circuit

breaker

cabinet

yellow

information

sign

electricity

production

oil

substation

blue

sky

close

view

insulator

glass

ceramic

switchyard

power

equipment

kazan

tatarstan

zelenodol

generate

efficiency

supply

voltage

electric

industry

generation

energy

transmission

industrial

danger

structure

conversion

transformer

system

infrastructure

network

line

plant

insulation

switch

gear