當(dāng)前位置： 首頁 > 標(biāo)準(zhǔn)詳情頁

NBN EN 61557-7:2007現(xiàn)行

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

出版：Belgian Standards

獲取原文如何獲取原文？問客服獲取原文，即可享受本標(biāo)準(zhǔn)狀態(tài)變更提醒服務(wù)！

專家解讀視頻

基本信息

標(biāo)準(zhǔn)編號： NBN EN 61557-7:2007

發(fā)布時間：2007/10/1 0:00:00

標(biāo)準(zhǔn)類別：Standard

出版單位：Belgian Standards

標(biāo)準(zhǔn)頁數(shù)：8

標(biāo)準(zhǔn)簡介

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.

等同采用的國際標(biāo)準(zhǔn)

DIN EN 61557-7 (2008-02) - Identical

UNE EN 61557-7:2007 - Identical

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

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

NF EN 61557-7:2007 - Identical

DIN EN 61557-7 (1998-05) - Identical

BS EN 61557-7:2007 - Identical

SN EN 61557-7:1997 - Identical

DIN EN 61557-7:2008 - Identical

NF EN 61557-7 : 2007 - Identical

DIN EN 61557-7 : 2008 - Identical