Historical
IEEE Std C62.11-2005
Standard for Metal-Oxide Surge Arresters for AC Power Circuits (> 1 kV)
Applies to metal-oxide surge arresters designed to repeatedly limit the voltage surges on 48 Hz to 62 Hz power circuits (>1000 V) by passing surge discharge current and automatcially limiting the flow of system power current. Applies to devices for separate mounting and to those supplied integrally with other equipment.
Institute of Electrical and Electronics Engineers [ieee]