CN202976953U

CN202976953U - Halogen-free low smoke flame retardant heat-resisting fireproof control cable

Info

Publication number: CN202976953U
Application number: CN 201220747494
Authority: CN
Inventors: 韩惠福; 孙超南; 王敏; 朱崤; 冯保磊; 朱玉萍; 吴亚丽
Original assignee: SIAIT CABLE CO Ltd; ANHUI SIAIT CABLES GROUP Co Ltd
Current assignee: SIAIT CABLE CO Ltd; ANHUI SIAIT CABLES GROUP Co Ltd
Priority date: 2012-12-31
Filing date: 2012-12-31
Publication date: 2013-06-05
Anticipated expiration: 2022-12-31

Abstract

The utility model discloses a halogen-free low smoke flame retardant heat-resisting fireproof control cable. In the utility model, each insulation wire core is formed by an oxygen-free copper conductor, a synthetic mica tape fireproof layer wrapped outside the conductor, and an irradiation cross-linked polyethylene insulation layer extruded on the fireproof layer. A cable core is formed by twisting a plurality of insulation wire cores, and cable core gaps are filled with filling layers made of inorganic paper strings. A polyester tape wrapping layer is overlaid and wrapped outside the cable core, and an oxygen-free copper shielding layer is woven on the polyester tape wrapping layer successively; a polyester tape second wrapping layer is wrapped outside the shielding layer, and a thermoplastic polyolefin inner sheath is extruded on the second wrapping layer successively; a galvanized steel wire armor layer is wound outside the inner sheath, a third wrapping layer is wrapped in an overlapping manner outside the armor layer, and the outermost layer of the cable is extruded with a thermoplastic polyolefin outer sheath. The halogen-free low smoke flame retardant heat-resisting fireproof control cable has the advantages of halogen free, low smoke, flame retardance, fire prevention, heat resistance, corrosion prevention, tension resistance, anti-interference performance and the like, and further has the advantages such as excellent electrical, mechanical and environmental protection features.

Description

LSOH anti-flaming heat resistant fire-proof control cables

Technical field:

The utility model relates to a kind of LSOH anti-flaming heat resistant fire-proof control cables.

Background technology:

Along with the raising of people's environmental consciousness and the quickening of Chinese society economic construction paces, LSOH anti-flaming heat resistant fire-proof cable is widely used in important department and the densely populated public places such as oil, petrochemical industry, skyscraper, subway, power plant, nuclear power station, tunnel, when breaking out of fire, cable line can keep normal operation within a certain period of time, do not discharge simultaneously corrosive gas during cable fire, and light transmission is good, rescue work is very helpful, can reduces casualties and damage to property to a great extent.

The development of domestic LSOH anti-flaming heat resistant fire-proof cable is started late, the technical merit of each producer is uneven, add more and more higher to the requirement of fire-retardant, fire prevention, environmental protection in recent years, cause many producers because technical force is limited, can not design, produce the LSOH anti-flaming heat resistant fire-proof cable product that satisfies specification requirement.This just requires the producer must the break-through skill barrier, sets up the R﹠D team of oneself, develops the product with independent intellectual property rights, like this, will drive the fast development of enterprise, will produce good society and economic benefit.

Summary of the invention:

For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of LSOH anti-flaming heat resistant fire-proof control cables, it has Halogen, low cigarette, fire-retardant, fire prevention, heat-resisting, anticorrosion, tension, the characteristic such as anti-interference, also have simultaneously the characteristics such as excellent electric, mechanical, environmental protection, can be widely used in the control system of oil, petrochemical industry, subway, skyscraper and densely populated public place etc., product performance index is better than the international standard requirement.

The utility model technical solution problem adopts following technical scheme:

LSOH anti-flaming heat resistant fire-proof control cables, by the oxygen-free copper conductor, wrappedly consist of insulated wire cores in the synthetic mica tape fireprotection layer of described conductor outside and the IXPE insulating barrier that extrudes on described fireprotection layer, be twisted into cable core by many described insulated wire cores, the cable core gap is provided with inorganic paper string packed layer;

Overlappingly successively outside described cable core be surrounded with the polyester belt lapping layer, be woven with the copper free wire screen, described screen is surrounded with successively polyester belt the second lapping layer outward, is extruded with the TPO inner sheath, be wound with the zinc-coated wire armour outside described inner sheath, adopt overlapping the 3rd lapping layer that is surrounded with of band outside described armour, the outermost layer of cable is extruded with the TPO oversheath.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

1, in the utility model, fireprotection layer adopts synthetic mica tape wrapped, and its temperature resistant grade reaches 1000 ℃, and namely under 1000 ℃ of flame conditions, cable can normally move 90 minutes, guarantees the normal operation of various control system, reduces unnecessary loss.

