CN202887796U - Fireproof tensile flexible cable - Google Patents

Abstract

The utility model discloses a fireproof tensile flexible cable comprising a plurality of conductors, each of which is sequentially wrapped by a mica tape, a taped covering, and an insulation layer and to form an insulation wire core. Each of the insulation wire cores is wrapped by a slipping layer. The plurality of insulation wire cores and reinforced steel cores are intertwisted together to form a cable core, which is wrapped by a glass fiber tape. The glass fiber tape is wrapped by a sheath layer, and a filling layer is disposed between the cable core and the glass fiber tape. The utility model is advantageous in that the structure is simple, the tensile performance and the fireproof performance are good, the slipping performance among various insulation wire cores is good, the bending can be facilitated, and the deformation is not easy to occur, the service lifetime of the cable can be prolonged, and the use safety of the cable can be guaranteed.

Description

A kind of fire-resistant tension flexible cable

Technical field

The utility model relates to the electric wire field, is specially a kind of fire-resistant tension flexible cable.

Background technology

Along with the fast development of power industry, urban construction, all trades and professions are more and more higher to the requirement of cable.The employing that traditional cable is more the poor structure of thermal insulation flame resistant not.Therefore; when breaking out of fire; the not flame resistant baking of this class cable is difficult to isolated flame, so flame these protective layers that are easy to ablate; make cable directly be subject to the calcination of flame; cause cable can not work because of short circuit, and the resistance to tension of common cable is not enough, is difficult for bending; be subjected to distortion, bending to affect easily and deform, cause shorten the useful life of cable.

The utility model content

The purpose of this utility model provides a kind of fire-resistant tension flexible cable, not enough to solve cable resistance to tension traditional in the prior art, be difficult for bending, fire resistance is not good, is bent easily the problem that causes cable shortening in useful life and be short-circuited with the flame calcination that affects during use.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of fire-resistant tension flexible 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, every eradication edge core is coated with glide lamella, several insulated wire cores and the stranded rear formation cable core of reinforcement steel core, and described cable core is coated with glass fiber tape, described glass fiber tape is coated with restrictive coating, is provided with packed layer between described cable core and the glass fiber tape.

Described a kind of fire-resistant tension flexible cable is characterized in that: described glide lamella is the macromolecule material film layer of low-friction coefficient.

Described a kind of fire-resistant tension flexible cable is characterized in that: described restrictive coating adopts acrylonitrile-butadiene rubber to make.

The beneficial effects of the utility model are:

The utility model is simple in structure, adopts the design that mica tape is set outside conductor, has effectively promoted the fire-resistance property of cable; Adopt the design stranded with strengthening steel core of several insulated wire cores, effectively promoted the resistance to tension of cable; Employing, conveniently bends so that have good slipping property between each insulated wire cores in the design of insulated wire cores outer cladding glide lamella, and not yielding, has prolonged the useful life of cable, has ensured the use safety of cable.

Description of drawings

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

Embodiment

As shown in Figure 1, a kind of fire-resistant tension flexible cable, include array conductor 1, every group of conductor 1 outer mica tape 2, lapping layer 3 and insulating barrier 4 of all being coated with successively, and consist of insulated wire cores, every eradication edge core is coated with glide lamella 5, several insulated wire cores and reinforcement steel core 6 stranded rear formation cable cores, cable core is coated with glass fiber tape 7, and glass fiber tape 7 is coated with restrictive coating 8, is provided with packed layer 9 between cable core and the glass fiber tape 7.

Glide lamella 5 is the macromolecule material film layer of low-friction coefficient, and restrictive coating 8 adopts acrylonitrile-butadiene rubber to make.

Claims (3)

1. fire-resistant tension flexible 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, every eradication edge core is coated with glide lamella, several insulated wire cores and the stranded rear formation cable core of reinforcement steel core, and described cable core is coated with glass fiber tape, described glass fiber tape is coated with restrictive coating, is provided with packed layer between described cable core and the glass fiber tape.

2. a kind of fire-resistant tension flexible cable according to claim 1, it is characterized in that: described glide lamella is the macromolecule material film layer of low-friction coefficient.

3. a kind of fire-resistant tension flexible cable according to claim 1 is characterized in that: described restrictive coating adopts acrylonitrile-butadiene rubber to make.

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