| 摘要 |
A device for cutting off an underground line connector is provided to prevent spread of fire though underground pipes and instantly informing a manager of the occurrence of the fire. A device for cutting off an underground line connector includes a distributing case(10), a distributing board(20), an underground pipe(30), a power supply line(40), an external power supply wire(50), a connector(60), a blocking device(70), a fire sensor(80), a control unit(90), an alarm device(100), and a fire extinguisher(110). The distributing case is installed under the ground. The distributing board is installed in the distributing case. The underground pipe is connected with the distributing case. The power supply line is connected to an internal element of the distributing board. The external power supply wire includes a live wire and a neutral wire. The connector has a cut groove formed in the center. The blocking device includes a case, a piston, a strike part, a spring, and a solenoid. The control unit is connected to the fire sensor. |
