leitungen effektiv wirksam 23,20 [W]
Zusätzliche Verlustleistung effektiv wirksam 0,00 [W]

Protection class: II, double insulated Errechneter mittlerer RDF

Eingebaute Verlustleistung effektiv wirksam 100,50 [W]

Colour: RAL 9016 Bewertung Eingebaute Verlustleistung

<= Einbaubare
i.O. X

Verlustleistung

Incoming cable from the: the top Eingebaute Verlustleistung n.i.O.

>= Einbaubare
Verlustleistung

Outgoing cables to: the top

Prüfung durchgeführt:

Cable entry: Membrane flanges

(Ort und Datum der Ausstellung) (Monteur: Name und Unterschrift od. gleichwertiges Kennzeichen des Befugten)

(Ort und Datum der Ausstellung) (Prüfer: Name und Unterschrift od. gleichwertiges Kennzeichen des Befugten)

Seite 1 von 2

Work book | 2CPC 000 313 B0101 79

Notes

80 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Temperature rise verification pursuant to DIN EN 60890

Temperature rise verification up to 630 A

Example 2

TG212G TG212G
2
MK209 MK209

Klemmen Klemmen

MG424 MG424

MG422 MG422

MR202 MR202

Distribution board: Floor-standing distribution

board with door
Make: ABB STRIEBEL & JOHN
Type: 2 x TG212G
Height: 1950 mm incl. 100 mm plinth
Width: 1100 mm
Depth: 225 mm
Degree of protection: IP55
Protection class: I, earthed
Colour: RAL 7035
Incoming cable from the: the top
Outgoing cables to: the top
Cable entry: Membrane flanges

Work book | 2CPC 000 313 B0101 81

Notes

82 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Temperature rise verification pursuant to DIN EN 60890

Temperature rise verification up to 630 A

Example 3
Geprüfter Bereich
(TPM-Anlage über EDS konfiguriert)

15/8RLG6A 1/8RLG6A 3/8RLG6A 2/8RLG6A

gray area
2
MK209 Tested area configured using EDS Power
CON

white area
Temperature rise verification to be made by
the procedure specified in DIN EN 60890
MG424

ABB SACE X1

00

O I

Zu berechnender Bereich
(CombiLine Feld)

MG424

- Einbaugeräte (Steuerungsgeräte) vernachlässigbar

- Energieabgänge in Eigenverantwortung des SAB´s

Distribution board: ASSEMBLY tested pursuant to

DIN EN 61439
Make: ABB STRIEBEL & JOHN
Type: TriLine power module system
Height: Total 2013 mm
Width: Total 2331 mm
(3 transport units)
Depth: 625 mm
Degree of protection: IP30
Protection class: I, earthed
Colour: RAL 7035
Incoming cable from the: bottom through plinth
Outgoing cables to: the top through flange plates
Busbar: 2000 A

Work book | 2CPC 000 313 B0101 83

Notes

84 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Verification of temperature rises

Verification of temperature rise up to 1600 A

For temperature rise verifications it is also possible to use a
method to calculate the temperature rise limits according to
IEC 61439.
2
This method (in accordance with IEC TR 60890) is implement-
ed in our Panel Design Configurator software.

Work book | 2CPC 000 313 B0101 85

Notes

86 2CPC 000 313 B0101 | Work book

 Distribution board design and design verification
Verification of the short-circuit withstand strength

10.11 Verification of the Short-circuit withstand strength:

We have carried out numerous Short-circuit tests for our low voltage switchgear and
controlgear ASSEMBLIES and for our system components, which we can use for the
creation of our design verifications. In this section we will specify some general terms for
2
you and give you some information to assist you in your daily selection of corresponding
components.

The peak short-circuit current Ip is used to assess mechanical strength. The thermal effects
of the short-circuit current can be assessed using the effective value Icp.

I [kA] System I [kA] Low-voltage switchgear and

Ip IpK
controlgear ASSEMBLIES

Short-circuit
Icp [kAeff] protective device
Icp [kAeff] ICC [kAeff]
(SCPD)
IIN ICW [kAeff]
N IIN
N

t t[s]
[s] t [s]

tShort-circuit = t0 DC current share t2

Ip = Peak short-circuit current Ipk = Rated peak withstand current

Icp = Uninfluenced short-circuit current (effective value) (strength of the ASSEMBLY against electro-dynamic
forces; manufacturer information)
Icw = Rated short-time withstand strength
(strength of the ASSEMBLY against the heat effect
of the current (effective value); manufacturer infor-
System Limit* Installation
mation)
IP ≤ 17 kA ≤ Ipk Icc = conditional rated short-circuit current
(strength of the ASSEMBLY against heat effects and
the electro-dynamic forces of the current defined in
Icp (eff) ≤ 10 kA ≤ Icw (eff)
length and importance by a Short-circuit protective
device (effective value); manufacturer information)
Icp (eff) ≤ 10 kA ≤ Icc (eff)

A verification of the Short-circuit withstand strength is not required if the short-circuit

current at the supply position is below the limits!

*Assumed to section 10.11.2 IEC 61439-1

Work book | 2CPC 000 313 B0101 87

Notes

DIN EN 61439-1 / VDE 0660-600-1 Table 7

Effective value of the short-
circuit current kA cos n

I≤5 0.7 1.5

5 < I ≤ 10 0.5 1.7

10 < I ≤ 20 0.3 2
20 < I ≤ 50 0.25 2.1
50 <I 0.2 2.2

* The values match most use cases. At certain installation positions, e.g. in close proximity to transformers or genera-
tors, there may be lower power factor values, which may effect that the peak value of the uninfluenced short-circuit
current will be the limiting value instead of the effective value.

88 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Short circuit – key terms*1

DC portion of the short-circuit current

[Ieff] Effective value of the alternating current = direct current equivalent:

Direct current size at an ohmic load
The same electrical energy in a given period of time and/or
converting the same power as alternating current

i(t) = course of the alternating current over the time t

ip = peak value (instantaneous value) of the alternating current
iD = short-time current
iD eff = effective value of the short-time current
in = nominal value of the alternating current

Ratio between surge current and short-time current*2

For approximate calculation purposes: Ip= ID eff x n

*1 See also EN 60909-0

*2 See also section 9.3.3 IEC 61439-1 and table 7

Work book | 2CPC 000 313 B0101 89

Notes

90 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Verification of the short-circuit withstand strength

The short-circuit protective device may be installed inside or outside the

low voltage switchgear and controlgear ASSEMBLY:

Ip ≤ Ipk
t1

t2

Ip ≤ Ipk Icp ≤ Icw

Icp ≤ Icw or
Icp ≤ Icc
Ip / Icp

Ip / Icp
t1

t2

In this case it must be made sure that the short-circuit current Ip and the
uninfluenced short-circuit current Icp at the connection point are smaller
and/or equal to the values specified by the manufacturer:

Ip ≤ Ipk

Icp ≤ Icw

If not duration is indicated for Icw a test length t of 1 sec. is to be used.

Work book | 2CPC 000 313 B0101 91

Notes

92 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Verification of the short-circuit withstand strength

If the ASSEMBLY manufacturer specifies the ASSEMBLIES or circuits of ASSEMBLIES

conditional rated short-circuit current for the protected by current-limiting devices having
connection point (Icc) also the breaking capacity a cut-off current not exceeding 17 kA at the
and the current limitation characteristic (I2t, Ipk) of maximum allowable prospective short-circuit
2
the specified, upstream Short-circuit protective current at the terminals of the incoming circuit
device (taking into account the data submitted by of the ASSEMBLY.
the device manufacturer) are to be stated. Auxiliary circuits of ASSEMBLIES intended to be
For simplification reasons, also the type and connected to transformers whose rated power
name of the device manufacturer (and of the fuse does not exceed 10 kVA for a rated secondary
inserts, if necessary) should be inserted here. voltage of not less than 110 V, or 1.6 kVA for a
rated secondary voltage less than 110 V, and
A verification of the short-circuit withstand whose short-circuit impedance is not less than
strength is not required for: 4 %. All other circuits are to be verified.
− ASSEMBLIES with a rated short-time
withstand current (Ipk) or rated conditional (for a text excerpt see DIN EN 61439-1 (VDE 0660-600)
short-circuit current (Icc) not exceeding 10 kA 10.11.2)
effective value.

Example: Limiting the short-circuit current and the cut-off current ID

and cut-of energy I²t by fuses.

t short circuit

Work book | 2CPC 000 313 B0101 93

Notes

94 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Short-circuit current at the supply position

Connection point and SCPD in an ASSEMBLY

2
Impedance of the
cable run

SCPD in front of the

ASSEMBLY

Impedance of the
cable run

The short-circuit current at the supply position might be significantly reduced

due to impedances!

The actual occurring short-circuit current might be determined using graphical calculation
methods or software tools such as e-Design.

In order to solve the question whether a verification of the Short-circuit withstand strength by test or
derivation is required or not, the values of the prospective uninfluenced short-circuit current Icp or of the
expected maximum peak current Ip at the connection point are to be determined.

(See IEC 61439-1 table 7)

Peak value of the short - circuit current Ip [kA]

Ip = Icp (eff) x n

Effective value of the short - circuit current Icp (eff) [kA]

Icp (eff) = Ip x 1/n

Work book | 2CPC 000 313 B0101 95

Notes

96 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Short-circuit current at the supply position

Example 1
Always verify whether the system's short-circuit current to be expected at the
specified place of use (supply position) does not exceed the short-circuit current 2
values specified by the manufacturer for its components and/or the manufacturer
for the planned ASSEMBLY. To do so, you may use the following examples

Prescription of the planner for the Technical Data given by the original manufacturer,
connection point of the switchgear for example, for short-circuit strength of a bus bar
ASSEMBLY in the grid system carrier: Icw (eff) = 30kA / Ipk = 50 kA at a specified
distance between the bus bar carrier example 500 mm
Icp (eff) = 15kA

Manufacter Kurzschlussfestigkeits-Diagramm

no Sammelschienenhalterabstand (mm)
a) Icp (eff) = 15kA ≤ Icw (eff) = 30kA
a and b
fulfill?
b) Ip = Icp (eff) x n = 30kA ≤ Ipk = 50kA

It is necessary to consider:
if a bus bar carrier can be used with
yes a higher short-circuit strength.

It has to be checked: whether a short

circuit protection device (SCPD) can be
used whose short circuit current limiting
characteristics are sufficient to prevent see examle: 2
The direct connection of the bus bar system to the grid, the peak short circuit current Ipk from
in compliance with the stated support distances is possible! being exceeded.

