Miscellaneous lampholders - Part 1: General requirements and tests (IEC 60838-1:2016)

This part of IEC 60838 applies to lampholders of miscellaneous types intended for building-in
(to be used with general purpose light sources, projection lamps, floodlighting lamps and
street-lighting lamps with caps as listed in Annex A) and the methods of test to be used in
determining the safe use of lamps in lampholders.
This part of IEC 60838 also covers lampholders which are integral with a luminaire. It covers
the requirements for the lampholder only.
This part of IEC 60838 also covers lampholders integrated in an outer shell and dome similar
to Edison screw lampholders. Such lampholders are further tested in accordance with the
relevant clauses of IEC 60238.
Requirements for lampholders for tubular fluorescent lamps, Edison screw lampholders and
bayonet lampholders are covered by separate standards.

Sonderfassungen - Teil 1: Allgemeine Anforderungen und Prüfungen

Douilles diverses pour lampes - Partie 1: Exigences générales et essais

L'IEC 60838-1:2016 s'applique aux douilles de types divers prévues pour être incorporées (et destinées à être utilisées avec les sources lumineuses à usage général, les lampes de projection, les lampes d'illumination et les lampes pour l'éclairage public dotées de culots et répertoriées à titre d'exemple dans l'Annexe A) ainsi qu'aux méthodes d'essai à utiliser pour démontrer la sécurité d'utilisation des lampes dans les douilles. Cette cinquième édition annule et remplace la quatrième édition parue en 2004, l'Amendement 1:2008 et l'Amendement 2:2011. Cette édition constitue une révision technique. Les modifications techniques majeures dans la présente édition par rapport à l'édition précédente incluent l'introduction de nouvelles exigences ou d'exigences révisées concernant les tensions d'amorçage à contact simple ou double, les culots d'essai en acier et les culots d'essai en laiton ainsi qu'une Annexe E répertoriant les exigences/articles nécessitant la réalisation de nouveaux essais sur les produits.

Razni okovi za žarnice in sijalke - 1. del: Splošne zahteve in preskusi (IEC 60838-1:2016)

Ta del standarda IEC 60838 se uporablja za razne okove za sijalke in žarnice, ki so namenjeni vgradnji (uporaba s svetlobnimi viri za splošno uporabo, projekcijskimi sijalkami in žarnicami, reflektorskimi sijalkami in žarnicami ter sijalkami in žarnicami za ulično razsvetljavo z vznožki, kot je navedeno v dodatku A) in metode preskusov, ki se uporabljajo za določevanje varne uporabe sijalk in žarnic ter okovov za sijalke in žarnice.
Ta del standarda IEC 60838 zajema tudi okove, ki so sestavni del svetilke. Zajema samo zahteve za okove za sijalke in žarnice.
Ta del standarda IEC 60838 zajema tudi okove, vgrajene v zunanjo lupino in kupolo, podobne okovom z Edisonovim navojem. Takšni okovi za sijalke in žarnice se dodatno preskušajo na podlagi primerov, opisanih v IEC 60238.
Zahteve za okove za cevne fluorescentne sijalke in žarnice, okove z Edisonovim navojem in okove z bajonetnim navojem so zajete v ločenih standardih.

General Information

Status
Published
Publication Date
16-May-2017
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
03-May-2017
Due Date
08-Jul-2017
Completion Date
17-May-2017

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SLOVENSKI STANDARD
SIST EN 60838-1:2017
01-junij-2017
1DGRPHãþD
SIST EN 60838-1:2005
SIST EN 60838-1:2005/A1:2008
SIST EN 60838-1:2005/A2:2011

Razni okovi za žarnice in sijalke - 1. del: Splošne zahteve in preskusi (IEC 60838-

1:2016)

Miscellaneous lampholders - Part 1: General requirements and tests (IEC 60838-1:2016)

Ta slovenski standard je istoveten z: EN 60838-1:2017
ICS:
29.140.10 Grla in držala žarnic Lamp caps and holders
SIST EN 60838-1:2017 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 60838-1:2017
---------------------- Page: 2 ----------------------
SIST EN 60838-1:2017
EUROPEAN STANDARD EN 60838-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2017
ICS 29.140.10 Supersedes EN 60838-1:2004
English Version
Miscellaneous lampholders -
Part 1: General requirements and tests
(IEC 60838-1:2016)

