EN 62208-2011 en Empty enclosures for low-voltage switchgear and controlgear assemblies - General requirements《低压开关设备和控制设备组件的空外壳 一般要求》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationEmpty enclosures for low-voltage switchgear and controlgear assemblies General requirementsBS EN 62208:2011National forewordThis British Standard is the UK implementation of EN 6

2、2208:2011. It is identi-cal to IEC 62208:2011. It supersedes BS EN 62208:2003, which will be with-drawn on 23 September 2014.The UK participation in its preparation was entrusted by Technical CommitteePEL/17, Switchgear, controlgear, and HV-LV co-ordination, to SubcommitteePEL/17/3, Low voltage swit

3、chgear and controlgear assemblies.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2011ISBN 978 0 580 65631 6

4、ICS 29.130.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 30 November 2011.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 6

5、2208:2011EUROPEAN STANDARD EN 62208 NORME EUROPENNE EUROPISCHE NORM October 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 201

6、1 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62208:2011 E ICS 29.130.20 Supersedes EN 62208:2003English version Empty enclosures for low-voltage switchgear and controlgear assemblies - General requirements (IEC 62208:2011) En

7、veloppes vides destines aux ensembles dappareillage basse tension - Exigences gnrales (CEI 62208:2011) Leergehuse fr Niederspannungs-Schaltgertekombinationen - Allgemeine Anforderungen (IEC 62208:2011) This European Standard was approved by CENELEC on 2011-09-23. CENELEC members are bound to comply

8、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 Ma

9、nagement 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 t

10、he 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 Ne

11、therlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 62208:2011EN 62208:2011 - 2 - Foreword The text of document 17D/442/FDIS, future edition 2 of IEC 62208, prepared by SC 17D, “Low-voltage switchgear and controlgear assemblies“,

12、 of IEC TC 17, “Switchgear and controlgear“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62208:2011. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorse

13、ment (dop) 2012-06-23 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2014-09-23 This document supersedes EN 62208:2003. EN 62208:2011 constitutes a technical revision and includes the following significant technical changes with respect to EN 622

14、08:2003: consideration of the restructured series of standards EN 61439; alignment of test procedures with the newest relevant standards. 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 respons

15、ible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62208:2011 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 indi

16、cated: IEC 60216 series NOTE Harmonized in EN 60216 series. IEC 60670 series NOTE Harmonized in EN 60670 series. IEC/TR 60890 NOTE Harmonized as CLC/TR 60890. IEC 61000-5-7:2001 NOTE Harmonized as EN 61000-5-7:2001 (not modified). IEC 61439 series NOTE Harmonized in EN 61439 series. BS EN 62208:2011

17、- 3 - EN 62208:2011 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 refe

18、rences, 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 60068-2-2 2007 Environmental testing - Par

19、t 2-2: Tests - Test B: Dry heat EN 60068-2-2 2007 IEC 60068-2-11 1981 Environmental testing - Part 2: Tests - Test Ka: Salt mist EN 60068-2-11 1999 IEC 60068-2-30 2005 Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle) EN 60068-2-30 2005 IEC 60085 2007 Electric

20、al insulation - Thermal evaluation and designation EN 60085 2008 IEC 60529 1989 Degrees of protection provided by enclosures (IP Code) EN 60529 + corr. May 1991 1993 IEC 60695-2-10 2000 Fire hazard testing - Part 2-10: Glowing/hot-wire based test methods - Glow-wire apparatus and common test procedu

21、re EN 60695-2-10 2001 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 EN 60695-2-11 2001 IEC 61439-1 2011 Low-voltage switchgear and controlgear assemblies - Part 1: General rules EN 61439-1 2011 IEC 62262

22、 2002 Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code) EN 62262 2002 ISO 178 2001 Plastics - Determination of flexural properties EN ISO 178 2003 ISO 179 Series Plastics - Determination of Charpy impact properties EN ISO 179 Series I