Work book | 2CPC 000 313 B0101 97

Notes

98 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Short-circuit current at the supply position

Example 2
If an ASSEMBLY for which the manufacturer specifies an Icw (eff) , is to be connected to
a system in which the peak value of the short-circuit current from the system (peak 2
short-circuit current Ip) is higher than the rated peak short-circuit current specified by the
manufacturer Ipk than a SCPD must be inserted upstream which is able to limit the peak
value correspondingly.

Prescription of the planner for the Details of the original manufacturer, for example,
connection point of the switchgear for the short-circuit strength of bus bar carrier:
assembly in the network Icw (rms) = 30kA / Ipk = 50 kA at a specified distance between
bus bar carrier example 500mm
Icp (eff) = 28kA

Manufacter

a) Icp (eff) = 28kA ≤ Icw = 30kA

no
a and b
fulfill?
b) Ip = Icp (eff) x n = 58.8kA ≤ Ipk not fulfill!

yes

It has to be checked:
whether a short circuit protection device
(SCPD) can be used whose short circuit
current limiting characteristics are sufficient
The direct connection of the bus bar system to the grid system, to prevent the peak short circuit current
in compliance with the stated support distances is possible! Ipk from being exceeded.

Work book | 2CPC 000 313 B0101 99

Notes

100 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Short-circuit current at the supply position

Evaluation of the cut-off current in combination with an NH fuse

An NH fuse as upstream SCPD may sufficiently limit the cut-off current!
2

ICOC ≈ 42 kA

ICOC system = 28 kA

Work book | 2CPC 000 313 B0101 101

Notes

102 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Short-circuit current at the supply position

Example 3
The ASSEMBLY manufacturer or the original manufacturer may specify a conditional
rated short-circuit current Icc (eff) and a suitable protection device. An ASSEMBLY is only 2
suited for a use at the connecting point when the expected short-circuit current at the
supply position Icp does not exceed the specified Icc .

Prescription of the planner for the Information provided by the original

connection point in the grid system: manufacturer or manufacturer of the
switchgear assembly:
Icp (eff) = 28kA
Icc (eff) = 30kA

Manufacter

Icp (eff) ≤ Icc (eff)

yes no

The system is suitable for The system is not suitable

the connection point! for the connection point!

Work book | 2CPC 000 313 B0101 103

Notes

104 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Short-circuit current at the supply position

Example 4
If the expected short-circuit current at the supply position, the cut-off current and the
power-limiting properties of a protective device to be inserted upstream are known, these
2
values may also be matched to find out whether an ASSEMBLY may be used in a given
system.

Default of the planner for the Details of the original manufacturer’s specifications
connection point of the switchgear for the switchgear assembly:
assembly in the network
Ipk = 63kA
Icp = 50kA Icw = 30kA

Manufacter

Icw (eff) = 30 kA = 3 x104 A; t=1s

Icw (eff) ²t = 9 x108 A²s = 900 x106 A²s = 900 MA²s

a) Icp (eff) Netz = 50kA ≤ Icw (eff) not fulfill!
a and b
b) Ip Netz = Icp (eff) Netz x n = 110kA ≤ Ipk not fulfill! fulfill?
no

yes

It has to be considered:
whether a short-circuit protection device (SCPD)
can be used whose pass energy is still dominated
by the switchgear (I²t SCPD ≤ Icw (rms) ² t) and its
The direct connection of the switchgear assembly without Kurzschlussstrombegrenzende properties sufficient
connecting device of a suitable SCPD is possible! to peak short-circuit current limiting as far as that
IPK does not exceed is (Ip SCPD ≤ Ipk).

Work book | 2CPC 000 313 B0101 105

Notes

106 2CPC 000 313 B0101 | Work book

 Distribution board design and design verification
Short-circuit current at the supply position

Kurzschluss  
Kurzschlussstrom   am  
ABB SACE T-max T5 400 A as E inspeisepunkt  
upstream SCPD
 
ABB  SACE  T-­‐max  T5  400A  als  vorgeschaltetes  SCPD   2
 
Evaluation ofdthe
Beurteilung   er  Dcut-off
urchlassenergie   energy            BEvaluation
eurteilung  ofder  
theStrombegrenzung  
power limitation
 
 
 
 
 
 
 
 
 
I²t LS ≈  3   ,2  x10  A²s
6
ID LS ≈  32  k A
 
 
 
 
 
 
 
 
 
 
  Icp (eff) Netz = 50 kA Icp (eff) Netz = 50 kA
 
 
6 6
  I²t LS ≈  3,2  x10  A²s    <  Icw (eff) ²t = 900 x10 A²s   Ip LS ≈  32  kA <  Ipk = 63 kA

 
 
Durch  den   An EABB
insatz  
SACEeines  T-max
Leistungsschalters  
T5 400 used Aas BB  upstream
SACE  T-­‐max  
SCPD T5  4would
00  als  sufficiently
vorgeschaltetes  protect SCPD  
the w äre  die  
ASSEMBLY!
Anlage  ausreichend  geschützt!    
 
 
 
 
 
 
 
 
 
 
 
 
 

Work book | 2CPC 000 313 B0101 107

Notes

108 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Transformer nominal values table

For many cases it may be assumed that the short-circuit current will not
exceed the limits* specified.

Transformer nominal values

Nominal voltage
UN 230/400 V 525 V 400/690 V
Short-circuit voltage
UK 4% 6% 4% 6% 4% 6%
Nominal Nominal Short-circuit current IK Nominal Short-circuit current IK Nominal Short-circuit current IK
rating SN current IN current current
IN IN
[kVA] [A] [A] [A] [A] [A] [A] [A] [A] [A]
50 72 1805 - 55 1375 - 42 1042 -
100 144 3610 2406 110 2750 1833 84 2084 1302
160 230 5776 3850 176 4400 2933 133 3325 2230
200 280 7220 4860 220 5500 3667 168 4168 2784
250 360 9025 6015 275 6875 4580 210 5220 3560
315 455 11375 7583 346 8660 5775 263 6650 4380
400 578 14450 9630 440 11000 7333 336 8336 5568
500 722 18050 12030 550 13750 9166 420 10440 7120
630 910 22750 15166 693 17320 11550 526 13300 8760
800 1156 - 19260 880 - 14666 672 - 11336
1000 1444 - 24060 1100 - 18333 840 - 13920
1250 1805 - 30080 1375 - 22916 1050 - 17480
1600 2312 - 38530 1760 - 29333 1330 - 22300
2000 2888 - 48120 2200 - 36666 1680 - 27840
2500 3616 - 60210 2750 - 45833 2090 - 34830
3150 4546 - 75770 3464 - 57730 2635 - 43930

Rated currents and short-circuit current of standard transformers

SN [kVA] = Apparent power of the transformer

UN [V] = Nominal voltage of the transformer
IN [A] = Nominal current of the transformer
UK [%] = Short-circuit voltage of the transformer
IK [A] = Short-circuit current of the transformer

IN =SN /(√3*UN) IK =(IN / UN [%])*100

* See chapter 2, section 10.11

Verification of the short - circuit strength

Work book | 2CPC 000 313 B0101 109

Notes

110 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Characteristics and explanations

10.12 Electro-magnetic compatibility (EMC)

An ASSEMBLY'S functional units must undergo the following tests.
Emitted-interference and interference-immunity tests are to be carried out in
accordance with the applicable EMC standards and the ASSEMBLY manufacturer will
2
have to detail every action required to verify the performance criteria of an
ASSEMBLY (such as the use of holding times).

10.13 Mechanical operation

This verification must not be carried out for such ASSEMBLY parts (e.g. withdrawable
circuit breakers) which have already been type tested according to the applicable
provisions unless their mechanical function has changed through the process of
installation.

For those parts which need to be verified (see 8.1.5), proper mechanical functioning
has to be verified after their installation to an ASSEMBLY. The number of operating
cycles shall be 200.

At the same time, the function of the locking devices associated with these movements
is to be tested. A test will be passed satisfactorily if the operation of the devices,
interlocks, the defined degree of protection, etc. are not impaired and if the effort
required to operate is practically the same before and after testing.

Work book | 2CPC 000 313 B0101 111

Notes

112 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Devices from other manufacturers

In general, our low voltage switchgear and This means that (subject to the positive outcome
controlgear ASSEMBLIES and the system of a mechanical test), products from other manu-
components which we offer are tested with ABB facturers might be incorporated.
2
equipment. This manufacturer, however, who offers this
In case that devices from another manufacturer product (and who thus becomes original manu-
will be used as short-circuit protective devices facturer due to the installation of the other prod-
in low voltage switchgear and controlgear uct as provided for in IEC 61439-1), should carry
ASSEMBLIES, a new short-circuit test has out a short-circuit test.
necessarily to be carried out.

Work book | 2CPC 000 313 B0101 113

Notes

114 2CPC 000 313 B0101 | Work book

Distribution board design and design verification
Form sheet examples

Our form sheets assist you as responsible manufacturer in the preparation of

your design verifications.

Design verification part I

Company stamp
Manufacturer of the ASSEMBLY

Customer:
Order number:
Project:
Design verification part II

Only valid in connection with: Design verification part I

Type:

For low-voltage switchgear and controlgear ASSEMBLIES consisting of several parts and for separate observations to verify
the following characteristics: When 10.11 Short circuit withstand strength, 10.12 Electromagnetic Compatibility (EMC) have
Low-voltage switchgear and controlgear ASSEMBLIES
been carried out, please enter the marking of the part of the low-voltage switchgear and controlgear ASSEMBLY here:

¨ 
 
 
Power Switchgear Combination (PSC) Design verification pursuant to IEC 61439-2 / VDE

¨ 
 
 
Sub-distribution board (DBO) Design verification pursuant to IEC 61439-3 / VDE Sec. Characteristics to be verified Verification by Remarks / annexes
10.2.2 Resistance to corrosion ABB
10.2.3.2 Strength against abnormal heat and fire ABB
ASSEMBLY rating data:
10.2.4 Resistance to UV radiation ABB
(Required data from step 1: Collecting the requisite data)
10.2.5 Lifting ABB
10.2.6 Mechanical impact ABB
Rated voltage: _________ V Short-circuit withstand strength
10.2.7 Marking ABB
Rated frequency: _________ Hz Icc: ___________ kA
10.3 Degree of protection of enclosures ABB
Network system: ¨TN ¨TT ¨IT Icw: ___________ kA 10.4 Clearances and creepage distances ABB

Rated current of the ASSEMBLY InA: ___________ A Ipk: ___________ kA 10.5.2 Continuity of the connection between ABB
parts of the ASSEMBLY and the
Rated impulse withstand voltage (Uimp): ___________ kV protective circuit
10.5.3 Short-circuit withstand strength of the ABB
(enter only applicable values)
protective circuit
10.6 Incorporation of equipment Manufacturer The ASSEMBLY manufacturer shall
Verified for (see Annex – Part II): comply with the design requirements
of the original manufacturer and of the
equipment manufacturer (8.6)
10.7 Internal electric circuits and connections Manufacturer The ASSEMBLY manufacturer shall
comply with the design requirements of
the original manufacturer (8.7)
10.8 Terminals for external conductors Manufacturer Compliance with the requirements of
the original manufacturer and of the
device manufacturer (8.8)

