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SN EN 61557-3:1997现行

Electrical Safety In Low Voltage Distribution Systems Up To 1 Kv A.c. And 1,5 Kv D.c. - Equipment For Testing, Measuring Or Monitoring Of Protective Measures - Part 3: Loop Impedance

出版：Swiss Standards

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基本信息

标准编号： SN EN 61557-3:1997

发布时间：1997/3/1 0:00:00

标准类别：Standard

出版单位：Swiss Standards

标准页数：0

标准简介

Defines the requirements applying to equipment for measurement of the loop impedance between a phase and protective conductor, or between a phase conductor and neutral or between two phase conductors by means of the voltage drop when the circuit being tested is loaded.

等同采用的国际标准

UNE EN 61557-3:2007 - Identical

SS EN 61557-3 Ed. 2 (2007) - Identical

I.S. EN 61557-3:2007 - Identical

NF EN 61557-3:2007 - Identical

NBN EN 61557-3:2007 - Identical

IEC 61557-3 Ed. 2.0 - Identical

DIN EN 61557-3:2008 - Identical

UNE EN 61557-3 : 2007 - Identical

IEC 61557-3 : 2.0 - Identical

I.S. EN 61557-3:2007 - Identical

DIN EN 61557-3 : 2008 - Identical