IEC 61557-8 Ed. 2.0 b:2007

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

International Electrotechnical Commission , 01/29/2007

Publisher: IEC

File Format: PDF

$78.00$157.00


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.

IEC 61557-8 Ed. 2.0 b:2007 History

IEC 61557-8 Ed. 3.0 b:2014

IEC 61557-8 Ed. 3.0 b:2014

$164.00 $329.00

IEC 61557-8 Ed. 2.0 b:2007
IEC 61557-8 Ed. 2.0 b CORR1:2007
IEC 61557-8 Ed. 1.0 b:1997

More IEC Standards PDF

IEEE 45.2-2011

IEEE 45.2-2011

$87.00 $174.00

IEC 61290-4-1 Ed. 1.0 b:2011
IEEE 11073-10406-2011

IEEE 11073-10406-2011

$54.00 $109.00

IEEE 802.11s-2011

IEEE 802.11s-2011

$159.00 $318.00