Design verification performed: 10.9.2 Insulation characteristics ABB

Power-frequency withstand voltage
10.9.3 Insulation characteristics ABB
Withstand voltage
Place / Date Name and signature of the performer 10.10 Verification of temperature rises Manufacturer Annexes:
10.11 Short-circuit withstand strength Manufacturer Annexes:
10.12 Electro-magnetic compatibility (EMC) Manufacturer In general no verification necessary
Place / Date Name and signature of the tester Annexes:
10.13 Mechanical operation ABB

K-0318 Design verification Part I • PDF 05/2015 • 2CPC 000 318 L0201 Copyright © 2015 STRIEBEL
Annexes :
& JOHN • All rights reserved

Design verification performed:

Place / Date Name and signature of the performer

Place / Date Name and signature of the tester

K-0319 Design verification Part II • PDF 05/2015 • 2CPC 000 319 L0201 Copyright © 2015 STRIEBEL & JOHN • All rights reserved

Work book | 2CPC 000 313 B0101 115

Notes

116 2CPC 000 313 B0101 | Work book

Chapter 3
Building / manufacture of the distribution board

Constructional requirements Section from

IEC 61439-2, 3
3.1 ASSEMBLY of individual components / groups of components to enclosures / cabinets
– Please observe the information in our catalogues / ASSEMBLY instructions
– Observing the protective measures for switchgear in
– Protection class I (with protective conductor) 8.4.3.2
– Protection class II (double insulation) 8.4.4
3.2 Installation of the devices
– The devices must be installed according to our instructions and/or the instructions of the device manufacturer 8.5 3
– Care should be taken in particular to ensure: 8.5.4
– the accessibility of the devices 8.5.5
– sufficient heat dissipation / ventilation 8.7
– For installation distribution boards the protective devices must be suited for an operation by ordinary people 8.5.3
3.3 Wiring inside switchgear
– General requirements for the wiring of bare and insulated conductors
– Selecting the cross-sections 8.6.3 +
– Recommendation of the cross-sections depending on the load capacities and types of installation Annex H
– Selecting the cross-sections of N, PE and PEN conductors
– Cross-section of N conductors
– Up to 16 mm² including, 100 % of the associated phase conductors
– Above 16 mm², 50 % of the associated phase conductors, not less than 16 mm² 8.6.1
– Cross-section of PEN conductors
– PEN min. 10 mm² for CU and 16 mm² for Al, not smaller than the neutral conductor
It is assumed that the neutral conductor will not exceed 50 % of the phase conductor currents. Due to the usual operating 8.4. 3.2.3
conditions (e.g. harmonics, non-synchronous loads due to AC consumers) the N, PEN conductor should correspond to the cross
section of the phase conductors.
– Cross-section of PE conductors
– Earthed and short-circuit protected installation 8.4.3.2.3 +
Table 3
– Wire markings of insulated conductors in main and auxiliary circuits 8.6.1
– Phase conductor marking (black) Sections 1+2
– Marking of PE, N, PEN 8.6.4 + Table 4
– Compliance with clearances and creepage distances
– Up to a rated insulation voltage of AC 690 V, compliance with the following clearances is recommended (especially for busbars): 8.6.5
– bare, energized live parts to each other: 10 mm 8.6.6
– bare, energized live parts to bodies and constructional components: 15 mm 8.3

3.4 Terminals for external conductors 8.8

– The terminals shall be designed to the circuit's current load capacity and Short-circuit withstand strength.
– Terminals for external protective conductors
Table A.1,
Annex A
3.5 ASSEMBLY of doors, covers and of cladding
– Compliance with the protection against direct contact (e.g. IP2x or IPXXB) 8.4.2
– Observing the protective measure
– Protection class I (with protective conductor) 8.4.2.3
– Protection class II (double insulation) 8.4.4
– Compliance with the IP degree of protection 8.2.2
3.6 Labels / documentation
– Type plate 6.1
– Distribution board data 6.2.1
– Handling, installation, operating and maintenance instructions 6.2.2
– Equipment markings / wiring diagrams 6.3

Work book | 2CPC 000 313 B0101 117

Notes

118 2CPC 000 313 B0101 | Work book

Chapter 4
Routine verification

The ASSEMBLY manufacturer carries out routine verifications. They are intended to detect defects
in workmanship and or materials and are designed to guarantee proper functioning of ASSEMBLIES
prior to being introduced to the market

Criterion Requirement Testing Assessment Remark / Examiner

Routine verification protocol (routine check protocol) [o.k. / n.o.k. / n.c.]

4
Designation label Completed with all numer- Visual inspection
¨ ¨ ¨

¨ 
 
 
- Name of the manufacturer or als and values
Power Switchgear Combinations pursuant to IEC 61439-2 (PSC) trade mark
- Type designation or identifier

¨ 
 
 
Sub-distribution boards pursuant to IEC 61439-3 (DBO Type B) - Date of manufacture
- Applied standard
IEC 61439-2/-3
- Rated voltage (Un)
Company stamp - Rated current (InA)
Manufacturer of the ASSEMBLY: - Rated frequency (fn)
8. Dielectric properties IEC 61439-1, section 11.9
- Degree of protection
- Protection class Criterion Requirement Testing Assessment Remark / Examiner
[o.k. / n.o.k. / n.c.]
- CE marking
Insulation check (10.9.1 General / 10.9.2 Power-frequency withstand voltage)
(secure sample by barrier, only the examiner is allowed to the test area. test duration of not less than 1 s.)
Recorded to the documentation:
Rated insulation voltage Ui TestVisual
voltage ¨ ¨ ¨
Rated operational voltage inspection
(AC effective value) ¨ ¨ ¨
__________________ V
(Ue) of the outgoing circuits Visual inspection
¨ ¨ ¨
Phase conductor to enclosure / pursuant to Table 8 Measurement ¨ ¨ ¨
Rated impulse withstand voltage
constructive parts
6. Terminals for external
Visual inspection
conductors
_______________ V ¨ ¨
_________ V¨ IEC 61439-1, section 11.7
Customer: (Uimp) Conductor to conductor
Criterion
Measurement
Requirement ¨ ¨
Testing¨
Assessment Remark / Examiner
Rated insulation voltage (Ui) Visual inspection
¨ _________
¨ V¨
[o.k. / n.o.k. / n.c.]
Order number: Rated current (Inc) of
N to PE
Outgoing terminals
Visual inspection
¨
Measurement
¨ with¨manu-
Compliance
_________ V
¨ ¨ ¨
Visual inspection
¨ ¨ ¨
the outgoing circuits
(cross-section, clamping capacity) facturing documentation
Project: Rated Diversity Factor (RDF)
Auxiliary circuit to main circuits
Material
pursuant to Table 9
Visual inspection
_______________ V ¨
Compliance
Measurement
¨ with
_________ V¨manu-
¨ ¨
Visual inspection
¨
¨ ¨ ¨
Auxiliary circuit to(copper,
enclosure aluminium)
/ facturing documentation
Measurement ¨ ¨ ¨
Rated peak withstand currentconstructive
(Ipk) parts Visual inspection
¨ _________
¨ V¨
Type of contacting Compliance with manu- Visual inspection
¨ ¨ ¨
As alternative to(plug-in,
the insulation test for ASSEMBLIES withfacturing
screw-in) an incoming protective device rated up to 250 A:
documentation
Type: (Icw)
Insulation resistance verification (insulation
Rated short-time withstand current
Testing of the insulation
Conductor resistance
type
Visual measurement
inspection
¨
(>1000 Ω/V per circuit referred
device with not less than 500 V)
¨
to the supply
Compliance with
¨
voltage
manu- of the Visual
circuits to earth) ¨
inspection
¨ ¨
(flexible,
Testing of the insulation rigid)
resistance Compliance with facturing documentation
Visual ¨ ¨ ¨
Conditional rated short-time with-
(>1000 Ω/V per circuit referred to the 3.Visual inspection
Protection
manufacturing ¨ electric
against
documentation ¨ shock
inspection ¨ and continuity of the protective circuits IEC 61439-1, section 11.4
stand current (Icc) supply voltage of the circuits to earth)
Criterion Requirement Testing Assessment Remark / Examiner
Phase conductor 7. to enclosure / 1k Ω/V
Mechanical function (actuation* U _________V Measurement
elements, interlocks)¨ ¨ IEC 61439-1,
¨ section 11.8 [o.k. / n.o.k. / n.c.]
Included in the documentation e
constructive parts
= _________kΩ ________ kΩ
Criterion Requirement Testing Assessment ¨ Remark /¨Examiner
Verifications: Wiring diagram
Conductor to conductor
Protection against¨
Visual inspection
currents
hazardous ¨ body
Measurement
¨ • Protection
¨
disconnection
by
¨
automatic
¨¨
Plan = imple-
[o.k. / n.o.k. / n.c.]
mentation
¨
Assembly plan Visual inspection
¨ ________¨ kΩ¨ 1+2, 3 = n.c.
Serial Type of inspection Criterion IEC 61439-1 Result Examiner Design verification N to PE
Ventilation grid, assembled,
if necessary
Visual inspection Compliance with manu-
¨ Measurement
facturing¨ ¨• Protection
documentation ¨
Visual inspection
by double
¨ ¨
¨ ¨ ¨
1+3, 2 = n.c.
number V = visual inspection Section Assembly, operating instructions Visual inspection
¨
________ kΩ insulation
¨ ¨ ¨
Auxiliary circuit toActuation
main circuitselements 1. Verify basic protection Compliance with manu- Functional and
Measurement Complete
¨ covering of
¨ inspection
¨ ¨ inspection
Visual ¨ ¨
I = Inspection using CE - Declaration of conformity (breakers / resetting devicesVisual inspection
/ facturing¨
¨ documentation
¨ visual
all conductive parts by
________ kΩ
¨ ¨ ¨
Final testing interlocks / selector switches) double insulation
mech. or electr. test Auxiliary circuit to enclosure /
Interlocks / resi- Compliance
Measurement ¨ ¨ ¨
¨ with ¨manu-
Functional and
Cleanliness of the installationconstructive
Noparts
shavings, cable Visual inspection
¨ ________ kΩ Enclosures and covers Visual
¨ inspection ¨ ¨
¨ ¨ ¨
devices locks
dues, pollution facturing documentation
visual inspection
have completely and as a
Routine verification checklist (routine check protocol)
minimum IPXXB (>1.6 m
Documentation attached Visual
9. Wiring, operational performance and inspection
function ¨ IEC ¨above
61439-1, sectionthe11.10
base, minimum
1 S Degree of protection of cabinets / enclosures 11.2 Enclosure surface
Door couplings / switch
CriterionFree from scratches,
actuators
Requirement
Visual inspection
Compliance
¨
Testingwith manu-
IPXXD)
Assessment
Functional and
visual inspection
¨
Remark ¨
/ Examiner ¨
¨
facturing¨ ¨
documentation Company stamp
[o.k.and/or
If PCII / n.o.k.use
/ n.c.]
by Visual inspection
pollution, pockets Manufacturer of the ASSEMBLY: ¨ ¨ ¨
2 V/I Clearances and creepage distances 11.3 Cable colours and IEC 60446 Visual ordinary
¨ persons:¨ ¨
Installation suited for transport Fixed
marking main to
circuitstransport
Screw means,AC/DC:
connections /
Visualblack (brown, grey)
inspection
¨ inspection
According ¨ ¨Enclosures and
to data covers
Functional and
have completely and ¨ ¨ ¨
no loose
Cable colours and parts, labels IEC 60204 Visual ¨ as a
visual inspection
3 V/I Protection against electric shock and continuity 11.4
¨ ¨
device installation AC:
marking control circuits / fastening
red, DC: blue provided by original
inspection man-
minimum IP2XC
Exceptions: orange ufacturer
of the protective circuits Routine verification performed: Cable colours and marking PE- and
N-conductor
2. Fault
IEC 60446
Cabling / fastening(green/yellow
protection
/ type of for PE, blue
Visual
According
for inspection
Full integration
¨
to datacomponents ¨ of
Visual
all
¨
intoinspection
the
Visual inspection
¨ ¨
¨
¨
¨ ¨
installation N, PEN green/yellow with blue Customer:
provided by original man- circuit
protective
4 S Incorporation of equipment 11.5 Wiring /cables /
marking at the end)
No installation
ufacturer
to and signatureOrder
Visual number:
Complete marking of the Visual inspection
¨ ¨ ¨
Place / Date Name of the performer ¨ ¨ ¨
Door
cable and fastening type requirementssharp-edged corners and Compliance protective conductors
with manu-
inspection Functional andPE/
¨ ¨ ¨
Project:
5 V/I Internal electric circuits and connections 11.6 (door hinge l./r.) edges PEN
facturing documentation
visual inspection

