blue
cable
charging
city
concrete
connections
contact
crossing
current
danger
dangerous
deliver
doves
electric
electrical
electricity
energy
environment
frame
framework
fuse
high
industrial
industry
line
mast
modern
perch
perched
pigeons
pillar
pole
post
power
shock
silhouette
sky
small
structure
supply
support
tower
travel
urban
volt
voltage
wire