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IEC 61557-3 Ed. 2.0 Edition 01/2007
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
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Abstract

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.

Status

Standard - Withdrawn

Origin

Technical Committee :
85 : Measuring equipment for electrical and electromagnetic quantities

Implementation

start of the vote on the project      date of ratification (dor)   
end of the vote on the project      date of anouncement (doa)   
start of the vote on the final project      date of publication (dop)   
end of the vote on the final project      date of withdrawal (dow)   


Publication Official Journal
of the Grand-Duchy of Luxembourg
Reference

Relations

Evolutions
IEC 60947-2 Ed. 4.2
IEC 60947-2 Ed. 4.2

International Classification for Standards (ICS codes) :

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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