1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationLow-voltage switchgear and controlgear assemblies Part 2: Power switchgear and controlgear assembliesBS EN 61439-2:2009National forewordThis British Standard is the UK implementa
2、tion of EN 61439-2:2009. It isidentical to IEC 61439-2:2009. Together with BS EN 61439-1:2009, it supersedes BS EN 60439-1:1999, which will be withdrawn on 1 November 2014.National Annex NA (informative) provides additional information regarding different types of construction based on typical UK in
3、dustry practice.The UK participation in its preparation was entrusted by Technical Committee PEL/17, Switchgear, controlgear, and HV-LV co-ordination, to Subcommittee PEL/17/3, Low voltage switchgear and controlgear assemblies.A list of organizations represented on this committee can be obtained onr
4、equest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2010 ISBN 978 0 580 54664 8 ICS 29.130.20Compliance with a British Standard cannot confer immunity from legal obligations.This Britis
5、h Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2010Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 61439-2:2009EUROPEAN STANDARD EN 61439-2 NORME EUROPENNE EUROPISCHE NORM November 2009 CENELEC European Co
6、mmittee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC
7、 members. Ref. No. EN 61439-2:2009 E ICS 29.130.30 English version Low-voltage switchgear and controlgear assemblies - Part 2: Power switchgear and controlgear assemblies (IEC 61439-2:2009) Ensembles dappareillage basse tension - Partie 2: Ensembles dappareillage de puissance (CEI 61439-2:2009) Nied
8、erspannungs -Schaltgertekombinationen - Teil 2: Energie - Schaltgertekombinationen (IEC 61439-2:2009) This European Standard was approved by CENELEC on 2009-11-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European St
9、andard 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, F
10、rench, 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, Belgiu
11、m, Bulgaria, 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. BS EN 61439-
12、2:2009EN 61439-2:2009 2 Foreword The text of the International Standard IEC 61439-2:2009, prepared by SC 17D, Low-voltage switchgear and controlgear assemblies, of IEC TC 17, Switchgear and controlgear, was submitted to the formal vote and was approved by CENELEC as EN 61439-2 on 2009-11-01. The fol
13、lowing 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) 2010-11-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2014-11-01 This standard is
14、to be read in conjunction with EN 61439-1. The provisions of the general rules dealt with in IEC 61439-1 (hereinafter referred to as Part 1) are only applicable to this standard insofar as they are specifically cited. When this standard states “addition”, “modification” or “replacement”, the relevan
15、t text in Part 1 is to be adapted accordingly. Subclauses that are numbered with a 101 (102, 103, etc.) suffix are additional to the same subclause in Part 1. Tables and figures in this Part 2 that are new are numbered starting with 101. New annexes in this Part 2 are lettered AA, BB, etc. In this s
16、tandard, terms written in small capitals are defined in Clause 3. This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and covers essential requirements of EC Directive EMC (2004/108/EC). See Annex ZZ. Annexes ZA
17、 and ZZ have been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61439-2:2009 was approved by CENELEC as a European Standard without any modification. _ BS EN 61439-2:2009 3 EN 61439-2:2009 Annex ZA (normative) Normative references to international publications wit
18、h 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
19、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 60947-3 1999 Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units EN
20、 60947-3 1999 1)IEC 61140 2001 Protection against electric shock - Common aspects for installation and equipment EN 61140 2002 IEC 61439-1 2009 Low-voltage switchgear and controlgear assemblies - Part 1: General rules EN 61439-1 2009 1)EN 60947-3:1999 is superseded by EN 60947-3:2009, which is based
21、 on IEC 60947-3:2008. BS EN 61439-2:2009EN 61439-2:2009 4 Annex ZZ (informative) Coverage of Essential Requirements of EC Directive 2004/108/EC This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and within its
