Standard [CURRENT]
DIN EN 61557-8:2015-12
VDE 0413-8:2015-12
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 (IEC 61557-8:2014); German version EN 61557-8:2015
- German title
- Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V - Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 8: Isolationsüberwachungsgeräte für IT-Systeme (IEC 61557-8:2014); Deutsche Fassung EN 61557-8:2015
- Publication date
- 2015-12
- Original language
- German
- Pages
- 55
- Publication date
- 2015-12
- Original language
- German
- Pages
- 55
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This part of IEC 61557 specifies the requirements for insulation monitoring devices (IMD) which permanently monitor the insulation resistance RF to earth of unearthed a.c. IT systems, of a.c. IT systems with galvanically connected d.c. circuits having nominal voltages up to 1 000 V a.c., as well as of unearthed d.c. IT systems with voltages up to 1 500 V d.c. independent from the method of measuring. IT systems are described in IEC 60364-4-41 amongst other literature. Additional data for the selection of devices in other standards should be noted. The use of insulation monitoring devices in IT systems is specified in various standards. The devices have the task of signalling when the insulation resistance RF falls below a minimum value. The responsible committee is Subcommittee DKE/UK 964.1 "Messgeräte zum Prüfen von Schutzmaßnahmen" ("Equipment for testing of protective measures") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.
This document replaces DIN EN 61557-8:2007-12; VDE 0413-8:2007-12 .
This document has been corrected by: DIN EN 61557-8 Berichtigung 1:2016-12; VDE 0413-8 Berichtigung 1:2016-12 .