Male engineer closing his jacket with zipper and wears hard hat safety helmet at the electric substation handheld dynamic

male engineer closing jacket wear hard hat safety helmet electric substation handheld reflective vest standing eyewear technician electrician electrical person worker sunglass employee career safety gear zipper morning afternoon hazardous area substation electrician man cold weather maintenance tower guy industry work industrial electric power plant professional high voltage grid distribution electricity equipment service technology engineering construction energy repairman job