STP and WTP operation

Namaskara. Please clarify on the following issues

1. Is it mandatory to provide standby pump drives in STP and WTP to ensure reliability and continuous operation?

2 If so, should the sanctioned Electricity correspond to only loads connected for normal operation or should the sanctioned power be increased to include all the standby loads?

3 If the sanctioned load corresponds to only connected loads for normal operation, not including standby loads, according to the Electricity act, can penalty be levied citing unauthorised connected load.

Thank you

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