220 kv
380 kv
background
blue hour
boom
cable
communication
current
dawn
dusk
electrical
electricity
energy
engineering
environment
equipment
frame
ground wire
high
industrial
industry
kilovolt
lattice
line
metal
morning
opgw
optical ground wire
phases
pillar
plant
pole
power
pylon
silhouette
sky
steel
sunset
supply
tall
technology
tower
transmission
voltage
wire