What is the strength of power cable protection pipe produced by pultrusion winding process?
Release time:
2020-03-04
Power cable protection pipe includes steel pipe, cast iron pipe, rigid PVC pipe, clay pipe, concrete pipe, asbestos cement pipe, etc. Let's understand some performance characteristics of power cable p
The main function of the power cable protection pipe is to prevent the cable from being damaged. It is mainly installed in the section where the communication cable crosses the power line to prevent the power line from breaking and causing the short circuit accident.
Power cable protection pipe includes steel pipe, cast iron pipe, rigid PVC pipe, clay pipe, concrete pipe, asbestos cement pipe, etc. Let's understand some performance characteristics of power cable protection pipe produced by pultrusion winding process with glass fiber and resin as main raw materials from four aspects of inner wall, tensile strength, temperature resistance and installation:
1. Smooth inner wall and convenient cable threading: the inner wall of fiber braided pultrusion cable protection sleeve is smooth and convenient for cable threading. Rubber sealing rings are installed at the head and tail of the joint to adapt to thermal expansion and cold contraction and effectively prevent sediment intrusion.
2. High strength: the braiding angle of the fiber braided pultrusion cable protective sleeve pipe is 120 ° and the inner and outer three-layer braiding process is adopted. The tensile strength is high and the flexibility is greatly improved compared with the traditional pipe.
3. Light transportation and convenient installation of pipes: the pipes are connected directly, and the weight is lighter under the same wall thickness, so the transportation pressure is reduced, the installation is convenient, and the construction period is greatly shortened. Meanwhile, the road excavation exposure time is long, which affects the urban traffic order
4. Good high and low temperature resistance: the pultruded cable protection pipe has the performance of anti freezing and high temperature resistance, which can adapt to harsh environment. The pipe will not be damaged and deformed under the extreme temperature of - 50 ℃ ~ 200 ℃, and still has good toughness and high strength.
The scope of application of power cable protection pipe is divided into class A, class B and class C. class A is applicable to urban and rural power cable construction, traffic road and bridge, underground cable protection of Industrial Park Cable Engineering, class B is applicable to direct buried laying of non motor vehicle lanes such as sidewalk and green belt, and it is also applicable to concrete encasement laying of motor vehicle lanes passing heavy vehicles, class C is applicable to expressway, class I and class II highways and heavy vehicles Directly buried laying of the road section where vehicles pass.
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