Final answer:
A non-time delay fuse is also known as a fast-acting or quick-blow fuse. It protects electrical circuits by melting quickly when there is excess current, immediately responding to overcurrent to prevent damage.
Step-by-step explanation:
Another name for a non-time delay fuse is a fast-acting fuse or quick-blow fuse. These fuses are designed to protect electrical circuits by melting quickly when excess current flows through them. Unlike time-delay fuses, which can withstand a temporary surge or overload, fast-acting fuses respond immediately to overcurrent conditions to prevent possible damage to the circuit components.
When used in an electrical circuit, if the current exceeds the rated capacity of the conductor within the fuse, the conductor heats up due to the conversion of kinetic energy into thermal energy. The wire has a low melting point and is under tension, designed to melt and sever the electrical connection, thus stopping the flow of electricity and protecting the circuit from further damage. After a fuse has operated, it is destroyed and must be replaced.