Wiring and equipment arrangement Compliance with manufacturing Visual Continuous

¨ connection
¨ ¨ of Resistance ¨ ¨ ¨
with regard to interferences / EMC (check documentation inspection
6 S Terminals for external conductors 11.7 Place / Date for shielded cables,Closure system
grounding, etc.) Name and signature of the tester
Compliance
Type:
the protective circuit
with manu- Visual inspection
measurement
¨
< 0.1Ω ¨ ¨
(double
Complies with wiring bit,
diagram swivel Compliance
handle, …) facturing
with manufacturing documentation
Functional test ¨ ¨ ¨
Spot checks screw Torque check
7 V mech. Function (actuation elements, interlocks) 11.8 Circuitry / control Cabinet
/ interlocksand/or
(complete
documentation
enclosure type
Compliance Compliance
with manufacturing with
Functional manu-
connectionsVisual inspection
test ¨ ¨ ¨ ¨
Page 5
¨
¨
¨
¨ ¨

K-0320 Routine verification checklist

circuitry/ complete(wall,
• PDF 05/2015 2CPCfloor-standing,
• control 000
/ special modular
3. Fault protectionfacturing
320 L0201documentation documentation
Copyright © 2015 STRIEBEL & JOHN • All rights
No connection of the reserved
Visual inspection
¨ ¨ ¨
8 V Dielectric properties 11.9 consumer units)
circuitry requirements)
Individual switching devices (where
1. Degree ofcomponents
protectiontoofthe
Compliance with manufacturing Functional testprotective
enclosures (seals, sealing) IEC 61439-1, section 11.2
¨ circuit
¨ ¨
Screw
possible, e.g. circuit connectionsdocumentation
breaker/RCD) of the TorqueCriterion
requirements Functional and Requirement
¨ ¨ ¨ Testing Assessment Remark / Examiner
9 V Wiring, operating behaviour and function 11.10 Settings (e.g. motormechanical parts (plinths,
protection switch,
circuit breaker) surface-mounted wall
supply,
Compliance complied
with manufacturing with
Setting Graphic
¨
visual inspection
symbol
¨
attached
¨
Visual inspection
¨ ¨ ¨ [o.k. / n.o.k. / n.c.]
enclosures)
documentation
IP-enclosure IP _____ (from contract) see contract ¨ ¨ ¨
fixed
Test voltage value 4. Assembly of equipment
Mechanical impact strength of in- IK05
IEC 61439-1, section 11.5
Page 4see contract ¨ ¨ ¨
Criterion
Compliance with max. height / Compliance Requirement
with manu-
door installations Visual inspection
(use by ordinary Testing
¨ ¨ Assessment
¨ Remark / Examiner
The power-frequency withstand voltage is to be tested on all circuits for a duration of 1 s. V AC K-0320 Routine verification checklist • PDF 05/2015 • 2CPC 000 320 L0201
documentation Copyright © 2015 STRIEBEL & JOHN All rights
[o.k. reserved
/ n.o.k. / n.c.]
•
width / depth facturing
persons)
Equipment marking Texts comply with manu- According
Visual inspection
in accordance with 10.9.2. Test voltage = 1890 V AC at a rated insulation voltage between 300 V-690 V AC. Plinth dimensions
(e.g. 200 mm)
Compliance
(readability / assignment)
facturing
with manu-
Enclosures suited for outdoor
facturing
documentation
installations
Visual inspection
documentation
(UV-resistance,
¨ to
¨
water provided by original
data¨
¨ see contract
¨ ¨ ¨ ¨ ¨

For test values at other rated insulation voltages, see Table 8 of the IEC 61439-1. Colour
Use of equipment protection, dew
Compliance with manu-
condensation)
Complies with wiring
Visual inspection
manufacturer
Visual inspection
¨ ¨
¨
¨
¨ ¨
(auxiliary contacts, fuse links) diagram
(RAL) Mechanical
facturing impact strength of
documentation IK07 see contract ¨ ¨ ¨
Equipment arrangement outdoor installations (use
complies with by plan
assembly Visual inspection
¨ ¨ ¨
Cable inlet flanges Compliance with manu- Visual inspection
¨ ¨ ¨
Installation position of: ordinary
facturing
persons)
documentation
For ASSEMBLIES up to 250 A with an incoming protective device the insulation resistance may be Breaker actuators (directVerification
drive, of the measures
Complies with wiring Cable
Visual entries,
inspection flanges
¨ ¨
Visual
¨ ¨ ¨ ¨
rotary drive, motor) taken to achieve the/degree
diagram assemblyof plan fastened correctly and inspection
measured using an insulation measurement device at a voltage of not less than 500 V DC. This test protection
Measurement devices (in door, behind the door) Complies with assembly plan
closed
Visual inspection
¨ ¨ ¨
will be passed successfully when the insulation resistance is at least 1000 Ω/V. Control and signalling devices Complies with assembly plan Visual inspection
¨ ¨ ¨
2. Clearances and creepage distances IEC 61439-1, section 11.3
Criterion
5. Internal electrical circuits and connections Requirement
IEC 61439-1, section 11.6 Testing Assessment Remark / Examiner
Page 3/ n.c.]
[o.k. / n.o.k.
Criterion Requirement Testing Assessment Remark / Examiner
K-0320 Routine verification checklist • PDF 05/2015Clearance
• 2CPC 000 verification
320 L0201 Rated impulse withstand
Copyright[o.k.
© 2015 Visual
/ n.o.k. / n.c.]& JOHN • All rights
STRIEBEL ¨ reserved
¨ ¨
(see Table 1) voltage U and inspection1)
Electrical connections / devices According to data Spot checkimp
¨ ¨ ¨ then
and busbar system (spot checks provided by original visual inspection 1)
if n.o.k.,
Check performed by: of the cross-sections and torques) manufacturer
(spot check matrix)
=_____________V Testing for
rated peak
Minimum clearances in air withstand
current
=_____________ mm Uimp pursuant Page 2
to 10.9.3
K-0320 Routine verification checklist • PDF 05/2015 • 2CPC 000 320 L0201 Copyright © 2015 STRIEBEL & JOHN • All rights reserved
Verification of the creepage Rated insulation voltage Visual ¨ ¨ ¨
distances Ui inspection2)
Place / Date Name and signature of the performer (see Table 2) =_____________ V 2)
if
(Attention: Ui ≥ Ue) not obviously
Minimum creepage o.k., then
distance in verification
by physical
=_____________ mm measurement
Place / Date Name and signature of the tester (Attention: Minimum
creepage distance ≥ Mi-
nimum clearance in air)

K-0321 Routine verification protocol • PDF 05/2015 • 2CPC 000 321 L0201 Copyright © 2015 STRIEBEL & JOHN • All rights reserved Page 1

K-0320 Routine verification checklist • PDF 05/2015 • 2CPC 000 320 L0201 Copyright © 2015 STRIEBEL & JOHN • All rights reserved

Also the correct documents for the design verification should be available
(see Step 2: Distribution board design and design verification).

Work book | 2CPC 000 313 B0101 119

Notes

120 2CPC 000 313 B0101 | Work book

Chapter 5
CE conformity declaration

The low voltage directive (2006/95/EC) stipulates that every marketed product falling within the
scope of this directive has to bear the CE mark and that there has to be an associated declaration
of conformity. This EU Directive is implemented as the Product Safety Act in German law.

Declaration of conformity of the manufacturer ( Manufacturer's declaration)

Manufacturers may issue their own declarations of conformity, i.e. there is no need to involve another
entity. All this complies with the product liabilities provisions - manufacturers are liable for their
products and therefore it is justified to trust in a manufacturer’s declaration.
Prior to the delivery of a declaration of conformity the manufacturer has to undergo a conformity
assessment procedure as provided for in the low voltage directive (Annex IV). This includes the
preparation of the technical documentation including the design verifications, the test reports
allowing to assess whether the requirements arising from the directives are being complied with.
The manufacturer has to keep this technical documentation for a period of 10 years and to submit
5
it to the authorities on request.
This documentation reduces the risk that you as manufacturer will be held liable pursuant to the
Product Safety Act.

As manufacturer we assist you by our declaration of conformity (to the extent that we market
products falling within the scope of the low voltage directive and/or the Product Safety Act) and
by our form sheets:
- Routine verification protocol (see explanations under Step 4: Implementing routine verifications)
- Checklist on the conformity assessment procedure
- Declaration of conformity

In addition, you are free to use all shown tables as additional tools and may save them from our
download area.

