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

Publisher:
Dansk Standard

Document status:

Active

Format:

Electronic (PDF)

Delivery time:

10 minutes

Delivery time (for Russian version):

200 business days

SKU:

DRAFT * W/D S/S BY DS/EN IEC 61557-7

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. This part of IEC 61557 does not apply to additional measuring equipment for other quantities. It does not apply to monitoring relays.

Edition :	19
File Size :	1 file , 1.1 MB
Number of Pages :	16
Product Code(s) :	DSF-009, DSF-009

DANSK DSF/FPREN IEC 61557-7 PDF

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

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