blue
cable
column
connection
construction
current
danger
device
electric
electrical
electricity
energy
engineering
environment
equipment
high
industrial
industry
infrastructure
insulator
line
metal
network
pillar
plant
power
power lines
pylon
row
silhouette
sky
steel
structure
supply
support
tall
technology
tower
transformer
transmission
urban
volt
voltage
watt
wire
wires