HD 348 S6-1995 High-Voltage Alternating-Current Circuit-Breakers《交流高压断路器(IEC 56-1987+A1-1992+A2-1995 修改件)》.pdf
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1、 CENELEC HD*348*Sb 95 EH 3404583 OLbL83b 333 II HARMONIZATION DOCUMENT HD 348 S6 DOCUMENT DHARMONISATION HARMONISIERUNGSDOKUMENT September 1995 ICs 29.1 20.40 Supersedes HD 348 S5:1995 Descriptors: Switchgear and controlgear, high voltage, circuit-breaker, characteristic, design, test English versio
2、n High-voltage alternating-current circuit-breakers (IEC 56:1987 + A1:1992 + A2:1995, modified) Disjoncteurs courant alternatif haute tension (CE1 56:1987 + Al:1992 + A2:1995, modifie) modifiziert) Hochspannungs-WechseIstrom- Leistu n gssc ha Ite r (IEC 56:1987 + Al:1992 + A2:1995, This Harmonizatio
3、n Document was approved by CENELEC on 1995-07-04. CENELEC members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for implementation of this Harmonization Document on a national level. Up-to-date lists and bibliographical references concerning such nationa
4、l implementation may be obtained on application to the Central Secretariat or to any CENELEC member. This Harmonization Document exists in three official versions (English, French, German). CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Ge
5、rmany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central S
6、ecretariat: rue de Stassart 35, B - 1050 Brussels 1995 Copyright reserved to CENELEC members Ref. No. HD 348 S6:1995 E CENELEC HD*348*Sb 95 3404583 OLbL837 27T Page 2 HD 348 S6:1995 Foreword The text of the International Standard IEC 56:1987 and its amendment 1 : 1992, prepared by SC 17A, High-volta
7、ge switchgear and controlgear, of IEC TC 17, Switchgear and controlgear, together with common modifications prepared by Technical Committee CENELEC TC 17A, was submitted to the formal vote and was approved by CENELEC as HD 348 S5. The text of document 17A(C0)249, future amendment 2 to IEC 56: 1987,
8、was submitted to the IEC-CENELEC parallel vote. As CENELEC TC 17A had decided to postpone the conversion of the HD into EN to the next edition of IEC 56, the combined text of HD 348 S5 and amendment 2:1995 to IEC 56: 1987 was approved by CENELEC as HD 348 S6 on 1995-07-04. The following dates were f
9、ixed: - latest date by which the existence of the HD has to be announced at national level (doa) 1995-08-1 5 - latest date by which the HD has to be implemented at national level by publication of a harmonized national standard or by endorsement (dop) 1996-02-1 5 - latest date by which the national
10、standards conflicting with the HD have to be withdrawn (daw) 1996-02-1 5 Annexes designated “normative“ are part of the body of the standard. In this standard, annexes AA, BB, CC, DD, EE, FF, GG, HH, JJ, ZA and ZB are normativ. Annexes ZA and ZB have been added by CENELEC. Page 3 HD 348 S6:1995 Rate
11、d voltage Rated short-circuit Endorsement notice Rated normal current The text of the International Standard IEC 56:1987 and its amendments 1:1992 and 2: 1995 was approved by CENELEC as a Harmonization Document with agreed common modifications as given below. COM MON MOD I FI CATI ON S U kV1 Table X
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