EN 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：European Committee for Standards - Electrical
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基本信息
标准编号： EN 61557-3 : 2007
标准类别：Standard
出版单位：European Committee for Standards - Electrical
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.
