1、BRITISH STANDARD BS EN 60238:2004Edison screw lampholdersICS 29.140.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58+ A2:2011Incorporating corrige
2、ndum January 2005National forewordThis British Standard is the UK implementation of EN 60238:2004+A2:2011, incorporating corrigendum January 2005. It is identical with IEC 60238:2004, incorporating amendments 1:2008 and 2:2011. It supersedes BS EN 60238:2004+A1:2008 which will be withdrawn on 30 Mar
3、ch 2014.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to IEC text carry the number of the IEC amendment. For example, text altered by IEC amendment 1 is indicated by !“.The UK participation in its preparation was entrusted b
4、y Technical Committee CPL/34, Lamps and related equipment, to Subcommittee CPL/34/2, Lamp caps and holders.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users
5、are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 60238:2004+A2:2011This British Standard was published under the authority of the Standards Policy and Strategy Committee on 20 January 2005 BSI 2011Amendments/corrigenda
6、 issued since publicationDate Comments 30 June 2009 Implementation of IEC amendment 1:2008 with CENELEC endorsement A1:200831 May 2011 Implementation of IEC amendment 2:2011 with CENELEC endorsement A2:2011ISBN 978 0 580 70358 4EUROPEAN STANDARD EN 60238:2004+ANORME EUROPENNE EUROPISCHE NORM CENELEC
7、 European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwi
8、de for CENELEC members. Ref. No. EN 60238:2004 E ICS 29.140.10 Supersedes EN 60238:1998 + A1:1999 + A2:2002Incorporates Corrigendum January 2005English version Edison screw lampholders (IEC 60238:2004) Douilles vis Edison pour lampes (CEI 60238:2004) Lampenfassungen mir Edisongewinde (IEC 60238:2004
9、) This European Standard was approved by CENELEC on 2004-10-01. 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 bibliographica
10、l 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 CE
11、NELEC 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ire
12、land, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 2 April 2011 Foreword The text of document 34B/1151/FDIS, future edition 8 of IEC 60238, prepared by SC 34B, Lamp caps and holders, of IEC TC 3
13、4, Lamps and related equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60238 on 2004-10-01. This European Standard supersedes EN 60238:1998 + corrigendum February 1999 + A1:1999 + A2:2002 + A2:2002/corrigendum July 2003. In this edition the new requirements
14、for creepage distances and clearances have been adopted which are currently circulated by IEC/SC 34D to amend the EN 60598 family of luminaire standards. Additionally guidances for requirements in EN 61058-1 applicable to switches in lampholders (see Annex B) and for special requirements in applianc
15、e standards (see Annex C) have been included. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2005-07-01 latest date by which the national standards conflicting with the EN ha
16、ve to be withdrawn (dow) 2007-10-01 Annex ZA has been added by CENELEC. The contents of the corrigendum of January 2005 have been included in this copy. _ Endorsement notice The text of the International Standard IEC 60238:2004 was approved by CENELEC as a European Standard without any modification.
17、 _ Foreword to amendment A1 The text of document 34B/1381/FDIS, future amendment 1 to IEC 60238:2004, 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 was approved by CENELEC as amendment A1 to EN 60238:2004 on 2
18、008-08-01. 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) 2009-05-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (d
19、ow) 2011-08-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of amendment 1:2008 to the International Standard IEC 60238:2004 was approved by CENELEC as an amendment to the European Standard without any modification. _ BS EN 60238:2004+A2:2011EN 60238:2004+A2:2011 (E)Page2Forewor
20、d to amendment A2 The text of document 34B/1577/FDIS, future amendment 2 to IEC 60238:2004, 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 was approved by CENELEC as amendment A2 to EN 60238:2004 on 2011-03-30.
21、 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
22、 at national level by publication of an identical national standard or by endorsement (dop) 2011-12-30 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2014-03-30 _ Endorsement notice The text of amendment 2:2011 to the International Standard IEC
23、60238:2004 was approved by CENELEC as an amendment to the European Standard without any modification. _ BS EN 60238:2004+A2:2011EN 60238:2004+A2:2011 (E)Page3CONTENTS 1 General 6 2 Definitions 8 3 General requirement.11 4 General conditions for tests 12 5 Standard ratings .13 6 Classification 14 7 M
24、arking 15 8 Dimensions.17 9 Protection against electric shock.19 10 Terminals .21 11 Provision for earthing25 12 Construction .26 13 Switched lampholders .31 14 Moisture resistance, insulation resistance and electric strength .33 15 Mechanical strength35 16 Screws, current-carrying parts and connect
25、ions 39 17 Creepage distances and clearances41 18 Normal operation 44 19 General resistance to heat 45 20 Resistance to heat, fire and tracking .47 21 Resistance to excessive residual stresses (season cracking) and to rusting 50 Annex A (normative) Season cracking/corrosion test .51 Annex B (informa
26、tive) Guidance for requirements in IEC 61058-1 applicable to switches in lampholders (see 13.2)53 Annex C (informative) Guidance for special requirements in appliance standards Household and similar electrical appliances.55 Annex ZA (normative) Normative references to international publications with
27、 their corresponding European publications 77 Figure 1a Nipple thread for lampholders. Basic profile and design profile for the nut and for the screw 57 Figure 1b Nipple thread for lampholders. Basic profile and design profile for the nut and for the screw 58 Figure 2a Gauges for metric ISO thread f
