background
blue
cable
communication
connection
construction
current
danger
distribution
electric
electrical
electricity
energy
engineering
environment
equipment
frame
generation
grid
high
industrial
industry
infrastructure
insulator
landscape
light
line
lines
mast
metal
network
plant
pole
power
pylon
sky
station
steel
structure
supply
support
tall
technology
tower
transformer
transmission
volt
voltage
watt
wire