blue
cable
call
charge
city
communication
conductor
connection
current
danger
distribution
electric
electrical
electricity
energy
engineering
gray
grid
high
industrial
industry
line
lines
network
object
pillar
pole
poles
post
power
powerlines
pylon
sky
space
station
steel
structure
supply
system
technology
telephone
tension
tower
transformer
transmission
transmit
utility
voltage
wire