alarm
alert
arrow
attention
background
cable
caution
current
danger
dangerous
electric
electrical
electricity
energy
equipment
flash
hazard
high
home
icon
illustration
industrial
industry
information
isolated
lightning
outlet
plug
power
protect
protection
risk
safety
security
shock
short
sign
supply
symbol
system
technology
thunder
triangle
voltage
warning
white
wire
work
yellow