Douilles diverses pour lampes - Partie 1: Exigences Sonderfassungen - Teil 1: Allgemeine Anforderungen und

générales et essais Prüfungen
(IEC 60838-1:2016) (IEC 60838-1:2016)

This European Standard was approved by CENELEC on 2016-06-23. 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 CEN-CENELEC

Management Centre 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 CEN-CENELEC Management Centre 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 60838-1:2017 E
---------------------- Page: 3 ----------------------
SIST EN 60838-1:2017
EN 60838-1:2017
European foreword

The text of document 34B/1850A/FDIS, future edition 5 of IEC 60838-1, prepared by SC 34B “Lamp

caps and holders” of IEC/TC 34 “Lamps and related equipment” was submitted to the IEC-CENELEC

parallel vote and approved by CENELEC as EN 60838-1:2017.
The following dates are fixed:
(dop) 2017-10-28
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-04-28
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60838-1:2004.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such

patent rights.

This document has been prepared under a mandate given to CENELEC by the European Commission

and the European Free Trade Association.
Endorsement notice

The text of the International Standard IEC 60838-1:2016 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60061-1 NOTE Harmonized as EN 60061-1.
IEC 60061-4 NOTE Harmonized as EN 60061-4.
IEC 60068-2-20 NOTE Harmonized as EN 60068-2-20.
---------------------- Page: 4 ----------------------
SIST EN 60838-1:2017
EN 60838-1:2017
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:

www.cenelec.eu
Publication Year Title EN/HD Year
IEC 60061 Series Lamp caps and holders together with EN 60061 Series
gauges for the control of interchangeability
and safety
IEC 60061-2 - Lamp caps and holders together with EN 60061-2 -
gauges for the control of interchangeability
and safety -
Part 2: Lampholders
IEC 60061-3 - Lamp caps and holders together with EN 60061-3 -
gauges for the control of interchangeability
and safety -
Part 3: Gauges
IEC 60068-2-75 2014 Environmental testing - EN 60068-2-75 2014
Part 2-75: Tests - Test Eh: Hammer tests
2003 Method for the determination of the proof EN 60112 2003
IEC 60112
and the comparative tracking indices of
solid insulating materials
+A1 2009 +A1 2009
IEC 60227 Series Polyvinyl chloride insulated cables of rated - -
voltages up to and including 450/750 V
IEC 60238 - Edison screw lampholders EN 60238 -
IEC 60245 Series Rubber insulated cables - Rated voltages - -
up to and including 450/750 V
IEC 60352-1 - Solderless connections - EN 60352-1 -
Part 1: Wrapped connections - General
requirements, test methods and practical
guidance
IEC 60399 - Barrel thread for lampholders with shade EN 60399 -
holder ring
IEC 60417-DB - Graphical symbols for use on equipment - -
---------------------- Page: 5 ----------------------
SIST EN 60838-1:2017
EN 60838-1:2017
Publication Year Title EN/HD Year
1989 Degrees of protection provided by EN 60529 1991
IEC 60529
enclosures (IP Code) + corr. May 1993
+A1 1999 +A1 2000
+A2 2013 +A2 2013
IEC 60598-1 (mod) 2014 Luminaires - EN 60598-1 2015
Part 1: General requirements and tests
IEC 60664-1 - Insulation coordination for equipment EN 60664-1 -
within low-voltage systems -
Part 1: Principles, requirements and tests
IEC 60695-2-11 - Fire hazard testing - EN 60695-2-11 -
Part 2-11: Glowing/hot-wire based test
methods - Glow-wire flammability test
method for end-products (GWEPT)
IEC 60695-11-5 - Fire hazard testing - EN 60695-11-5 -
Part 11-5: Test flames - Needle-flame test
method - Apparatus, confirmatory test
arrangement and guidance
ISO 1456 - Metallic and other inorganic coatings - EN ISO 1456 -
Electrodeposited coatings of nickel, nickel
plus chromium, copper plus nickel and of
copper plus nickel plus chromium
ISO 2081 - Metallic and other inorganic coatings - EN ISO 2081 -
Electroplated coatings of zinc with
supplementary treatments on iron or steel
ISO 2093 - Electroplated coatings of tin; Specification - -
and test methods
ISO 4046-4 2002 Paper, board, pulps and related terms - - -
Vocabulary - Part 4: Paper and board
grades and converted products
---------------------- Page: 6 ----------------------
SIST EN 60838-1:2017
IEC 60838-1
Edition 5.0 2016-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Miscellaneous lampholders –
Part 1: General requirements and tests
Douilles diverses pour lampes –
Partie 1: Exigences générales et essais
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.10 ISBN 978-2-8322-3356-6

