ac
aged
alternative
box
cable
concept
construction
danger
dangerous
detail
device
dirty
electric
electricity
energy
equipment
house
infrastructure
metal
object
old
outlet
pair
plug
power
protection
receptacle
renewable
renewal
repair
restoration
risk
risky
rusty
safety
schuko
security
service
shock
socket
sun
supply
switch
technology
used
vintage
voltage
wall
waterproof
wire