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Normas BSI – AENOR
BS EN 61557-9:2009

BS EN 61557-9:2009

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. Equipment for insulation fault location in IT systems

Fecha Anulación:
2015-02-28 /Withdrawn
Equivalencias internacionales:

EN 61557-9:2009

IEC 61058-1-2:2016

IEC 61557-9:2009

Relación con otras normas BSI:

Reemplazada por: BS EN 61557-9:2015

Reemplazada por: BS EN 61557-8:2015

Reemplaza a: BS EN 61557-9:2000

IEC 61557-9:2009 specifies the requirements for insulation fault location systems which localize 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. This second edition cancels and replaces the first edition published in 1999. It is a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- scope, normative references and terms and definitions complemented;
- revision of requirements, marking and operating instructions and Clause 6;
- revision of Table 1;
- addition of Annexes A, B and C.
Low-voltage equipment, Electrical safety, Electrical faults, Electrical measuring instruments, Electrical insulation, Electric power distribution, Computers, Electrical protection equipment, Accident prevention, Safety devices, Low voltage, Computer hardware, Computer networks, Defects
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