Incomer Rating of a Small Retail Shop

Will the forum know the supply voltage?

400v is supply voltage. Thanks

You really should have paid attention in class.

Or, maybe you should become an apprentice and study under an electrician with some experience, before striking out on your own.

Have a look at his previous posts……

Dear Friends,

Be professional in comments

Thanks

Contact your utility and ask them to give a list of standard supply ratings normally given by them like-1 ph-15A,30A,60A,3ph-30A,60A,100A,160A,11kV-100kVa,160kVa and so on and select the one which meets your demand. Or give them a load schedule of your premises and ask them to provide a suitable supply based on acceptable diversity and load factors.