yes no problem
A sub main is a distribution board fed from the main distribution board panel normally protected via a CPD.
A certified electrician builds the service distribution to code specifications. An electrical inspector inspects the job and when it is approved he submits a declaration to the utility company for connection to the electrical grid.
4 pole, 5 wire
distribution board
power distribution board
It is a device that carried various sizes of fuse to supply power to different areas of the building respectively.
1. Flag pole 2. crane 3. engines 4. chain fans 5. board lifts
main db using mcb sub main db using mccb that is deference
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.
give marks distribution of subject physics
Main distribution board