CN203102935U - A twist-resistant fire-resistant rodent-proof tensile cable - Google Patents

Abstract

The utility model discloses a warp-resistant, fireproof, mouse-prevention and tensile cable. The cable comprises a plurality of conductors, and a mica tape, a taped layer and an insulating layer are successively wrapped outside each conductor, so that insulating cores are formed. The insulating cores and reinforced steel cores are intertwisted to form a cable core. A glass fiber tape is wrapped outside the cable core, an inner sheath formed by intersected braiding is wrapped outside the glass fiber tape, and a nylon protective layer and an outer sheath are successively wrapped outside the inner sheath. A filling layer is disposed between the cable core and the glass fiber tape. The cable of the utility model has a simple structure, exhibits excellent warp-resistant and tensile properties, is effectively prevented from being bitten by mice and is prolonged in terms of the service life. Through a design of the mica tape outside each conductor, the cable is effectively promoted in terms of fireproof performance and is guaranteed to be safe to use.

Description

A twist-resistant fire-resistant rodent-proof tensile cable

technical field

The utility model relates to the field of wires and cables, in particular to a twist-resistant, fire-resistant, rat-proof and tensile cable.

Background technique

With the rapid development of power industry and urban construction, all walks of life have higher and higher requirements for cables. Most of the traditional cables use structures with poor heat insulation and are not resistant to flames. Therefore, in the event of a fire, this type of cable is not resistant to flame baking, and it is difficult to isolate the flame, so the flame can easily ablate these protective layers, so that the cable is directly burned by the flame, causing the cable to fail to work due to a short circuit. It is easy to be bitten by mice, and the anti-twisting and tensile capabilities are insufficient. Long-term twisting and stretching will also shorten the service life of the cable.

Utility model content

The purpose of this utility model is to provide a twist-resistant, fire-resistant, rat-proof and tensile cable to solve the problem that the traditional cables in the prior art are easy to be bitten by mice, have insufficient twist resistance and tensile strength, poor fire resistance, and long-term use. Afterwards, it is susceptible to twisting, stretching, and flame burning, resulting in shortened cable life and short-circuit problems.

In order to achieve the above object, the technical solution adopted by the utility model is:

A twist-resistant, fire-resistant, rodent-proof and tensile cable, including a group of conductors, is characterized in that: each group of conductors is covered with mica tape, wrapping layer and insulating layer in turn, and constitutes an insulated wire core, and several insulated wire cores Twisted with a reinforced steel core to form a cable core, the cable core is covered with a glass fiber tape, and the glass fiber tape is covered with an inner sheath composed of cross braiding, and the inner sheath is covered with A nylon protective layer and an outer sheath, and a filling layer is provided between the cable core and the glass fiber tape.

The twist-resistant, fire-resistant, rodent-proof tensile cable is characterized in that the conductor is a tinned annealed copper conductor.

The twist-resistant, fire-resistant, rodent-proof tensile cable is characterized in that: the outer sheath is made of silicon rubber.

The beneficial effects of the utility model are:

The utility model has a simple structure, the inner sheath adopts the design of cross braiding, and the cross braiding structure has a large stretching space, which effectively improves the anti-torsion ability of the cable; it adopts the design of twisting several insulated wire cores and reinforced steel cores, Effectively improves the tensile capacity of the cable and prolongs the service life of the cable; the design of the nylon protective layer with good hardness and surface smoothness effectively prevents the cable from being bitten by mice; the mica tape is arranged outside the conductor The unique design effectively improves the fire resistance of the cable, and can withstand the flame temperature of nearly 800°C for a long time, ensuring the safety of the cable.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

As shown in Figure 1, a twist-resistant, fire-resistant, rodent-proof and tensile cable includes a set of conductors 1, and each set of conductors 1 is covered with a mica tape 2, a wrapping layer 3 and an insulating layer 4 in sequence, and constitutes an insulated wire Core, several insulated wire cores and reinforced steel core 5 are twisted to form a cable core, the cable core is covered with a glass fiber tape 6, and the glass fiber tape 6 is covered with an inner sheath 7 composed of cross braiding, and the inner sheath 7 is coated with a nylon protective layer 8 and an outer sheath 9 in sequence, and a filling layer 10 is provided between the cable core and the glass fiber tape 6 .

The conductor 1 is a tinned annealed copper conductor, and the outer sheath 9 is made of silicon rubber.

Claims (3)

1. the fire-resistant protection against rodents tension of warp resistance cable, include the array conductor, it is characterized in that: every group of conductor all is coated with mica tape, lapping layer and insulating barrier outward successively, and formation insulated wire cores, several insulated wire cores constitute cable core with the stranded back of reinforcement steel core, described cable core is coated with glass fiber tape, described glass fiber tape is coated with the inner sheath that interlacing constitutes, described inner sheath is coated with nylon overcoat and oversheath outward successively, is provided with packed layer between described cable core and the glass fiber tape.

2. the fire-resistant protection against rodents tension of a kind of warp resistance according to claim 1 cable is characterized in that: described conductor is zinc-plated soft copper conductor.

3. the fire-resistant protection against rodents tension of a kind of warp resistance according to claim 1 cable is characterized in that: described oversheath adopts silicon rubber to make.