Where there is an electrical connection required from one feeder to many feeder , then you need a reference or grid from where the loads can be distributed.
This is an interesting question. I will assume you refer to bus bars - as a separate component - that connect two pieces of equipment, and not as an integral componet of a device such as a...
A busbar is a length of flat, rectangular-section, copper used as a common point of connection for a number of electrical conductors that share the same potential. The term has the same derivation as...
