CEI EN 61557-7:1998-09
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Electrical safety in low-voltage distribution systems up to 1 kV AC and 1.5 kV DC - Apparatus for testing, measuring or controlling protective systems Part 7: Apparatus for measuring the phase sequence
Published date
01-09-1998
Publisher
Superseded date
04-10-2025
Superseded by
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This Standard specifies the requirements for measuring instruments used for phase sequence identification in three-phase distribution systems.
| Committee |
CT 85/66
|
| DocumentType |
Standard
|
| PublisherName |
Comitato Elettrotecnico Italiano
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| IEC 61557-7:1997 | Identical |
| EN 61557-7:1997 | Identical |
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