IS 16103 (Part 1) : 2012

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Indian Standard
LED MODULES FOR GENERAL LIGHTING
PART 1 SAFETY REQUIREMENTS

ICS 29.140.99

© BIS 2012
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

February 2012 Price Group 4

For BIS use only, New Delhi:2020-04-06 19:31:36

 Electric Lamps and Their Auxiliaries Sectional Committee, ETD 23

FOREWORD
This Indian Standard (Part 1) was adopted by the Bureau of Indian Standards, after the draft finalized by the
Electric Lamps and Their Auxiliaries Sectional Committee had been approved by the Electrotechnical Division
Council.
This standard specifies the general and safety requirements for LED modules for general lighting services.
The performance requirements have been covered in Part 2 of this standard.
This standard is published in two parts. The other part in the series is:
Part 2 Performance requirements
This standard for LED modules for general lighting applications acknowledges the need for relevant tests for this
new source of electrical light, sometimes called ‘solid state lighting’.
The provisions in this standard represent the technical knowledge of experts from the fields of the semiconductor
industry and those of the traditional electrical light sources. Two types of LED modules namely with integral and
external control gear are covered in this standard.
This standard is based on IEC 62031 : 2008 ‘LED modules for general lighting — Safety specifications’ and 34A/
1416/CDV, LED modules for general lighting safety specifications, issued by the International Electrotechnical
Commission (IEC) with following modifications.
a) Schedule of type test and acceptance test has been incorporated, and
b) Referred to standards have been changed.
For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,
observed or calculated expressing the result of a test or analysis, shall be rounded off in accordance with IS 2 : 1960
‘Rules for rounding off numerical values (revised)’. The number of significant places retained in the rounded off
value should be the same as that of the specified value in this standard.

For BIS use only, New Delhi:2020-04-06 19:31:36

 IS 16103 (Part 1) : 2012

Indian Standard
LED MODULES FOR GENERAL LIGHTING
PART 1 SAFETY REQUIREMENTS

1 SCOPE IS No. Title

This standard (Part 1) specifies general and safety 4661 : 1999 Glossary of terms used in paper trade
requirements for light-emitting diode (LED) modules: and industry
10322 (Part 1) : Luminaires: Part 1 General
a) LED modules without integral control gear 2012 requirements and tests
for operation under constant voltage, constant 15885 (Part 1) : Lamp controlgear: Part 1 Safety
current or constant power; and 2011 requirements
b) Self-ballasted LED modules for use on d.c. 15885 (Part 2/ Lamp controlgear: Part 2 Particular
supplies up to 250 V or a.c. supplies up to Sec 13) : 2012 requirements, Section 13 d.c. or
1 000 V at 50 Hz. a.c. supplied electronic control gear
The performance requirements are given in a separate for LED modules
standard IS 16103 (Part 2) : 2012 ‘LED modules for 16101 : 2012 Terms and definitions for LEDs and
general lighting : Part 2 Performance requirements’. LED modules in general lighting
16104 : 2012 d.c. or a.c. supplied electronic control
NOTES gear for LED modules —
1 The safety requirements for separate control gear are specified Performance requirements
in IS 15885 (Part 2/Sec 13) : 2012 ‘Lamp Controlgear: Part 2
Particular requirements, Section 13 d.c. or a.c. supplied
16108 : 2012 Photobiological safety of lamps and
electronic control gear for LED modules’. lamp systems
2 The performance requirements for separate control gear are
specified in IS 16104 : 2012 ‘d.c. or a.c. supplied electronic 3 TERMINOLOGY
controlgear for LED modules — Performance requirements’.
For the purposes of this standard, the definitions given
3 Requirements for LED modules with integrated control gear
and equipped with a lamp cap (self-ballasted lamp), intended in 16101 and the following shall apply.
for mains voltage general lighting service retrofit applications
(thereby replacing existing lamps with identical lamp caps) 3.1 Light-Emitting Diode (LED) — Solid state device
are specified in IS 16102 (Part 1) : 2012 ‘Self-ballasted LED embodying a p-n junction emitting optical radiation
lamps for general lighting services: Part 1 Safety requirements'. when excited by an electric current.
4 Requirements for LED modules with integrated control gear
and equipped with a lamp cap (self-ballasted lamp), intended 3.2 LED Module — Unit supplied as a light source.
for non-mains voltage general lighting service retrofit In addition to one or more LEDs, it may contain further
applications (thereby replacing existing lamps with identical components, for example optical, mechanical,
lamp caps) are under consideration.
electrical and electronic, but excluding the control
5 Where in the requirements of this standard both types of
LED modules, with and without integral control gear, are
gear.
addressed, the word ‘modules’ is used instead. Where only the
3.3 Self-Ballasted LED Module — LED module,
expression ‘LED module(s)’ is used, it is understood to refer
to the type without integral control gear. designed for connection to the supply voltage.
NOTE — If the self-ballasted LED module is equipped with a
An overview of systems composed of LED modules
lamp cap, it is regarded to be a self-ballasted lamp.
and control gear is given in Annex B.
3.4 Integral LED Module — LED module, generally
2 REFERENCES designed to form a non-replaceable part of a luminaire.
The following Indian Standards are necessary adjuncts 3.5 Integral Self-Ballasted LED Module — Self-
to this standard: ballasted LED module, generally designed to form a
IS No. Title non-replaceable part of a luminaire.
2500 (Part 1) : Sampling procedures for inspection 3.6 Built-in LED Module — LED module, generally
2000 by attributes: Part 1 Sampling designed to form a replaceable part built into a
schemes; indexed by acceptance luminaire, a box, an enclosure or the like and not
quality limit (AQL) for lot-by-lot intended to be mounted outside a luminaire, etc,
inspection (third revision) without special precautions.

