IEC 60968:2012
(Main)Self-ballasted lamps for general lighting services - Safety requirements
Self-ballasted lamps for general lighting services - Safety requirements
IEC 60968:2012 specifies the safety and interchangeability requirements, together with the test methods and conditions, required to show compliance of tubular fluorescent and other gas-discharge lamps with integrated means for controlling starting and stable operation (self-ballasted lamps), intended for domestic and similar general lighting purposes, having:
- a rated wattage up to 60 W;
- a rated voltage of 100 V to 250 V;
- Edison screw or bayonet caps.
The requirements of this standard relate only to type testing. This second edition cancels and replaces the first edition published in 1988, Amendment 1:1991 and Amendment 2:1999. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition.
a) For reasons of photobiological safety, the scope has been extended.
b) A new definition and clause on UV radiation have been introduced.
c) Clauses on normative references and an annex on literature were added.
d) The latest IEC template has been adapted.
Lampes à ballast intégré pour l'éclairage général - Exigences de sécurité
La CEI 60968:2012 spécifie les exigences de sécurité et d'inter-changeabilité ainsi que les méthodes et les conditions d'essais exigés pour démontrer la conformité des lampes tubulaires à fluorescence et autres lampes à décharge à dispositif intégré d'amorçage et de stabilisation du fonctionnement (lampes autoballastées) destinées à l'éclairage domestique et similaire et ayant:
- une puissance nominale inférieure ou égale à 60 W;
- une tension nominale de 100 V à 250 V;
- un culot à vis Edison ou un culot à baïonnette.
Les exigences de la présente norme ne concernent que les essais de type. Cette deuxième édition annule et remplace la première édition parue en 1988, l'Amendement 1:1991 et l'Amendement 2:1999. Elle constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente.
a) Pour des raisons de sécurité photobiologique, le domaine d'application a été étendu.
b) Une nouvelle définition et un nouvel article traitant du rayonnement UV ont été introduits.
c) Un article concernant les références normatives et une annexe traitant de la littérature ont été introduits.
d) Le document a été adapté au format CEI le plus récent.
General Information
Relations
Standards Content (Sample)
IEC 60968
®
Edition 2.0 2012-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Self-ballasted lamps for general lighting services – Safety requirements
Lampes à ballast intégré pour l'éclairage général – Exigences de sécurité
IEC 60968:2012
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IEC 60968
®
Edition 2.0 2012-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Self-ballasted lamps for general lighting services – Safety requirements
Lampes à ballast intégré pour l'éclairage général – Exigences de sécurité
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX R
ICS 29.140.30 ISBN 978-2-83220-378-1
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – 60968 © IEC:2012
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 General requirement and general test requirements . 8
5 Marking . 8
6 Interchangeability . 9
7 Protection against electric shock . 10
8 Insulation resistance and electric strength after humidity treatment . 10
8.1 General . 10
8.2 Insulation resistance . 10
8.3 Electric strength . 10
9 Mechanical strength . 11
10 Cap temperature rise . 11
11 Resistance to heat . 12
12 Resistance to flame and ignition . 12
13 Fault conditions . 13
14 UV radiation . 17
Bibliography . 18
Figure 1 – Dimming not allowed . 9
Figure 2 – Standard test finger . 14
Figure 3 – Holder for torsion test on lamps with screw caps . 15
Figure 4 – Holder for torque test on lamps with bayonet caps . 16
Figure 5 – Ball-pressure apparatus . 17
Table 1 – Interchangeability gauges and lamp cap dimensions . 9
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60968 © IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SELF-BALLASTED LAMPS FOR
GENERAL LIGHTING SERVICES –
Safety requirements
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
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Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60968 has been prepared by subcommittee 34A: Lamps, of IEC
technical committee 34: Lamps and related equipment.
This second edition cancels and replaces the first edition published in 1988,
Amendment 1:1991 and Amendment 2:1999. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition.
a) For reasons of photobiological safety, the scope has been extended.
b) A new definition and clause on UV radiation have been introduced.
c) Clauses on normative references and an annex on literature were added.
d) The latest IEC template has been adapted.
