Question

What is the function of the distribution box in a domestic electrical circuit?
A) It distributes voltages across appliances as per need.
B) It provides isolation between sets of appliances and improves reliability.
C) It distributes losses among all parts of the circuit equally.
D) It allows user to manually distributes power as per his need

Answer 1

Hint: A distribution box is also known as a panel board. It is a component of an electricity supply system. The main current comes to the distribution box and then it gets distributed among all the components connected to it.

Complete answer:

Distribution board is the main power supply system in domestic and commercial use. The main cable of current comes into the distribution box and then through breakers it gets distributed in the secondary components eg. - Fans, bulbs etc.
In the distribution box there is a component fuse. Fuse does not allow extra current to pass through the circuit. In cases when there is extra current the fuse breaks the circuit and shuts down the flow of current. In this way it saves all the devices or appliances connected in the circuit. So the distribution box prevents any kind of danger and saves the house.
During the installation of the distribution box there should not be any kind of error and there should be enough space for all the wires. A good quality distribution box has a long life and it ensures the safety of devices and house. Distribution box in domestic electric circuits provides isolation between appliances and allows them to work properly.
Result- from above explanation; we see that the distribution box provides isolation between sets of appliances and improves reliability.

Note: Distribution boxes are not only used in domestic means but for industrial purposes also. Following are some types of distribution boxes that are used in industries:
1. Motor Control Centers (MCCs)
2. User friendly Human Machine Interface (HMI)
3. Industrial Hydraulic Control Panels
4. Operator Panels
5. Programmable Logic Controller (PLC) Panels
6. Industrial Hydraulic Control Panels