Bus duct

Bus duct inside an electrical closet in Mississauga Civic Centre, firestopped along with electrical conduit using firestop mortar.

1992 Bus duct segment with internal factory firestop that was replaced prior to fire testing with firestop mortar. To supply such systems, the bus duct manufacturer had to know where the duct penetrated fire separations required to have a fire-resistance rating.

In electrical power distribution, a bus duct (also called busway), is a sheet metal duct containing either copper or aluminium busbars for the purpose of conducting a substantial current of electricity. It is an alternative means of conducting electricity to power cables or cable bus.

单词	Bus duct
释义	Bus duct 英语百科 Bus duct In electrical power distribution, a bus duct (also called busway), is a sheet metal duct containing either copper or aluminium busbars for the purpose of conducting a substantial current of electricity. It is an alternative means of conducting electricity to power cables or cable bus.
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