DANSK DS/EN 61557-7 PDF

DANSK DS/EN 61557-7 PDF

Name:
DANSK DS/EN 61557-7 PDF

Published Date:
04/04/2007

Status:
[ Withdrawn ]

Description:

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

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Choose Document Language:
$13.2
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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 ancillary measuring equipment for other quantities, for example voltage testers comprising an additional phase sequence indicator. It does not apply to monitoring relays. NOTE – Phase lamps are not considered to be voltage testers.


Edition : 07
File Size : 1 file , 460 KB
Number of Pages : 15
Product Code(s) : DS-013, DS-013
Published : 04/04/2007

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