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.
ANSI/IEEE C62.22:2009 history
2009ANSI/IEEE C62.22:2009 Guide for the Application of Metal-Oxide Surge Arresters for Alternating-Current Systems