This standard applies to metal-oxide surge arresters designed to repeatedly limit the voltage surges on 48 Hz to 62 Hz power circuits by passing surge discharge current and automatically limiting the flow of system power current. This standard applies to devices for separate mounting and to those supplied integrally with other equipment.
IEEE C62.11-1993
$73.00
IEEE Standard for Metal-Oxide Surge Arresters for Alternating Current Power Circuits