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IEC 61557-7 Ed. 2.0 b:2007 [ Withdrawn ]

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

standard by International Electrotechnical Commission , 01/29/2007

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Full Description

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.
 

Product Details

Edition:
2.0
Published:
01/29/2007
Number of Pages:
17
File Size:
1 file , 140 KB
Note:
This product is unavailable in Ukraine, Russia, Belarus, Canada
 

Document History

  1. IEC 61557-7 Ed. 3.1 b:2023


    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 CONSOLIDATED EDITION

    • Most Recent

  2. IEC 61557-7 Ed. 3.0 b:2019


    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

    • Historical Version

  3. IEC 61557-7 Ed. 2.0 b:2007

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    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

    • Historical Version

  4. IEC 61557-7 Ed. 1.0 b:1997


    Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence

    • Historical Version