accident
alert
area
attention
cable
caution
construction
damage
danger
dangerous
distribution
electric
electrical
electrician
electricity
energy
equipment
hardhat
hazard
hazardous
high
icon
illustration
industrial
industry
labor
lightning
line
lineman
people
person
power
professional
protection
protective
repairman
risk
safety
security
service
shock
sign
symbol
volt
voltage
warning
wires
wiring
work