Question

Which of the following is the best option while considering the safety of household electric appliances?
A. We should use non ISI marked MCBs
B. We should use wire strip as fuse
C. Use conductor with high melting point in fuse
D. We should use ISI marked MCBs

Answer 1

Hint: Many of the energy services round the house use electricity to operate. It is extraordinarily essential to have diverse protection devices to defend from fire and electrocution. Industrial electricity use has comparable problems. This explanation describes those electric protection gadgets. Namely, fuses, circuit breakers, and floor fault circuit interrupters.

Complete step by step answer:
A fuse is an electrical protection device that has the functionality to defend an electric powered circuit from excessive electric powered current. It is designed to permit current through the circuit, however with inside the occasion that the contemporary exceeds a few most price it'll open, severing the circuit. Circuit breakers are gadgets that defend circuits from overloading contemporary conditions. They do the same process as fuses, however they may be now no longer destroyed while activated. They are greater high-priced to install than fuses.
A ground fault circuit interrupter is a device specially designed to discover a tiny mismatch in currents (going into and out of the circuit), so that you can save you electrocution. They are obligatory in toilets and kitchens, and everywhere else in a residence where water may also be available touch with an electric powered circuit.
A circuit breaker is an automatically operated electrical switch which is designed for the protection of electrical circuits from damage caused by excess current from an overloading and short circuiting. Its basic function is to interrupt or cut current flow after a fault is detected. We Should use ISI marked MCBs.

Hence the correct option is D.

Note: Never touch an electric appliance while standing on a wet floor or if your hands are wet. And always buy standard ISI marked MCBs and other electric interrupt devices.