Section 6(17) in Tamil Nadu Electricity Grid Code, 2005
(17)Schematic Diagram: (i) The user and transmission licensees shall prepare single line schematic diagrams in respect of their system / facility and make the same available to the transmission licensees and the users in order to enable both of them to have requisite information about the system with which they are to get connected.(ii)The following details shall be included in the single line diagrams:(a)HT and EHT equipment, bus bars, incoming and outgoing feeders, control, protection, metering arrangement, length of feeder, size of the conductor and name of the station at the other end of the feeder.(b)AC and DC auxiliary power supply systems. Standby supplies and sources.(c)Connection of distribution systems at El IT sub-stations, showing the areas served by each outgoing feeder.(iii)State Grid Maps showing the complete network of transmission lines shall be prepared, updated and maintained by STU and supplied to the entities requiring the same.
