Normas International Electrotechnical Commission

INTERNATIONAL ELECTROTECHNICAL COMMISSION

HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR -

Part 100:Alternating-current circuit-breakers

FOREWORD

1) The International ElectrotecllnicalCommission (IEC) is a worldwide organization for standardization comprislng all national electrotechnlcal eommittees (IEC National Committees). The object of IEC is to promote fnternational co operallon on aU questions concerning standardization in the electricaland electronic fields. To this end -and in addition to other activ1ties, IEC publishes International Standards, Technical Specifications, Technical Reports. Publicly Available Specifications (PAS) and Guides (hereafter referred to as IEC Publcation(sr). Their preparation is entrusted to technicalcommittees; any IEC NationalCommittee interested

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2) The formaldecsi ons or agreements of JEC on technical matters expre.ss.as nearly as possible, an lnternatJonal consensus of opinion on the relevant subjects s)nce each technical commHtee has representation from all interested IEC Nat onalCommittees.

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between any tEC Publication and the corresponding nationalor regionalpubltcatJon shall be clearlyIndicated m

lhe latter.

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International Standard IEC 62271-100 has been prepared by subcommittee 17A: High-voltage switchgear and controlgear, of IEC technical committee 17: Switchgear and controlgear.

This second edition cancels and replaces the first edition published in 2001 and its amendments 1 (2002) and 2 (2006). It also cancels and replaces IEC 61633 and IEC 62271-

308.

The main changes with respect to

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