JS EN 61557-9:2009
Electrical safety in low voltage distribution systems up to 1 000 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
This part of JS specifies the requirements for insulation fault location systems which localize insulation faults in any part of the system in unearthed IT a.c. systems with galavanically connected d.c. circuits having nominal voltages up to 1 000 V a.c. as well as in unearthed IT d.c. systems with voltages up to 1 500 V d.c. independent of the measuring principle.
General information
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Status
Published Document (JS)
Publication date
01/02/2010
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Effiective date
01/08/2010
Number of pages
18
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