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Homepage>BS Standards>13 ENVIRONMENT. HEALTH PROTECTION. SAFETY>13.260 Protection against electric shock>BS EN IEC 61472-2:2021 Live working. Minimum approach distances Method of determination of the electrical component distance for AC systems from 1,0 kV to 72,5 kV
immediate downloadReleased: 2021-05-11
BS EN IEC 61472-2:2021 Live working. Minimum approach distances Method of determination of the electrical component distance for AC systems from 1,0 kV to 72,5 kV

BS EN IEC 61472-2:2021

Live working. Minimum approach distances Method of determination of the electrical component distance for AC systems from 1,0 kV to 72,5 kV

CURRENCY
LANGUAGE
English
Standard number:BS EN IEC 61472-2:2021
Pages:22
Released:2021-05-11
ISBN:978 0 539 02070 0
Status:Standard
DESCRIPTION

BS EN IEC 61472-2:2021


This standard BS EN IEC 61472-2:2021 Live working. Minimum approach distances is classified in these ICS categories:
  • 13.260 Protection against electric shock. Live working
  • 29.240.99 Other equipment related to power transmission and distribution networks
  • 29.260.99 Other electrical equipment for working in special conditions
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.

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