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– 4 – 60968 © IEC:2012
The text of this standard is based on the following documents:
CDV Report on voting
34A/1540/CDV 34A/1579/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
In this standard, the following print types are used:
– requirements proper: in roman type,
– test specifications: in italic type,
– explanatory matter: in smaller roman type.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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60968 © IEC:2012 – 5 –
INTRODUCTION
With IEC 62471 and IEC/TR 62471-2, there are horizontal requirements available that need to
be introduced into product standards, e.g. to IEC 60968. The horizontal requirement is
transformed into a requirement for self-ballasted lamps.
The lamps within the scope of this standard are general lighting service (GLS) lamps
according to the definition 3.11 in IEC 62471:2006. ".lamps intended for lighting spaces that
are typically occupied or viewed by people.".
According to Clause 6 of IEC 62471:2006, radiation of GLS lamps is measured at a distance
equivalent to 500 lx.
Measured at the 500 lx distance, GLS lamps will not exceed risk group 1 for blue light hazard
and risk group 0 for IR radiation. This combination of risk group and hazard does not require
marking (Table 1 of IEC/TR 62471-2:2009).
Hazards from UV radiation of GLS lamps will be covered by Clause 14 of IEC 60968.
Hence, IEC 62471 does not require any additional marking for GLS lamps.
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SELF-BALLASTED LAMPS FOR
GENERAL LIGHTING SERVICES –
Safety requirements
1 Scope
This International Standard specifies the safety and interchangeability requirements, together
with the test methods and conditions, required to show compliance of tubular fluorescent and
other gas-discharge lamps with integrated means for controlling starting and stable operation
(self-ballasted lamps), intended for domestic and similar general lighting purposes, having:
– a rated wattage up to 60 W;
– a rated voltage of 100 V to 250 V;
– Edison screw or bayonet caps.
The requirements of this standard relate only to type testing.
Recommendations for whole product testing or batch testing are under consideration.
This part of the standard covers photobiological safety according to IEC 62471 and
IEC/TR 62471-2.
Blue light and infrared hazards are below the level which requires marking.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60061, Lamp caps and holders together with gauges for the control of interchangeability
and safety
IEC 60061-1, Lamp caps and holders together with gauges for the control of
interchangeability and safety – Part 1: Lamp caps
IEC 60061-3, Lamp caps and holders together with gauges for the control of
interchangeability and safety – Part 3: Gauges
IEC 60238, Edison screw lampholders
IEC 60360, Standard method of measurement of lamp cap temperature rise
IEC 60695-2-10:2000, Fire hazard testing – Part 2-10: Glowing/hot-wire based test methods –
Glow-wire apparatus and common test procedure
IEC 60695-2-11:2000, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –
Glow-wire flammability test method for end products
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60968 © IEC:2012 – 7 –
IEC 60695-2-12:2010, Fire hazard testing – Part 2-12: Glowing/hot-wire based test methods
– Glow-wire flammability test method for materials
IEC 60695-2-13:2010, Fire hazard testing – Part 2-13: Glowing/hot-wire based test methods
– Glow-wire ignitability test method for materials
IEC 60901, Single-capped fluorescent lamps – Performance specifications
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply:
3.1
self-ballasted lamp
unit which cannot be dismantled without being permanently damaged, provided with a lamp
cap and incorporating a light source and any additional elements necessary for starting and
stable operation of the light source
3.2
type
lamps that, independent of the type of cap, are identical in photometric and electrical rating
3.3
rated voltage
voltage or voltage range marked on the lamp
3.4
rated wattage
wattage marked on the lamp
3.5
rated frequency
frequency marked on the lamp
3.6
cap temperature rise
∆t
s
surface temperature rise (above ambient) of a standard test lampholder fitted to the lamp,
when measured in accordance with the standard method described in IEC 60360
3.7
live part
conductive part which may cause an electric shock in normal use
3.8
type test
test or series of tests made on a type test sample for the purpose of checking compliance of
the design of a given product with the requirements of the relevant standard
3.9
type test sample
sample consisting of one or more similar units submitted by the manufacturer or responsible
vendor for the purpose of the type test
3.10
specific effective radiant UV power
effective power of the UV radiation of a lamp related to its luminous flux
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– 8 – 60968 © IEC:2012
Note 1 to entry: The specific effective radiant UV power is expressed in mW/klm.
Note 2 to entry: The effective power of the UV radiation is obtained by weighting the spectral power distribution of
the lamp with the UV hazard function S (λ). Information about the relevant UV hazard function is given in
UV
IEC 62471. It only relates to possible hazards regarding UV exposure of human beings. It does not deal with the
possible influence of optical radiation on materials, like mechanical damage or discoloration.