22、scope the standard covers all relevant essential requirements as given in Article 1 of Annex I of the EC Directive 2004/108/EC. Compliance with this standard provides one means of conformity with the specified essential requirements of the Directive concerned. WARNING: Other requirements and other E
23、C Directives may be applicable to the products falling within the scope of this standard. BS EN 61439-2:2009 2 61439-2 IEC:2009 CONTENTS 1 Scope.5 2 Normative references .5 3 Terms and definitions .5 3.1 General terms .5 3.2 Constructional units of PSC-ASSEMBLIES .6 4 Symbols and abbreviations.7 5 I
24、nterface characteristics .7 6 Information .7 6.1 PSC-ASSEMBLY designation marking .7 7 Service conditions 8 8 Constructional requirements.8 9 Performance requirements .11 10 Design verification11 11 Routine verifications.11 Annexes .15 Annex AA (informative) Forms of internal separations (see 8.101)
25、 .16 Annex BB (informative) Items subject to agreement between the ASSEMBLY manufacturer and the user 19 Bibliography22 Figure AA.1 Symbols used in Figures AA.2 and AA.3.16 Figure AA.2 Forms 1 and 2 17 Figure AA.3 Forms 3 and 4 18 Table 101 Values of assumed loading12 Table 102 Test voltages across
26、the open contacts of equipment suitable for isolation12 Table 103 Electrical conditions for the different positions of withdrawable parts.13 Table 104 Forms of internal separation 14 BS EN 61439-2:200961439-2 IEC:2009 5 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES Part 2: Power switchgear and c
27、ontrolgear assemblies 1 Scope This clause of Part 1 is applicable except as follows. Addition: This standard defines the specific requirements of power switchgear and controlgear assemblies (PSC-ASSEMBLIES), the rated voltage of which does not exceed 1000 V a.c. or 1500 V d.c. Throughout this part,
28、the abbreviation PSC-ASSEMBLY is used for a power switchgear and controlgear ASSEMBLY (see 3.1.101). This standard does not apply to the specific types of ASSEMBLIES covered by other parts of IEC 61439. 2 Normative references This clause of Part 1 is applicable except as follows. Addition: IEC 60947
29、-3:1999, Low-voltage switchgear and controlgear Part 3: Switchgear, disconnectors, switch-disconnectors and fuse-combination units IEC 61140:2001, Protection against electric shock Common aspects for installation and equipment Basic safety publication IEC 61439-1, Low-voltage switchgear and controlg
30、ear assemblies Part 1:General rules 3 Terms and definitions This clause of Part 1 is applicable except as follows. 3.1 General terms Additional definitions: 3.1.101 power switchgear and controlgear assembly (PSC-ASSEMBLY) low-voltage switchgear and controlgear ASSEMBLY used to distribute and control
31、 energy for all types of loads, intended for industrial, commercial and similar applications where operation by ordinary persons is not intended BS EN 61439-2:2009 6 61439-2 IEC:2009 3.1.102 test situation condition of a PSC-ASSEMBLY or part of it in which the relevant main circuits are open on its
32、supply side but not necessarily isolated whilst the associated auxiliary circuits are connected, allowing operation tests of the incorporated devices 3.1.103 form of internal separation classification of physical separation within a PSC-ASSEMBLY. 3.2 Constructional units of ASSEMBLIES Replacement of
33、 the title: 3.2 Constructional units of PSC-ASSEMBLIES Additional definitions: 3.2.101 withdrawable part removable part intended to be moved from the connected position to the isolated position and to a test position, if any, whilst remaining mechanically attached to the PSC-ASSEMBLY 3.2.102 test po
34、sition position of a withdrawable part in which the relevant main circuits are open on its supply side but not necessarily isolated and in which the auxiliary circuits are connected allowing operation tests of the incorporated devices, the withdrawable part remaining mechanically attached to the PSC
35、-ASSEMBLY NOTE The opening may also be achieved without any mechanical movement of the withdrawable part by operation of a suitable device. 3.2.103 isolated position position of a withdrawable part in which an isolating distance is established in main and auxiliary circuits on its supply side, the w
