CAN/CSA-E61558-2-1-03 (R2017)
Replacement:
This part 2 of IEC 61558 applies to stationary or portable, single-phase or polyphase, aircooled separating transformers, associated or not, having a rated supply voltage not exceeding 1000 V a.c., a rated frequency not exceeding 500 Hz, and a rated output not exceeding: . 1 kVA for single-phase transformers; . 5 kVA for polyphase transformers.