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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.
Author | VDE |
---|---|
Editor | VDE |
Document type | Draft |
Format | Paper |
expiration_de_validite | 2018-04-09 |
ICS | 17.220.20 : Measurement of electrical and magnetic quantities
|
Number of pages | 17 |
Cross references | IEC 85/613/CD (2017-06), IDT |
Weight(kg.) | 0.1289 |
Year | 2018 |
Document history | |
Country | Germany |
Keyword | DIN EN 61557;EN 61557;EN 61557-7;61557 |