| 摘要 |
A distributor of an underground distribution line for high power transmission is provided to prevent damage of a distribution unit by automatically interrupting connection between a connection terminal and a connector through a solenoid device in a fire inside a duct. A base(10) includes a lower base(11) and an upper base(12). The lower base includes a vertical through hole(11a) connected to a duct(1) and a rail(11b) on a top surface. The upper base includes a roller at a lower portion and a distribution unit(20) and a case(30) on a top surface. A bracket(40) is installed inside the duct. A connector(50) is mounted on the bracket to be lifted, connected to a underground distribution line(2) at a lower end, and pressed by a spring(51) downward. A connection terminal(60) includes a connection socket(61) which is connected to the connector at a lower end and detachably connected to the distribution unit at an upper end. A solenoid device(70) is provided on the upper base, is fixed not to release connection of the connection terminal and the connector by being coupled to the connector, and releases the connection of the connection terminal and the connector by being released from the connector. An upper base transfer device includes a screw axis, a driving motor, and a transfer block. A control unit is connected to the solenoid device and the driving motor of the upper base transfer device. A fire sensing sensor is provided inside the duct to sense a fire inside the duct. A voice output device is connected to the control unit and outputs a pre-recorded guide broadcast according to a control signal of the control unit. |
