AQA GCSE Combined Science Trilogy · 8464
Specification 6.2.3.2 · Paper 5, Paper 6
Revise: Mains Electricity and WiringMost electrical appliances are connected to the mains using a three-core cable. Each core is a conducting wire with its own insulating covering. The insulation keeps the conductors apart and prevents contact with them; its colour identifies the wire’s job.