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 IS 16103 (Part 1) : 2012

3.7 Built-in Self-Ballasted LED Module 4.2 For LED modules, all electrical measurements,
unless otherwise specified, shall be carried out at
Self-ballasted LED module, generally designed to form
voltage limits (Min/Max), current limits (Min/Max) or
a replaceable part built into a luminaire, a box, an
power limits (Min/Max) and minimum frequency, in a
enclosure or the like and not intended to be mounted
draught-free room at the temperature limits of the
outside a luminaire, etc, without special precautions.
allowed range specified by the manufacturer. Unless
3.8 Independent LED Module — LED module, so the manufacturer indicates the most critical
designed that it can be mounted or placed separately combination, all combinations (Min/Max) of voltage/
from a luminaire, an additional box or enclosure or current/power and temperature shall be tested.
the like. The independent LED module provides all
4.3 For self-ballasted LED modules, the electrical
the necessary protection with regard to safety according
measurements shall be carried out at the tolerance limit
to its classification and marking.
values of the marked supply voltage.
NOTE — The control gear must not necessarily be integrated
in the module. 4.4 Integral modules not having their own enclosure
shall be treated as integral components of luminaires
3.9 Independent Self-Ballasted LED Module — Self-
as defined in 0.5 of IS 10322 (Part 1). They shall be
ballasted LED module, so designed that it can be mounted
tested assembled in the luminaire, and as far as
or placed separately from a luminaire, an additional box
applicable with the present standard.
or enclosure or the like. The independent LED module
provides all the necessary protection with regard to safety 4.5 In addition, independent modules shall comply with
according to its classification and marking. the requirements of IS 10322 (Part 1), including
NOTE — The control gear may be integrated in the module. marking requirements of that standard such as IP
classification and mechanical stress.
3.10 Rated Maximum Temperature (tc) — Highest
permissible temperature which may occur on the outer 4.6 If the module is a factory sealed unit, it shall not
surface of the LED module (at the indicated position, be opened for any tests. In the case of doubt based on
if marked) under normal operating conditions and at the inspection of the module and the examination of
the rated voltage/current/power or the maximum of the the circuit diagram, and in agreement with the
rated voltage/current/power range. manufacturer or responsible vendor, such specially
prepared modules shall be submitted for testing so that
3.11 Heat Transfer Temperature (td) — Temperature
a fault condition can be simulated.
occurring on a representative part of the LED module
(or any heat-conducting foil or paste applied as for 5 GENERAL TEST REQUIREMENTS
insertion if delivered with the module) (at the indicated
position if marked) intended for the passing of heat to 5.1 Tests according to this standard shall be type tests.
the lampholder or to other parts of the luminaire under NOTE — The requirements and tolerances permitted by this
normal operating conditions and at the rated voltage/ standard are related to testing of a type test sample submitted
current/power or the maximum of the rated voltage/ by the manufacturer for that purpose. Compliance of the type
test sample does not ensure compliance of the whole production
current/power range.
of a manufacturer with this safety standard.
NOTE — A measurement method is under consideration.
Conformity of production is the responsibility of the
3.12 Heat Output to the Luminaire (Pd) — Power to manufacturer and may need routine tests and quality
be transferred to the luminaire by means of heat- assurance in addition to type testing.
conduction in order to keep tc under control.
5.2 Unless otherwise specified, the tests shall be carried
NOTES out at an ambient temperature of 25 ± 2°C.
1 Pd is below the rated power of an LED module.
2 For LED modules which do not need heat-conduction to the 5.3 Unless otherwise specified, the type test shall be
luminaire for keeping tc Pd is equal to zero. carried out on one sample consisting of one or more
3 A measurement method is under consideration. items submitted for the purpose of the type test.
3.13 Acceptance Test — Tests carried out on samples In general, all tests shall be carried out on each type of
taken from a lot for the acceptance of the lot. module or, where a range of similar modules is
involved, for each wattage in the range or on a
4 GENERAL REQUIREMENTS representative selection from the range, as agreed with
4.1 Modules shall be so designed and constructed that the manufacturer.
in normal use (see manufacturer’s instruction) they 5.4 If the light output has detectably changed, the
operate without danger to the user or surroundings. module shall not be used for further tests.