36、ithdrawable part remaining mechanically attached to the PSC-ASSEMBLY NOTE The isolating distance may also be established without any mechanical movement of the withdrawable part by operation of a suitable device. 3.2.104 isolating distance (of a withdrawable part) clearance between open contacts mee
37、ting the safety requirements specified for disconnectors IEV 441-17-35: 1984. modified Addition: 3.101 Electrical connections of functional units 3.101.1 disconnectable connection connection which is connected or disconnected by manual operation of the connecting means without a tool BS EN 61439-2:2
38、00961439-2 IEC:2009 7 3.101.2 withdrawable connection connection which is connected or disconnected by bringing the functional unit into the connected or isolated position 3.102 Gangways within PSC-ASSEMBLIES 3.102.1 operating gangway within a PSC-ASSEMBLIES space to be used by the operator for the
39、proper operation and supervision of the PSC-ASSEMBLY 3.102.2 maintenance gangway within a PSC-ASSEMBLIES space which is accessible to authorized personnel only and primarily intended for use when servicing the installed equipment 4 Symbols and abbreviations This clause of Part 1 is applicable. 5 Int
40、erface characteristics This clause of Part 1 is applicable except as follows. 5.3.3 Rated diversity factor (RDF) Addition: In the absence of an agreement between the ASSEMBLY manufacturer and user concerning the actual load currents, the assumed loading of the outgoing circuits of the ASSEMBLY or gr
41、oup of outgoing circuits may be based on the values in Table 101. 5.5 Other characteristics Replacement of item l): l) the type of construction - fixed, removable or withdrawable parts (see 8.5.2.101 to 8.5.2.103); Addition: m) the form of internal separation (see 8.101); n) the types of electrical
42、connections of functional units (see 8.5.101). 6 Information This clause of Part 1 is applicable except as follows 6.1 ASSEMBLY designation marking Replacement of the title and item d): 6.1 PSC-ASSEMBLY designation marking d) IEC 61439-2; BS EN 61439-2:2009 8 61439-2 IEC:2009 6.2.1 Information relat
43、ing to the ASSEMBLY Replacement of the title: 6.2.1 Information relating to the PSC-ASSEMBLY Addition: l) form of internal separation (see 8.101); m) types of electrical connections of functional units (see 8.5.101). 7 Service conditions This clause of Part 1 is applicable. 8 Constructional requirem
44、ents This clause of Part 1 is applicable except as follows. 8.2 Degree of protection provided by a ASSEMBLY enclosure Replacement of the title: 8.2 Degree of protection provided by a PSC-ASSEMBLY enclosure Subclause 8.2.1 of Part 1 is not applicable. Additional subclause: 8.2.101 Degree of protectio
45、n of withdrawable parts The degree of protection indicated for PSC-ASSEMBLIES normally applies to the connected position (see 3.2.3) of withdrawable parts. The ASSEMBLY manufacturer shall indicate the degree of protection obtained in the other positions and during the transfer between positions. PSC
46、-ASSEMBLIES with withdrawable parts may be so designed that the degree of protection applying to the connected position is also maintained in the test and isolated positions and during transfer from one position to another. If, after the removal of a withdrawable part, the original degree of protect
47、ion is not maintained, an agreement shall be reached between the ASSEMBLY manufacturer and user as to what measures shall be taken to ensure adequate protection. Information provided by the ASSEMBLY manufacturer may take the place of such an agreement. 8.3.2 Clearances Addition: Where functional uni
48、ts are mounted on withdrawable parts, the isolation provided in the isolated position shall at least comply with the requirements in the relevant specification for disconnectors (see IEC 60947-3). This applies with the equipment in new condition, taking account of the manufacturing tolerances and an
49、ticipated changes in dimensions due to wear. The isolating distance between the withdrawable unit main contacts and their associated fixed contacts in the isolated position shall be capable of withstanding the test voltage for the declared impulse withstand voltage as specified in Table 102. BS EN 61439-2:200961439-2 IEC:2009 9 8.4.3.2.2 Requirements for earth continuity providing protection against the consequences of faults within the ASSEMBLY Replacement of
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