Conformity assessment checklist Declaration of conformity

Company stamp Company stamp
Manufacturer of the ASSEMBLY:

Customer:
Order number:
Project:

Type:

Low-voltage switchgear and controlgear ASSEMBLIES We declare under our sole responsibility that the product

¨ Power Switchgear Combination (PSC) Design verification pursuant to IEC 61439-2 / VDE ¨ Sub-distribution board,

¨ Sub-distribution board (DBO) Design verification pursuant to IEC 61439-3 / VDE ¨ Power Switchgear Combination (PSC)

¨ 1. Technical documentation ¨ Sub-distribution board (DBO) for a use by ordinary people,
Designation, type, catalogue or order number:
Scope of the low-voltage directive 2006/95/EC

¨ Technical documentation of the original manufacturer of the low-voltage switchgear and controlgear ASSEMBLY to which this declaration refers, complies with the following standard(s).
(Important: Name and address of the original manufacturer as well as the type designation, applicable standard,
product description must be stated)
Low-voltage switchgear and controlgear ASSEMBLIES
¨ Assembly and installation instructions of the original manufacturer
¨ Wiring diagram, assembly drawing and parts list ¨ Power Switchgear Combination (PSC) Design verification pursuant to IEC 61439-2 / VDE

¨ Routine verification protocol ¨ Sub-distribution board (DBO) Design verification pursuant to IEC 61439-3 / VDE

The product named complies with the provisions of the following European directives:
Scope of the EMC directive 2004/108/EC
¨ Completion of the technical documentation by manufacturer‘s documentation for all electronic installation
equipment and devices, including electronic parts (assembly and installation instructions) ¨ Low-voltage directive 2006/95/EC

¨ Declaration of conformity by the device manufacturer certifying the compliance of the products with the provisions ¨ EMC directive 2004/108/EC (e.g. for electronic equipment installed
of the EMC directive. A note in the supporting documents is of similar importance and has to be kept. to ASSEMBLIES or distribution boards pursuant to IEC 61439-1/-2)

¨ 2. Preparing a declaration of conformity Date of affixing of the CE-marking1): __ __.__ __.__ __ __ __

1)
Visibly affixed to the ASSEMBLY or the distribution board together with the manufacturer ID,
if necessary only readable when the door is open.
¨
3. Affixing of the CE – marking
With this declaration of conformity the manufacturer certifies compliance with the specified directives and standards.
This declaration of conformity meets the provisions of IEC 45014 - General criteria for supplier's declaration of conformity.

Conformity assessment procedure carried out by: Conformity assessment procedure carried out by:

Place / Date Name and signature of the executor

Place / Date Name and signature of the executor

Place / Date Name and signature of the authorized person

K-0322 Conformity assessment checklist • PDF 05/2015 • 2CPC 000 322 L0201 Copyright © 2015 STRIEBEL & JOHN • All rights reserved K-0323 Declaration of conformity • PDF 05/2015 • 2CPC 323 045 L0201 Copyright © 2015 STRIEBEL & JOHN • All rights reserved

Work book | 2CPC 000 313 B0101 121

Notes

122 2CPC 000 313 B0101 | Work book

Symbols and abbreviations

Symbol / abbreviation Characteristic feature Section

CTI Comparative number of the creeping movement 3.6.17
ELV Extra-low voltage 3.7.11
EMC Electromagnetic Compatibility 3.8.13
ƒn Rated frequency, 3.8.12
Ic Short-circuit current 3.8.6
Icc Conditional short-circuit current 3.8.10.4
Icp Uninfluenced short-circuit current 3.8.7
Icw Rated short-time current 3.8.10.3
InA Rated current of an ASSEMBLY 5.3.1
Inc Rated current of a circuit 5.3.2
Ipk Rated peak withstand current 3.8.10.2
N Neutral conductor 3.7.5
PE Protective conductor 3.7.4
PEN PEN conductor 3.7.6
RDF Rated Diversity Factor 3.8.11
SCPD Short-circuit protective device 3.1.11
SPD Surge protective device 3.6.12
Ue Rated operational voltage 3.8.9.2
Ui Rated insulation voltage 3.8.9.3
Uimp Rated impulse withstand voltage 3.8.9.4
Un Rated voltage 3.8.9.1

Comparisons and effects in connection with different standards

Short-circuit currents in AC Low-voltage switchgear and Low voltage switching devices

systems controlgear ASSEMBLIES IEC 60947-2
IEC 73/162/CD IEC 61439-1

Ir In
InA / Inc
Rated current of anelectrical equipment Rated current

Icu
Icp Rated ultimate short-circuit breaking capacity
Ik Ics
Sustained short-circuit current Rated service short-circuit breaking capacity

Ip Icm
Ipk
Peak short-circuit current Rated short-circuit making capacity

Ith Icw
Icw
Thermally effective short-circuit current Rated short-time withstand current

Work book | 2CPC 000 305 L0101 123

Notes

124 2CPC 000 313 B0101 | Work book

Minimum requirements for the type plate
Example ABB

IEC 61439-2

Type code TW-series with plinth

Rated voltage 400 V

Current Type / Frequency AC / 50 HZ

Degree of protection IP55

Protection class I (earthed)

max. Fuse 400 A

Rated current 250 A

Projekt Example

DB Distribution board - DBO

Production date XX/20XX Order-No. 000 000 000

Minimum requirements:
a. Name of the Manufactor of the ASSEMBLY
b. IEC 61439-X
c. Type or code number
d. production date

Using part 3, the rated current of an ASSEMBLY is additionally specify!

Work book | 2CPC 000 313 B0101 125

Notes

126 2CPC 000 313 B0101 | Work book

Panel Design Configurator software

New use articles

Also such articles may be used at any time, which are not recorded in the default database. You may
use an article for a single project only or save it to the user database. Under 'Edit' select 'Insert new
article' or use the button 'New user article' from the product list bar.
2
PLE type
SpaceName Spaceunit Description
PLE-DIN SU SU for DIN rail devices
PLE-K SU SU for terminals on DIN rails
PLE-M SU SU for devices on mounting plates
PLE-U SU SU
PLE-A SU SU for wiring space for devices
PLE-B60 mm SU for mounting fuse socket
PLE-L100 mm SU for fuse switch disconnectors with a CU busbar spacing of 100 mm
PLE-L185 mm SU for fuse switch disconnectors with a CU busbar spacing of 185 mm
PLE-NH00 Unit SU for size 00 separator
PLE-NH1 Unit SU for size 01 separator
PLE-NH2 Unit SU for size 02 separator
PLE-NH3 Unit SU for size 03 separator
Z Unit SU for meters
TSG Unit SU for TSG
RE Unit SU grid unit for modules in the enclosure
PLE-C SU SU for covers
PLE-SS SU SU for CU busbars
PLE-NH00 Unit SU for size 00 separator on CU busbars
PLE-NH1-SS Unit SU for size 01 separator on CU busbars
PLE-DIN-S SU SU for DIN rail devices for SmissLine
T4 Unit SU for Tmax T4
PLE-Tx mm SU
PLE-T45x mm SU
eHZ Unit SU for EDS
PLE-XTx mm SU
XT4 Unit SU for Tmax XT4 load switches/MCCB
PLE-L50 mm SU for fuse switch disconnectors with a CU busbar spacing of 50 mm
T1 Unit SU for Tmax T1 load switches/MCCB
T2 Unit SU for Tmax T2 load switches/MCCB
T3 Unit SU for Tmax T3 load switches/MCCB
T5 Unit SU for Tmax T5 load switches/MCCB
T6 Unit SU for Tmax T6 load switches/MCCB
T7 Unit SU for Tmax T7 load switches/MCCB
PLE-T SU SU
PLE-S700 SU SU for S700 selective main circuit breakers
XT2 Unit SU for Tmax XT2 load switches/MCCB

Work book | 2CPC 000 313 B0101 127

Notes

128 2CPC 000 313 B0101 | Work book

Panel Design Configurator software

Export/import of user article data

It is possible to export or import user data.
To do so, you should not be working at a project.
2

Select 'Tools' then 'Data import or export' to import or export the user data.

Work book | 2CPC 000 313 B0101 129

Notes

130 2CPC 000 313 B0101 | Work book

Temperature rise verification up to 630 A
Solution example

Rated Pvn Derat- Rated current assumed assumed Power loss of Sum of the
current of the ing 1) of a circuit Inc load factor 2) operating a device at IB power losses
equipment In current IB
Manufacturer

(A) (W) (A) (A) (W) (W)

2
Description

IB = Inc · PB = Pvn · PvB = PB

Number

assumed load
Type

(IB/In)2 number
Pos

factor

1 1 ABB T5 Tmax 400 A 31,8 W 1 400 A 0,8 320 A 20,35 W 20,35 W

2 6 ABB NH XLP00 160 A 42,6 W 0,6 96 A 0,8 76,8 A 9,82 W 58,89 W

F204A-
3 40 ABB FI 40A 8,4 W 0,6 24 A 0,8 19,2 A 1,94 W 46,45 W
40/0,03

4 144 ABB S201-B16 16 A 2,5 W 0,6 9,6 A 0,8 7,68 A 0,58 W 82,94 W

Sum of the installed power losses ∑Pv 208,63

Wiring power loss (30 %) 3) 30 62,59

Work book | 2CPC 000 313 B0101 131

Notes

132 2CPC 000 313 B0101 | Work book

Data collection tables

Characteristics Information provided by the planner / customer Information provided by the manufacturer
Nominal voltage of the incoming
AC _______ V _____ Hz Ue = ____________ V
supply
DC _______ V fn = ____________ Hz
System __________ TN-C __________ Protection by automatic disconnection
__________ TN-C-S of the power supply (PC I)
__________ TN-S
__________ TT __________ protection by protective insulation (PC II)
__________ IT
Rated current Supply current (nominal current transformer / upstream
InA = ___________ A
protective device)
Short-circuit withstand strength
Icp = _______ kA Ipk = ___________ kA
(please see notes on pages 9 - -12)
(uninfluenced short-circuit current at the supply terminals) Icw = ___________ kA
Icc = ___________ kA
Overvoltage Overvoltage category Rated impulse withstand voltage
__________ III Uimp = ___________ kV
__________ IV
Incoming line connection
__________ from below __________ single-core cable
__________ from above __________ multi-core cable
__________ copper conductor __________ number
__________ aluminium conductor __________ mm² section
__________ connection using terminal blocks __________ copper conductor
__________ aluminium conductor
__________ connection to equipment
__________ connection using terminal blocks

Consumer / Information provided by the planner / customer Data to be derived from step 2 by
circuit types manufacturer
Number of Type of protective device Distribution board ratings Circuit ratings Type of protective device
circuits
Distribution circuits for
___ fuse
downstream subdistri-
bution boards ___ MCB
___ MCCB
Final circuits
Number of Type of the protective conductor Consumer ratings Circuit ratings Type of protective device
connection
circuits
Socket
____ fuse _______ A Inc = _____ A
___ MCB
____ Circuit breaker and residual current device
Ohmic load, heater
____ fuse _______ kW Inc = _____ A
___ MCB
____ MCCB

