IEC 61472-2:2021
Current
The latest, up-to-date edition.
Live working - Minimum approach distances - Part 2: Method of determination of the electrical component distance for AC systems from 1,0 kV to 72,5 kV
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09-03-2021
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.
| Committee |
TC 78
|
| DocumentType |
Standard
|
| ISBN |
978-2-8322-9220-4
|
| Pages |
32
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Standards | Relationship |
| BS EN IEC 61472-2:2021 | Identical |
| SS-EN IEC 61472-2, UTG 1:2022 | Identical |
| VDE 0682-100-2:2022-08 | Identical |
| DIN EN IEC 61472-2:2022-08 | Identical |
| NF EN IEC 61472-2:2021 | Identical |
| IS 14956 : Part 2 : 2025 | Identical |
| CEI EN IEC 61472-2:2022-01 | Identical |
| I.S. EN IEC 61472-2:2021 | Equivalent |
| EN IEC 61472-2:2021 | Identical |
| I.S. EN IEC 61472-2:2021 | Identical |
| NEN-EN-IEC 61472-2:2021 | Identical |
| UNE-EN IEC 61472-2:2021 | Identical |
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