blue
business
cable
communication
conductor
construction
current
danger
distribution
electric
electrical
electricity
energetic
energy
engine
engineering
equipment
framework
generation
generator
high
industrial
industry
iron
line
lines
metal
network
pillar
pole
post
power
powerful
pylon
sky
station
steel
structure
supply
tall
technology
tower
transformer
transmission
volt
voltage
watt
watts
wire
wiring