ac
background
backup
bar
board
cable
circuit
closeup
connect
connection
cord
danger
dangerous
earthed
electric
electrical
electricity
energy
equipment
extension
hand
isolated
lead
line
lots
multi
multiple
object
outlet
palm
plastic
plug
power
progress
protect
protection
protector
safety
saving
socket
strip
supply
surge
technology
utility
voltage
volts
white
wire