1results about How to "Good outdoor durability" patented technology

The application belongs to the technical field of cable fire prevention, and relates to a fireproof cable groove and a preparation method thereof. The fireproof cable groove is installed at a joint of a railway viaduct or a tunnel cable trench, is made of a full inorganic material, and has a simple and easy-to-operate preparation method. The fireproof cable groove comprises a cable groove body and connecting pieces installed at two ends of the cable groove body. The cable groove body is sequentially nested from outside to inside with an outer fireproof structure shell, an intermediate thermal insulation layer and an inner fireproof inner container. The inner side of the slot of the outer fireproof structure shell is provided with an inwardly extending inward flange along the length direction, and the outer side of the slot of the inner fireproof inner container is provided with an outwardly extending outward flange along the length direction. The inward flange and the outward flange are arranged in a top-and-bottom corresponding mode, and are mechanically connected through the connecting pieces at the two ends. The cable groove has a unique nested structure, can realize efficient heat insulation under high-temperature long-time fire burning of 800 DEG C or above, has excellent outdoor weather resistance, corrosion resistance and convenient installation and maintenance, and can control the cost within an acceptable range of engineering.