How electricity is generated to your home 1. Steam is generated at the electricty plant by the burning of fossil fuels - or at a nuclear or hydroelectric plant. 2. The steam powers a turbine which spins a huge magnet inside a copper wire. Heat energy converts to mechanical energy which then converts to electrical energy in the generator. 3. Elecricity flows from the power plant through wires to the step up transformer. The transformer raises the pressure so it can travel long distances - its raised as high as 756,000 volts 4. The electric current then runs through the power lines to the substation transformer where pressure is lowered to between 2000 and 13000 volts 5. Electricity is then taken through the lines to a pole transfomer - or a transformer box if underground - and pressure is lowered again to between 120 and 240 volts 6. From here electricity comes into your home through a service box, where your meter is located to measure how much you use. Wires take electricty around your home powering your lights and all your other appliance
Electric Sockets and plugs AC power plugs and sockets are devices for removably connecting electricallyoperated devices to the commercial power supply. An electric plug is a male electrical connector with contact prongs to connect mechanically and electrically to slots in the matching female socket Wall sockets, (sometimes also known as power points,[1][2] power sockets, electric receptacles, or electrical outlets) are female electrical connectors that have slots or holes which accept and deliver current to the prongs of inserted plugs. Sockets are designed to accept only matching plugs and reject all others. To reduce the risk of injury or death by electric shock, some plug and socket systems incorporate various safety features and design aspects.
Wiring in a Three-Pin Plugs •
After opening the plug lay the cable along the plug so as to get the required length of outer covering that needs removing.
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Carefully cut round the outer covering taking care not to cut the inner cores.
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Remove the cable clamp and place the outer covering under the clamp and tighten.
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Place the cores into their correct positions:-BROWN - FUSE: BLUE - LEFT HAND PIN: GREEN/YELLOW - EARTH PIN (TOP)
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Cut the cores to the required length then strip the insulation back 5-6mm and connect up making sure that there are NO stray strands.
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Replace the top
Dangers with Mains Circuits Two dangers with mains circuits are: 1. Overloading 2. Short circuits
OVERLOADING It is when an electric plug is connected with many plugs then the plugs can burn
What are the safe precautions when Using electricity 1. Don't stick anything into a plug socket unless it is a plug, this doe not include fingers, pencils or scissors.
2. Do not use wet hands when turning on electrical equipment.
3. Ensure that the plug has the correct fuse rating for the appliance.
4. Ensure that if the appliance needs to be earthed then it is.
5. Ensure that the fuse box has the correct rating for the power requirements of the building.
6. Always turn off the plug sockets when a plug is not in it otherwise your house will be swamped by delta wave radiation.
7. Don't stick anything into a plug socket unless it is a plug, this doe not include fingers, pencils or scissors.
8. Do not use wet hands when turning on electrical equipment.
9. Ensure that the plug has the correct fuse rating for the appliance.
10.Ensure that if the appliance needs to be earthed then it is.
11.Ensure that the fuse box has the correct rating for the power requirements of the building.
12.Always turn off the plug sockets when a plug is not in it otherwise your house will be swamped by delta wave radiation.