Standard

IEC 61472-2:2021 ED1

Mar 2021 Current

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Language English/French

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Abstract

IEC 61472-2:2021 specifies a method for determining the electrical component of the minimum approach distances for live working, for AC systems 1 kV up to and including 72,5 kV. This document addresses system overvoltages and the working air distances between equipment and/or workers at different potentials. The withstand voltage and minimum approach distances determined by the method described in this document can be used only if the following working conditions prevail: workers are trained for, and skilled in, working live lines or close to live conductors or equipment; the operating conditions are adjusted so that the statistical overvoltage does not exceed the value selected for the determination of the required withstand voltage; transient overvoltages are the determining overvoltages; tool insulation has no continuous film of moisture present on the surface; no lightning is observed within 10 km of the work site; allowance is made for the effect of the conducting components of tools.

Products specifications

Standard from IEC
Published: March 9 2021
Edition: 1
Document type: IS
Pages
ISBN: 9782832292204

Publisher: IEC
Distributor: IEC
ICS: 13.260
ICS: 29.240.99
ICS: 29.260.99
International TC: TC 78

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Abstract

Products specifications