SIST EN 60598-2-20:2010
(Main)Luminaires - Part 2-20: Particular requirements - Lighting chains (IEC 60598-2-20:2010)
Luminaires - Part 2-20: Particular requirements - Lighting chains (IEC 60598-2-20:2010)
This draft specifies requirements for lighting chains fitted with series- or parallel- or a combination of series/parallel- connected incandescent lamps for use either indoors or outdoors on supply voltages not exceeding 250 V.
Luminaires - Partie 2-20: Règles particulières - Guirlandes lumineuses (IEC 60598-2-20:2010)
Luminaires - Partie 2-20: Règles particulières - Guirlandes lumineuses (CEI 60598-2-20:2010)
La CEI 60598-2-20:2010 spécifie les exigences applicables aux guirlandes lumineuses de lampes à incandescence montées en série, en parallèle ou en combinaison série/parallèle pour emploi à l'intérieur ou à l'extérieur, pour des tensions d'alimentation ne dépassant pas 250 V. Cette troisième édition annule et remplace la deuxième édition parue en 1996, l'amendement 1 (1998), l'amendement 2 (2002) et les feuilles d'interprétation de mars 2001 (1) et juillet 2003 (2 et 3). Cette troisième édition se base sur la deuxième édition, ses amendements 1 et 2 et les feuilles d'interprétation de mars 2001 (1) et juillet 2003 (2 et 3) et incorpore certains changements concernant 20.7.15. Cette troisième édition constitue une révision mineure. Cette publication doit être lue conjointement avec la CEI 60598-1: Luminaires - Partie 1: Exigences générales et essais. Elle a été établie sur la base de la septième édition (2008) de cette norme.
Svetilke - 2-20. del: Posebne zahteve - Svetlobni nizi (IEC 60598-2-20:2010)
Ta osnutek opredeljuje zahteve za svetlobne nize, nameščene z zaporedno ali vzporedno oziroma v kombinaciji zaporedno/analogno povezanih žarnic za notranjo ali zunanjo uporabo z napetostjo, ki ne presega 250 V.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60598-2-20:2010
01-junij-2010
1DGRPHãþD
SIST EN 60598-2-20:1999
SIST EN 60598-2-20:1999/A1:1999
SIST EN 60598-2-20:1999/A2:2004
Svetilke - 2-20. del: Posebne zahteve - Svetlobni nizi (IEC 60598-2-20:2010)
Luminaires - Part 2-20: Particular requirements - Lighting chains (IEC 60598-2-20:2010)
Luminaires - Partie 2-20: Règles particulières - Guirlandes lumineuses (IEC 60598-2-
20:2010)
Luminaires - Partie 2-20: Règles particulières - Guirlandes lumineuses (CEI 60598-2-
20:2010)
Ta slovenski standard je istoveten z: EN 60598-2-20:2010
ICS:
29.140.40 Svetila Luminaires
SIST EN 60598-2-20:2010 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60598-2-20:2010
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SIST EN 60598-2-20:2010
EUROPEAN STANDARD
EN 60598-2-20
NORME EUROPÉENNE
April 2010
EUROPÄISCHE NORM
ICS 29.140.40 Supersedes EN 60598-2-20:1997 + A1:1998 + corr. Dec.1998 + A2:2004 + corr. Sep.2004
English version
Luminaires -
Part 2-20: Particular requirements -
Lighting chains
(IEC 60598-2-20:2010)
Luminaires - Leuchten -
Partie 2-20: Règles particulières - Teil 2-20: Besondere Anforderungen -
Guirlandes lumineuses Lichtketten
(CEI 60598-2-20:2010) (IEC 60598-2-20:2010)
This European Standard was approved by CENELEC on 2010-04-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60598-2-20:2010 E
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SIST EN 60598-2-20:2010
EN 60598-2-20:2010 - 2 -
Foreword
The text of document 34D/946/FDIS, future edition 3 of IEC 605989-2-20, prepared by SC 34D,
Luminaires, of IEC TC 34, Lamps and related equipment, was submitted to the IEC-CENELEC parallel
vote.
A draft amendment prepared by the Technical Committee CENELEC TC 34Z, Luminaires and associated
equipment and was simultaneously submitted to the formal vote.
The combined texts were approved by CENELEC as EN 60598-2-20 on 2010-04-01.