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 IS 16103 (Part 1) : 2012

NOTE — Usually, a value of 50 percent indicates irreversible independent modules. The mark shall be
changes in the module.
located on the packaging or on the module
5.5 For Safety Extra Low Voltage (SELV) itself.

Operated LED modules, the requirements of Annex L

in IS 15885 (Part 1) shall apply.
General conditions for tests are given in Annex A.

6 CLASSIFICATION
Modules are classified, according to the method of
installation, as,
a) built-in;
b) independent; and
c) integral.
FIG. 1 SYMBOL FOR BUILT-IN MODULES
For integral modules, Note under 1.2.1 of IS 10322
j) The heat transfer temperature td (if the LED
(Part 1) shall apply.
module is provided with a cap enabling the
7 MARKING insertion and the withdrawal without the use
of tools and reliant on heat-conduction to the
7.1 Mandatory Marking for Built-in or Independent luminaire).
Modules k) The power for heat-conduction Pd (if the LED
a) Mark of origin (trade-mark, manufacturer’s module is provided with a cap enabling the
name or name of the responsible vendor/ insertion and the withdrawal without the use
supplier). of tools and reliant on heat-conduction to the
luminaire). If Pd is not known exactly, the
b) Model number or type reference of the
rated power of the LED module may be taken
manufacturer.
instead.
c) Either the
1) Power or power range; 7.2 Location of Marking
2) If the LED module requires a stable Items 7.1 (a) to 7.1 (c) and 7.1 (f) shall be marked on
voltage(s), the rated supply voltage or the module.
voltage range, both together with the
supply frequency shall be marked. Items 7.1 (d) to 7.1 (h) and 7.1 (k) shall be marked
Marking of the rated supply current(s) is legible on the module or on the module data sheet.
voluntary; and For integral modules, no marking is required, but the
3) If the LED module requires a stable information given in 7.1 (a) to 7.1 (g) shall be provided
current, the rated supply current(s) or in the technical literature of the manufacturer.
current range, both together with the
supply frequency shall be marked. 7.3 Durability and Legibility of Marking
Marking of the rated supply voltage(s) is For items 7.1 (a) to 7.1 (c) and 7.1 (f), compliance is
voluntary. checked by inspection and by trying to remove the
d) Nominal power. marking by rubbing the area lightly by hand for 15 s
e) Indication of position and purpose of the with a piece of smooth cloth, dampened with water.
connections where it is necessary for safety. The marking shall be legible after the test.
In case of connecting wires, a clear indication
shall be given in a wiring diagram. For items 7.1 (d) to 7.1 (h) and 7.1 (k), compliance is
checked by inspection.
f) Value of tc. If this relates to a certain place on
the LED module, this place shall be indicated 7.4 BIS Certification Marking
or specified in the manufacturer’s literature.
g) For eye protection, see requirements of The LED modules may also be marked with the
IS 16108. Standard Mark.
h) Built-in modules shall be marked as given in 7.4.1 The use of the Standard Mark is governed by the
Fig. 1 in order to separate them from provisions of the Bureau of Indian Standards Act, 1986

