Electricity in the house
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Electricity in the house

Electricity is now such an integral part of everyday life that we often do not attach much importance to it. However, you wouldn't be reading this without electricity! Here is some information about basic electrical engineering concepts that apply to most households.

Wires in a plug

Electricity in the houseThe three pins/pins on a standard UK plug have different purposes. If you were to remove the back of the plug, the blue neutral wire would be on the left. The earth/earth wire will be green and yellow and located on the top contact, and the brown live wire will be on the right and attached to the contact via a fuse. On the body of the plug, the terminals are often marked. with E, L and N (earth, live and neutral) or with the colors of the corresponding wires.

Although electrons move back and forth in AC circuits, there is only one hot wire because the blue wire is grounded (neutralized) upon entering the property before it reaches any outlets.

Electricity in the houseThe ports in the socket correspond to the wires in the plug. The three-prong UK plug with earth and fuse is officially known as BS 1363.

Electricity levels in the network

Electricity in the houseIn the UK, there is a standardization of electricity levels, which means household voltage is around 230V and has a frequency of 50Hz.Electricity in the house

What is household electricity used for?

In a typical British household, most electricity is consumed for entertainment purposes - TVs, computers, sound systems, game consoles, etc. The next three main uses are heating, lighting and cooling.

Short circuits

Electricity in the houseA short circuit occurs when more than expected current flows between two points in a circuit, where there is little to no resistance (where there should be no path). This may result in damage and overheating. A short circuit can be caused by loosening and/or contact of one wire with another, or if the resistance of the wire is too low, it can happen to any home appliance. The opposite of a short circuit is an open circuit where no current flows.

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