An environmentally friendly cable with high compressive strength

Abstract

The invention discloses an environment-friendly cable with high compressive strength, which comprises a reinforced inner core, a power cable, a filling layer, a wrapping tape layer, an oxygen barrier layer, a steel belt layer, an inner sheath layer, a steel wire armor layer, a water-blocking Ointment layer, outer sheath layer, braiding layer, graphite coating, the center of the filling layer is filled with a strengthening inner core, and four power cables are distributed on the outer ring of the strengthening inner core, and the filling layer From the inside to the outside, there are wrapped tape layer, oxygen barrier layer, steel belt layer, inner sheath layer, steel wire armor layer, water-blocking grease layer, outer sheath layer, braided layer and graphite coating. The cable is equipped with an oxygen barrier layer, a steel tape layer and a wrapping tape layer to improve the flame retardant level of the cable. The setting of the graphite coating can prevent the cable from being damaged by the induced electromotive force during operation, and can protect the cable well. , the cable has the characteristics of good water resistance, fire resistance, high strength, deformation resistance, long service life and high temperature resistance, and when the cable is recycled, it is environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of cable design, in particular to an environment-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. are developing at an unprecedented speed, and the consumption of wires and cables has also increased rapidly. Power cable is a kind of cable used to transmit and distribute electric energy, and it is widely used in various industries such as communication and civil use. [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, a...

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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