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I.S. EN IEC 61557-7:2022

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Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence (IEC 61557-7:2019)

Available format(s): Hardcopy, PDF

Language(s): English

Published date: 07-06-2022

Publisher: National Standards Authority of Ireland

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FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Marking and operating instructions
6 Tests
Annex A (normative) Illustrations for mechanical tests
Annex B (informative) Phase sequence test
Bibliography

Abstract - (Show below) - (Hide below)

This part of IEC 61557 specifies the requirements applicable to measuring equipment for testing the phase sequence in three-phase distribution systems.

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Committee	IEC/TC 85
Document Type	Standard
ISBN
Pages
Product Note	This standard also refers to IEC 60050-311:2001. The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.
Published
Publisher	National Standards Authority of Ireland
Status	Current
Supersedes	I.S. EN 61557-7:2007

International Equivalents – Equivalent Standard(s) & Relationship - (Show below) - (Hide below)

Equivalent Standard(s)	Relationship
IEC 61557-7:2019	Identical

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