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: 7 ----------------------
SIST EN 60838-1:2017
– 2 – IEC 60838-1:2016 © IEC 2016
CONTENTS

FOREWORD ......................................................................................................................... 3

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

2 Normative references ..................................................................................................... 5

3 Terms and definitions .................................................................................................... 6

4 General requirement ...................................................................................................... 9

5 General conditions for tests ........................................................................................... 9

6 Classification ............................................................................................................... 10

7 Marking ....................................................................................................................... 11

8 Protection against electric shock .................................................................................. 13

9 Terminals .................................................................................................................... 13

10 Provision for earthing ................................................................................................... 15

11 Construction ................................................................................................................ 16

12 Moisture resistance, insulation resistance and electric strength .................................... 17

13 Mechanical strength ..................................................................................................... 19

14 Screws, current-carrying parts and connections ............................................................ 20

15 Creepage distances and clearances ............................................................................. 20

16 Endurance ................................................................................................................... 23

17 Resistance to heat and fire .......................................................................................... 24

18 Resistance to excessive residual stresses (season cracking) and to rusting .................. 27

Annex A (informative) Lampholders covered by this standard.............................................. 29

Annex B (normative) Suitable metals .................................................................................. 31

Annex C (normative) Season cracking/corrosion test .......................................................... 32

Annex D (normative) Pendulum impact test apparatus ........................................................ 34

Annex E (informative) Schedule of amended clauses and subclauses containing more

serious/ critical requirements which require products to be retested ..................................... 36

Bibliography ....................................................................................................................... 37

Figure 1 – Ball-pressure test apparatus ............................................................................... 25

Figure D.1 – Impact test apparatus ...................................................................................... 34

Figure D.2 – Mounting fixture .............................................................................................. 35

Table 1 – Minimum values of insulation resistance............................................................... 18

Table 2 – Height of fall ........................................................................................................ 19

Table 2a – Minimum distances for AC (50 Hz/60 Hz) sinusoidal voltages − Impulse

withstand category II ........................................................................................................... 21

Table 2b – Minimum distances for AC (50 Hz/60 Hz) sinusoidal voltages − Impulse

withstand category III .......................................................................................................... 22

Table 3 – Minimum distances for non-sinusoidal pulse voltages ........................................... 22

Table A.1 – Lampholders covered by this standard .............................................................. 29

Table C.1 – Test solution .................................................................................................... 32

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SIST EN 60838-1:2017
IEC 60838-1:2016 © IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MISCELLANEOUS LAMPHOLDERS –
Part 1: General requirements and tests
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 60838-1 has been prepared by subcommittee 34B: Lamp caps and

holders, of IEC technical committee 34: Lamps and related equipment.

This fifth edition cancels and replaces the fourth edition published in 2004, Amendment

1:2008 and Amendment 2:2011. This edition constitutes a technical revision.

The significant technical changes in this edition with respect to the previous edition include

the introduction of new or revised requirements for single and dual contact ignition voltages,

steel test caps and brass test caps and an Annex E listing amended requirements/clauses

which require products to be retested.
---------------------- Page: 9 ----------------------
SIST EN 60838-1:2017
– 4 – IEC 60838-1:2016 © IEC 2016
The text of this standard is based on the following documents:
FDIS Report on voting
34B/1850A/FDIS 34B/1856/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.

A list of all parts in the IEC 60838 series, published under the general title Miscellaneous

lampholders, can be found on the IEC website.
In this standard, the following type is used:
– compliance statements: in italic 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.
---------------------- Page: 10 ----------------------
SIST EN 60838-1:2017
IEC 60838-1:2016 © IEC 2016 – 5 –
MISCELLANEOUS LAMPHOLDERS –
Part 1: General requirements and tests
1 Scope

This part of IEC 60838 applies to lampholders of miscellaneous types intended for building-in

(to be used with general purpose light sources, projection lamps, floodlighting lamps and

street-lighting lamps with caps as listed in Annex A) and the methods of test to be used in

determining the safe use of lamps in lampholders.

