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The signal cables passed through the culverts and could not be dug and buried as deep as usual. Therefore, the cables were exposed and the protection was laborious, but no good results were obtained. The cable channel and cover plate are used to protect the over-culvert signal cable. However, the cover plate of the cable channel is thin and easy to fold. The new cover plate just changed can be easily lost or broken into several sections. The signal cable will be exposed and exposed. . If the use of steel pipe protection, stone burial method, there will be cable turn is difficult to set the problem of steel pipe.
If over-culverted signal cables are used for steel pipe protection, the cable trough is also snapped on the steel pipe, cement mortar is used to apply the joints and joints of the cable troughs, and finally buried with stone sap, the effect is very good.
By snapping the cable trough on the steel pipe, the weight and strength of the cable cover are increased without increasing the maintenance materials and costs, and the joints and seams of the cable trough are applied with cement, and the individual is cut off. The cable tray also becomes a whole. Now as long as once buried in place, quality clearance, signal cable can basically get a long time protection. Usually only need the operator to carry on some necessary inspections, it can completely protect the effect of culvert cables.
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