Do we need the ground wire and rod inside the light pole?

I saw there were ground wires and a rod at the base of the parking lot light pole. But if there are ground wires in the parking lot circuits, do we still need the grounding in the base?

Yes, the ground wires and rod ensure electrical safety and avoid electrical overloads, short circuits, lightning, etc. If the street lamp does not have a grounding electrode, when the street lamp equipment fails, the current will not find a flow path. They may flow through the human body, which will lead to accidental electric shocks. With the grounding electrode, the current flows from the power supply through the light pole and back to the ground to form a closed loop. The current can flow back to the earth through the ground electrode, thereby ensuring electrical safety.

More reading: 7 Most Common Myths about LED Street Lighting

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