Explain the structure of domestic circuit.
Answers
Answer:
In our homes, either the overhead electric poles or underground cables support the power supply flowing through the main supply. One of the wires in this supply covered with insulation in the color red is the live wire (or positive), and another wire colored black is the neutral wire (or negative). At the meter-board, these wires pass into an electric meter through the main fuse. The main switch, live wire, and the neutral wire are in connection to the line wires in our homes; these wires then supply electricity to separate electric circuits within the house.
Hope it will help you....
We receive power in our house through a main supply, commonly called mains.
It is supplied through overhead cables or underground cables.
There are 3 types of wires in domestic circuits : Earth Wire, Live Wire, Neutral Wire.
Earth wire: It is generally green in color. It is usually connected to a metal plate placed in the earth near the house as a safety measure to ground gadgets that have a metallic body. (refrigerator, toaster). In case of charges leaking on to the metallic body, the charges gets grounded and thus prevent shocks.
Live wire: Positive wire generally red in color
Neutral wire: Negative wire generally black in color
The potential difference (or voltage) supplied in our country is 220V
When they come into our houses, they pass through a circuit called a Fuse. Whenever there is a high voltage, voltage fluctuation, overloading, short circuit the fuse melts and prevents the high voltage reaching the electric appliance. This saves the electrical gadget.
Then through the metre board in the house, these wires pass on to different electric gadgets
Generally 2 types of electric circuits are used at homes
15A : Appliances which have higher power ratings. (geysers, refrigerators, ACs)
5A: Appliances which have lower power ratings. (TV, bulbs, fans)
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