Electricity in the home

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Pg94
Adam Collinge
Flashcards by Adam Collinge, updated more than 1 year ago
Adam Collinge
Created by Adam Collinge over 10 years ago
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Question Answer
Give 9 examples of hazards in the home 1) Long cables 2) Frayed cables 3) Cables in contact with something hot or wet 4) Water near sockets 5) Shoving objects into sockets 6) Damaged plugs 7) Too many plugs in one socket 8) Lighting sockets without bulbs in 9) Appliances without their cover on
Name the three wires in a plug 1) Earth wire 2) Neutral wire 3) Live wire
What colour is the Live wire? Brown
What does a live wire do in a mains supply? Alternate between a high +ve and -ve voltage
What colour is the neutral wire? Blue
Which two wires does electricity normally flow thru? Neutral and live wires
What colour is the earth wire? Green and yellow
How do earth wires make people safer? It works together with the fuse to prevent fire and shock. It is attached to the metal casing of the plug and carries the electricity to the earth should the live and neutral wire tough the metal case
Which direction does the brown wire go to? The right
Which direction does the blue wire go to? The left
Which direction does the green and yellow wire go to? The top
List four common problems about plugs? 1) Wires are too short or long 2) Wires routed incorrectly 3) Cable grip not fastened 4) Insulation stripped back too far
Give two features of the plug 1) The metal parts are made from copper and brass because they conduct well 2) The case, gable grip and insulation are made out of rubber or plastic as they're good, flexible insulators
Give three safety precautions to do whilst wiring a plug 1) Right colored wire to right area 2) No bare wires showing 3) Cable grip tightly fastened over the cable outer layer
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