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CEI EN IEC 61557-7 PDF

CEI EN IEC 61557-7 PDF

Name:
CEI EN IEC 61557-7 PDF

Published Date:
11/01/2022

Status:
[ Active ]

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:
Comitato Elettrotecnico Italiano

Document status:
Active
Format:
Electronic (PDF)
Delivery time:
10 minutes
Delivery time (for Russian version):
200 business days
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$13.5
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ENGLISH

This part of IEC 61557 specifies the requirements applicable to measuring equipment for testing the phase sequence in three-phase distribution systems. Indication of the phase sequence can be mechanical, visual and/or audible.

This document does not apply to additional measurements for other quantities. It does not apply to monitoring relays.

NOTE Common worldwide three-phase distribution systems are depicted in IEC 610101.


Edition : 22#
File Size : 1 file , 2.1 MB
Number of Pages : 24
Published : 11/01/2022

History

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