Section 26(b) in Tamil Nadu Electricity Regulatory Commission Tamil Nadu Electricity Distribution Code
(b)Three-phase 4 wire 415 volts between phases and 240 volts between a phase and neutral for supply to a total connected load exceeding 4000 watts but not exceeding a demand of 112 KW. The consumer may elect to avail supply under any one of the above categories where the connected load does not exceed 4000 watts
