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