This European Standard supersedes EN 60598-2-20:1997 + A1:1998 + A2:2004.
This standard is to be used in conjunction with EN 60598-1:2008.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the amendment has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-01-01
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2013-04-01
Annexes ZA and ZB have been added by CENELEC.
_________
Endorsement notice
The text of the International Standard IEC 60598-2-20:2010 was approved by CENELEC as a European
Standard with agreed common modifications as given below.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 61347-1 NOTE Harmonized as EN 61347-1.
__________
COMMON MODIFICATIONS
20.1 Scope
20.1.1 Replace “IEC 60238:1991” by “IEC 60238:2004 + A1:2008”.
20.5 Marking
20.5.1 Amend Item b), 2) to begin as follows:
2) for series-connected lamps other than those in sealed chains, replace .
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SIST EN 60598-2-20:2010
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Replace the note of Item e), by:
NOTE For the purpose of this subclause, a fused lamp is a lamp designed so as to break the circuit in the event
of an overload either by means of a separate fuse incorporated within the lamp or by any other means e.g. a special
filament. Such fuses or special filaments are not considered integral components (see 0.5.1 of EN 60598-1).
20.6 Construction
20.6.1 Replace by:
20.6.1 Edison screw lampholders E14 and E27 shall meet the requirements of
EN 60238:2004.
Edison screw lampholders E5 and E10 and similar small lampholders of the push-in type
shall meet the appropriate requirements of EN 60238:2004 as modified by Annex ZB.
Edison screw lampholders larger than E10 with non-metallic screw threads shall meet the
requirements of 12.1 of EN 60238:2004.
NOTE E10 and small lampholders may have screw threads of insulating material.
In lighting chains fitted with parallel connected lamps, E27 and B22 lampholders with
insulation piercing contacts shall meet the requirements of this section. In addition, E27
lampholders with insulation piercing contacts shall meet the requirements of 12.1 of
EN 60238:2004.
Bayonet lampholders shall meet the requirements of EN 61184.
In lighting chains where non-standardized lamps (e.g. lamps of the push-in type) are used,
the lamps are regarded as parts of the lighting chain and tested accordingly.
20.6.6 Replace by:
20.6.6 Compliance with the mechanical strength requirements of 4.13 of EN 60598-
1:2008 for E14 and E27 lampholders incorporated in lighting chains shall be checked by the
tests given in Clause 15 of EN 60238:2004.
E5 and E10 and similar small lampholders of push-in type shall be checked by the tests
given in Clause 15 of EN 60238:2004 as modified by Annex ZB.
The tests are made on three samples of the lampholder without lamps inserted. After the
test, the relevant compliance requirements of 4.13 of EN 60598-1:2008 shall be met.
20.6.12 Replace by:
20.6.12 The cap, if any, and the lamp bulb glass of replaceable push-in lamps shall not
rotate in relation to the lampholder.
Compliance is checked by applying a torque of 0,025 Nm for 1 min between the lamp bulb
and the lampholder.
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EN 60598-2-20:2010 - 4 -
20.7 Creepage distances and clearances
Replace by:
20.7 Creepage distances and clearances
The provisions of Section 11 of EN 60598-1 apply except that
- for Edison screw lampholders E10, E14 and E27, Clause 17 of EN 60238:2004 applies
- for Edison screw lampholders E5 and similar small lampholders of push-in type,
Clause 17 of EN 60238:2004, as modified by Annex ZB, applies.
20.10 External and internal wiring
20.10.1 Replace by:
20.10.1 Subclause 5.2.2 of EN 60598-1:2008 does not apply. Internal and external cables
of lighting chains, sealed chains and external cables of sealed chains shall not be lighter
than the following:
- for ordinary lighting chains using series-connected lampholders H03VH7-H
- for Class II ordinary lighting chains using parallel-connected H03VV-F or
lampholders H03VVH2-F
- for Class III lighting chains using parallel-connected lampholders H03VVH2-F
and with a maximum rated wattage exceeding 50 W
- for other lighting chains using series-connected lampholders H03RN-F (see NOTE)
(HD 22.8)
- for other lighting chains using parallel-connected lampholders H05RNH2-F or
H05RN-F
(HD 22.4 and
HD 22.8)
- for other lighting chains where the length of cable between H07RN-F
the supply plug and the nearest lampholder exceeds 3 m
for that part of the cable
NOTE HO3RN-F is only suitable for use with the following lampholders: E5, E10, E14 and B15 or similar
miniaturised (small) lampholders.
