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Low-voltage auxiliary power systems - Part 1-1: Terminology
40.99 Full report circulated: DIS approved for registration as FDIS
Low-voltage auxiliary power systems - Part 2-1: Design criteria - General requirements
30.60 Close of voting/ comment period
Low-voltage auxiliary power systems - Part 2-2: Design criteria - Low-voltage d.c. auxiliary power systems for substations
30.60 Close of voting/ comment period
Low-voltage auxiliary power systems – Part 2-3: Design criteria – Low-voltage a.c. auxiliary power systems for substations
20.99 WD approved for registration as CD
