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IEC 61557-3:2007 ED2

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 3: Loop impedance

Publication date:   Jan 29, 2007

General information

99.60 Withdrawal effective   Jul 26, 2019

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IEC

TC 85

International Standard

17.220.20   Measurement of electrical and magnetic quantities | 29.080.01   Electrical insulation in general | 29.240.01   Power transmission and distribution networks in general

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Scope

This part of IEC 61557 specifies the requirements applicable to equipment for measuring the loop impedance between a phase conductor and the protective conductor or between a phase conductor and neutral or between two phase conductors by using the voltage drop when the circuit under test is loaded. This second edition cancels and replaces the first edition published in 1997. This edition constitutes a technical revision. The following changes were made with respect to the previous edition: a) definitions complemented; b) revision of some requirements; c) addition of information on operating instructions; d) addition of new influence quantities E9 and E10.

Life cycle

PREVIOUSLY

WITHDRAWN
IEC 61557-3:1997 ED1

NOW

WITHDRAWN
IEC 61557-3:2007 ED2
99.60 Withdrawal effective
Jul 26, 2019

REVISED BY

PUBLISHED
IEC 61557-3:2019 ED3