Why link is provided in neutral of an ac circuit and fuse in pharm of ac circuit?
A link is provided in the neutral of an AC circuit to terminate neutral wires, and a fuse is connected to the live wire to protect the circuit from overcurrent
Neutral link
Neutral link is the end contact for the neutral wires in a circuit.
A construction of a neutral link may differ with the number of the neutral terminations.
Fuse
A fuse is defined as electrical apparatus that provides an electrical circuit protection from overcurrent.
It is of a wire or strip of metal that melts when there is too much current that passes through it, preventing or interrupting the current.
A fuse is usually fitted across the live wire so that the socket or the appliance is unsafe to touch when disconnected.
If a fuse were connected to the neutral wire the appliance will remain linked to the high potential point of supply through the live wire, this will shock a person if he touches the appliance.