30.20 Oct 17, 2025
PCC Jan 9, 2026
IEC
TC 37
International Standard
This standard defines the design/type tests, routine test, acceptance tests and classifications for line surge arresters (LSA). The arresters covered by this standard are Non-Gapped Line Arresters (NGLA) and Externally Gapped Line Arresters (EGLA) for use on AC or DC transmission and distribution power lines with system voltages > 1kV.
IN_DEVELOPMENT
IEC/IEEE 60099-11 ED1
30.20
CD study/ballot initiated
Oct 17, 2025
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