Section 30(4) in Tamil Nadu Electricity Regulatory Commission Tamil Nadu Electricity Distribution Code
(4)The consumer must in all cases provide quick-break linked switches and a main fuse/ MCB on each live conductor except the earthed neutral. The linked switch must be erected within a metre of the Licensee's meter board or in such other position as may be required/ approved by the Engineer. Where a conductor forming part of the consumer's system is to be connected to the Licensee's earthed neutral conductor, an indication of a permanent nature shall be provided by the consumer at the point where such connection is to be made to enable the conductor to be distinguished from any live conductor. The consumer shall provide a cable loop of at least one meter for each connection to the Licensee's meter board in the same room. In the case of High Tension supplies, suitable circuit breakers must be installed on the low-tension side of the transformer or on each of the individual low-tension feeder.
