IEC 61557-9:1999 ED1

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

Publication date:   Sep 24, 1999

General information

99.60 Withdrawal effective   Jan 12, 2009

IEC

TC 85 Measuring equipment for electrical and electromagnetic quantities

International Standard

25.040.40   Industrial process measurement and control

Buying

Revised

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Scope

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 d.c. circuits having nominal voltages up to 1000 V a.c., as well as in unearthed IT d.c. systems with voltages up to 1500 V d.c., independent of the measuring principle.

This part is to be used in conjunction with IEC 61557-1.

Life cycle

NOW

WITHDRAWN
IEC 61557-9:1999 ED1
99.60 Withdrawal effective
Jan 12, 2009

REVISED BY

WITHDRAWN
IEC 61557-9:2009 ED2