IEC 61557-7:1997 ED1

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 - Part 7: Phase sequence

Publication date: Feb 28, 1997

General information

Current stage: 99.60 Effective date: Jan 29, 2007

Originator: IEC

Owner: TC 85

Type: International Standard

ICS: 17.220.20 29.080.01 29.240.01

Languages: English French Spanish

Buying

Status: Revised

PDF - ALL 2,261

Paper - ALL 2,261

CD - ALL 2,261

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Scope

Specifies requirements for measuring equipment applied to testing th
e phase sequence in three-phase distribution systems. Indication of
the phase sequence may be mechanical, visual and/or audible.

Life cycle

NOW

WITHDRAWN
IEC 61557-7:1997 ED1
99.60 Withdrawal effective
Jan 29, 2007

REVISED BY

WITHDRAWN
IEC 61557-7:2007 ED2