04/30125199 DC : DRAFT NOV 2004被替代
IEC 61557-6 ED.2 - ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. V D.C. EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 6: RESIDUAL CURRENT DEVICES (RCD) IN TT AND TN SYSTEMS
出版：British Standards Institution
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