CSA C233.1-87-CAN/CSA-1987 Gapless Metal Oxide Surge Arresters for Alternating Current Systems; Electric Power Systems and Equipment First Edition; General Instruction No 1
This Standard applies only to gapless metal oxide surge arresters
of separate mounting or those supplied integrally with other
equipment. The surge arresters are designed to limit voltage
surges in 50 or 60 Hz alternating current power circuits by
pas
CSA C233.1-87-CAN/CSA-1987 history
1987CSA C233.1-87-CAN/CSA-1987 Gapless Metal Oxide Surge Arresters for Alternating Current Systems; Electric Power Systems and Equipment First Edition; General Instruction No 1