1、High-voltage switchgearand controlgear Part 304: Design classes for indoor enclosed switchgear and controlgear forrated voltages above 1 kV up to andincluding 52 kV to be used in severe climatic conditionsDD CLC/TS 62271-304:2008raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS
2、PERMITTED BY COPYRIGHT LAWBSI British StandardsNational forewordThis Draft for Development is the UK implementation of CLC/TS 62271-304:2008.This publication is not to be regarded as a British Standard.It is being issued in the Draft for Development series of publications and is ofa provisional natu
3、re. It should be applied on this provisional basis, so thatinformation and experience of its practical application can be obtained.Comments arising from the use of this Draft for Development are requestedso that UK experience can be reported to the European organization responsible for its conversio
4、n to a European standard. A review of this publication will be initiated not later than three years after its publication bythe European organization so that a decision can be taken on its status.Notification of the start of the review period will be made in an announce-ment in the appropriate issue
5、 of Update Standards.According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion intoa European Standard, to extend the life of the Technical Specification or towithdraw it. Comments should be sent to the Secretary of
6、 the responsible BSITechnical Committee at British Standards House, 389 Chiswick High Road,London W4 4AL.The UK participation in its preparation was entrusted by Technical CommitteePEL/17, Switchgear, controlgear, and HV-LV co-ordination, to SubcommitteePEL/17/1, High-voltage switchgear and controlg
7、ear.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 2009ISBN 978 0 580 56713 1ICS 29.130.10BRITISH STANDARDD
8、D CLC/TS 62271-304:2008Amendments issued since publicationDate Text affectedThis Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 30 April 2009.TECHNICAL SPECIFICATION CLC/TS 62271-304 SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION November 2
9、008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reser
10、ved worldwide for CENELEC members. Ref. No. CLC/TS 62271-304:2008 E ICS 29.130.10 English version High-voltage switchgear and controlgear - Part 304: Design classes for indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV to be used in severe climatic co
11、nditions (IEC/TS 62271-304:2008) Appareillage haute tension - Partie 304: Classes de construction pour lappareillage dintrieur sous enveloppe pour tensions assignes partir de 1 kV jusqu 52 kV inclus pour usage sous conditions climatiques svres (CEI/TS 62271-304:2008) Hochspannungs-Schaltgerte und -S
12、chaltanlagen - Teil 304: Auslegungsklassen fr gekapselte Schaltgertekombinationen und Hochspannungsschaltanlagen von 1 kV bis einschlielich 52 kV fr den Einsatz unter erschwerten klimatischen Bedingungen (IEC/TS 62271-304:2008) This Technical Specification was approved by CENELEC on 2008-10-01. CENE
13、LEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force. CENELEC members are the national electrotechnical committees o
14、f Austria, Belgium, 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 King
15、dom. DD CLC/TS 62271-304:2008CLC/TS 62271-304:2008 - 2 - - Foreword The text of document 17C/402/CDV, future edition 1 of IEC/TS 62271-304, prepared by SC 17C, High-voltage switchgear and controlgear assemblies, of IEC TC 17, Switchgear and controlgear, was submitted to the IEC-CENELEC parallel vote
16、 and was approved by CENELEC as CLC/TS 62271-304 on 2008-10-01. The following date was fixed: latest date by which the existence of the CLC/TS has to be announced at national level (doa) 2009-01-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the Technical Specification IEC/T
17、S 62271-304:2008 was approved by CENELEC as a Technical Specification without any modification. _ DD CLC/TS 62271-304:2008- 3 - CLC/TS 62271-304:2008 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced docume
18、nts 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
19、, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60060-1 - 1)High-voltage test techniques - Part 1: General definitions and test requirements HD 588.1 S1 1991 2)IEC 60068-1 Series Environmental testing EN 60068 Series IEC 62271-1 2007 High-voltage switchgear an
20、d controlgear - Part 1: Common specifications EN 62271-1 2008 IEC 62271-200 - 1)High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV EN 62271-200 2004 2)IEC 62271-201 - 1)High-voltage switchgear a
21、nd controlgear - Part 201: AC insulation-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV EN 62271-201 + corr. November 2006 2)2006 1)Undated reference. 2)Valid edition at date of issue. DD CLC/TS 62271-304:2008 2 TS 62271-304 IEC:2008 CONTENTS FOREWORD
22、.3 1 Scope and object5 2 Normative references .5 3 Degrees of severity of service conditions under condensation and pollution .6 4 Classification of enclosed switchgear and controlgear 7 5 Classification procedure .7 6 Test facilities and associated requirements 9 6.1 Climatic test room .9 6.2 Contr
23、ol requirements.9 6.3 Energizing facilities .9 7 Selection and arrangement of the equipment for test9 7.1 Selection of the equipment 9 7.2 Arrangement of the equipment 9 8 Ageing test .10 8.1 Level 1 ageing test 10 8.2 Level 2 ageing test 11 9 Diagnostic procedure after ageing test .11 9.1 General .
