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bus duct[′bəs ‚dəkt]
An enclosed metal unit containing copper or aluminum busbars for distribution of large amounts of power between components of the distribution system.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
bus duct, busway
A prefabricated conduit which is used to enclose and protect bus running through it.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.