| 摘要 |
PURPOSE: An installation method of a street light foundation to enable multi-functional consecutive grounding using a projected fixed grounding copperplate is provided to prevent the performance reduction of earth buried in a concrete block. CONSTITUTION: An installation method of a street light foundation to enable multi-functional consecutive grounding comprises conduit tubes(20,20') through which an electric wire for supply(60), a conductor for supply(10), an electric wire for discharge(60'), and a conductor for discharge(10') pass together, a fixed grounding tube(22) through which a fixed grounding wire(12) passes, a projected fixed grounding copperplate(70) which is connected to the lower part of the fixed grounding wire and projected from the bottom of a concrete block(40), and a ground connection tube(30) projected from the top of the concrete block and connected to the conductors and the fixed grounding wire. |