Internal and external cables of Class III lighting chains with a maximum rated wattage not
exceeding 50 W and the internal conductors of sealed chains may have a cross-sectional area
of less than 0,4 mm² provided that the current-carrying capacity and mechanical properties are
adequate. For sealed chains class III chains, conductors without insulation are accepted,
provided adequate precautions have been taken to ensure compliance with requirements of
5.3.1 of EN 60598-1:2008.
Compliance is checked by inspection, measurement and by calculation.
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The nominal cross-sectional area of the conductors for the cables listed above shall be not less
than one of the following values:
a) 0,5 mm² for lighting chains with E5 or E10 lampholders or similar small lampholders of
push-in type;
b) 0,75 mm² for lighting chains with E14, E27, B15 or B22 lampholders and fitted with series-
connected lamps;
c) 1,5 mm² for lighting chains with E14, E27, B15 or B22 lampholders and fitted with parallel
connected lamps.
20.15 Resistance to heat, fire and tracking
Replace by:
20.15 Resistance to heat, fire and tracking
The provisions of Section 13 of EN 60598-1:2008 apply except that
- for flexible pipes of sealed chains, the test of 13.2.1 is replaced by the test of Clause 8 of
EN 60811-3-1:1995,
- for lampholders, the tests of Clause 13 are replaced by the tests of
• for E14 and E27 lampholders: Clause 20 of EN 60238:2004,
• for E5 and E10 and similar lampholders of the push-in type: Clause 20 of
EN 60238:2004 as modified by Annex ZB.
Figure 1 Delete and replace title by “Figure 1: Not used”.
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SIST EN 60598-2-20:2010
EN 60598-2-20:2010 - 6 -
Figure 3 Replace by:
Dimensions in millimetres
Key
1) Diameter of wooden cylinder
2) Distance between the fixing point of the flexible pipe and the weight prior to commencement of the test
Figure 3 - Example of test device suitable for winding a flexible pipe
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SIST EN 60598-2-20:2010
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Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 60083 - Plugs and socket-outlets for domestic and - -
similar general use standardized in member
countries of IEC
IEC 60227 Series Polyvinyl chloride insulated cables of rated - -
voltages up to and including 450/750 V -
Part 1: General requirements
IEC 60238 2004 Edison screw lampholders EN 60238 2004
+ A1 2008 + corr. January 2005
+ A1 2008
IEC 60245 Series Rubber insulated cables - Rated voltages up - -
to and including 450/750 V -
Part 1: General requirements
IEC 60529 - Degrees of protection provided by enclosures EN 60529 -
(IP Code)
IEC 60598-1 (mod) 2008 Luminaires - EN 60598-1 2008
Part 1: General requirements and tests + A11 2009
IEC 60811-3-1 1985 Common test methods for insulating and EN 60811-3-1 1995
+ A1 1994 sheathing materials of electric cables - + A1 1996
+ A2 2001 Part 3: Methods specific to PVC compounds - + A2 2001
Section 1: Pressure test at high temperature -
Tests for resistance to cracking
IEC 61184 - Bayonet lampholders EN 61184 -
IEC 61347-2-11 2001 Lamp controlgear - EN 61347-2-11 2001
Part 2-11: Particular requirements for + corr. January 2002
miscellaneous electronic circuits used with
luminaires
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EN 60598-2-20:2010 - 8 -
Annex ZB
(normative)
Requirements for Edison screw lampholders E5 and E10
and similar small lampholders of the push-in type
This annex consists of modifications to EN 60238:2004 + A1:2008 to cover Edison screw lampholders E5
and E10 and similar small lampholders of push-in type.
rd
1.1 Add at the end of the 3 paragraph:
It also applies to push-in lampholders, where applicable.
st
9.1 In the 1 line of the test specification add “E5 and” before “E10”.
nd
15.9 Replace the 2 paragraph of the test by:
The backplate of lampholders shall be fixed by means of screws to a rigid flat steel sheet as follows:
- 3 mm screws for lampholders E10;
- 4 mm for lampholders other than E10.
This sheet shall have two drilled and tapped holes at a distance equal to the distance between the axes
of the fixing holes of the backplate. The screws shall be gradually tightened, the maximum torque applied
being
- 0,5 Nm for 3 mm screws, and
- 1,2 Nm for 4 mm screws.
