access
appliance
background
black
block
blockade
blockout
cable
circuit
closeup
communication
computer
concepts
connect
connection
connector
cord
current
danger
electric
electrical
electricity
electronics
energy
equipment
extension
hack
internet
isolated
knot
line
locked
plug
power
problem
prong
safety
security
socket
splitter
switch
symbol
technology
tied
twisted
tying
white
wire
wired
wireless