Standard

IEC 61557-9:2009 ED2

Jan 2009 Revised

Note: Latest version: IEC 61557-9:2023 ED4

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Abstract

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.

Products specifications

Standard from IEC
Published: January 12 2009
Withdrawn: December 11 2014
Edition: 2
Document type: IS
Pages
ISBN: 9782889105366

Publisher: IEC
Distributor: IEC
ICS: 25.040.40
International TC: TC 85

Product Relations

Revised by: IEC 61557-9:2014 ED3
Revises: IEC 61557-9:1999 ED1

IEC 61557-9:2009 ED2

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IEC 61557-9:2023 ED4

IEC 61557-9:2014 ED3