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

99.60 Withdrawal effective   Jan 29, 2007

IEC

TC 85 Measuring equipment for electrical and electromagnetic quantities

International Standard

17.220.20   Measurement of electrical and magnetic quantities | 29.080.01   Electrical insulation in general | 29.240.01   Power transmission and distribution networks in general

Buying

Revised

Language in which you want to receive the document.

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WITHDRAWN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WITHDRAWN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