background
blue
cable
circuit
clouds
communicate
contact
current
danger
distribution
electric
electrical
electricity
energy
engineering
equipment
high
industrial
industry
infrastructure
insulation
junction
light
line
metal
network
outdoor
pillar
pole
power
powerful
pylon
sky
spark
station
structure
substation
supply
system
technology
telephone
tension
transformer
transmission
tree
urban
volt
voltage
web
wire