Wiring and stuff 0.0 / 5 ? PhysicsElectricityGCSEAQA Created by: asho glenoCreated on: 09-04-15 18:55 A fuse is a thin piece of wire that... allows a current to flow through it 1 of 18 Above a certain value, the fuse... overheats and melts 2 of 18 The wire burning is safer as... it doesn't burn the whole appliance 3 of 18 It prevents more current to... flow through the appliance 4 of 18 Plugs, sockets and cables and appliances are made of... hard-wearing electrical insulators 5 of 18 Sockets are made out of... stiff plastic materials with wires inside 6 of 18 The longest pin of a three pin plug is designed so that it will make contact with the... earth wire of a wall socket circuit 7 of 18 This is so that when you plug in an appliance with a metal casing to a wall socket... the case is automatically earthed 8 of 18 Plugs have cases made out of... stiff plastic 9 of 18 The pins are made of brass because... it is a good conductor and doesn't rust/oxidise 10 of 18 The inside of the case is shaped so that the wires and pins... cannot touch each other when the plug is sealed 11 of 18 The fuse placed between the live pin and the live wire will... cut the live wire off if there is too much current passing through it 12 of 18 Cables used for mains appliances consist of two or three... insulated copper wires surrounded by an outer layer of rubber or flexible plastic material 13 of 18 Copper is a good... conductor 14 of 18 Plastic is a good insulator and... prevents anyone touching the cable (prevents electric shocks) 15 of 18 Two-core cables are used for... appliances which have plastic cases 16 of 18 The LIVE wire is connected to the... live pin 17 of 18 The NEUTRAL wire is connected to the... neutral pin 18 of 18
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