cable
component
construction
control
electrical
electrician
electricity
electronic
energy
engineer
engineering
equipment
examining
expertise
fuse
fusebox
hand
human
industrial
industry
instrument
line
maintenance
man
manual
measurement
measuring
multimeter
occupation
panel
person
plan
power
professional
protection
protective
repair
repairman
safety
service
supply
technician
technology
tool
voltmeter
wire
work
worker