S.L. 545.1 Art. 17Mainlinkeddouble or triple pole circuit breaker.

A main linked double or triple pole circuit breaker, with overload trip on each phase conductor or a linked double pole or triple pole switch and fusible cut out of an approved type as directed by the Chairman, shall be provided and fixed by or at the expense of, the consumer immediately beyond, and on the consumer’s side of the meter:

Provided that no such fusible cut out or circuit breaker shall be inserted in the neutral conductor. An earth leakage circuit breaker is to be installed on the installation side and immediately beyond the circuit breaker or switch. This earth leakage circuit breaker is to have a tripping sensitivity of 30 mA maximum leakage current to earth in the case of an installation rated up to 60 Amps. The earth leakage circuit breaker must have means for periodic testing to verify its operation when a current flows to earth. In addition each individual consumer is to provide a separate means of earthing in the form of an earth electrode, installed in a manner approved by the distribution system operator. Water pipes will no longer be considered as a suitable means for earthing. Effective balancing within a margin of ten per centum of the connected load shall be maintained on all installations for lighting, power and heating.