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IEC 61557-7 Ed. 1.0 b:1997 [ Withdrawn ]

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

standard by International Electrotechnical Commission , 02/28/1997

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Full Description

Specifies requirements for measuring equipment applied to testing th e phase sequence in three-phase distribution systems. Indication of the phase sequence may be mechanical, visual and/or audible.
 

Product Details

Edition:
1.0
Published:
02/28/1997
Number of Pages:
15
File Size:
1 file , 85 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


    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

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    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