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Standard

IEC 61472-2:2021 ED1

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Zusammenfassung

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.

Produktspezifikationen

  • Standard von IEC
  • Ausgabedatum:
  • Edition: 1
  • Dokumenttyp: IS
  • Seiten
  • Herausgeber: IEC
  • Lieferant: IEC
  • ICS: 13.260
  • ICS: 29.240.99
  • ICS: 29.260.99
  • Internationales Komitee: TC 78