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Reference IEC 61557-7 ed2.0 withdrawn corrigendum

Title Versión Oficial en Español - Seguridad eléctrica en redes de distribución de baja tensión hasta 1 000 V c.a. y 1 500 V c.c.. Equipos para ensayo, medida o vigilancia de las medidas de protección. Parte 7: Secuencia de fases
Publication date 2007-01-29
Format, price
(Swiss francs)
and language
35.- 17 pages
35.- 169 Kb
Abstract This part of IEC 61557 specifies the requirements for measuring equipment applied to testing the phase sequence in three-phase distribution systems. Indication of the phase sequence may be mechanical, visual and/or audible. This part of IEC 61557 does not apply to ancillary measuring equipment for other quantities, for example voltage testers comprising an additional phase sequence indicator. It does not apply to monitoring relays. This second edition cancels and replaces the first edition published in 1997. This edition constitutes a minor revision.
Technical Committee 85 - Measuring equipment for electrical and electromagnetic quantities  RSS
ICS Codes
17.220.20 Measurement of electrical and magnetic quantities
*Including measuring instruments, instrument transformers
*Electric energy meters in buildings, see 91.140.50

29.080.01 Electrical insulation in general

29.240.01 Power transmission and distribution networks in general
*Powerline telecommunications, see 33.040.60
Replaced by
Stability date 2017
Work in progress
ProjectStage codeForecast publication date
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