機器
appliance
automatic
automation
background
box
cabinet
cable
checking
circuit
component
connect
connection
contact
contactor
control
controller
distribution
electric
electrical
electricity
electro
electronic
energy
engine powering
engineering
equipment
fuse
industrial
industry
magnetic
network
no people
panel
power
protection
protector
relay
safety
starter
station
substation
switch
switchboard
system
technology
terminal
voltage
wire
wiring