43 Protection against overcurrent
430.1 Scope
This part of IEC 60364 provides requirements for the protection of live conductors from the
effects of overcurrents.
This standard describes how live conductors are protected by one or more devices for the
automatic disconnection of the supply in the event of overload (Clause 433) and short-circuit
(Clause 434) except in cases where the overcurrent is limited in accordance with Clause 436
or where the conditions described in 433.3 (omission of devices for protection against
overload) or 434.3 (omission of devices for protection against short-circuit) are met.
Coordination of overload protection and short-circuit protection is also covered (Clause 435).