arrow
art
attention
background
banner
beware
cables
caution
clip
current
danger
dangerous
elector
electric
electrical
electricity
energy
forbidden
hazard
high
icon
illustration
industrial
information
isolated
label
lighting
lightning
notice
old
panel
pictogram
power
protect
risk
safety
security
shock
sign
signal
sticker
strike
supply
symbol
te
triangle
voltage
warning
yellow