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IEC 61557-7 Ed. 2.0現行

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

出版：International Electrotechnical Committee

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基本信息

標準編號： IEC 61557-7 Ed. 2.0

發布時間：2007/1/29 0:00:00

標準類別：Standard

出版單位：International Electrotechnical Committee

標準頁數：17

標準簡介

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.

本標準替代的舊標準

IEC 61557-7 Ed. 1.0

等同采用的國際標準

OVE/ONORM EN 61557-7:2008 - Identical

VDE 0413-7:2008 - Identical

PN EN 61557-7:2007 - Identical

BS EN 61557-7:2007 - Identical

NEN EN IEC 61557-7:2007 - Identical

I.S. EN 61557-7:2007 - Identical

UNE EN 61557-7:2007 - Identical

SS EN 61557-7 Ed. 2 (2007) - Identical

SN EN 61557-7:1997 - Identical