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  • BSI
    BS EN IEC 61557-5:2021 Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures - Resistance to earth
    Edition: 2022
    $411.69
    / user per year

Description of BS EN IEC 61557-5:2021 2022

IEC 61557-5:2019 is available as IEC 61557-5:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 61557-5:2019 specifies the requirements applicable to measuring equipment for measuring the resistance to earth using an AC voltage. IEC 61557-5:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) definitions and symbols in Clause 3 modified;
b) subclauses in Clause 4 restructured and aligned with other parts of the series;
c) limits for reduced voltages 25 V RMS or 35 V peak removed from 4.5;
d) requirements for clamps added;
e) marking for rated voltages to earth and measurement category added to Clause 5;
f) warning about absence of hazardous voltage added in Clause 5;
g) the term "percentage operating uncertainty" replaced by "operating uncertainty" in Clause 6;
h) equation for uncertainty corrected in Table 1;
i) new Annex A on test measurements with loop clamps added.

Standard NumberBS EN IEC 61557-5:2021
TitleElectrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures - Resistance to earth
StatusDefinitive
Publication Date2022-05-19
ReplacesBS EN 61557-5:2007
Identical National Standard OfEN 61557-5 Ed.3.0, IEC 61557-5 Ed.3.0
DescriptorsElectrical measuring instruments, Earthing, Frequencies, Electrical protection equipment, Electrical safety, Low voltage, Marking, Low-voltage equipment, Electrical testing, Type testing, Resistance measurement, Safety devices, Instructions for use
ICS29.240.01 Power transmission and distribution networks in general, 17.220.20 Measurement of electrical and magnetic quantities, 29.080.01 Electrical insulation in general
CommitteePEL/85
ISBN978 0 580 99194 3
PublisherBSI
Pages24

The following editions for this book are also available...

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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