IEC 61557-3 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 3: Loop impedance
出版：International Electrotechnical Committee
專家解讀視頻
基本信息
標準編號： IEC 61557-3 Ed. 1.0
發(fā)布時間：1997/2/14 0:00:00
標準類別：Standard
出版單位：International Electrotechnical Committee
標準頁數(shù)：15
標準簡介
Specifies requirements for equipment for measuring the loop impedance between a phase conductor and the protective conductor or between a phase conductor and neutral or between two phase conductors by using the voltage drop when the circuit under test is loaded.
替代本標準的新標準
等同采用的國際標準
BS EN 61557-3:1997 - Identical
