cable
check
connection
construction
crane
current
danger
dangerous
electric
electrical
electrician
electricity
emergency
energy
engineer
engineering
equipment
hat
helmet
high
industry
install
insulator
job
labor
line
lineman
maintenance
manual
metal
occupation
outdoors
people
pole
power
power line
professional
protection
repair
risk
safety
safety first
service
system
technical
technician
technology
voltage
wire
work