Inductive consumer,
___ fuse _______ kW Inc = _____ A
motor, direct
___ MCB _______ cos 
___ MCCB
Inductive consumer,
____ fuse _______ kW Inc = _____ A
motor, controlled
___ MCB _______ cos 
____ manufacturer's description
Capacitive consumers
____ fuse _______ kW Inc = _____ A
___ MCB _______ cos 
____ manufacturer's description

Work book | 2CPC 000 305 L0101 133

Notes

134 2CPC 000 313 B0101 | Work book

Data collection tables

Conditions of use Information provided by the Measures/recommendations of the ASSEMBLY manufacturer Selection
planner / customer
Definition pursuant to standard IEC This information is to be taken into account in designing
61439-1 ASSEMBLIES
Indoor installation Atmospheric conditions Comply with more severe requirements arising from the
not less than IP2X
Foreign bodies / dust product standard

Foreign bodies Diameter ≥ 12.5 mm IP2X

Foreign bodies Diameter ≥ 2.5 mm IP3X

Dust
dust-protected IP5X
Increased presence of dust

Dust conductive dusttight IP6X

Humidity / water

Dripping water IPX1

Occasional cleaning around the IPX4

distribution board, impact by
diverted water

Functional cleaning around the IPX5

distribution board, impact by
diverted water

Temporary immersion IPX7

Room air conditioned / tempera- -5 to +35 °C Indicate the power loss of the ASSEMBLY for the
ture range dimensioning of the air-conditioning
Room ventilated / temperature -5 to +35 °C Indicate the power loss of the ASSEMBLY in order for venti-
range, relative humidity 90 % at 20 °C, lation dimensioning; and state the room size. Higher ambient
air temperatures are to be taken into account in the planning
up to 50 % at 40 °C of ASSEMBLIES

Outdoor installation Protected installation / -25 to +35 °C Possible measures against moderate condensation due to
temperature range, relative 90 % at 20 °C, up to 50 % at 40 °C, temperature variations: Ventilating, heating, air conditioning
humidity (against rain, sunshine short term up to 100 % at 25 °C
and wind)

Foreign bodies / dust not less than IP2X For increased dust production use a higher degree of
protection such as IP5X

Humidity / water not less than IPX1 The manufacturer states the suitability of the protected
installation, if necessary by applying additional measures

Unprotected installation / -25 to +35 °C Higher ambient air temperatures which might result from
temperature range rel. humidity 90 % at 20 °C, up to 50 % at 40 °C, direct sunlight are to be taken into account in the planning of
short term up to 100 % at 25 °C ASSEMBLIES Possible measures against moderate conden-
sation due to temperature variations: Ventilating, heating, air
conditioning
Direct sunlight UV resistance Follow manufacturer's instructions

Foreign bodies / dust not less than IP2X For increased dust production use a higher degree of
protection such as IP5X

Humidity / water not less than IPX1 The manufacturer states the suitability of the protected
installation, if necessary by applying additional measures

Work book | 2CPC 000 305 L0101 135

Notes

136 2CPC 000 313 B0101 | Work book

Data collection tables

Conditions of use Information provided by the Measures/recommendations of the ASSEMBLY manufacturer Selection
planner / customer
Definition pursuant to standard This information is to be taken into account in the
IEC 61439-1 planning of ASSEMBLIES
Dimensions for trans- Type of installation: None
_________
port and installation To the wall (recess), to the wall,
free installation to base frame, _________
double floor _________
Aisle widths / escape routes: See IEC 60364-7-729 Minimum aisle widths and the direction of the
Room dimensions and access Requirements for special installations escape routes are to be taken into account in the
doors or locations – operating or maintenance planning of ASSEMBLIES
gangways
Distribution board: None Possible restrictions are to be stated
W ______
max. dimensions: W x H x D
max. weight H ______
D ______
kg ______ 5
Transport: max. transport dimen- None Possible restrictions are to be stated, such as only
W ______
sions W x H x D, max. transport standing transport, max. acceleration values
weight H ______
Transport type, e.g. crane D ______
Accessibility at the construction
kg ______
site
Chemical influences None Type of the enclosure material
Chemical device version
Special installation / ventilation
Mechanical impact Sub-distribution board IK05
Indoor installation IK07
Outdoor installation

Enclosure material Sheet steel None

Plastic

Enclosure colour Comply with customer specifications / call for

tender documents

EMC Environment A Confirmation by the manufacturer in accordance

Non-public or industrial with environment A
LV networks / areas / installations
including strong sources of
interference
Environment B Confirmation by the manufacturer in accordance
Public LV networks such as with environment B
domestic, commercial and light
industrial locations

Characteristics Information provided by the planner / customer Information provided by Selection

the manufacturer
Operation through: Skilled person (electrically) IPXXB
Instructed person IPXXB
Ordinary persons
IPXXC
Device activation Behind the door / cover
From outside

Access / door closure Lock

For semi-cylinder (central locking system)
Other

Work book | 2CPC 000 313 B0101 137

Notes

138 2CPC 000 313 B0101 | Work book

Verification of temperature rise up to 630 A

Rated Pvn Derating 1) Rated current Assumed Assumed Power loss of Sum of the
current of the of a circuit Inc load factor 2) operating a device at IB power losses
equipment In current IB
Manufacturer

(A) (W) (A) (A) (W) (W)

Description

IB = Inc · PB = Pvn · (IB/In)2 PvB = PB ·

Number

assumed load
Type

number
Pos

factor

Sum of the installed power losses

Wiring power loss (%) 3) 30

Power loss dissipation of the enclosure

Difference = power loss dissipation – sum of the installed power loss= Pvzul – ∑PvB

1) According to IEC 61439-2 Table 101 – Values of assumed loading – depending on the number of equipment used in the same time
2) Manufacturer information for equipment under different conditions, but not less than 0.8 in line with section 10.10.4.2.1c
3) The wiring power loss is assumed as percentage of the equipment power losses – proposal: 30 %

Work book | 2CPC 000 305 L0101 139

Notes

140 2CPC 000 313 B0101 | Work book

Design verification part I

Design verification part I

Company stamp
Manufacturer of the ASSEMBLY

Customer:
Order number:
Project:

Type:

Low-voltage switchgear and controlgear ASSEMBLIES

¨ 
  
Power Switchgear Combination (PSC) Design verification pursuant to IEC 61439-2 / VDE

 
  
¨ Sub-distribution board (DBO) Design verification pursuant to IEC 61439-3 / VDE

ASSEMBLY rating data:

(Required data from step 1: Collecting the requisite data)

Rated voltage: _________ V Short-circuit withstand strength

Rated frequency: _________ Hz Icc: ___________ kA

Network system: ¨TN ¨TT ¨IT Icw: ___________ kA

Rated current of the ASSEMBLY InA: ___________ A Ipk: ___________ kA

Rated impulse withstand voltage (Uimp): ___________ kV

(enter only applicable values)

Verified for (see Annex – Part II):

Design verification performed:

Place / Date Name and signature of the performer

Place / Date Name and signature of the tester

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142 2CPC 000 313 B0101 | Work book

Design verification part II

Design verification part II

Only valid in connection with: Design verification part I

For low-voltage switchgear and controlgear ASSEMBLIES consisting of several parts and for separate observations to verify
the following characteristics: When 10.11 Short circuit withstand strength, 10.12 Electromagnetic Compatibility (EMC) have
been carried out, please enter the marking of the part of the low-voltage switchgear and controlgear ASSEMBLY here:

Sec. Characteristics to be verified Verification by Remarks / annexes

10.2.2 Resistance to corrosion ABB
10.2.3.2 Strength against abnormal heat and fire ABB
10.2.4 Resistance to UV radiation ABB
10.2.5 Lifting ABB
10.2.6 Mechanical impact ABB
10.2.7 Marking ABB
10.3 Degree of protection of enclosures ABB
10.4 Clearances and creepage distances ABB
10.5.2 Continuity of the connection between ABB
parts of the ASSEMBLY and the
protective circuit
10.5.3 Short-circuit withstand strength of the ABB
protective circuit
10.6 Incorporation of equipment Manufacturer The ASSEMBLY manufacturer shall
comply with the design requirements
of the original manufacturer and of the
equipment manufacturer (8.6)
10.7 Internal electric circuits and connections Manufacturer The ASSEMBLY manufacturer shall
comply with the design requirements of
the original manufacturer (8.7)
10.8 Terminals for external conductors Manufacturer Compliance with the requirements of
the original manufacturer and of the
device manufacturer (8.8)
10.9.2 Insulation characteristics ABB
Power-frequency withstand voltage
10.9.3 Insulation characteristics ABB
Withstand voltage
10.10 Verification of temperature rises Manufacturer Annexes:
10.11 Short-circuit withstand strength Manufacturer Annexes:
10.12 Electro-magnetic compatibility (EMC) Manufacturer In general no verification necessary
Annexes:
10.13 Mechanical operation ABB

Annexes:

Design verification performed:

Place / Date Name and signature of the performer

Place / Date Name and signature of the tester

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Notes

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Unit test protocol

Routine verification protocol (routine check protocol)

¨ 
  
Power Switchgear Combinations pursuant to IEC 61439-2 (PSC)

 
  
¨ Sub-distribution boards pursuant to IEC 61439-3 (DBO Type B)
Company stamp
Manufacturer of the ASSEMBLY:

Customer:
Order number:
Project:

Type:

Verifications:
Serial Type of inspection Criterion IEC 61439-1 Result Examiner
number V = visual inspection Section
I = Inspection using
mech. or electr. test
devices
1 S Degree of protection of cabinets / enclosures 11.2
2 V/I Clearances and creepage distances 11.3
3 V/I Protection against electric shock and continuity 11.4
of the protective circuits
4 S Incorporation of equipment 11.5
5 V/I Internal electric circuits and connections 11.6
6 S Terminals for external conductors 11.7
7 V mech. Function (actuation elements, interlocks) 11.8
8 V Dielectric properties 11.9
9 V Wiring, operating behaviour and function 11.10
Test voltage value
The power-frequency withstand voltage is to be tested on all circuits for a duration of 1 s. V AC
in accordance with 10.9.2. Test voltage = 1890 V AC at a rated insulation voltage between 300 V-690 V AC.
For test values at other rated insulation voltages, see Table 8 of the IEC 61439-1.

For ASSEMBLIES up to 250 A with an incoming protective device the insulation resistance may be
measured using an insulation measurement device at a voltage of not less than 500 V DC. This test
will be passed successfully when the insulation resistance is at least 1000 Ω/V.