28、or nipples 59 Figure 2b Gauges for ISO standard pipe thread for nipples .60 Figure 3 Gauge for holes for backplate lampholder screws .61 Figure 4 Normal operation test apparatus .62 Figure 5 Test caps for the test of clause 18 63 Figure 6 Torque apparatus .64 Figure 7 Tumbling barrel 65 BS EN 60238:
29、2004+A2:2011EN 60238:2004+A2:2011 (E)Page4Figure 8 Impact-test apparatus.66 Figure 8a Mounting support66 Figure 9 Pressure apparatus 67 Figure 10 Ball-pressure test apparatus .67 Figure 11 Test cap for the tests of 14.4 and 19.3 68 Figure 12 Bending apparatus69 Figure 13 Test cap A and test cap B fo
30、r lampholders E14 .70 Figure 13 Test cap A and test cap B for lampholders E14 (continued).71 Figure 14 Test cap for lampholders E27 .72 Figure 15 Test cap for lampholders E40 .73 Figure 16 Standard test finger (according to IEC 60529) .74 Figure 17 Clarification of some definitions 75 Figure 18 Prep
31、aration of specimens for the needle-flame test of 20.4 .76 Table 1 Thickness of screw shells and contacts18 Table 2 Minimum effective screw lengths18 Table 3 Dimensions of threaded entries and set screws19 Table 4 Minimum dimensions of pillar-type terminals 23 Table 5 Minimum dimensions of screw-typ
32、e terminals.23 Table 6 Pull and torque values .29 Table 7 Insertion torque .31 Table 8 Minimum and maximum removal torques .31 Table 9 Test cap dimensions35 Table 10 Heights of fall 37 Table 11 Maximum deformation values.38 Table 12 Torque values40 Table 13a Minimum distances for a.c. (50/60 Hz) sin
33、usoidal voltages Impulse withstand category II .42 Table 13b Minimum distances for a.c. (50/60 Hz) sinusoidal voltages Impulse withstand category III 43 Table 14 Minimum distances for non-sinusoidal pulse voltages .43 Table 15 Heating cabinet temperatures 46 Table A.1 pH adjustment 51 BS EN 60238:20
34、04+A2:2011EN 60238:2004+A2:2011 (E)Page583206 4002:CEI 5 EDISON SCREW LAMPHOLDERS 1 General 1.1 Scope This International Standard applies to lampholders with Edison thread E14, E27 and E40, designed for connection to the supply of lamps and semi-luminaires*only. It also applies to switched-lampholde
35、rs for use in a.c. circuits only, where the working voltage does not exceed 250 V r.m.s. This standard also applies to lampholders with Edison thread E5 designed for connection to the supply mains of series connected lamps, with a working voltage not exceeding 25 V, to be used indoors, and to lampho
36、lders with Edison thread E10 designed for connection to the supply mains of series connected lamps, with a working voltage not exceeding 60 V, to be used indoors or outdoors. It also applies to lampholders E10 for building-in, for the connection of single lamps to the supply. These lampholders are n
37、ot intended for retail sale. As far as it reasonably applies, this standard also covers lampholders other than lampholders with Edison thread designed for connection of series-connected lamps to the supply. NOTE This type of lampholder is for example used in Christmas tree lighting chains. As far as
38、 it reasonably applies, this standard also covers adapters. This standard also covers lampholders which are, wholly or partly, integral with a luminaire or intended to be built into appliances. It covers the requirements for the lampholder only. For all other requirements, such as protection against
39、 electric shock in the area of the terminals or of the lamp cap, the requirements of the relevant appliance standard shall be observed and tested after building into the appropriate equipment, when that equipment is tested according to its own standard. Such lampholders as well as lampholders provid
40、ed with a snap-on outer shell, for use by luminaire manufacturers only, are not for retail sale. This standard applies to lampholders to be used indoors or outdoors in residential as well as in industrial lighting installations. It also applies to candle lampholders. In locations where special condi
41、tions prevail, as for street lighting, on board ships, in vehicles and in hazardous locations, e.g. where explosions are liable to occur, special constructions may be required. NOTE 1 This standard does not apply to three-light lampholders E26d. NOTE 2 This standard is based on the following data re
42、lative to lamps for general lighting service: caps E14 are used for lamps with a current not exceeding 2 A; caps E27 are used for lamps with a current not exceeding 4 A; caps E40 are used for lamps with a current not exceeding 16 A. NOTE 3 If the nominal voltage of the supply does not exceed 130 V,
43、the maximum current for caps E40 is 32 A (see 4.5 and 5.3). NOTE 4 Where lampholders are used in luminaires, their maximum operating temperatures are specified in IEC 60598. _ *Requirements for lampholders suitable for semi-luminaires are under consideration. BS EN 60238:2004+A2:2011EN 60238:2004+A2
44、:2011 (E)Page660238 IEC:2004 6 1.2 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) ap
45、plies. NOTE With regard to IEC 60598-1, the references cited in this document are liable to change. IEC 60061 (all parts), 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 interchang
46、eability and safety Part 1: Lamp caps 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 60068-2-20:19
47、79, Environmental testing Part 2: Tests Test T: Soldering IEC 60068-2-32:1975, Environmental testing Part 2: Tests Test Ed: Free fall IEC 60068-2-75:1997, Environmental testing Part 2: Tests Test Eh: Hammer tests IEC 60112:1979, Method for determining the comparative and the proof tracking indices o
48、f solid insulating materials under moist conditions IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V IEC 60245 (all parts), Rubber insulated cables Rated voltages up to and including 450/750 V IEC 60335-1:2001, Household and similar electrica
49、l appliances Safety Part 1: General requirements IEC 60352-1:1997, Solderless connections Part 1: Wrapped connections General require-ments, test methods and practical guidance IEC 60399, Barrel thread for lampholders with shade holder ring IEC 60417-DB:2002*)Graphical symbols for use on equipment IEC 60529:1989, Degrees of protection provided by enclosures (IP Code) *)Amendment 1 (
