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IEC 61481-1 Ed. 1.0 b:2014

Live working - Phase comparators - Part 1: Capacitive type to be used for voltages exceeding 1 kV a.c.
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IEC 61481-1 Ed. 1.0 b:2014

Live working - Phase comparators - Part 1: Capacitive type to be used for voltages exceeding 1 kV a.c.

PUBLISH DATE 2014
PAGES 163
IEC 61481-1 Ed. 1.0 b:2014

Live working - Phase comparators - Part 1: Capacitive type to be used for voltages exceeding 1 kV a.c.

IEC 61481-1:2014 is applicable to portable phase comparators of capacitive type to be used on electrical systems for voltages exceeding 1 kV a.c. and frequencies of 50 Hz and/or 60 Hz.

This standard is applicable to single-pole phase comparators of capacitive type operating with a memory system up to 36 kV a.c., and two-pole phase comparators of capacitive type operating with a wireless connection up to 245 kV a.c.

This standard is applicable to phase comparators of capacitive type used in contact with the bare conductive parts to be compared as a complete device including its insulating element or as a separate device, adaptable to an insulating stick which, as a separate tool, is not covered by this standard.

A device that is designed to provide other functions than phase comparison is a different device and is not covered by this standard. For example, a device designed to be also used as a voltage detector is not covered by this standard.

This first edition, together with the first edition of IEC 61481-2, cancels and replaces the first edition of IEC 61481 published in 2001, Amendment 1:2002 and Amendment 2:2004.

This edition constitutes a technical revision including the following major changes:

  • Split of the standard in two parts;
  • Extension of the scope to include two-pole phase comparators operating with a wireless connection up to 245 kV a.c.;
  • Review of the requirements for indication;
  • Introduction of a requirement for a new marking "LU" for limited use;
  • Revision of existing annexes.
SDO IEC: International Electrotechnical Commission
Document Number IEC 61481
Publication Date Oct. 24, 2014
Language b - English & French
Page Count
Revision Level 1.0
Supercedes
Committee 78
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