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
International Electrotechnical Commission , 02/28/1997
$16.00
$32.00
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 Information
Published:
02/28/1997
Pages:
15
File Size:
1 file , 85 KB
Language:
English, French
Note:
This product is unavailable in Ukraine, Russia, Belarus
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