Working of Fuse
Working of Fuse
Points : Working of Fuse, Material of Fuse, Definition of Fuse
Fuse
Fuse is a wire of short length or thin strip of material having low melting point and is
inserted in an electric circuit as protective device to the flow of an excessive current through
the circuit (i.e. current greater than the maximum current allowed to flow through the circuit
in normal condition).
Material
Tin, lead, zinc, and allow of lead and tin, silver copper, aluminum etc. materials can be used
for fuse wire.
Mostly, lead-tin allow is used for 10-amp current rating fuse.
Working of Fuse
Under normal working conditions the current flowing through the circuit is within safe limits
but when some faults, such as short circuit occurs or when load more than limiting value the
fuse wire gets heated up, melts and breaks the circuit. It thus protects a machine or apparatus
from being damaged due to excessive current.
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