Section 17(b) in The Orissa State Electricity Board (General Conditions of Supply) Regulations, 1995
(b)In the case of High Tension Supply, if HT metering set cannot be readily provided and installed, an L.T. metering set shall be provided and connected in the L. T. side of the consumer's transformers and to the readings of the said metering set, will be added the average losses in the transformers calculated as follows :
