arc
background
black
burned
caution
copy space
damage
danger
death
death risk
do not enter
electric
electric shock
electrical
electricity
electrocuted
electrocution
elettroshock
energy
faulty
flash
guard
hazard
hazardous
heart failure
high
high voltage
indication
keep out
power
restricted
risk
safety
security
shock
sign
symbol
triangle
voltage
warning
wire
yellow