This part of IEC 60838 also covers lampholders which are integral with a luminaire. It covers

the requirements for the lampholder only.

This part of IEC 60838 also covers lampholders integrated in an outer shell and dome similar

to Edison screw lampholders. Such lampholders are further tested in accordance with the

relevant clauses of IEC 60238.

Requirements for lampholders for tubular fluorescent lamps, Edison screw lampholders and

bayonet lampholders are covered by separate standards.
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 (all parts), Lamp caps and holders together with gauges for the control of

interchangeability and safety (available at http://std.iec.ch/iec60061)
IEC 60061-2, Lamp caps and holders together with gauges for the control of
interchangeability and safety – Part 2: Lampholders
IEC 60061-3, Lamp caps and holders together with gauges for the control of
interchangeability and safety – Part 3: Gauges

IEC 60068-2-75:2014, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests

IEC 60112:2003, Method for the determination of the proof and the comparative tracking

indices of solid insulating materials
IEC 60112:2003/AMD1:2009

IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including

450/750 V
IEC 60238, Edison screw lampholders

IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including

450/750 V
---------------------- Page: 11 ----------------------
SIST EN 60838-1:2017
– 6 – IEC 60838-1:2016 © IEC 2016

IEC 60352-1, Solderless connections – Part 1: Wrapped connections – General requirements,

test methods and practical guidance
IEC 60399, Barrel thread for lampholders with shade holder ring

IEC 60417, Graphical symbols for use on equipment (available at http://www.graphical-

symbols.info/equipment)
IEC 60529:1989, Degrees of protection provided by enclosures (IP code)
IEC 60529:1989/AMD1:1999
IEC 60529:1989/AMD2:2013
IEC 60598-1:2014, Luminaires – Part 1: General requirements and tests

IEC 60664-1, Insulation co-ordination for equipment within low-voltage systems – Part 1:

Principles, requirements and tests

IEC 60695-2-11, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –

Glow-wire flammability test method for end products (GWEPT)

IEC 60695-11-5, Fire hazard testing – Part 11-5: Test flames – Needle-flame test method –

Apparatus, confirmatory test arrangement and guidance

ISO 1456, Metallic and other inorganic coatings – Electrodeposited coatings of nickel, nickel

plus chromium, copper plus nickel and of copper plus nickel plus chromium

ISO 2081, Metallic and other inorganic coatings – Electroplated coatings of zinc with

supplementary treatments on iron or steel
ISO 2093, Electroplated coatings of tin – Specification and test methods

ISO 4046-4:2002, Paper, board, pulps and related terms – Vocabulary – Part 4: Paper and

board grades and converted products
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
rated voltage

voltage declared by the manufacturer to indicate the highest working voltage for which the

lampholder is intended
3.2
working voltage

highest r.m.s. voltage that may occur across any insulation, transients being disregarded,

both when the lamp is operating under normal conditions and when the lamp is removed

3.3
rated current

current declared by the manufacturer to indicate the highest current for which the lampholder

is intended
___________

A consolidated version of this publication exists, comprising IEC 60529:1989, IEC 60529:1989/AMD1:1999 and

IEC 60529:1989/AMD2:2013.
---------------------- Page: 12 ----------------------
SIST EN 60838-1:2017
IEC 60838-1:2016 © IEC 2016 – 7 –
3.4
lampholder for building-in

lampholder designed to be built into a luminaire, an additional enclosure or the like

3.4.1
unenclosed lampholder

lampholder for building-in so designed that it requires additional means, for example

enclosures, to meet the requirements of this standard with regard to protection against

electric shock
3.4.2
enclosed lampholder

lampholder for building-in so designed that it fulfils on its own the requirements of this

standard with regard to protection against electric shock
3.5
rated operating temperature
highest temperature for which the lampholder is designed
3.6
rated pulse voltage
highest peak value of pulse voltages the holder is able to withstand
3.7
lamp connector

set of contacts specially designed to provide for electrical contact but not supporting the lamp

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 specimens submitted by the manufacturer or

responsible vendor for the purpose of a type test
3.10
live part
conductive part which may cause an electric shock
3.11
impulse withstand category
numeral defining a transient overvoltage condition
Note 1 to entry: Impulse withstand categories I, II, III and IV are used.
a) Purpose of classification of impulse withstand categories

Impulse withstand categories are to distinguish different degrees of availability of equipment with regard to

required expectations on continuity of service and on an acceptable risk of failure.

