IEC 61481-1:2014
Live working - Phase comparators - Part 1: Capacitive type to be used for voltages exceeding 1 kV a.c.
OVERVIEW
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;
- and revision of existing annexes. The contents of the corrigendum of July 2015 have been included in this copy.
COMMENTS
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PRODUCT DETAILS
| Status | Current |
|---|---|
| Edition | 2014 |
| No. of Pages | 163 |
| ICS Classification | 29.260.99 Other electrical equipment for working in special conditions 29.240.20 Power transmission and distribution lines 13.260 Protection against electric shock. Live working |
| Committee | TC 78 |
| Available for Purchase | For sale in Singapore only |
| Adoption | IEC |