Environment-friendly cable with high compressive strength

Abstract

The invention discloses an environment-friendly cable with high compressive strength. The cable comprises an inner reinforcement core, power cables, a filling layer, a wrapping tape layer, an oxygen insulation layer, a steel tape layer, an inner jacket layer, a steel wire armor layer, a water-resistant factice layer, an outer jacket layer, a braided layer and a graphite coating, where the center of the filling layer is filled with the inner reinforcement core, the four power cables are circumferentially distributed on the outer circle of the inner reinforcement core, and the wrapping tape layer, the oxygen insulation layer, the steel tape layer, the inner jacket layer, the steel wire armor layer, the water-resistant factice layer, the outer jacket layer, the braided layer and the graphite coating are sequentially arranged outside the filling layer from inside to outside. The flame-retardant grade of the cable is increased due to the oxygen insulation layer, the steel tape layer and the wrapping tape layer, the cable can be prevented from being damaged by induced electromotive force during running and well protected due to the graphite coating, and the cable has the characteristics of good water resistance and fire resistance, high strength, deformation prevention, long service life and high-temperature resistance and is environment-friendly when being recycled.

Description

Technical field [0001] The invention relates to the technical field of cable design, in particular to an environmentally friendly cable with high compressive strength. Background technique [0002] With the rapid development of my country's economy, my country's high-rise buildings, subways, nuclear power plants, shipbuilding, optoelectronic communications, etc. have developed at an unprecedented speed, and the amount of wires and cables has also increased rapidly. Power cable is a kind of cable used to transmit and distribute electrical energy, and it has a wide range of applications in various industries such as communications and civil use. [0003] Generally, the power cable insulation materials sold in the market are made of ordinary PVC, which has poor external strength performance. When working with high current and high voltage, the external insulation layer is prone to deformation, even breakdown, and the insulation performance is affected. Affect the effect of power tran...

AI Technical Summary

Problems solved by technology

[0003] Generally, the insulation material of power cables sold on the market is made of ordinary PVC, which has poor external strength performance. When working with high current and high voltage, the external insulation layer is prone to deformation, even breakdown, and the insulation performance is affected. Affect the effect of power transmission, and even cause safety accidents. The existing cables cannot achieve high bending durability and high flexibility at the same time, and there are disadvantages such as not being environmentally friendly, so how to design a high-strength, environmentally friendly cable is a need The problem to be solved, such as the Chinese patent application number CN201110376167.4, proposes a cable, including a conductor formed by twisting multiple tinned copper wires, the conductor is wrapped with an insulating layer to form a wire, and the wire is twisted with a polypropylene filling layer to form a power cable The cable core is coated with heat insulation layer, inner sheath, copper wire braided shielding layer and outer sheath from inside to outside in sequence. The invention is simple, low in production cost, long in service life, good in physical properties and flame retardant. Good, but because this kind of cable is made of polypropylene material, when the polypropylene is burned, the light transmittance is below 15%, and at the same time, a lot of toxic gas is released when it is burned, which is not conducive to environmental protection, and the cable is generally Buried in the soil, it is very easy to be damaged by mechanical external forces such as excavators during road repairs or re-construction. The cables used in such cases are not only required to have high bending durability, but also to be easily wired. From the point of view, high flexibility is also required. This kind of cable cannot achieve high bending durability and high flexibility at the same time, thus reducing the environmental adaptability of the cable.

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