Section 121(5) in The Indian Electricity Rules, 1956
(5)[ Whenever required by the Inspector the motor shall be controlled by a switchgear to disconnect automatically the supply in the event of conditions of over-current, over-voltage and single phasing.] [ Inserted by G.S.R. 137, dated 29.1.1983 (w.e.f. 12.2.1983).]
