Add:Chengnan Industrial Zone.Meicheng Town.Jiande City.Zhejiang Province
Contact person: Yonghong Jiang
1. When the cables cross each other, the high voltage cable should be under the low voltage cable. The minimum allowable distance is 0.25 m if one of the cables is protected by a pipe or separated by a partition within 1 m of the cross point.
2. When the cable is close to or crossed with the heat pipe, the minimum distance between parallel and crossed shall be 0.5m and 0.25m respectively.
3. Cables and railways or roads crossing the pipe should be protected, the protective tube should be out of the track or road 2m away.
4. The distance between the cable and the foundation of the building should be such that the cable is buried outside the building. The cable should be protected by piping when it is introduced into the building, and the protection pipe should be outside the building.
5. Directly buried in the ground between the cable and the general grounding device should be between 0.25 ~ 0.5m; buried directly in the underground cable depth, generally not less than 0.7m, and should be buried in permafrost.
With the rapid development of the laying of power cables laid the project, the cable protection of the higher requirements, the use of polyethylene pipe PE pipe and high-quality steel shot blasting through the pre-treatment, Jin Su or painting, heating curing Process produced. It is the most common type of electrically insulated tube for protecting wires and cables. Because of good insulation properties, chemical stability, no rust, no aging, can adapt to harsh environments and is widely used.
The use of cable protection sleeve protection cable can achieve the following advantages:
1, good corrosion resistance, long life, can be used in the wet alkaline areas.
2, flame retardant, heat resistance, and can be used in 130 degrees under high temperature without deformation, in case of fire does not burn.
3, high strength, high rigidity. Used in the carriageway without buried under the concrete layer of protection, to roll the progress of cable construction projects. 4, cable protection tube Whether it is pipe or pipe fittings have a certain flexibility, can withstand the external pressure and foundation settlement caused by damage.
5, has a good anti-external signal interference performance.
6, the wall is smooth, do not scratch the cable. The design uses socket-type connection, easy installation and connection. Joint plus rubber seal ring to adapt to thermal expansion and contraction, and prevent the sand into.