CN203150251U

CN203150251U - Low-smoke, halogen free, high temperature resistant and warp resistant cable

Info

Publication number: CN203150251U
Application number: CN 201320087850
Authority: CN
Inventors: 谷道荣
Original assignee: ANHUI RONGJIU OPTICAL FIBER COMMUNICATION Co Ltd
Current assignee: ANHUI RONGJIU OPTICAL FIBER COMMUNICATION Co Ltd
Priority date: 2013-02-26
Filing date: 2013-02-26
Publication date: 2013-08-21
Anticipated expiration: 2023-02-26

Abstract

The utility model discloses a low-smoke, halogen free, high temperature resistant and warp resistant cable, comprising a plurality of groups of conductors. A composite fireproof layer and a crosslinking polyethylene insulating layer are wrapped outside each group of conductors in sequence to form an insulation core; a first mica tape, a fireproof inorganic short fiber bonding layer and a winding and cladding layer are wrapped outside the composite fireproof layer in sequence from interior to exterior; a plurality of insulation cores are intertwisted to form a cable core; a second mica tape, a halogen free winding and an inner sheath formed by intersection braiding are wrapped outside the cable core in sequence; a low-smoke and halogen free polyolefin outer sheath is wrapped outside the inner sheath; and a filling layer is arranged between the cable core and the second mica tape. According to the low-smoke, halogen free, high temperature resistant and warp resistant cable, good fireproof and warp resistant performance is provided, the service life is long, the usage safety when the cable is burned at high temperature is guaranteed, much heavy smoke or poisonous and harmful gas generated by burning of the cable are prevented, environment pollution is little, and convenience is provided for rescue work.

Description

A kind of low smoke and zero halogen is high temperature resistant warp resistance cable

Technical field

The utility model relates to the electric wire field, is specially the high temperature resistant warp resistance cable of a kind of low smoke and zero halogen.

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 structure of thermal insulation difference, not flame resistant, high temperature.Therefore; in breaking out of fire or when being subjected to temperatures involved, the not flame resistant baking of this class cable is difficult to isolated flame; therefore flame these protective layers that are easy to ablate; make cable directly be subjected to the calcination of flame, cause cable can not work because of short circuit, and common cable warp resistance scarce capacity; be subjected to distortion to influence easy damage; useful life is short, can discharge a large amount of dense smokes and toxic and harmful during burning, influences rescue work and atmospheric environment.

The utility model content

The purpose of this utility model provides the high temperature resistant warp resistance cable of a kind of low smoke and zero halogen, not good to solve cable fire resistance traditional in the prior art, when being subjected to the flame calcination, breaking out of fire is short-circuited easily, and warp resistance scarce capacity, useful life is short, can discharge a large amount of dense smokes and toxic and harmful during burning, influence 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 low smoke and zero halogen is high temperature resistant warp resistance 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 first mica tape from inside to outside, fire-resistant inorganic short fiber adhesive-layer and lapping layer, the stranded formation cable core of several insulated wire cores, described cable core is coated with second mica tape outward successively, the inner sheath that Halogen twining package tape and interlacing constitute, described inner sheath is coated with the low-smoke halogen-free polyolefin oversheath, is provided with packed layer between described cable core and second mica tape.

The high temperature resistant warp resistance cable of described a kind of low smoke and zero halogen 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; adopt the design of composite fire layer and second mica tape; for cable provides double-deck high temperature resistant protection; promoted the resistance to elevated temperatures of cable effectively; guaranteed the use safety of cable when being subjected to high temperature sintering; adopt the design of Halogen twining package tape and low-smoke halogen-free polyolefin oversheath; make cable when burning takes place, can not discharge a large amount of dense smokes and toxic and harmful; environmental pollution is less; made things convenient for the carrying out of rescue work, and the design of inner sheath employing interlacing, the interlacing structure has bigger extending space; promote the anti-twist ability of cable effectively, prolonged the useful life of cable.

Description of drawings

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

Embodiment

As shown in Figure 1, a kind of low smoke and zero halogen is high temperature resistant warp resistance 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 first mica tape 2 from inside to outside, fire-resistant inorganic short fiber adhesive-layer 3 and lapping layer 4, the stranded formation cable core of several insulated wire cores, cable core is coated with second mica tape 6 outward successively, the inner sheath 8 that Halogen twining package tape 7 and interlacing constitute, inner sheath 8 is coated with low-smoke halogen-free polyolefin oversheath 9, is provided with packed layer 10 between cable core and second mica tape 6.Fire-resistant inorganic short fiber adhesive-layer 3 adopts polycrystal alumina or polycrystalline mullite short fiber to make.

Claims

1. high temperature resistant warp resistance cable of low smoke and zero halogen, 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 first mica tape from inside to outside, fire-resistant inorganic short fiber adhesive-layer and lapping layer, the stranded formation cable core of several insulated wire cores, described cable core is coated with second mica tape outward successively, the inner sheath that Halogen twining package tape and interlacing constitute, described inner sheath is coated with the low-smoke halogen-free polyolefin oversheath, is provided with packed layer between described cable core and second mica tape.

2. the high temperature resistant warp resistance cable of a kind of low smoke and zero halogen 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.