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IEC 61557-7:2007 ED2

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 7: Phase sequence
29. 1. 2007.

Опште информације

99.60     26. 7. 2019.

WPUB   

IEC

TC 85

Međunarodni standard

17.220.20     29.080.01     29.240.01  

engleski   francuski   španski  

Kupovina

Revidiran

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Apstrakt

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.

Životni ciklus

PRETHODNO

POVUČEN
IEC 61557-7:1997 ED1

TRENUTNO

POVUČEN
IEC 61557-7:2007 ED2
99.60 Povlačenje stupilo na snagu
26. 7. 2019.

REVIDIRAN OD

OBJAVLJEN
IEC 61557-7:2019 ED3