| 摘要 |
PURPOSE: A foundation structure with common ground for a streetlight supporter is provided to prevent a safety accident when an electric leakage by reducing earth resistance. CONSTITUTION: A foundation structure with common ground for a streetlight supporter comprises a concrete block(40), anchor bolts(50), conduit tubes(20,20'), an earth connection plate(30), a fixed earth wire(12), and an earth plate(70). The anchor bolts are installed in the concrete block, and fixes a streetlight supporter(100). The conduit tubes are installed inside the concrete block. The earth connection plate is formed in the top of the concrete block. The fixed earth wire is connected to the earth connection plate. The earth plate is installed in the bottom of the concrete block to be electrically connected to the fixed earth wire. |
