NEN EN IEC 61557-3:2007现行
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 3: Loop Impedance
出版：Nederlands Normalisatie Instituut
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基本信息
标准编号： NEN EN IEC 61557-3:2007
发布时间：2007/4/1 0:00:00
标准类别：Standard
出版单位：Nederlands Normalisatie Instituut
标准页数：19
标准简介
Defines the requirements applicable to 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.
等同采用的国际标准
IEC 61557-3 Ed. 2.0 - Identical
