20.99 WD approved for registration as CD Nov 10, 2023
CD Dec 31, 2024
IEC
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
20.99
WD approved for registration as CD
Nov 10, 2023