Question

• What are safety devices in a household circuit?
• Name the different safety devices used in a circuit.
• Explain different ways in which safety devices keep household safe from electrical fires.

Answer 1

Answer:

1)}]

• fuses ,circuit breaker and ground fault, circuit interrupter are the safety devices in a household circuit
• fuses and circuit breaker are the connection point between individual houses

2)}]

• fuse, circuit breaker ,ground fault ,circuit interrupter

3)}]

• Before any short circuit the fuse help to shutdown the electrical supply between home appliances

Explanation:

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Answer 2

Answer:

fuse,MCB,ELCB

MCB work on the principle when a current flow in a circuit exceed a set value it will break the circuit and protect the devices in the circuit

fuse also work similar to MCB but it break the circuit by blown off the fuse to make circuit healthy we need to replace the blown out fuse

both fuse and MCB provide protection for overcurrent

ELCB provided protection to earth leakage in a circuit .