By selection of impulse withstand levels of equipment, insulation co-ordination can be achieved in the whole

installation reducing the risk of failure to an acceptable level providing a basis for overvoltage control.

A higher characteristic numeral of an impulse withstand category indicates a higher specific impulse withstand

of the equipment and offers a wider choice of methods for overvoltage control.

The concept of impulse withstand categories is used for equipment energized directly from the mains.

b) Description of impulse withstand categories

Equipment of impulse withstand category I is equipment which is intended to be connected to the fixed

electrical installations of buildings. Protective means are taken outside the equipment – either in the fixed

---------------------- Page: 13 ----------------------
SIST EN 60838-1:2017
– 8 – IEC 60838-1:2016 © IEC 2016

installation or between the fixed installation and the equipment – to limit transient overvoltages to the specific

level.

Equipment of impulse withstand category II is equipment to be connected to the fixed electrical installations of

buildings.

Equipment of impulse withstand category III is equipment which is part of the fixed electrical installations and

other equipment where a higher degree of availability is expected.

Equipment of impulse withstand category IV is for use at or in the proximity of the origin of the electrical

installations of buildings upstream of the main distribution board.
3.12
primary circuit
circuit which is directly connected to the AC mains supply

Note 1 to entry: It includes, for example, the means for connection to the AC mains supply, the primary windings

of transformers, motors and other loading devices.
3.13
secondary circuit

circuit which has no direct connection to a primary circuit and derives its power from a

transformer, converter or equivalent isolation device, or from a battery

Note 1 to entry: Exception: autotransformers. Although having direct connection to a primary circuit, the tapped

part of them is also deemed to be a secondary circuit as defined above.

Note 2 to entry: Mains transients in such a circuit are attenuated by the corresponding primary windings. Also

inductive ballasts reduce the mains transient voltage height. Therefore, components located after a primary circuit

or after an inductive ballast can be suited for an impulse withstand category of one step lower, i.e. for impulse

withstand category II.
3.14
basic insulation

insulation applied to live parts to provide basic protection against electric shock

Note 1 to entry: Basic insulation does not necessarily include insulation used exclusively for functional purposes.

3.15
supplementary insulation

independent insulation applied in addition to basic insulation in order to provide protection

against electric shock in the event of a failure of basic insulation
3.16
double insulation
insulation comprising both basic insulation and supplementary insulation
3.17
reinforced insulation

single insulation system applied to live parts, which provides a degree of protection against

electric shock equivalent to double insulation under the conditions specified

Note 1 to entry: The term "insulation system" does not imply that the insulation shall be one homogeneous piece.

It may comprise several layers which cannot be tested singly as supplementary or basic insulation.

3.18
enclosed reinforced insulated lampholder

lampholder for building-in so designed that on its own it fulfils the requirements for double or

reinforced insulated parts in class II applications
3.19
partly reinforced insulated lampholder

lampholder for building-in, so designed that some parts of the lampholder require additional

means to fulfil the requirements with regard to double or reinforced insulation

Note 1 to entry: In some cases, the dimensions might be achieved only after mounting into the luminaire.

---------------------- Page: 14 ----------------------
SIST EN 60838-1:2017
IEC 60838-1:2016 © IEC 2016 – 9 –
3.20
polarized lampholder

lampholder for building-in, specially designed for asymmetric rated pulse voltages, where the

rated ignition voltage (higher rated pulse voltage) is designated to a fixed contact

3.21
single contact ignition voltage
ignition voltage which appears on one contact of the lampholder only
3.22
dual contact ignition voltage
ignition voltage which is split between the two contacts of the lampholder
4 General requirement

Lampholders shall be so designed and constructed that in normal use they function reliably

and cause no danger to persons or surroundings.
In general, compliance is checked by carrying out all the tests specified.
5 General conditions for tests
5.1 Tests according to this standard are type tests.

NOTE 1 The requirements and tolerances permitted by the standard are related to testing of type test sample

submitted for that purpose. Compliance of type test sample does not ensure compliance of the whole production of

a manufacturer with this safety standard. Conformity of production is the responsibility of the manufacturer and can

inclu
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Questions, Comments and Discussion

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