blue
cable
construction
current
danger
distribution
electric
electrical
electricity
electricity pylon
energetic
energy
engine
engineering
environment
equipment
framework
generator
grid
high
high voltage
industrial
industry
insulation
line
lines
metal
pillar
poles
post
power
pylon
sky
station
steel
structure
supply
system
technology
tension
tower
transformer
transmission
utilities
volt
voltage
watt
wire
wiring