DIN IEC 61557-8 (2005-04)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 8: Insulation Monitoring Devices For It-systems
出版：German Institute for Standardisation (Deutsches Institut für Normung)
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