23、SO 2409 2007 Paints and varnishes - Cross-cut test EN ISO 2409 2007 ISO 4628-3 2003 Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 3: Assessment of degree of rusting EN ISO 4628-3 20

24、03 ISO 4892-2 + A1 2006 2009 Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps EN ISO 4892-2 + A1 2006 2009 ISO 11469 2000 Plastics - Generic identification and marking of plastic products EN ISO 11469 2000 BS EN 62208:2011 2 62208 IEC:2011 CONTENTS 1 Scope . 6 2 N

25、ormative references . 6 3 Terms and definitions . 7 4 Classification 8 5 EMC requirements 8 6 Information to be given regarding the enclosure . 9 6.1 General . 9 6.2 Marking . 9 6.3 Documentation 9 6.3.1 General . 9 6.3.2 Dimensions . 9 6.3.3 Mounting arrangements . 10 6.3.4 Permissible loads 10 6.3

26、.5 Lifting and transport support 10 6.3.6 Protective circuit 10 7 Service conditions 10 7.1 General . 10 7.2 Normal service conditions . 10 7.2.1 Ambient air temperature 10 7.2.2 Humidity conditions . 11 7.3 Special service conditions . 11 7.4 Conditions during transport and storage 11 8 Design and

27、construction . 11 8.1 General . 11 8.2 Static loads . 12 8.3 Lifting and transport support 12 8.4 Access to the interior of the enclosure . 12 8.5 Protective circuit 12 8.6 Dielectric strength . 12 8.7 Degree of protection (IK code) . 12 8.8 Degree of protection (IP code) . 13 9 Type tests 13 9.1 Ge

28、neral . 13 9.2 General conditions of tests 13 9.3 Marking . 14 9.4 Static loads . 14 9.5 Lifting 14 9.6 Axial loads of metal inserts 15 9.7 Degree of protection against external mechanical impacts (IK code) . 15 9.8 Degree of protection (IP code) . 16 9.8.1 Degree of protection against access to haz

29、ardous parts and against the ingress of solid foreign objects indicated by first characteristic numeral . 16 9.8.2 Degree of protection against ingress of water as indicated by second characteristic numeral . 16 BS EN 62208:201162208 IEC:2011 3 9.8.3 Degree of protection against hazardous parts as i

30、ndicated by additional letter 17 9.9 Properties of insulating materials 17 9.9.1 Thermal stability 17 9.9.2 Resistance to normal heat . 17 9.9.3 Resistance to abnormal heat and to fire . 17 9.10 Dielectric strength . 18 9.10.1 General . 18 9.10.2 Preconditioning 19 9.10.3 Enclosures without metal el

31、ements inside the protected space 19 9.10.4 Enclosures having metal elements inside the protected space . 19 9.10.5 Results to be obtained . 19 9.11 Continuity of the protective circuit 19 9.12 Resistance to ultra-violet (UV) radiation 20 9.13 Resistance to corrosion . 20 9.13.1 General . 20 9.13.2

32、Test procedure 20 9.13.3 Results to be obtained . 21 9.14 Thermal power dissipation capability . 21 Bibliography 22 Table 1 Number of samples to be tested and order of test per sample . 13 Table 2 Axial loads of metal inserts 15 BS EN 62208:2011 6 62208 IEC:2011 EMPTY ENCLOSURES FOR LOW-VOLTAGE SWIT

33、CHGEAR AND CONTROLGEAR ASSEMBLIES GENERAL REQUIREMENTS 1 Scope This International Standard applies to empty enclosures, prior to the incorporation of switchgear and controlgear components by the user, as supplied by the enclosure manufacturer. This standard specifies general definitions, classificat

34、ions, characteristics and test requirements of enclosures to be used as part of switchgear and controlgear assemblies (e.g. in accordance with the IEC 61439 series), the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c., and suitable for general use for either indoor or outdoor app

35、lications. NOTE 1 Additional requirements may apply for specific applications. NOTE 2 The United States of America (USA) uses enclosure “Type” designations according to NEMA 250. The NEMA Enclosure Type designations specify additional environmental requirements for conditions such as corrosion, rust

36、, icing, oil, and coolants. For this reason, the IEC Enclosure Classification Designations IP are used with an enclosure Type designation number appropriate for these markets. This standard does not apply to enclosures, which are covered by other specific products standards (e.g. IEC 60670 series).

