SS EN 61558-2-4 Ed. 2 (2009)现行
Safety Of Power Transformers, Power Supply Units And Similar - Part 2-4: Particular Requirements For Isolating Transformers For General Use
出版：Standardiserings-Kommissionen I Sverige
专家解读视频
Pertains to stationary or portable, single-phase or polyphase, aircooled isolating transformers, associated or otherwise, having a rated supply voltage not exceeding 1000 V a.c., a rated frequency not exceeding 500 Hz, the rated output not exceeding: - 25 kVA for single-phase transformers; - 40 kVA for polyphase transformers.
1ED 1997 Edition is still active. (02/2012)
DIN EN 61558-2-4 (2009-12) - Identical
UNE EN 61558-2-4:2010 - Identical
SN EN 61558-2-4:1997 - Identical
I.S. EN 61558-2-4:2009 - Identical
NF EN 61558-2-4:2009 - Identical
BS EN 61558-2-4:2009 - Identical
DIN EN 61558-2-4:2009 - Identical
