IEC TS 63042-202:2021 

UHV AC transmission systems - Part 202: UHV AC transmission line design


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IEC TS 63042-202:2021(E) provides common rules for the design of overhead transmission lines with the highest voltages of AC transmission systems exceeding 800 kV, so as to provide safety and proper functioning for the intended use.
This technical specification aims to give the main principles for the design of UHV AC overhead transmission lines, mainly including selection of clearance, insulation coordination and insulator strings design, bundle-conductor selection, earth wire/optical ground wires selection, tower and foundation design, environmental consideration. The design criteria apply to new construction, reconstruction and expansion of UHV AC overhead transmission line.

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Additional information

Publication typeTechnical Specification
Publication date2021-10-13
Available language(s)English
TC/SCTC 122 - UHV AC transmission systemsrss
ICS29.240.20 - Power transmission and distribution lines
Stability date  2025
File size9618 KB

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