4 General requirement and general test requirements
4.1 Self-ballasted lamps shall be so designed and constructed that in normal use they
function reliably and cause no danger to the user or surroundings.
In general, compliance is checked by carrying out all the tests specified.
4.2 All measurements unless otherwise specified, are carried out at rated voltage and
frequency and in a draught-proof room at (25 ± 1) °C.
If lamps are marked with a voltage range, rated voltage is taken as the mean of the voltage
range marked.
4.3 Self-ballasted lamps are non-repairable, factory sealed units. They shall not be opened
for any tests. In the case of doubt based on the inspection of the lamp and the examination of
the circuit diagram, and in agreement with the manufacturer or responsible vendor, lamps
specially prepared so that a fault condition can be simulated shall be submitted for testing
(see Clause 13).
5 Marking
5.1 Lamps shall be clearly and durably marked with the following mandatory markings:
a) mark of origin (this may take the form of a trade mark, the manufacturer's name or the
name of the responsible vendor);
b) rated voltage or voltage range (marked "V" or "volts");
c) rated wattage (marked "W" or "watts");
d) rated frequency (marked in "Hz").
5.2 In addition the following information shall be given by the lamp manufacturer either on
the lamp or packing or in the installation instructions:
a) lamp current;
b) burning position if restricted;
c) for lamps with a weight significantly higher than that of the lamps for which they are a
replacement, attention should be drawn to the fact that the increased weight may reduce
the mechanical stability of certain luminaires;
d) special conditions or restrictions which shall be observed for lamp operation, for example,
operation in dimming circuits. Where lamps are not suitable for dimming, the symbol in
Figure 1 may be used:
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60968 © IEC:2012 – 9 –
Figure 1 – Dimming not allowed
5.3 Compliance is checked by the following:
a) presence and legibility of the marking required in 5.1 – by visual inspection;
b) the durability of the marking is checked by trying to remove it by rubbing lightly for 15 s
with a piece of cloth soaked with water and, after drying, for a further 15 s with a piece of
cloth soaked with hexane. The marking shall be legible after the test;
c) availability of information required in 5.2 – by visual inspection.
6 Interchangeability
6.1 Interchangeability shall be ensured by the use of caps in accordance with IEC 60061-1.
6.2 Compliance of the combination of cap and bulb is checked by the use of gauges for
checking the dimensions controlling interchangeability in accordance with Table 1.
The gauges are those shown in the standard sheet included in IEC 60061-3.
6.3 Self-ballasted lamps, when capped either B22d or E27 shall have a mass not exceeding
1 kg and shall not impart a bending moment, at the lampholder, of more than 2 Nm.
Compliance shall be checked by measurement.
Table 1 – Interchangeability gauges and lamp cap dimensions
Lamp cap Cap dimensions to be checked Gauge sheet no. from
by the gauge IEC 60061-3
B22d A max. and A min. 7006-10
or D1 max. and
B15d N min. 7006-11
Diametrical position of the pins
Insertion in lampholder 7006-4A
Retention in lampholder 7006-4B
E27 Max. dimensions of the screw thread 7006-27B
Min. major diameter of the screw thread 7006-28A
Contact making 7006-50
E26 Max. dimensions of the screw thread 7006-27D
E14 Max. dimensions of the screw thread 7006-27F
Min. major diameter of the screw thread 7006-28B
Contact making 7006-54
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– 10 – 60968 © IEC:2012
7 Protection against electric shock
Self-ballasted lamps shall be so constructed that, without any additional enclosure in the form
of a luminaire, no internal metal parts or live metal parts of the lamp cap are accessible when
the lamp is installed in a lampholder according to IEC 60238.
Compliance is checked by means of the test finger specified in Figure 2, if necessary, with a
force of 10 N.
Lamps with Edison screw caps shall be so designed that they comply with the requirements
for inaccessibility for general lighting service (GLS) lamps.
Compliance is checked with the aid of a gauge in accordance with the current edition of
IEC 60061-3, sheet 7006-51A for E27 caps and sheet 7006-55 for E14 caps.
NOTE Requirements for E26 caps are under consideration.
Lamps with B22 or B15 caps are subject to the same requirements as normal incandescent
lamps with this cap.
External metal parts other than current-carrying metal parts of the cap shall not be or become
live. For testing, any movable conductive material shall be placed in the most onerous
position without using a tool.
