Male engineer listening over the walkie talkie while nodding his head at the electric substation, handheld closeup

male engineer listening walkie talkie nodding head electric substation handheld closeup fence mesh wire handheld transceiver on duty wearing safety reflective vest sunglass technician talking over the radio electrician electrical person worker power line employee career hard hat safety gear hazardous area talking substation electrician man maintenance tower guy grid power plant communication work job industrial electric professional electricity equipment service construction energy helmet repairman