High-toughness flexible power cable for communication base station

Abstract

The invention discloses a high-toughness flexible power cable for a communication base station. The high-toughness flexible power cable comprises a circular aramid fiber core and an inner conductive layer; a plurality of trapezoidal conductors are stranded on the outer surface of the inner conductive layer; a fireproof flame-retardant layer wraps the outer surface of the polyethylene insulating belt, comprising mica paper, a first glass fabric and a second glass fabric; the mica paper is adhered to the first glass fabric and the second glass fabric through adhesive layers; a glass tape wraps the outer surface of the fireproof flame-retardant layer; a protecting sleeve layer comprises an inner polyvinyl chloride protecting layer at the inner side and an outer protecting layer at the outside; the outer protecting layer is prepared from a thermoplastic polyurethane phenol elastomer, low-density polyethylene, ethylene acrylic ester, an ethylene-butylene copolymer, silica, a nitrile compound, chlorinated polyethylene and zinc stannate. The cable is non-combustible, high in heat resistance, tight and difficultly to breath; in addition, the layering phenomenon due to relatively large material difference can be avoided; the contact surface compatibility and adhering firmness can be improved, and the product performances are increased.

Description

technical field [0001] The invention relates to a communication power cable, in particular to a high-flexibility power supply flexible cable for a communication base station. Background technique [0002] With the rapid advancement of 4G applications, flexible cables for communication power supplies used in base station construction have been widely promoted and applied, mainly for power connections in switch cabinets. Flexible cables for communication power supply not only require good flexibility to facilitate laying in narrow spaces or similar situations, but also require ideal flame retardancy to meet the requirements for use in occasions with strict fire ratings. [0003] Although not limited to the flexible cables for communication power sources listed above, although each has corresponding technical effects, there are the following common shortcomings: First, since they are all made of twisted fine copper wires as conductors, and this conductor is known as Five types...

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Problems solved by technology

[0003] Although not limited to the flexible cables for communication power sources listed above, although each has corresponding technical effects, there are the following common shortcomings: First, since they are all made of twisted fine copper wires as conductors, and this conductor is known as Class 5 copper conductors, so the softness does not meet the expected requirements

And due to the poor softness, the bending radius is limited, so when laying in a narrow space, obstructed by immovable objects or even corners, it is easy to affect the construction speed; As the conductor of flexible cables, copper not only has blindness in the rational use of raw materials, but also leads to high manufacturing costs for flexible cables; The labor intensity of medium construction personnel is high, and the labor cost is high

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