These requirements do not apply to lampholders E5.
_________________
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SIST EN 60598-2-20:2010
IEC 60598-2-20
®
Edition 3.0 2010-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Luminaires –
Part 2-20: Particular requirements – Lighting chains
Luminaires –
Partie 2-20: Règles particulières – Guirlandes lumineuses
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
R
CODE PRIX
ICS 29.140.40 ISBN 2-8318-1079-0
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN 60598-2-20:2010
– 2 – 60598-2-20 © IEC:2010
CONTENTS
FOREWORD.3
20.1 Scope.5
20.2 Normative references .5
20.3 General test requirements .6
20.4 Definitions .6
20.5 Classification of luminaires .6
20.6 Marking .6
20.7 Construction .7
20.8 Creepage distances and clearances.10
20.9 Provisions for earthing .10
20.10 Terminals .10
20.11 External and internal wiring.10
20.12 Protection against electric shock.12
20.13 Endurance tests and thermal tests .16
20.14 Resistance to dust and moisture .17
20.15 Insulation resistance and electric strength.17
20.16 Resistance to heat, fire and tracking .17
Annex A (informative) Tumbling barrel test .18
Bibliography .19
Figure 1 – Example of a suitable connection for lighting chains.14
Figure 2 – Example of test device suitable for checking security of lampholder contacts .15
Figure 3 – Example of test device suitable for winding a flexible pipe.16
Table 1 – Characteristics of the lighting chains .11
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60598-2-20 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LUMINAIRES –
Part 2-20: Particular requirements –
Lighting chains
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,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
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
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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 60598-2-20 has been prepared by subcommittee 34D: Luminaires,
of IEC technical committee 34: Lamps and related equipment
This third edition cancels and replaces the second edition published in 1996, its Amendment 1
(1998), its Amendment 2 (2002) and the interpretation sheets of March 2001 (1) and July 2003
(2 and 3). This third edition is based on the second edition, its Amendments 1 and 2 and the
interpretation sheets of March 2001 (1) and July 2003 (2 and 3) and incorporates some
changes relating to 20.7.15. This third edition constitutes a minor revision.
This publication is intended to be read in conjunction with IEC 60598-1: Luminaires – Part 1:
General requirements and tests. It was established on the basis of the seventh edition (2008)
of that standard.
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The text of this standard is based on the following documents:
FDIS Report on voting
34D/946/FDIS 34D/955/RVD
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.
NOTE In this standard, the following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
The following differences exist in the countries indicated below:
20.11.1: In the USA, the requirements for the cables are different.
A list of all parts of the IEC 60598 series, under the general title: Luminaires, can be found on
the IEC website.
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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60598-2-20 © IEC:2010 – 5 –
LUMINAIRES –
Part 2-20: Particular requirements –
Lighting chains
20.1 Scope
This part of IEC 60598 specifies requirements for lighting chains fitted with series- or parallel-
or a combination of series/parallel-connected incandescent lamps for use either indoors or
outdoors on supply voltages not exceeding 250 V.
NOTE 1 A Christmas tree chain is an example of a lighting chain fitted with series or series/parallel connected lamps.
A chain for illuminating ski-tracks or promenades is an example of a lighting chain fitted with parallel connected
lamps.
NOTE 2 For lighting chains fitted with lampholders of the push-in type, the appropriate requirements of this part of
IEC 60598 apply.
NOTE 3 In some countries, the term "strings" is used instead of "chains".
NOTE 4 For lighting chains with non-standardised lamps (e.g. lamps of the push-in type) the lamps are regarded
as a part of the lighting chain and consequently included in the testing (and thereby in the certificate, if any).
20.2 Normative references
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of
the referenced document (including any amendments) applies.
IEC 60083, Plugs and socket-outlets for domestic and similar general use standardized in
member countries of IEC
IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V
)
1
IEC 60238:2004, Edison screw lampholders
Amendment 1 (2008)
IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including 450/750 V
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60598-1:2008, Luminaires – Part 1: General requirements and tests
IEC 60811-3-1:1985, Common test methods for insulating and sheathing materials of electric
cables – Part 3: Methods specific to PVC compounds – Section One: Pressure test at high
temperature – Tests for resistance to cracking
Amendment 1 (1994)
Amendment 2 (2001)
IEC 61184, Bayonet lampholders
___________
)
1
There exists a consolidated edition 8.1 (2008) that comprises IEC 60238 (2004) and its Amendment 1 (2008).
