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