37、Compliance with the safety requirements of the applicable product standard is the responsibility of the assembly manufacturer. NOTE 3 This standard may serve as a basis for other technical committees. 2 Normative references The following referenced documents are indispensable for the application of

38、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 60068-2-2:2007, Environmental testing Part 2-2: Tests Test B: Dry heat IEC 60068-2-11:1981, Basic environmental testing p

39、rocedures Part 2-11: Tests Test Ka: Salt mist IEC 60068-2-30:2005, Environmental testing Part 2-30: Tests Test Db: Damp heat, cyclic (12 h + 12 h cycle) IEC 60085:2007, Electrical insulation Thermal evaluation and designation IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)1IEC

40、 60695-2-10:2000, Fire hazard testing Part 2-10: Glowing/hot-wire based test methods Glow-wire apparatus and common test procedure _ 1There is a consolidated edition 2.1 (2001) that includes IEC 60529 (1989) and its Amendment 1 (1999). BS EN 62208:201162208 IEC:2011 7 IEC 60695-2-11:2000, Fire hazar

41、d testing Part 2-11: Glowing/hot-wire based test methods Glow-wire flammability test methods for end-products IEC 61439-1:2011, Low-voltage switchgear and controlgear assemblies Part 1: General rules2IEC 62262:2002, Degrees of protection provided by enclosures for electrical equipment against extern

42、al mechanical impacts (IK code) ISO 178:2001, Plastics Determination of flexural properties ISO 179 (all parts), Plastics Determination of Charpy impact properties ISO 2409:2007, Paints and varnishes Cross-cut test ISO 4628-3:2003, Paints and varnishes Evaluation of degradation of coatings Designati

43、on of quantity and size of defects, and of intensity of uniform changes in appearance Part 3: Assessment of degree of rusting ISO 4892-2:2006, Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc sources Amendment 1 (2009) ISO 11469:2000, Plastics Generic identification and mar

44、king of plastic products 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 empty enclosure enclosure intended for support and installation of electrical equipment, whose internal space provides suitable protection against external influences as

45、 well as a specified degree of protection against approach to or contact with live parts and against contact with moving parts NOTE 1 Throughout this standard, the word enclosure is used for empty enclosure. NOTE 2 The terms boxes, cubicles, desks or cabinets are alternative terms for enclosures. 3.

46、2 protected space internal space or portion of the internal space of the enclosure as specified by the manufacturer intended for the mounting of switchgear and controlgear for which the specified protection is provided by the enclosure 3.3 cover external part of the enclosure 3.4 door hinged or slid

47、ing cover _ 2To be published. BS EN 62208:2011 8 62208 IEC:2011 3.5 mounting plate separate internal accessory of the enclosure intended for the mounting of electrical components 3.6 cable gland plate removable accessory of the enclosure, intended for securing and sealing of cables, conductors and c

48、onduits at their point of entry 3.7 removable cover cover which is designed for closing an opening in the external enclosure and which can be removed for carrying out certain operations and maintenance work NOTE A lid is considered as a removable cover. 3.8 enclosure manufacturer manufacturer of an

49、enclosure or the vendor who resells under his own responsibility 4 Classification Enclosures are classified according to: a) the type of material: insulating; metallic; combination of insulating and metallic; b) method of fixing: floor standing; wall mounting; flush mounting; pole mounting; c) the intended location: outdoor; indoor; d) the degree of protection: IP code, according to IEC 60529; IK code, according to IEC 62262;