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  • IEC 61557-7 Ed. 1.0 b:1997

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

Publisher: IEC

File Format: PDF

$16.00$32.00


Published:28/02/1997

Pages:15

File Size:1 file , 85 KB

Note:This product is unavailable in Ukraine, Russia, Belarus

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.

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