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 IS 16103 (Part 1) : 2012

and the Rules and Regulations made thereunder. The has passed the test, provided the compliance (see 4.1
details of conditions under which the licence for the and last paragraph of 13.2) is fulfilled.
use of the Standard Mark may be granted to
After finalizing the overpower mode, the module is
manufacturers or producers may be obtained from the
operated under normal conditions until thermally being
Bureau of Indian Standards.
stable.
8 TERMINALS A module fails safe if no fire, smoke or flammable gas
For screw terminals, the requirements of Section 14 of is produced and if the 15 min overpower condition has
IS 10322 (Part 1) shall apply, if applicable. been withstood. To check whether molten material
might present a safety hazard, a tissue paper, as specified
For screwless terminals, the requirements of section 15 in IS 4661, spread below the module shall not ignite.
of IS 10322 (Part 1) shall apply, if applicable.
14 CONFORMITY TESTING DURING
9 PROVISIONS FOR PROTECTIVE EARTHING MANUFACTURE
The requirements of 9 of IS 15885 (Part 1) shall apply. See Annex C.
10 PROTECTION AGAINST ACCIDENTAL 15 CONSTRUCTION
CONTACT WITH LIVE PARTS
Wood, cotton, silk, paper and similar fibrous material
The requirements of 10 of IS 15885 (Part 1) shall apply. shall not be used as insulation.
11 MOISTURE RESISTANCE AND INSULATION Compliance is checked by inspection.
The requirements of 11 of IS 15885 (Part 1) shall apply. 16 CREEPAGE DISTANCES AND CLEARANCES
12 ELECTRIC STRENGTH The requirements of section 11 of IS 10322 (Part 1)
shall apply.
The requirements of 12 of IS 15885 (Part 1) shall apply.
17 SCREWS, CURRENT-CARRYING PARTS
13 FAULT CONDITIONS
AND CONNECTIONS
13.1 General The requirements of 17 of IS 15885 (Part 1) shall apply.
The module shall not impair safety when operated
18 RESISTANCE TO HEAT, FIRE AND
under fault conditions that may occur during the
TRACKING
intended use. The requirements of 14 of IS 15885
(Part 1) shall apply. The requirements of 18 of IS 15885 (Part 1) shall apply.
Additionally, the test given in 13.2 shall be carried out. 19 RESISTANCE TO CORROSION
13.2 Overpower Condition The requirements of 19 of IS 15885 (Part 1) shall apply.
The test shall be started at an ambient temperature as 20 INFORMATION TO LUMINAIRE DESIGN
specified in Annex A.
See Annex D.
The module shall be switched on and the power
monitored (at the input side) and increased until 150 21 HEAT MANAGEMENT
percent of the rated voltage, current or power is
21.1 Heat-conducting Foil and Paste
reached. The test shall be continued until the module
is thermally stabilized. A stable condition is reached, For the purpose of heat-transfer from the LED module
if the temperature does not change by more than 5 K to the luminaire, the use of a heat-conducting foil can
in 1 h. The temperature shall be measured in the tc be necessary. Any heat-conducting foil shall be
point. The module shall withstand the overpower delivered within the LED module packaging.
condition for at least 15 min, the time period of which Heat-conducting paste shall not be used (under
can lie within the stabilization period, if the temperature consideration).
change is ≤ 5 K.
21.2 Heat Protection
If the module contains an automatic protective device
or circuit which limits the power, it is subjected to a LED modules shall be equipped with a device that cuts
15 min operation at this limit. If the device or circuit the power off or reduces it when tc is exceeded (under
effectively limits the power over this period, the module consideration).

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 IS 16103 (Part 1) : 2012

21.3 Construction h) Conformity testing during manufacture

The heat-conduction from the LED module to the (see 14);
luminaire, the electrical connection and the mechanical j) Construction (see 15);
holding in the cap/holder system should be separate k) Creepage distances and clearances (see 16);
unless the contrary is proven safe (under m) Screws, current-carrying parts and
consideration). connections (see 17);
n) Resistance to heat, fire and tracking (see 18);
22 TESTS
p) Resistance to corrosion (see 19); and
22.1 Classification of Tests q) Heat management (see 21).
22.1.1 Type Tests
22.2 Acceptance Test
The following shall constitute the type tests to be
carried out on selected sample of LED module, sample The sampling plan for acceptance tests shall be as
being drawn preferably from regular production lot: specified in IS 2500 (Part 1). The following shall
constitute as acceptance tests:
a) Marking (see 7);
a) Marking (see 7),
b) Terminals (see 8);
b) Terminals (see 8),
c) Provisions for protective earthing (see 9);
c) Provisions for protective earthing (see 9),
d) Protection against accidental contact with live
parts (see 10); d) Protection against accidental contact with live
parts (see 10),
e) Moisture resistance and insulation (see 11);
e) Moisture resistance (see 11),
f) Electric strength (see 12);
f) Electric strength (see 12), and
g) Fault conditions (see 13);
g) Fault conditions (see 14).

