aerial
background
cable
cabling
catenary
construction
contact
electric
electrical
electricity
electrified
energize
energy
environment
high
infrastructure
installations
insulator
iron
line
live wire
mast
metal
network
overhead
pattern
pole
power
pylon
rail
railway
route
sky
steel
supply
system
tower
traction
train
transport
transportation
trolley
voltage
wire
wiring