New tests added to IEEE Std C62.11-2012: a switching surge energy capability test (thermal energy rating), a repetitive single-impulse withstand capability test, and the inductive voltage drop effects of the internal arrester metal current carrying components determined during the front-of-wave (FOW) discharge voltage test are included in this amendment to IEEE Std C62.22-2009. Keywords: distribution lines, insulation coordination, IEEE C62.11, IEEE C62.22, IEEE C62.22a, lightning, metal-oxide surge arrester, overvoltage, substations, surge arrester, switching surges, transmission lines. |