Flame-retardant cable

Abstract

The invention discloses a flame-retardant cable which comprises a conductor, an insulating layer, a flame-retardant layer and an outer sheath. The outer sheath wraps the outer side of the conductor, the insulating layer and the flame-retardant layer are arranged between the conductor and the outer sheath, a filling layer is arranged between the insulating layer and the flame-retardant layer, the conductor is composed of four aluminum cores, and cross sections of the aluminum cores are fan-shaped and are combined to form the complete round conductor. The flame-retardant cable has the advantagesthat the conductor is composed of the four aluminum cores, so that roundness of the conductor is realized; the filling layer and the flame-retardant layer are added, so that flame-retardant effect ofthe cable can be improved; by arranging a temperature sensor, outside temperature can be sensed, so that safety and stability of the cable are improved.

Description

technical field [0001] The invention relates to a cable, in particular to a flame-retardant cable. Background technique [0002] As the signal connecting line between various electrical appliances, instruments and automatic devices, the cable is mainly used for various functions such as signal transmission and transmission of control signals in the occasions of control, monitoring chain loops and protection lines, etc., and is widely used in various industrial and mining industries. Important economic fields such as enterprises and transportation. Heat-resistant cables can be used in many occasions. The existing known heat-resistant cables generally include a conductor, an inner sheath layer, and an outer sheath layer. Since the inner sheath layer and the outer sheath layer are made of cable materials with strong heat-resistant properties, they are used in heat resistance and preventing Plays a significant role in the spread of fire. However, during the use of existing he...

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Problems solved by technology

However, during the use of existing heat-resistant cables, due to the lack of an independent aluminum extruded middle sheath layer, the conductor and inner sheath layer are severely damaged due to factors such as moisture, water, and chemical corrosion. It can't be applied to transportation and other related fields, because if it is twisted in this way, there will obviously be some spaces inside the conductor that are not filled, so that the conductor can show a full roundness and achieve the resistance people are looking for. The best effect of the thermal cable, otherwise the heat-resistant cable is not conducive to the performance of the heat-resistant effect, and it is also not conducive to the continuous progress of the cable transportation, but additional filling of heat-resistant materials to achieve this effect will cost money and consume manpower and material resources

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