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CEI EN 61557-3:1998

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 - Equipment for testing, measuring or monitoring of protective measures -Part 3: Loop impedance

Published date

01-08-1998

Superseded date

18-09-2025

Superseded by

CEI EN 61557-3:2007-07

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This standard specifies the requirements applicable to equipment for measuring loop impedance between a phase conductor and the protective conductor, or between a phase conductor and the neutral conductor, or between two phase conductors; the measurement is made using the voltage drop that occurs when the circuit under test is loaded.

Committee
CT 85/66
DocumentType
Standard
PublisherName
Comitato Elettrotecnico Italiano
Status
Superseded
SupersededBy

Standards Relationship
IEC 61557-3:1997 Identical
EN 61557-3:1997 Identical

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