Section 23 in The Orissa State Electricity Board (General Conditions of Supply) Regulations, 1995
23. System of supply.
- The Board's declared voltage and frequency of supply shall be generally as follows :(1)Low tension supply (up to and including 400 volts) Alternating Current-50-cycles.(i)Single phase-230 volts between phase and neutral.(ii)Two or three phase-400 volts between phases.(2)High tension supply (exceeding 650 volts) Alternating Current three phase-50 cycle at 11 KV or 33 KV.(3)Extra High Tension-Alternative Current three phase-50-cycles, 132 KV, 220 KV, 400 KV between phases.(4)The frequency and voltage of the electrical energy delivered at the point of supply to the consumer shall be subject to fluctuations as permissible under the provisions of the Indian Electricity Rules, 1956 as amended from time to time.