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IEC 61347-2-11, Safety of lamp controlgear – Part 2-11: Particular requirements for
miscellaneous electronic circuits used with luminaires
20.3 General test requirements
The provisions of section 0 of IEC 60598-1 apply. The tests described in each appropriate
section of IEC 60598-1 shall be carried out in the order listed in this part of IEC 60598.
20.4 Definitions
For the purposes of this document, the definitions given in section 1 of IEC 60598-1 apply
together with the following definitions.
20.4.1
lighting chain
luminaire comprising an assembly of series-connected lampholders, parallel-connected lamp-
holders or series/parallel-connected lampholders and interconnecting insulated conductors
NOTE 1 For lighting chains with non-standardised lamps (e.g. lamps of the push-in type) the lamps are regarded
as part of the chain.
NOTE 2 For lighting chains with non-removable lamps, the lamps are regarded as part of the chain.
NOTE 3 A lighting chain may incorporate control devices (e.g. flasher units, see 20.7.16).
20.4.2
sealed chain
a lighting chain enclosed in a rigid or flexible insulating translucent pipe or tube, sealed at the
ends and having no joints
20.5 Classification of luminaires
Luminaires shall be classified in accordance with the provisions of section 2 of IEC 60598-1
together with the requirements of 20.5.1 and 20.5.2.
NOTE As lighting chains are mandatorily required to be suitable for mounting on normally flammable surfaces they
do not require F marking nor provision of a warning notice.
20.5.1 According to the type of protection against electric shock, lighting chains shall be
classified as Class II or Class III.
20.5.2 According to the degree of protection against dust and moisture, lighting chains for
outdoor use shall be classified as "of rain-proof, splash-proof, jet-proof or watertight
construction".
20.6 Marking
The provisions of section 3 of IEC 60598-1 apply together with the requirements of 20.6.1
and 20.6.2.
20.6.1 The following information shall be marked on the lighting chains.
a) Lighting chains shall be marked with the type reference or the electrical data of the lamps
and with the rated voltage of the complete chain. Where it is impractical to mark this
information on the lighting chain, the information shall be marked on a durable non-
removable sleeve or label fitted to the cable.
b) Lighting chains shall be accompanied by the substance of the following warnings:
1) do not remove or insert lamps while the chain is connected to the supply;
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60598-2-20 © IEC:2010 – 7 –
2) for series-connected lamps, replace failed lamps immediately by lamps of the same
rated voltage and wattage to prevent overheating; this requirement does not apply to
sealed chains;
3) do not connect the chain to the supply while it is in the packing unless the packing has
been adapted for display purposes;
4) for series-connected lamps where fused lamps are used to ensure compliance with
20.13.3 hereafter, do not replace a fused lamp with a non-fused lamp [see item e)].
5) ensure all lampholders are fitted with a lamp.
c) Ordinary lighting chains shall additionally be accompanied by the substance of the following
information:
"FOR INDOOR USE ONLY"
Lighting chains which rely on gaskets to provide the specified degree of protection against
dust and moisture shall additionally be accompanied by the substance of the following
information:
"WARNING – THIS LIGHTING CHAIN MUST NOT
BE USED WITHOUT ALL GASKETS BEING IN PLACE"
d) Lighting chains not intended for interconnection shall in addition be accompanied by the
substance of the following warning:
"Do not connect this chain electrically to another chain."
e) Lighting chains fitted with fused lamps to ensure compliance with 20.13.3 shall be accom-
panied by information indicating the means for identification of fused lamps (see 20.6.3).
NOTE For the purpose of this subclause, a fused lamp is a lamp designed so as to break the circuit in the
event of an overcurrent either by means of a separate fuse incorporated within the lamp or by any other means
e.g. a special filament.
f) Lighting chains with non-standardised lamps shall be accompanied by information
indicating that replacement lamps must be of the same type as delivered or of a type
specified by the manufacturer (see 20.6.2).
g) Lighting chains provided with non-replaceable lamps shall be accompanied by the
information that the lamps are not replaceable.
The information required under items b)3), f) and g) shall be indicated on the packing.
20.6.
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