
1) Conductor
Found on
https://www.crosswordclues.com/clue/busbar

In electrical power distribution, a busbar (also spelled bus bar, or sometimes as buss bar or bussbar, with the term bus being a contraction of the Latin omnibus, `for all`) is a strip or bar of copper, brass or aluminium that conducts electricity within a switchboard, distribution board, substation, battery bank, or other electrical apparatus. .....
Found on
http://en.wikipedia.org/wiki/Busbar

A busbar in electrical power distribution refers to thick strips of copper or aluminium that conduct electricity within a switchboard, fuel cell, distribution board, substation, or other electrical apparatus.
Found on
http://en.wikipedia.org/wiki/Glossary_of_fuel_cell_terms

low-impedance conductor to which several electric circuits can be connected at separate points NOTE - In many cases, the busbar consists of a bar.
Found on
http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=151-12-30

a low impedance conductor to which several electric circuits can be separately connected
Found on
http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=605-02-01

A rigid or flexible electrical connection for conveying heavy current to a furnace, aluminium smelting cell or electro refinery. Usually made of copper or aluminium.
Found on
http://www.metalbulletin.com/Glossary.html

[
n] - an electrical conductor that makes a common connection between several circuits
Found on
http://www.webdictionary.co.uk/definition.php?query=busbar

Copper bar or section used for carrying heavy currents, generally rigid when compared to cables. See also: Copper.
Found on
https://www.encyclo.co.uk/local/20687
noun an electrical conductor that makes a common connection between several circuits; `the busbar in this computer can transmit data either way between any two components of the system`
Found on
https://www.encyclo.co.uk/local/20974

The power conduit of an electric power plant; the starting point of the electric transmission system.
Found on
https://www.encyclo.co.uk/local/22819
No exact match found.