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Rajni

In electrical power distribution, a busbar is a strip of copper or aluminium that conducts electricity within a switchboard, distribution board, substation or other electrical apparatus. The size of the busbar determines the maximum amount of current that can be safely carried. Busbars can have a cross-sectional area of as little as 10 mm2 but electrical substations may use metal tubes of 50 mm in diameter (1,963 mm2) or more as busbars. An aluminum smelter will have very large busbars used to carry tens of thousands of amperes to the electrochemical cells that produce aluminum from molten salts.