RO
SR EN 61557-7:2002
Electrical safety in low voltage distribution systems up to 1 kV a.c. and 1,5 kV d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence
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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Status :
Withdrawn
Approval date : 11/28/2002
Publish date : 12/15/2003
Withdrawal date : 3/1/2010
Number of pages : 12
ICS : 19.080 Electrical and electronic testing
Technical Committee : 166 - Measuring equipment for electrical and electromagnetic quantities
- Normative reference SR EN 61557-1:2002
- Replaced by SR EN 61557-7:2007