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IEC 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 - Part 9: Equipment for insulation fault location in IT systems

Standard Details

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.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: IEC 61557-9:2009
Document Year: 2009
Pages: 45
Edition: 2.0
  • Section Volume:
  • TC 85 Measuring equipment for electrical and electromagnetic quantities
  • ICS:
  • 25.040.40 Industrial process measurement and control

Life Cycle

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WITHDRAWN
IEC 61557-9:2009
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