Standard

NEK IEC 61557-7:2007

Jan 2007 Withdrawn

Note: This standard has a new edition: NEK IEC 61557-7:2019+A1:2023 CSV

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Language English

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Abstract

This part of IEC 61557 specifies the requirements for measuring equipment applied to testing the phase sequence in three-phase distribution systems. Indication of the phase sequence may be mechanical, visual and/or audible. This part of IEC 61557 does not apply to ancillary measuring equipment for other quantities, for example voltage testers comprising an additional phase sequence indicator. It does not apply to monitoring relays. This second edition cancels and replaces the first edition published in 1997. This edition constitutes a minor revision.

Document information

Standard from NEK
Published: 29 January 2007
Withdrawn: 26 July 2019
Edition: 2.0
Version: 1
Document type: NAT
Pages
ISBN:

ICS 17.220.20
ICS 29.080.01
ICS 29.240.01
National Committee NEK/NK85

Product Relations

Replaced by: NEK IEC 61557-7:2019
Replaces: NEK IEC 61557-7:1997
Adopted from: IEC 61557-7:2007

NEK IEC 61557-7:2007

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NEK IEC 61557-7:2019+A1:2023 CSV

NEK IEC 61557-7:2019