ANNEX A
(Clauses 5.5 and 13.2)
TESTS
A-1 Clauses H-1, H-2, H-4, H-7, and to sub- not be taken into account. In all clauses, the term LED
clause H-11.2 of IS 15885 (Part 1) shall be applicable. module shall be used in place ‘lamp’, ‘(lamp) control
However with regard to H-1.3, the first paragraph shall gear’ or ‘ballast’.

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 IS 16103 (Part 1) : 2012

ANNEX B
(Clause 1)
OVERVIEW OF SYSTEMS COMPOSED OF LED MODULES AND CONTROLGEAR

FIG. 2 OVERVIEW OF S YSTEMS C OMPOSED OF LED M ODULES AND CONTROLGEAR

ANNEX C
(Clause 14)
CONFORMITY TESTING DURING MANUFACTURE

C-1 The test is carried out on 100 percent of production. It For independent and built-in modules, Annex Q of
is combined with the measurement of input power at rated IS 10322 (Part 1) is applicable, but without polarity check.
voltage/current. The luminous flux of no module should NOTE — Very low values of the luminous flux indicate internal
be significantly lower than that of the rest of the production. losses that may be safety relevant, like current bridges.

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 IS 16103 (Part 1) : 2012

ANNEX D
(Clause 20)
INFORMATION FOR LUMINAIRE DESIGN

D-1 GENERAL t1 and thermal resistances (Rth, module, Rth, luminaire, and
Rth, ambient) is given in Fig. 3.
This Annex applies for LED modules that
The thermal resistances shown in Fig. 3 can be added
a) have a cap/base enabling the insertion and the to a thermal resistance of the system:
withdrawal of the LED module with or
without the use of tools; and Rth, module + Rth, luminaire + Rth, ambient = Rth, system …(1)
b) do not have a heat management on board and Any thermal resistance can be calculated from the
rather rely on heat-conduction to the luminaire temperature difference and the heat flow, for example:
for safe operation.
Rth, system = (tc – ta) / Pd …(2)
This Annex covers only those provisions that are Rth, module = (tc – td) / Pd …(3)
related to the thermal needs specific for these LED
modules. The design freedom of the luminaire is given by the
sum of Rth, luminaire + Rth, ambient. It can be calculated as
NOTE — Because of their non-interchangeability, integral LED follows:
modules are excluded. Because independent LED modules are
luminaire-like, not needing protection or else from a luminaire Rth, luminaire + Rth, ambient = (td – ta) / Pd …(4)
neither using a lampholder, they have to provide for their own
heat management and are excluded. Only built-in LED modules D-3 IN-SITU TESTING
remain within the scope of this Annex.
The knowledge of td and Pd as provided by the LED
For safe operation of these LED modules it is essential
module manufacturer, of the geometry and the surface
to observe the recommendations of this Annex. properties of the cap and of the ta of the luminaire to
D-2 DESIGN FREEDOM be designed, will allow for designing a luminaire that
will most probably keep the tc of the LED module.
A diagrammatic cross-section of an LED module fixed However, in-situ testing if the luminaires does so will
by means of a lampholder to a luminaire with the still be necessary.
locations for temperature measurements (ta, tc, td, tj and
Details of the test procedure are under consideration.

ta — rated maximum ambient temperature of the luminaire as Rth, module — thermal resistance between tc point and td point;
defined in IS 10322 (Part 1); Rth, luminaire — thermal resistance between td point and tl point;
tc — rated maximum temperature; and
td — minimum heat transfer temperature; Rth, ambient — thermal resistance between t l and ambient.
tj — junction temperature (shown for illustration only);
t1 — temperature on the surface of the luminaire (shown for
illustration only);
All dimensions in millimetres.

FIG. 3 DIAGRAMMATIC CROSS SECTION OF AN LED MODULE (BLUE) FIXED BY MEANS OF A LAMPHOLDER
(YELLOW) TO A LUMINAIRE (LIGHT BLUE, WITH SYMBOLISED COOLING F INS)

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 Bureau of Indian Standards

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harmonious development of the activities of standardization, marking and quality certification of goods
and attending to connected matters in the country.

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BIS has the copyright of all its publications. No part of these publications may be reproduced in any form
without the prior permission in writing of BIS. This does not preclude the free use, in the course of
implementing the standard, of necessary details, such as symbols and sizes, type or grade designations.
Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed
periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are
needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards
should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of
‘BIS Catalogue’ and ‘Standards : Monthly Additions’.

This Indian Standard has been developed from Doc No.: ETD 23 (6300).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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