12. Long answer questions IV

The vital components of the main box are

 
The meter keeps track of how much resistivity is utilisedelectricity is usedelectricity is wasted.

A fuse box usually contains a cable or MCBfuse wire or a miniature circuit breaker switch or a miniature circuit breaker . The purpose of a fuse wire or a miniature circuit breaker (MCB) is to safeguard electrical appliances easily break like an electric iron or hairdryer from overloading due to excessive current.

 

A miniature circuit breaker (MCB) is a type of switch that can be operated automatically and manuallyonly manuallyonly automatically. When the current exceeds the safety limit, an electromagnetinsulatorconductor attracts a spring attached to the switch. As a result, the switch is automatically turned off, and the circuit is broken. Thus, the electrical appliances are protected.

 

The switch is turned on again, and the circuit is completed. Always use an MCB with an ISI mark on it. Nowadays, MCB's are improvised with a built-in mechanism to restart automatically.

 

Two insulated wires provide electricity from the power plant to the homes. One of these two wires has red insulation and is referred to as the insulation wirelive wireearth wire. The other wire, known as the earth wirelive wireneutral wire, has green insulationblack insulationred insulation. The electricity delivered for domestic purposes in our homes is an alternating current with a \(110\ V\)\(220\ V\)\(240\ V\) electric potential.

The live and neutral wires enter the fuse switchmain switchmain box, where the live wire is linked to the main fuse. These live and neutral wires enter the electricity meter, then runs into the main boxfuse switchmain switch. This main switch helps to turn off the power supplyfilter the power supply turn on the power supply  whenever needed. Both the live and neutral wires are linked to live wires of two distinct circuits after passing through the main switch.