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IEC 61557-8 Ed. 2.0被替代

Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures Part 8: Insulation monitoring devices for IT systems

出版：International Electrotechnical Committee

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基本信息

標準編號： IEC 61557-8 Ed. 2.0

發布時間：2007/1/29 0:00:00

標準類別：Standard

出版單位：International Electrotechnical Committee

標準頁數：41

標準簡介

This part of IEC 61557 specifies the requirements for insulation monitoring devices (IMD) which permanently monitor the insulation resistance to earth of unearthed IT a.c. systems, for IT a.c. systems with galvanically connected d.c. circuits having nominal voltages up to 1 000 V a.c., as well as of unearthed IT d.c. systems with voltages up to 1 500 V d.c. independent from the method of measuring. This second edition cancels and replaces the first edition published in 1997. This edition constitutes a technical revision. The following changes were made with respect to the previous edition: a) definitions complemented; b) revision of some requirements; c) addition of information on operating instructions; d) sections ""type tests"" and ""routine tests"" complemented; e) modification of Table 1; f) addition of Annexes A and B. The contents of the corrigendum of May 2007 have been included in th

本標準替代的舊標準

IEC 61557-8 Ed. 1.0

替代本標準的新標準

IEC 61557-8 Ed. 3.0

等同采用的國際標準

CEI EN 61557-8 Ed. 2 (2008) - Identical

SS EN 61557-8 Ed. 2 (2007) - Identical

UNE EN 61557-8:1998 - Identical

UNE EN 61557-8:2008 - Identical

CEI EN 61557-8 Ed. 2 (2007) - Identical

SN EN 61557-8:1997 - Identical

I.S. EN 61557-8:2007 - Identical