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  • BSI
    BS EN 61557-3:2007 Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures - Loop impedance
    Edition: 2007
    $281.30
    / user per year

Description of BS EN 61557-3:2007 2007

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.

Standard NumberBS EN 61557-3:2007
TitleElectrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures - Loop impedance
StatusWithdrawn
Publication Date2007-06-29
Withdrawn Date2022-07-08
ReplacesBS EN 61557-3:1997
Replaced ByBS EN IEC 61557-3:2022
Identical National Standard OfIEC 61557-3:2007, EN 61557-3:2007
DescriptorsLow voltage, Electrical protection equipment, Safety devices, Type testing, Instructions for use, Electrical measuring instruments, Electrical safety, Electrical testing, Marking, Impedance measurement, Electric load, Low-voltage equipment
ICS29.240.01 Power transmission and distribution networks in general, 29.080.01 Electrical insulation in general, 17.220.20 Measurement of electrical and magnetic quantities
CommitteePEL/85
ISBN978 0 580 50860 8
PublisherBSI
Pages14

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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