Check performed by:

Place / Date Name and signature of the performer

Place / Date Name and signature of the tester

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Notes

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Unit test protocol checklist

Routine verification checklist (routine check protocol)

Company stamp
Manufacturer of the ASSEMBLY:

Customer:
Order number:
Project:

Type:

1. Degree of protection of enclosures (seals, sealing) IEC 61439-1, section 11.2

Criterion Requirement Testing Assessment Remark / Examiner
[o.k. / n.o.k. / n.c.]
IP-enclosure IP _____ (from contract) see contract ¨ ¨ ¨
Mechanical impact strength of in- IK05 see contract ¨ ¨ ¨
door installations (use by ordinary
persons)
Enclosures suited for outdoor According to data see contract ¨ ¨ ¨
installations (UV-resistance, water provided by original
protection, dew condensation) manufacturer
Mechanical impact strength of IK07 see contract ¨ ¨ ¨
outdoor installations (use by
ordinary persons)
Verification of the measures Cable entries, flanges Visual ¨ ¨ ¨
taken to achieve the degree of fastened correctly and inspection
protection closed

2. Clearances and creepage distances IEC 61439-1, section 11.3

Criterion Requirement Testing Assessment Remark / Examiner
[o.k. / n.o.k. / n.c.]
Clearance verification Rated impulse withstand Visual ¨ ¨ ¨
(see Table 1) voltage Uimp inspection1)
1)
if n.o.k., then
=_____________V Testing for
rated peak
Minimum clearances in air withstand
current
=_____________ mm Uimp pursuant
to 10.9.3
Verification of the creepage Rated insulation voltage Visual ¨ ¨ ¨
distances Ui inspection2)
(see Table 2) =_____________ V 2)
if
(Attention: Ui ≥ Ue) not obviously
Minimum creepage o.k., then
distance in verification
by physical
=_____________ mm measurement
(Attention: Minimum
creepage distance ≥ Mi-
nimum clearance in air)

Page 1

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Unit test protocol checklist

3. Protection against electric shock and continuity of the protective circuits IEC 61439-1, section 11.4
Criterion Requirement Testing Assessment Remark / Examiner
[o.k. / n.o.k. / n.c.]
Protection against hazardous body • Protection by automatic Plan = imple- ¨ ¨ ¨
currents disconnection ¨ mentation
1+2, 3 = n.c.
• Protection by double
1+3, 2 = n.c.
insulation ¨
1. Verify basic protection Complete covering of Visual inspection
¨ ¨ ¨
all conductive parts by
double insulation
Enclosures and covers Visual inspection
¨ ¨ ¨
have completely and as a
minimum IPXXB (>1.6 m
above the base, minimum
IPXXD)
If PCII and/or use by Visual inspection
¨ ¨ ¨
ordinary persons:
Enclosures and covers
have completely and as a
minimum IP2XC
2. Fault protection Full integration of all Visual inspection
¨ ¨ ¨
components into the
protective circuit
Complete marking of the Visual inspection
¨ ¨ ¨
protective conductors PE/
PEN
Continuous connection of Resistance ¨ ¨ ¨
the protective circuit measurement
< 0.1Ω
Spot checks screw Torque check
¨ ¨ ¨
connections
3. Fault protection No connection of the Visual inspection
¨ ¨ ¨
components to the
protective circuit
Graphic symbol attached Visual inspection
¨ ¨ ¨

4. Assembly of equipment IEC 61439-1, section 11.5

Criterion Requirement Testing Assessment Remark / Examiner
[o.k. / n.o.k. / n.c.]
Equipment marking Texts comply with manu- Visual inspection
¨ ¨ ¨
(readability / assignment) facturing documentation
Use of equipment Complies with wiring Visual inspection
¨ ¨ ¨
(auxiliary contacts, fuse links) diagram
Equipment arrangement complies with assembly plan Visual inspection
¨ ¨ ¨
Installation position of:
Breaker actuators (direct drive, Complies with wiring Visual inspection
¨ ¨ ¨
rotary drive, motor) diagram / assembly plan
Measurement devices (in door, behind the door) Complies with assembly plan Visual inspection
¨ ¨ ¨
Control and signalling devices Complies with assembly plan Visual inspection
¨ ¨ ¨

5. Internal electrical circuits and connections IEC 61439-1, section 11.6

Criterion Requirement Testing Assessment Remark / Examiner
[o.k. / n.o.k. / n.c.]
Electrical connections / devices According to data Spot check and
¨ ¨ ¨
visual inspection
and busbar system (spot checks provided by original
of the cross-sections and torques) manufacturer
(spot check matrix)

Page 2

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• Copyright © 2015 STRIEBEL & JOHN All rights reserved
•

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Unit test protocol checklist

6. Terminals for external conductors IEC 61439-1, section 11.7

Criterion Requirement Testing Assessment Remark / Examiner
[o.k. / n.o.k. / n.c.]
Outgoing terminals Compliance with manu- Visual inspection
¨ ¨ ¨
(cross-section, clamping capacity) facturing documentation
Material Compliance with manu- Visual inspection
¨ ¨ ¨
(copper, aluminium) facturing documentation
Type of contacting Compliance with manu- Visual inspection
¨ ¨ ¨
(plug-in, screw-in) facturing documentation
Conductor type Compliance with manu- Visual inspection
¨ ¨ ¨
(flexible, rigid) facturing documentation

7. Mechanical function (actuation elements, interlocks) IEC 61439-1, section 11.8

Criterion Requirement Testing Assessment Remark / Examiner
[o.k. / n.o.k. / n.c.]
Ventilation grid, assembled, Compliance with manu- Visual inspection
¨ ¨ ¨
if necessary facturing documentation
Actuation elements Compliance with manu- Functional and
¨ ¨ ¨
visual inspection
(breakers / resetting devices / facturing documentation
interlocks / selector switches)
Interlocks / Compliance with manu- Functional and
¨ ¨ ¨
visual inspection
locks facturing documentation

Door couplings / switch actuators Compliance with manu- Functional and

¨ ¨ ¨
visual inspection
facturing documentation

Screw connections / According to data Functional and

¨ ¨ ¨
visual inspection
device installation / fastening provided by original man-
ufacturer
Cabling / fastening / type of According to data Visual inspection
¨ ¨ ¨
installation provided by original man-
ufacturer
Door requirements Compliance with manu- Functional and
¨ ¨ ¨
visual inspection
(door hinge l./r.) facturing documentation

Closure system Compliance with manu- Visual inspection

¨ ¨ ¨
(double bit, swivel handle, …) facturing documentation
Cabinet and/or enclosure type Compliance with manu- Visual inspection
¨ ¨ ¨
(wall, floor-standing, modular facturing documentation
consumer units)
Screw connections of the Torque requirements Functional and
¨ ¨ ¨
visual inspection
mechanical parts (plinths, supply, complied with
surface-mounted wall enclosures)
fixed

Compliance with max. height / Compliance with manu- Visual inspection

¨ ¨ ¨
width / depth facturing documentation
Plinth dimensions Compliance with manu- Visual inspection
¨ ¨ ¨
(e.g. 200 mm) facturing documentation
Colour Compliance with manu- Visual inspection
¨ ¨ ¨
(RAL) facturing documentation
Cable inlet flanges Compliance with manu- Visual inspection
¨ ¨ ¨
facturing documentation

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Unit test protocol checklist

8. Dielectric properties IEC 61439-1, section 11.9

Criterion Requirement Testing Assessment Remark / Examiner
[o.k. / n.o.k. / n.c.]
Insulation check (10.9.1 General / 10.9.2 Power-frequency withstand voltage)
(secure sample by barrier, only the examiner is allowed to the test area. test duration of not less than 1 s.)
Rated insulation voltage Ui Test voltage ¨ ¨ ¨
(AC effective value)
__________________ V
Phase conductor to enclosure / pursuant to Table 8 Measurement ¨ ¨ ¨
constructive parts _________ V
_______________ V
Conductor to conductor Measurement ¨ ¨ ¨
_________ V
N to PE Measurement ¨ ¨ ¨
_________ V
Auxiliary circuit to main circuits pursuant to Table 9 Measurement ¨ ¨ ¨
_______________ V _________ V
Auxiliary circuit to enclosure / Measurement ¨ ¨ ¨
constructive parts _________ V
As alternative to the insulation test for ASSEMBLIES with an incoming protective device rated up to 250 A:
Insulation resistance verification (insulation measurement device with not less than 500 V)
Testing of the insulation resistance (>1000 Ω/V per circuit referred to the supply voltage of the circuits to earth)
Testing of the insulation resistance Compliance with Visual ¨ ¨ ¨
(>1000 Ω/V per circuit referred to the manufacturing documentation inspection
supply voltage of the circuits to earth)
Phase conductor to enclosure / 1k Ω/V * Ue _________V Measurement ¨ ¨ ¨
constructive parts
= _________kΩ ________ kΩ
Conductor to conductor Measurement ¨ ¨ ¨
________ kΩ
N to PE Measurement ¨ ¨ ¨
________ kΩ
Auxiliary circuit to main circuits Measurement ¨ ¨ ¨
________ kΩ
Auxiliary circuit to enclosure / Measurement ¨ ¨ ¨
constructive parts
________ kΩ

9. Wiring, operational performance and function IEC 61439-1, section 11.10

Criterion Requirement Testing Assessment Remark / Examiner
[o.k. / n.o.k. / n.c.]
Cable colours and IEC 60446 Visual ¨ ¨ ¨
marking main circuits AC/DC: black (brown, grey) inspection
Cable colours and IEC 60204 Visual ¨ ¨ ¨
marking control circuits AC: red, DC: blue inspection
Exceptions: orange
Cable colours and marking PE- and IEC 60446 Visual ¨ ¨ ¨
N-conductor (green/yellow for PE, blue for inspection
N, PEN green/yellow with blue
marking at the end)
Wiring /cables / No installation to Visual ¨ ¨ ¨
cable and fastening type sharp-edged corners and inspection
edges
Wiring and equipment arrangement Compliance with manufacturing Visual ¨ ¨ ¨
with regard to interferences / EMC (check documentation inspection
for shielded cables, grounding, etc.)
Complies with wiring diagram Compliance with manufacturing Functional test ¨ ¨ ¨
documentation
Circuitry / control / interlocks (complete Compliance with manufacturing Functional test ¨ ¨ ¨
circuitry/ complete control / special documentation
circuitry requirements)
Individual switching devices (where Compliance with manufacturing Functional test ¨ ¨ ¨
possible, e.g. circuit breaker/RCD) documentation
Settings (e.g. motor protection switch, Compliance with manufacturing Setting ¨ ¨ ¨
circuit breaker) documentation

Page 4

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Unit test protocol checklist