Compliance is checked by means of the insulation resistance and electric strength test (see
Clause 8).
8 Insulation resistance and electric strength after humidity treatment
8.1 General
Insulation resistance and electric strength shall be adequate between current-carrying metal
parts of the lamp and accessible parts of the lamp.
8.2 Insulation resistance
The lamp shall be conditioned for 48 h in a cabinet containing air with a relative humidity
between 91 % and 95 %. The temperature of the air is maintained within 1 °C of any
convenient value between 20 °C and 30 °C.
Insulation resistance shall be measured in the humidity cabinet with a d.c. voltage of
approximately 500 V, 1 min after application of the voltage. The insulation resistance between
current-carrying metal parts of the cap and accessible parts of the lamp (accessible parts of
insulating material are covered with metal foil) shall be not less than 4 MΩ.
NOTE The insulation resistance of bayonet caps between shell and contacts is under consideration.
8.3 Electric strength
Immediately after the insulation resistance test, the same parts as specified above shall
withstand a voltage test for 1 min with an a.c. voltage as follows:
– ES caps: between accessible parts and parts of screw caps (accessible parts of insulating
material are covered with metal foil):
• type HV (220 V to 250 V): 4 000 V r.m.s.
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60968 © IEC:2012 – 11 –
• type BV (100 V to 120 V): 2U + 1 000 V
Value U = rated voltage.
During the test, the eyelet and the shell of the cap are short-circuited.
Initially, no more than half the prescribed voltage is applied. It is then gradually raised to
the full value.
No flash-over or breakdown shall occur during the test. Measurements shall be carried out
in the humidity cabinet.
NOTE The distance between the foil and the current-carrying parts is under consideration.
– Bayonet caps: between shell and contacts (under consideration).
9 Mechanical strength
Torsion resistance: The cap shall remain firmly attached to the bulb or that part of the lamp
which is used for screwing the lamp in or out when subjected to the torque levels listed below.
B22d . 3 Nm
B15d . 1,15 Nm
E26 and E27 . 3 Nm
E14 . 1,15 Nm
The test is made by means of the test holders shown in Figures 3 and 4.
The torque shall not be applied suddenly, but shall be increased continuously from zero to the
specified value.
In the case of uncemented caps, relative movement between cap and bulb is permitted
provided it does not exceed 10°.
After the mechanical strength test, the sample shall comply with the requirements of
accessibility (see Clause 7).
10 Cap temperature rise
The cap temperature rise ∆t of the complete lamp during run-up, stabilization period and after
s
stabilization shall not exceed the values mentioned below when measured under the
conditions specified in IEC 60360:
B22d . 125 K
B15d . 120 K
E27 . 120 K
E14 . 120 K
E26 . under consideration
Measurement shall be carried out at rated voltage. If the lamp is marked with a voltage range,
it shall be measured at the mean voltage of that range, provided the limits of the voltage
range do not differ by more than 2,5 % from the mean voltage. For lamps with a wider range,
the measurement shall be made at the highest value of the range.
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– 12 – 60968 © IEC:2012
11 Resistance to heat
Self-ballasted lamps shall be sufficiently resistant to heat. External parts of insulating material
providing protection against electric shock, and parts of insulating material retaining live parts
in position shall be sufficiently resistant to heat.
Compliance is checked by subjecting the parts to a ball-pressure test by means of the
apparatus shown in Figure 5.
The test is made in a heating cabinet at a temperature of (25 ± 5) °C in excess of the
operating temperature of the relevant part according to Clause 10, with a minimum of 125 °C
*
for parts retaining live parts in position and 80 °C for other parts. The surface of the part to
be tested is placed in the horizontal position and a steel ball of 5 mm diameter pressed
against this surface with a force of 20 N.
The test load and the supporting means are placed within the heating cabinet for a sufficient
time to ensure that they have attained the stabilized testing temperature before the test
commences.
The part to be tested is placed in the heating cabinet, for a period of 10 min, before the test
load is applied.
If the surface under test bends, the part where the ball presses is supported. For this
purpose, if the test cannot be made on the complete specimen, a suitable part may be cut
from it.
The specimen shall be at least 2,5 mm thick, but if such a thickness is not available on the
specimen, then two or more pieces are placed together.
After 1 h the ball is removed from the specimen which is then immersed for 10 s in cold water
for cooling down to approximately room temperature. The diameter of the impression is
measured, and shall no
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