Heat dissipation, flame-retardant and anti-breaking type power cable

Abstract

The invention discloses a heat dissipation, flame-retardant and anti-breaking power cable, comprising a core wire and a protective layer, the inner ring of the protective layer is successively provided with an outer steel tape armor layer and an outer shielding layer inwards; the cavity formed between the outer shielding layer and the outer ring of the core wire is filled with a wire core fillingstrip, and a heat dissipation hole of the filling strip is arranged in the wire core filling strip made of thermal conductive silicone; the core wire comprises a conductor bundle, an insulating layer,an inner shielding layer, an inner steel tape armor layer and a flame-retardant layer, the heat dissipation and cooling effect of the invention is good, the temperature rise of the cable can be effectively controlled, the cable can be effectively operated for a long time, and the insulating layer is effectively prevented from bursting into flames by setting the fire retardant layer to ensure thepersonal safety; the steel tape armor layer is respectively arranged on the outside of the protective layer and the core wire, which greatly enhances the strength of the cable itself, thereby ensuringnormal power supply.

Description

technical field [0001] The invention relates to a cable, in particular to a heat-dissipating, flame-retardant and breakage-proof power cable. Background technique [0002] When the power cable is transmitting power, the core conductor of the cable will heat up under the action of its own resistance due to the large current passing through it. The longer the time, the higher the temperature, the greater the resistance, the easier it is to heat up, causing power transmission loss; if the conductor The temperature cannot be controlled within a limited temperature range, and the heat generated by the conductor may cause the insulation material to degrade, resulting in safety accidents such as cable damage and fire. At present, the main way to control the temperature of the conductor is to increase the area of ​​the conductor to reduce the transmission resistance of the cable. However, it will inevitably lead to an increase in the weight of the conductor material, insulating mate...

AI Technical Summary

Problems solved by technology

[0002] When the power cable is transmitting power, the core conductor of the cable will heat up under the action of its own resistance due to the large current passing through it. The longer the time, the higher the temperature, the greater the resistance, the easier it is to heat up, causing power transmission loss; if the conductor The temperature cannot be controlled within a limited temperature range, and the heat generated by the conductor may cause the degradation of the insulating material, resulting in safety accidents such as cable damage and fire

At present, the main way to control the temperature of the conductor is to increase the area of ​​the conductor to reduce the transmission resistance of the cable. However, it will inevitably lead to an increase in the weight of the conductor material, insulating material and cable, which is undesirable, and in order to increase the strength of the cable, usually A steel tape armor layer is added outside the cable core, but a single layer of steel tape armor layer is limited to increase the strength of the cable; power cables in cities often need to be buried underground, and there is a lack of attention during urban construction If the cable is damaged

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