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BS EN 61557-9:2015:2017 Edition

BS EN 61557-9:2015:2017 Edition

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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 – Equipment for insulation fault location in IT systems

Published By Publication Date Number of Pages
BSI 2017 34
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This part of IEC 61557 specifies the requirements for the insulation fault location system (IFLS) which localizes insulation faults in any part of the system in unearthed IT a.c. systems and unearthed IT a.c. systems with galvanically 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.

IT systems are described in IEC 60364‑4‑41 amongst other literature. Additional data for a selection of devices in other standards should be noted.

NOTE

Further information on insulation fault location can be found in the following standards: IEC 60364‑4‑41:2005, 411.6, and IEC 60364‑5‑53:2001, 531.3.

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BS EN 61557-9:2015
$167.15