aerial
background
blue
building
cable
caucasian
communication
construction
electric
electrical
electrician
electricity
energy
engineer
equipment
hand
hardhat
hat
helmet
high
home
industry
isolated
job
line
maintenance
male
manual
men
occupation
orange
people
person
phone
pole
power
professional
safety
service
silhouette
single
sky
technology
telephone
tool
tower
transformer
white
work
worker