This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. An electrical conductor that carries a large current, especially one that is part of a power distribution system ; typically a thick strip, or a tube, of copper or aluminium.

n. an electrical conductor that makes a common connection between several circuits.

n. A system of conductors, in an electric generating-station, on which the power of all the generators is collected for distribution into the system, or (in an electric receiving-station) on which the power from the generating-station is received for distribution to the apparatus consuming it.

n. an electrical conductor that makes a common connection between several circuits

"The cause of this delay is due to several factors such as implementation of a new enhanced protection system for the busbar and magnet splices, installation of new pressure relief valves to reduce the collateral damage in case of a repeat incident, application of more stringent safety constraints, and scheduling constraints associated with helium transfer and storage."

bus-bar   

conductor   

bus