Abstract

This part of IEC 61557 specifies the requirements for the insulation fault location system (IFLS) that localizes insulation faults in any part of the system in unearthed IT AC systems and unearthed IT AC systems with galvanically connected DC circuits having nominal voltages up to 1 000 V AC, as well as in unearthed IT DC systems with voltages up to 1 500 V DC, independent of the measuring principle. IT systems are described in IEC 60364-4-41. Additional data for a selection of devices in other standards should be noted.

Begin

2021-06-28

Planned document number

DIN EN IEC 61557-9

Project number

02230366

Responsible national committee

DKE/UK 964.1 - Messgeräte zum Prüfen und Überwachen von Schutzmaßnahmen  

draft standard

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 9: Equipment for insulation fault location in IT systems (IEC 85/783/CD:2021); Text in German and English
2022-02
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previous edition(s)

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 9: Equipment for insulation fault location in IT systems (IEC 61557-9:2014); German version EN 61557-9:2015, Corrigendum to DIN EN 61557-9 (VDE 0413-9):2015-10, (IEC 61557-9:2014/COR2:2017); German version EN 61557-9:2015/AC:2017-02
2017-05

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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 9: Equipment for insulation fault location in IT systems (IEC 61557-9:2014); German version EN 61557-9:2015
2015-10

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