High-voltage switchgear and controlgear - Part 112: Alternating current high-speed earthing switches for secondary arc extinction on transmission lines (IEC 62271-112:2021)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

20-09-2021

Publisher

National Standards Authority of Ireland

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FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Normal and special service conditions
5 Ratings
6 Design and construction
7 Type tests
8 Routine tests
9 Guide to the selection of HSESs (informative)
10 Information to be given with enquiries, tenders and orders (informative)
11 Transport, storage, installation, operating instructions and maintenance
12 Safety
Annex A (informative) Background information on the use of HSESs
Annex B (informative) Induced current and voltage conditions for other cases
Bibliography

This part of IEC 62271 applies to AC high-speed earthing switches (hereinafter termed HSES) designed for indoor and outdoor installation and for operation at service frequencies of 50 Hz and 60 Hz on systems having rated voltages of 550 kV and above.

Committee	TC 17
DocumentType	Standard
ISBN	978-2-8322-1001-6
Pages	68
ProductNote	The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.
PublisherName	National Standards Authority of Ireland
Status	Current
Supersedes	I.S. EN 62271-112:2013

Standards	Relationship
EN IEC 62271-112:2021	Identical
IEC 62271-112:2021	Identical

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I.S. EN IEC 62271-112:2021

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