abstract
aerial
amperage
background
black
cable
circuit
connect
connection
dark
diagram
electric
electrical
electrician
electricity
energy
generator
high
icon
illustration
industrial
isolated
lantern
lighting
line
low
outline
pole
power
pylon
rainbow
sign
star
steel
symbol
tall
technology
telegraph
telephone
tower
transfer
transformer
urban
vector
volt
voltage
watt
white
wire