BS EN 61557-7:2007

Superseded

Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures Phase sequence

Available format(s)

Hardcopy , PDF

Superseded date

16-09-2022

Language(s)

English

Published date

29-05-2007

Publisher

British Standards Institution

1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Marking and operating instructions
  5.1 Marking
  5.2 Operating instructions
6 Tests
Annex A (normative) Illustrations for mechanical tests
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Defines the requirements for measurement of equipment applied to testing the phase sequence in three-phase distribution systems. The phase sequence may be indicated by mechanical, visual and/or audible means. Not applicable to ancillary measuring equipment for other quantities, such as voltage testers consisting of an additional phase sequence indicator. Not applicable to monitoring relays.

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.

Committee	PEL/85
DevelopmentNote	Supersedes 95/200309 DC. To be read in conjunction with BS EN 61557-1 (09/2005) Supersedes 04/30125204 DC. (06/2007)
DocumentType	Standard
Pages	12
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN 61557-7:2022+A1:2023 BS EN IEC 61557-7:2022
Supersedes	04/30125204 DC : DRAFT NOV 2004 BS EN 61557-7:1997 95/200309 DC : DRAFT FEB 1995

Standards	Relationship
NF EN 61557-7 : 2007	Identical
DIN EN 61557-7 : 2008	Identical
NBN EN 61557-7 : 2007	Identical
IEC 61557-7:2007	Identical
I.S. EN 61557-7:2007	Identical
EN 61557-7:2007	Identical
SN EN 61557-7 : 1997	Identical
UNE-EN 61557-7:2007	Identical

IEC 61557-1:2007	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 1: General requirements
EN 61557-1:2007	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 1: General requirements
IEC TR 61010-3-031:2003	Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 3-031: Conformity verification report for IEC 61010-031:2002 - Safety requirements for hand-held probe assemblies for electrical test and measurement

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BS EN 61557-7:2007

Superseded

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

Subcategory

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