| 摘要 |
PURPOSE: A power line protecting box is provided to prevent corrosion of a connecting terminal of a power line by preventing a flow of moisture or foreign material between the power line and a cable grand. CONSTITUTION: A power line protecting box(1) includes a terminal part(2). A cable grand is integrated with the power line protecting box. The cable grand includes an inlet(10), an outlet(20), a male screw(30), a rubber packing(40), and a coupling nut(50). The inlet and the outlet are formed in both sides of the power line protecting box. The male screw is formed in a central part of the inlet and the outlet. A plurality of cut grooves is formed in a bottom end of the male screw. A protrusion is formed in a boundary part of the male screw and an elastic supporting part. The rubber packing is mounted in the protrusion. The coupling nut is coupled with the male screw. |
