| 摘要 |
The present invention relates to a cable protection tube for an underground transmission line. A conductor of both side underground transmission cables are electrically connected to each other through a conductive connection pipe and a vibration reduction spring when the both side underground transmission cables are connected. The both side underground transmission cables are doubly and safely protected by a vibration reduction insulating pipe, an insulation flange pipe, and external insulating protective pipe. The vibration reduction insulating pipe and the insulation flange pipe is coupled as a one-touch type by an elastic hook and hook-coupling hole so that the work is done quickly and simply. A connection area of the both side underground transmission cables is connected by the vibration reduction insulating pipe, a vibration reduction insulating tube, a vibration reduction spring, and external insulating protective pipe so that vibration, which is applied to the underground transmission cable, is absorbed and reduced, thereby preventing separation or connection error, a short circuit, and leakage of the connection area of the underground transmission cable. |