24、11 9.2 Electrical diagnostic procedure12 9.3 Mechanical diagnostic procedure (optional).13 9.4 Evaluation .13 Annex A (normative) Climatic cycle14 Annex B (normative) Climatic test room .15 Annex C (informative) Example of typical environment.16 Figure 1 Flow chart for classification procedure .8 Fi
25、gure 2 Level 1 ageing test.11 Figure 3 Power-frequency withstand voltage test with high humidity after ageing test 12 Figure B.1 Climatic test room.15 Table C.1 Example of typical environment .16 DD CLC/TS 62271-304:2008TS 62271-304 IEC:2008 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HIGH-VOLTAGE
26、 SWITCHGEAR AND CONTROLGEAR Part 304: Design classes for indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV to be used in severe climatic conditions FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standar
27、dization 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 Inter
28、national 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
29、 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 t
30、he 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 ha
31、ve 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 mis
32、interpretation 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 nati
33、onal or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition
34、 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
35、 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 indispensabl
36、e 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. The main task of IEC technical committee
37、s is to prepare International Standards. In exceptional circumstances, a technical committee may propose the publication of a technical specification when the required support cannot be obtained for the publication of an International Standard, despite repeated efforts, or the subject is still under
38、 technical development or where, for any other reason, there is the future but no immediate possibility of an agreement on an International Standard. Technical specifications are subject to review within three years of publication to decide whether they can be transformed into International Standard
39、s. IEC 62771-304, which is a technical specification, has been prepared by subcommittee 17C: High-voltage switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear and controlgear. DD CLC/TS 62271-304:2008 4 TS 62271-304 IEC:2008 The text of this technical specification is bas
40、ed on the following documents: Enquiry draft Report on voting 17C/402/DTS 17C/422A/RVCFull information on the voting for the approval of this technical specification can be found in the report on voting indicated in the above table. This first edition of IEC/TS 62271-304 cancels and replaces the fir
41、st edition of IEC/TR 60932, published in 1988, and constitutes a technical revision. This revised document has been basically changed to be updated to todays use of high- voltage switchgear and controlgear up to 52 kV. This publication has been drafted in accordance with the ISO/IEC Directives, Part
42、 2. A list of all the parts in the IEC 62271 series, under the general title High-voltage switchgear and controlgear, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site
43、 under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be transformed into an International standard, reconfirmed, withdrawn, replaced by a revised edition, or amended. DD CLC/TS 62271-304:2008TS 62271-304 IEC:2008 5 HIGH-VOLTAGE SWITCHGEAR
44、 AND CONTROLGEAR Part 304: Design classes for indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV to be used in severe climatic conditions 1 Scope and object This part of IEC 62271 applies to indoor enclosed switchgear and controlgear complying with IEC
45、 62271-200 and IEC 62271-201, intended to be used in service conditions more severe with respect to condensation and pollution than the normal service conditions specified in IEC 62271-1. This technical specification covers equipment where any of the insulation is exposed to indoor climatic conditio
46、ns. The test detailed in this technical specification has been designed primarily to investigate the behaviour of electrical insulation and not corrosion on equipments. Nevertheless, the performance of mechanical components, such as mechanisms, interlocks and enclosures may also be recorded. This te
47、chnical specification proposes definitions for two degrees of severe service conditions with respect to condensation and pollution. It also proposes test procedures for assessing the performance of enclosed switchgear and controlgear under specified conditions so that conclusions may be drawn concer
48、ning their suitability for service under those severe service conditions. In this technical specification, the term “equipment“ is used in accordance with the scope for an “enclosed assembly of switchgear and controlgear“ (see IEC 60050-441, definition 441-12-02). NOTE The testing procedures describ
49、ed in this technical specification may also be applied to internal insulation of outdoor equipment. 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 60060-1: High-voltage test techniques Part 1: General definitions and test requirements IEC 60068 (
