7 An effective over-current protection device (e.g. a fuse) must be provided in each phase of the circuit and arranged so as to disconnect the electricity supply to the equipment in the event of overload or short circuit.
(7 An effective over-current protection device; must be provided; L:in each phase of the circuit) (7 An effective over-current protection device; arranged; so as to disconnect the electricity supply to the equipment in the event of overload or short circuit)
7 An effective over-current protection device 7 An effective over-current protection device
must be provided arranged
L:in each phase of the circuit
so as to disconnect the electricity supply to the equipment in the event of overload or short circuit