CN202887790U

CN202887790U - Tensile low smoke zero halogen fireproof inflaming retarding cable

Info

Publication number: CN202887790U
Application number: CN 201220479777
Authority: CN
Inventors: 赵家玉
Original assignee: TONGLING CITY TONGDU SPECIAL CABLE CO Ltd
Current assignee: TONGLING CITY TONGDU SPECIAL CABLE CO Ltd
Priority date: 2012-09-20
Filing date: 2012-09-20
Publication date: 2013-04-17
Anticipated expiration: 2022-09-20

Abstract

The utility model discloses a tensile low smoke zero halogen fireproof inflaming retarding cable comprising a plurality of conductors. Each of the conductors is sequentially wrapped by a composite fireproof layer and a cross-linked polyethylene insulation layer to form an insulation wire core. The composite fireproof layer is, from inside to outside, a mica tape, fireproof inorganic short fiber adhesive layer, and a cladding. The plurality of insulation wire cores and reinforced steel cores can be intertwisted together to form a cable core, which is wrapped by a glass fiber tape. The glass fiber tape is sequentially wrapped by a halogen free wrapping tape and a low smoke zero halogen polyolefin 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 fireproof performance and the tensile ability are excellent, the use safety of the cable can be guaranteed, when the cable is burned at the high temperature; when the cable is combusted, no poisonous and harmful gases can be exhausted; the environmental pollution is small, and the rescue work can be facilitated.

Description

A kind of tensile type low-smoke zero-halogen fire-resistant flame retardant cable

Technical field

The utility model relates to the electric wire field, is specially a kind of tensile type low-smoke zero-halogen fire-resistant flame retardant 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, not flame resistant calcination.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 common cable resistance to tension is not good, useful life is shorter; a large amount of dense smokes and toxic and harmful be can discharge during burning, rescue work and atmospheric environment affected.

The utility model content

The purpose of this utility model provides a kind of tensile type low-smoke zero-halogen fire-resistant flame retardant cable, not good to solve cable fire performance and resistance to tension traditional in the prior art, useful life is shorter, easy short circuit when breaking out of fire is subjected to the flame calcination, and can discharge a large amount of dense smokes and toxic and harmful, affect the problem of rescue work and atmospheric environment.

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

A kind of tensile type low-smoke zero-halogen fire-resistant flame retardant cable, include the array conductor, it is characterized in that: every group of conductor all is coated with composite fire layer and crosslinked polyetylene insulated layer outward successively, and formation insulated wire cores, described composite fire layer is followed successively by mica tape from inside to outside, fire-resistant inorganic short fiber adhesive-layer and lapping layer, several insulated wire cores and the stranded rear formation cable core of reinforcement steel core, described cable core is coated with glass fiber tape, described glass fiber tape is coated with Halogen twining package tape and low-smoke halogen-free polyolefin restrictive coating outward successively, is provided with packed layer between described cable core and the glass fiber tape.

Described a kind of tensile type low-smoke zero-halogen fire-resistant flame retardant cable is characterized in that: described conductor is zinc-plated soft copper conductor.

Described a kind of tensile type low-smoke zero-halogen fire-resistant flame retardant cable is characterized in that: described fire-resistant inorganic short fiber adhesive-layer adopts polycrystal alumina or polycrystalline mullite short fiber to make.

The beneficial effects of the utility model are:

The utility model is simple in structure, adopts the design of composite fire layer and glass fiber tape, for cable provides double-deck refractory protection, has effectively promoted the fire resistance of cable, has guaranteed the use safety of cable when being subjected to high temperature sintering; Adopt the design stranded with strengthening steel core of several insulated wire cores, effectively promoted the resistance to tension of cable, prolonged useful life; Adopt the design of Halogen twining package tape and low-smoke halogen-free polyolefin restrictive coating, so that cable can not discharge a large amount of dense smokes and toxic and harmful when burning occurs, environmental pollution is less, has made things convenient for the carrying out of rescue work.

Description of drawings

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

Embodiment

As shown in Figure 1, a kind of tensile type low-smoke zero-halogen fire-resistant flame retardant cable, include array conductor 1, every group of conductor 1 outer composite fire layer and crosslinked polyetylene insulated layer 5 of all being coated with successively, and formation insulated wire cores, the composite fire layer is followed successively by mica tape 2 from inside to outside, fire-resistant inorganic short fiber adhesive-layer 3 and lapping layer 4, several insulated wire cores and reinforcement steel core 6 stranded rear formation cable cores, cable core is coated with glass fiber tape 7, be coated with successively Halogen twining package tape 8 and low-smoke halogen-free polyolefin restrictive coating 9 outside the glass fiber tape 7, be provided with packed layer 10 between cable core and the glass fiber tape 7.

Conductor 1 is zinc-plated soft copper conductor, and fire-resistant inorganic short fiber adhesive-layer 3 adopts polycrystal alumina or polycrystalline mullite short fiber to make.

Claims

1. tensile type low-smoke zero-halogen fire-resistant flame retardant cable, include the array conductor, it is characterized in that: every group of conductor all is coated with composite fire layer and crosslinked polyetylene insulated layer outward successively, and formation insulated wire cores, described composite fire layer is followed successively by mica tape from inside to outside, fire-resistant inorganic short fiber adhesive-layer and lapping layer, several insulated wire cores and the stranded rear formation cable core of reinforcement steel core, described cable core is coated with glass fiber tape, described glass fiber tape is coated with Halogen twining package tape and low-smoke halogen-free polyolefin restrictive coating outward successively, is provided with packed layer between described cable core and the glass fiber tape.

2. a kind of tensile type low-smoke zero-halogen fire-resistant flame retardant cable according to claim 1, it is characterized in that: described conductor is zinc-plated soft copper conductor.

3. a kind of tensile type low-smoke zero-halogen fire-resistant flame retardant cable according to claim 1 is characterized in that: described fire-resistant inorganic short fiber adhesive-layer adopts polycrystal alumina or polycrystalline mullite short fiber to make.