Criterion Requirement Testing Assessment Remark / Examiner

[o.k. / n.o.k. / n.c.]
Designation label Completed with all numer- Visual inspection
¨ ¨ ¨
- Name of the manufacturer or als and values
trade mark
- Type designation or identifier

- Date of manufacture
- Applied standard
IEC 61439-2/-3
- Rated voltage (Un)
- Rated current (InA)
- Rated frequency (fn)
- Degree of protection
- Protection class
- CE marking

Recorded to the documentation:

Rated operational voltage Visual inspection
¨ ¨ ¨
(Ue) of the outgoing circuits Visual inspection
¨ ¨ ¨
Rated impulse withstand voltage Visual inspection
¨ ¨ ¨
(Uimp)
Rated insulation voltage (Ui) Visual inspection
¨ ¨ ¨
Rated current (Inc) of Visual inspection
¨ ¨ ¨
the outgoing circuits
Rated Diversity Factor (RDF) Visual inspection
¨ ¨ ¨

Rated peak withstand current (Ipk) Visual inspection

¨ ¨ ¨

Rated short-time withstand current Visual inspection

¨ ¨ ¨
(Icw)
Conditional rated short-time with- Visual inspection
¨ ¨ ¨
stand current (Icc)
Included in the documentation
Wiring diagram Visual inspection
¨ ¨ ¨
Assembly plan Visual inspection
¨ ¨ ¨
Design verification Visual inspection
¨ ¨ ¨
Assembly, operating instructions Visual inspection
¨ ¨ ¨
CE - Declaration of conformity Visual inspection
¨ ¨ ¨
Final testing
Cleanliness of the installation No shavings, cable resi- Visual inspection
¨ ¨ ¨
dues, pollution
Documentation attached Visual inspection
¨ ¨ ¨
Enclosure surface Free from scratches, Visual inspection
¨ ¨ ¨
pollution, pockets
Installation suited for transport Fixed to transport means, Visual inspection
¨ ¨ ¨
no loose parts, labels

Routine verification performed:

Place / Date Name and signature of the performer

Place / Date Name and signature of the tester

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Unit test protocol checklist

Table 1 – Minimum clearances in air a IEC 61439-1, section 8.3.2

Rated impulse withstand voltage Minimum clearance in air
Uimp
kV mm
≤ 2.5 1.5
4.0 3.0
6.0 5.5
8.0 8.0
12.0 14.0
a
Based on inhomogenous field and pollution degree 3.

Table 2 – Minimum clearances in air IEC 61439-1, section 8.3.3

Rated Minimum clearance in air in mm
insulation
voltage Ui Degree of pollution
1 2 3
Material group c Material group c Material group c
All material
Vb I II IIIa and IIIb I II IIIa IIIb
groups
32 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5
40 1.5 1.5 1.5 1.5 1.5 1.6 1.8 1.8
50 1.5 1.5 1.5 1.5 1.5 1.7 1.9 1.9
63 1.5 1.5 1.5 1.5 1.6 1.8 2 2
80 1.5 1.5 1.5 1.5 1.7 1.9 2.1 2.1
100 1.5 1.5 1.5 1.5 1.8 2 2.2 2.2
125 1.5 1.5 1.5 1.5 1.9 2.1 2.4 2.4
160 1.5 1.5 1.5 1.6 2 2.2 2.5 2.5
200 1.5 1.5 1.5 2 2.5 2.8 3.2 3.2
250 1.5 1.5 1.8 2.5 3.2 3.6 4 4
320 1.5 1.6 2.2 3.2 4 4.5 5 5
400 1.5 2 2.8 4 5 5.6 6.3 6.3
500 1.5 2.5 3.6 5 6.3 7.1 8 8
630 1.8 3.2 4.5 6.3 8 9 10 10
800 2.4 4 5.6 8 10 11 12.5
1000 3.2 5 7.1 10 12.5 14 16
a
1250 4.2 6.3 9 12.5 16 18 20
1600 5.6 8 11 16 20 22 25
NOTE 1 The CTI values refer to the values obtained in accordance with IEC 60112:2003, method A, for the insulation material.
NOTE 2 Values taken from IEC 60664-1, but maintaining a minimum value of 1.5 mm.
a
Insulation of material group IIIb is not recommended for use in pollution degree 3 above 630 V.
b
As an exception, for rated insulation voltages 127, 208, 415, 440, 660/690 and 830 V, creepage distances corresponding to the lower values 125, 200, 400, 630
and 800 V may be used.
c
The following material groups are classified according to the range of values of the comparative tracking index (CTI) (see 3.6.16)
- Material group I 600 ≤ CTI
- Material group II 400 ≤ CTI ≤ 600
- Material group IIIa 175 ≤ CTI ≤ 400
- Material group IIIb 100 ≤ CTI ≤ 175

Text excerpt, see IEC 61439-1

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Unit test protocol checklist

Table 8 – Power-frequency withstand voltage for main circuits IEC 61439-1, section 10.9.2
Rated insulation voltage Ui Test voltage Test voltage b
(conductor to conductor, AC or DC) (AC effective value) (DC)

P P P
Ui ≤ 60 1000 1415
60 < Ui ≤ 300 1500 2120
300 < Ui ≤ 690 1890 2670
690 < Ui ≤ 800 2000 2830
800 < Ui ≤ 1000 2000 3110
1000 < Ui ≤ 1500a 3820
a
for DC only
b
Test voltages based on 6.1.3.4.1, fifth paragraph of IEC 60664-1.

Table 9 – Power-frequency withstand voltage for auxiliary and control circuits IEC 61439-1, section 10.9.2
Rated insulation voltage Ui Test voltage
(Conductor to conductor) (AC effective value)
P P
Ui ≤ 12 250
12 < Ui ≤ 60 500
60 < Ui see Table 8

Spot checks – Matrix for electrical screw connections

Test level III

All tested screw connections are to marked using an indelible marker!

Use only calibrated test tools!

Screw connections: Terminals, terminal blocks and snap-in devices

Number of screw connections/panel Sample size Assumption numeral a
2 to 8 2 0
9 to 15 5 0
16 to 25 8 0
26 to 50 13 0
51 to 90 20 0
91 to 150 32 0
151 to 280 50 0
501 to 1200 80 0

a
assumption numeral 0 means:

No erroneous screw connections are accepted for spot checks ➜ immediate reworking / 100% check!

Text excerpt, see IEC 61439-1

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Conformity assessment checklist

Conformity assessment checklist

Company stamp
Manufacturer of the ASSEMBLY:

Customer:
Order number:
Project:

Type:

Low-voltage switchgear and controlgear ASSEMBLIES

¨
Power Switchgear Combination (PSC) Design verification pursuant to IEC 61439-2 / VDE

¨
Sub-distribution board (DBO) Design verification pursuant to IEC 61439-3 / VDE

¨
1. Technical documentation

Scope of the low-voltage directive 2006/95/EC

¨ Technical documentation of the original manufacturer of the low-voltage switchgear and controlgear ASSEMBLY
(Important: Name and address of the original manufacturer as well as the type designation, applicable standard,
product description must be stated)

¨ Assembly and installation instructions of the original manufacturer

¨ Wiring diagram, assembly drawing and parts list
¨ Routine verification protocol
Scope of the EMC directive 2004/108/EC
¨ Completion of the technical documentation by manufacturer‘s documentation for all electronic installation
equipment and devices, including electronic parts (assembly and installation instructions)

¨ Declaration of conformity by the device manufacturer certifying the compliance of the products with the provisions
of the EMC directive. A note in the supporting documents is of similar importance and has to be kept.

¨
2. Preparing a declaration of conformity

¨
3. Affixing of the CE – marking

Conformity assessment procedure carried out by:

Place / Date Name and signature of the executor

K-0322 Conformity assessment checklist • PDF 05/2015 • 2CPC 000 322 L0201 Copyright © 2015 STRIEBEL & JOHN • All rights reserved

Work book | 2CPC 000 305 L0101 161

Notes

162 2CPC 000 313 B0101 | Work book

Declaration of conformity

Declaration of conformity
Company stamp

We declare under our sole responsibility that the product

¨ Sub-distribution board,

¨ Power Switchgear Combination (PSC)

¨ Sub-distribution board (DBO) for a use by ordinary people,

Designation, type, catalogue or order number:

to which this declaration refers, complies with the following standard(s).

Low-voltage switchgear and controlgear ASSEMBLIES

¨ Power Switchgear Combination (PSC) Design verification pursuant to IEC 61439-2 / VDE

¨ Sub-distribution board (DBO) Design verification pursuant to IEC 61439-3 / VDE

The product named complies with the provisions of the following European directives:

¨ Low-voltage directive 2006/95/EC

¨ EMC directive 2004/108/EC (e.g. for electronic equipment installed

to ASSEMBLIES or distribution boards pursuant to IEC 61439-1/-2)

Date of affixing of the CE-marking1): __ __.__ __.__ __ __ __

1)
Visibly affixed to the ASSEMBLY or the distribution board together with the manufacturer ID,
if necessary only readable when the door is open.

With this declaration of conformity the manufacturer certifies compliance with the specified directives and standards.
This declaration of conformity meets the provisions of IEC 45014 - General criteria for supplier's declaration of conformity.

Conformity assessment procedure carried out by:

Place / Date Name and signature of the executor

Place / Date Name and signature of the authorized person

K-0323 Declaration of conformity • PDF 05/2015 • 2CPC 323 045 L0201 Copyright © 2015 STRIEBEL & JOHN • All rights reserved

Work book | 2CPC 000 305 L0101 163

Notes

164 2CPC 000 313 B0101 | Work book

Examples STRIEBEL & JOHN

For many of the characteristics required for a design verification

of our products we as system manufacturer have the associated
test documents delivered by independent test institutes.

You as SUJ's system partner are free to access these documents

using our web portal.

Work book | 2CPC 000 305 L0101 165

Notes

166 2CPC 000 313 B0101 | Work book

Contact us

STRIEBEL & JOHN GmbH & Co. KG We reserve the right to make technical changes or modify

K-0313-pdf-06/2015-V1 · 2CPC 000 313 C0201

the contents of this document without prior notice. With regard
Am Fuchsgraben 2 - 3
to purchase orders, the agreed particulars shall prevail.
77880 Sasbach STRIEBEL & JOHN does not accept any responsibility whatsoever for
Germany potential errors or possible lack of information in this document.
Phone: + 49 7841 609 0
Fax: + 49 7841 609 545 We reserve all rights in this document and in the subject matter and
illustrations contained therein. Any reproduction, disclosure to third
E-mail: info.desuj@de.abb.com parties or utilization of its contents - in whole or in parts - is forbidden
without prior written consent of STRIEBEL & JOHN.
www.striebelundjohn.com
Copyright © 2015 STRIEBEL & JOHN
All rights reserved