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High voltage electric pole power line electric transmission tower background, technology energy clean ecosystem change green environment, substation construction pylon generator grid electricity.
Electric pole with a transformer and wires. USA.
Electrician checking the electrical system, with an electric meter for the safety of the system
Power station and Electricity towers, South Africa
Electric wires are burning on a dark background. A short circuit in the wires., the cause of the fire.Flames, sparks and smoke.

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