closeup of plumber using screwdriver while fixing boiler or water heater, working on heating system in apartment - art installation imagens e fotografias de stock
electrical terminal in junction box and service by technician. electrical device install in control panel for support program and control function by plc. routine visit check equipment by technician. - art installation imagens e fotografias de stock
electrician engineer tests electrical installations and wires on relay protection system. adjustment of scheme of automation and control of electrical equipment. - art installation imagens e fotografias de stock
hand of electrical technician working with fuses at the circuit breaker control cabinet on the wall - art installation imagens e fotografias de stock
electrician engineer uses a multimeter to test the electrical installation and power line current in an electrical system control cabinet. - art installation imagens e fotografias de stock