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

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