safety

switchbox

metal

case

electrical

glass

door

contemporary

electricity

distribution

substation

super

close

view

gear

cabinet

switchboard

screen

circuit

breaker

powerful

motion

kazan

tatarstan

zelenodolsk

generator

dangerous

equipment

station

danger

transformer

industry

industrial

voltage

insulation

technology

engineering

electric

efficiency

energy

power

current

construction

switchgear

supply