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A sub main is a distribution board fed from the main distribution board panel normally protected via a CPD.
distribution board
The symbol for The Advisory Board Company in NASDAQ is: ABCO.
power distribution board
It is a device that carried various sizes of fuse to supply power to different areas of the building respectively.
The symbol for The Corporate Executive Board Company in the NYSE is: CEB.
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It is an electrical lighting distribution board that is used in India. It is similar to the lighting distribution panel board used in North American homes.
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Main distribution board
A distribution board is the technical name foræa breaker box, it is used in electrical wiring of buildings.æ It divides and distributes the electricity to the different outlets and is in an enclosure that can be locked for safety.