JB／T9662-1999 IEC60439—2。
 CFW-2A Closed Plug-in Busway (the busbar) is a new kind distribution equipment for modern

high building and large industry building．Distribution of Busbar compact with traditional cable have following characters: large trans current，huge over-load，beautiful ourshell，closed structure，good exchanging，easy to branch power resource,etc．Busbar alsohas functions of good insulation and work & thermal stable．The busbar is economic for its short period of insulation, easy to be repaired and safety of power supply. The busbar meet standards of: JB/T9662-1999，IEC60439-2.