13
13a
amp
background
box
british
cable
circuit
consumer
correctly
current
device
domestic
earth
electric
electrical
electrician
england
english
european
expert
fuse
health
interior
live
neutral
plug
power
rcd
residual
safe
safety
socket
supply
test
tester
thirteen
threepin
uk
unit
voltage
western
white
wire
wiring
working