EN 61557-9:2015
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

Standard No.

EN 61557-9:2015

Release Date

2015

Published By

European Committee for Electrotechnical Standardization（CENELEC）

Status

Be replaced

Replace By

EN 61557-9:2015/AC:2016

Latest

EN 61557-9:2015/AC:2016

Scope

IEC 61557-9:2014 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. This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision which includes the following significant technical changes with respect to the previous edition: - the scope, normative references, terms and definitions have been complemented; - abbreviations are listed and explained; - requirements, marking and operating instructions have been revised; - mandatory and optional functions have been defined and their terminology has been adapted to IEC 61557-15; - mechanical requirements have been added; - Clause 6 "Tests" has been revised; and - new Tables have been added.

EN 61557-9:2015 history

• 0000 EN 61557-9:2015/AC:2016
• 2015 EN 61557-9:2015 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
• 2009 EN 61557-9:2009 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
• 1999 EN 61557-9:1999 Electrical Safety in Low Voltage Distribution Systems up to 1 kV a.c. and 1@5 kV d.c. Equipment for Testing@ Measuring or Monitoring of Protective Measures Part 9: Equipment for Insulation Fault Location in IT Systems