alarm
arrow
background
beware
bolt
cable
caution
circuit
current
danger
dangerous
design
distribution
electric
electrical
electricity
energy
equipment
flash
hazard
high
icon
illustration
industrial
industry
information
isolated
label
light
lightning
panel
pictogram
power
protection
risk
safety
security
set
shock
sign
supply
symbol
technology
thunder
volt
voltage
warning
wire
yellow