blue
cable
charge
clouds
conductor
danger
electric
electric shock
electrical
electricity
energy
environment
equipment
fence
high
hochspannung
industrial
industry
lebensgefahr
light
line
metal
national
network
power
pylon
renewable
shock
sign
silhouette
sky
steel
structure
sun
sunrise
sunset
technology
tension
tower
view
volt
voltage
warning
watt
wire