Mains electricity in the home

ryansimon
Mind Map by ryansimon, updated more than 1 year ago
ryansimon
Created by ryansimon about 7 years ago
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Mind Map on Mains electricity in the home, created by ryansimon on 04/22/2013.

Resource summary

Mains electricity in the home
1 3 wires, earth wire, neutral wire and live wire
1.1 Earth wire (green and yellow) if there is a fault and the case becomes live, current passes along this wire, making the device safe
1.2 Live wire (brown) provides energy to the device. Has a potential difference of 230v
1.3 Neutral wire (blue) completes the circuit. Has a potential difference of 0v
2 It is safe to use two core cables when the case itself is an insulator. It could be used safely in plastic kettes, hair dryer and a t.v.
3 If the diameter of a cable is smaller then the current cant flow as much and it will also heat up quicker which could cause a fire
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