Answer Posted / vijaykumarht

Depending on the maximum load current the busbar size will
be determined. Usually for copper it is taken as 2 to 4 Amps
per square mm and for alluminium it is taken as 1 to 2 Amps
per sqmm.
The normal availability and design of the busbars is
25*5mm,50*5mm,50*10mm,60*10mm.

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