ICS 29.240.

20
SANS 10198-1 :2004
ISBN 0-626-15487-1 Edition 2

SOUTH AFRICAN NATIONAL STANDARD

The selection, handling and installation of

Part 1: Definitions and statutory requirements

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© Standards South Africa (<:::I divisie>n e>1' SASS)
Foreword

SANS 10198-1 :2004

Table of changes
Change No. Date Scope

Abstract
Covers definitions and statutory requirements pertaining to the installation of electric power cables,
and the parties to be consulted regarding the laying of cables near roads, railways, pipelines,
powerlines and other services.

Keywords
cable laying, definitions, electric cables, electric conductors, legislation, power cables, statutory
requirements.

Acknowledgement
Standards South Africa wishes to acknowledge the valuable assistance received from the
Association of Electric Cable Manufacturers of South Africa.
 SANS 10198-1 :2004
Edition 2

Contents
Page

Abstract

Keywords

Acknowledgement

Foreword ....................................................................................................................................

1 Scope ..................................................................................................................................... 5

2 Definitions .............................................................................................................................. 5

3 Applicable Acts and related standards .................................................................. ................ 6

4 Installation of cables near roads, railways, pipelines, powerlines and other services............ 7

5 Planning and submission of proposals .............. .................. .................................................. 7

Bibliography......... ....................... ........... ..... .......... ..................................... ..... ..................... .... 8

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 SANS 10198-1: 2004
Edition 2

The selection, handling and installation of electric power cables of

Part 1:
Definitions and statutory requirements

1 Scope
This part of SANS 10198 covers definitions and statutory requirements pertaining to the installation
of electric power cables, and the parties to be consulted regarding the laying of cables near roads,
railways, pipelines, powerlines and other services.

2 Definitions
For the purposes of this part of SANS 10198, the following definitions apply.

2.1
cable
length of insulated conductor (or two or more insulated conductors assembled together) that might
or might not be provided with an overall mechanical covering

2.2
circuit-breaker
mechanical switching device capable of making, carrying and breaking electric currents under
normal circuit conditions, and also of making, carrying for a specified time and breaking currents
under specified abnormal circuit conditions, such as those of short circuit

2.3
close overcurrent protection
<circuit> overcurrent protection that, when the current flowing is equal to 1,5 times the rated current
of the circuit which it protects, will operate within 4 h

2.4
earthed
so connected to the general mass of earth as to ensure an immediate discharge of electrical energy
at all times and without danger

2.5
earth fault
insulation failure between a conductor and earth

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SANS 10198-1 :2004
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2.6
earth leakage protection device
device that is capable of detecting a specified or predetermined current from a circuit to earth, and
of disconnecting automatically and reliably the affected circuit within a specified time when such
current exceeds the specified or predetermined value

2.7
earth resistance
resistance of earth to the flow of electric current

2.8
fault current
current resulting from insulation failure or from the bridging of insulation

2.9
fully restrained system
installation in which all cable movement is prevented

2.10
low voltage
LV
voltage of r.m,s. value not exceeding 1 000 V

2.11
overcurrent
any current that exceeds the prescribed rated or designed current

2.12
sustained current rating
continuous power frequency r.m,s. current that a cable will carry under the conditions in which it is
installed

2.13
unrestrained system
installation in which the movement of cable due to expansion and contraction is allowed to occur

2.14
voltage drop
difference in electric potential (r.m.s.) between two points on a feeder, owing to actual circuit
parameters, for example circuit impedance, line reactance, length and size of conductor and the
type of material of the conductor (electrical resistance)

3 Applicable Acts and related standards

3.2 Attention is also drawn to the provisions of SANS 97, SANS 1339, SANS 1507 (all parts) and
SANS 10142-1.

3.3 In South Africa, SANS 97, SANS 1339 and the SANS 1507 series of standards have been
declared compulsory (see foreword).

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4 Installation of cables near roads, railways, pipelines, powerlines

4.1 For road reserves within urban areas, most local and regional authorities have prepared
recommendations for the standard relative arrangement of services within the sidewalks. Adhere to
these recommendations where possible. Main cable routes might require greater width within the
sidewalks than has been provided and therefore the road reserve widths might have to be
increased. For this reason, determine from the telecommunication authority and the electrical
distribution authority for the area concerned where main cable routes are to be located within the
development. Where proposed cable routes cross servitudes granted for other purposes, such as
local authority, regional and national roads, railways, oil and gas pipelines, and the electricity
powerlines and cables, obtain permission for the crossing from the appropriate authority. As the
conditions likely to be imposed vary from place to place, make a separate application in each
instance.

4.2 Where proposed cable routes are to be located in the vicinity of or on the property of another
party, consult that party.

4.3 Where proposed cable routes are to be located in the vicinity of other services. the presence
of such services seldom being obvious. consult the owners of those services.

5 Planning and submission of proposals

5.1 Submit all proposals for the installation of electric cables, other than underground service
connections, to the telecommunication authority for approval before any work is undertaken. (See
also SANS 10198-2.)

5.2 Consult the local authority in whose area the cable is to be installed with regard to local bylaws
and regulations governing the supply and use of electricity.

5.3 At the planning stage of a cable installation, take into account all statutory requirements. In the
interests of economy, particularly where the expenditure of public funds is involved, give
consideration also to a co-ordinated sequence of construction of roads, sewage and stormwater
drains and the use of shared trenches for electricity, water and telecommunication services.

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Bibliography

SANS 97 (SABS 97), Electric cables Impregnated paper-insulated metal-sheathed cables for
rated voltages 3,3/3,3 kV to 19/33 kV (excluding pressure assisted cables).

SANS 1339, Electric cables - Cross-linked polyethylene (XLPE) insulated cables for rated voltages
3,816,6 kV to 19/33 kV.

SANS 1507-1 (SABS 1507-1), Electric cables with extruded solid dielectric insulation for fixed
installations (300/500 V to 1 90013 300 V) - Part 1: General.

SANS 1507-2 (SABS 1507-2), Electric cables with extruded solid dielectric insulation for fixed
installations (300/500 V to 1 900/3 300 V) - Part 2: Wiring cables.

SANS 1507-3 (SABS 1507-3), Electric cables with extruded solid dielectric inSUlation for fixed
installations (300/500 V to 1 900/3 300 V) - Part 3: PVC Distribution cables.

SANS 1507-4 (SABS 1507-4), Electric cables with extruded solid dielectric insulation for fixed
installations (300/500 V to 1 900/3 300 V) - Part 4: XLPE Distribution cables.

SANS 1507-5 (SABS 1507-5), Electric cables with extruded solid dielectric insulation for fixed
installations (300/500 V to 1 900/3 300 V) - Part 5: Halogen-free distribution cables.

SANS 1507-6 (SABS 1507-6), Electric cables with extruded solid dielectric inSUlation for fixed
installations (300/500 V to 1 900/3 300 V) - Part 6: Service cables.

SANS 10142-1, The wiring of premises - Part 1: Low-voltage installations.

SANS 10198-2, The selection, handling and installation of electric power cables of rating not
exceeding 33 kV - Part 2: Selection of cable type and methods of installation.

© Standards South Africa