This guide covers the application of metal-oxide surge arresters (see IEEE Std C62.11TM-2005) to safeguard electric power equipment against the hazards of abnormally high voltage surges of various origins. This application guide does not cover the application of low-voltage surge protective devices below 1000 Valternating current (ac), except when applied to the secondary of a transformer.
Abstract
Revision Standard - Active.This guide covers the application of metal-oxide surge arresters to safeguard electric power equipment, with a nominal operating voltage 1000 V and above, against the hazards of abnormally high voltage surges of various origins. This guide provides information on the characteristics of metal-oxide surge arresters, and the protection of substation equipment, distribution systems, overhead lines, and large electrical machines.