IEC 61557-7 Ed. 1.0被替代
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：International Electrotechnical Committee
專家解讀視頻
基本信息
標準編號： IEC 61557-7 Ed. 1.0
發布時間：1997/2/28 0:00:00
標準類別：Standard
出版單位：International Electrotechnical Committee
標準頁數：15
標準簡介
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.
替代本標準的新標準
等同采用的國際標準
BS EN 61557-7:1997 - Identical