2, the utility model insulating barrier adopts 125 ℃ of IXPE after electron irradiation is crosslinked, and thermal endurance class and mechanical performance improve greatly, guarantees that cable has excellent heat-resisting and mechanical performance.Serviceability temperature reaches 125 ℃ simultaneously, compares with the general control cable, and thermal endurance class is high, and rise appreciably useful life.

3, the utility model adopts the braiding copper free wire as screen, has excellent anti-interference, plays obvious shield effectiveness, improves the useful life of cable.

4, extruding thermoplastic halogen-free and low-smoke high flame retardant polyolefin inner/outer sheath in the utility model is a kind of novel environment friendly material, has the characteristics such as excellent anticorrosion, fire-retardant, Halogen, unleaded, floride-free, alkali-free, satisfies instructions for use fully.

Description of drawings:

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

Number in the figure: 1 conductor, 2 fireprotection layers, 3 insulating barriers, 4 packed layers, 5 lapping layers, 6 screens, 7 second lapping layers, 8 inner sheaths, 9 armours, 10 the 3rd lapping layers, 11 oversheaths.

Embodiment:

embodiment: referring to Fig. 1, the LSOH anti-flaming heat resistant fire-proof control cables of this enforcement, by oxygen-free copper conductor 1, wrappedly consist of insulated wire cores in the outer field synthetic mica tape fireprotection layer 2 of conductor 1 and the IXPE insulating barrier 3 that extrudes on fireprotection layer 2, be twisted into cable core by many eradications edge core, the cable core gap is provided with the inorganic paper string packed layer 4 of LSOH anti-flaming, the overlapping high-temperature high-insulation polyester belt lapping layer 5 that is surrounded with successively outside cable core, be woven with copper free wire screen 6, and be surrounded with successively high-temperature high-insulation polyester belt the second lapping layer 7 outside screen, be extruded with thermoplastic halogen-free and low-smoke high flame retardant polyolefin inner sheath 8, inner sheath is wound with zinc-coated wire armour 9 outward, armour adopts overlapping the 3rd lapping layer 10 that is surrounded with of halogen-free high flame-retardant band outward, the outermost layer of cable is extruded with thermoplastic halogen-free and low-smoke high flame retardant polyolefin oversheath 11.

In concrete enforcement, corresponding structure setting and material are selected to be respectively:

Conductor 1 is to adopt the oxygen-free copper conductor, conductor layer any surface finish, without burr;

Fireprotection layer 2 adopts three laminated one-tenth mica tapes overlapping wrapped, and the wrapped rate of putting up is not less than 40%;

Insulating barrier 3 is to be extruded by IXPE, and adopts electron irradiation crosslinked;

Packed layer 4 adopts the inorganic paper string of LSOH anti-flaming, fills closely knit, rounding;

Lapping layer 5 adopts the high-temperature high-insulation polyester belt overlapping wrapped in the cable core outside;

Screen 6 adopts the copper free wire braiding structure;

The second lapping layer 7 adopts the high-temperature high-insulation polyester belt overlapping wrapped in the screen outside;

Inner sheath 8 adopts and extrudes thermoplastic halogen-free and low-smoke high flame retardant polyolefin;

Armour 9 adopts and is wound around the seizing wire structure;

The 3rd lapping layer 10 adopts the halogen-free high flame-retardant band overlapping wrapped in the armour outside;

Oversheath 11 adopts and extrudes thermoplastic halogen-free and low-smoke high flame retardant polyolefin.

Claims

1. LSOH anti-flaming heat resistant fire-proof control cables, it is characterized in that by oxygen-free copper conductor (1), wrappedly consist of insulated wire cores in the outside synthetic mica tape fireprotection layer (2) of described conductor (1) and the IXPE insulating barrier (3) that extrudes on described fireprotection layer (2), be twisted into cable core by many described insulated wire cores, the cable core gap is provided with inorganic paper string packed layer (4); Overlappingly successively outside described cable core be surrounded with polyester belt lapping layer (5), be woven with copper free wire screen (6), described screen is surrounded with successively polyester belt the second lapping layer (7) outward, is extruded with TPO inner sheath (8), be wound with zinc-coated wire armour (9) outside described inner sheath (8), adopt overlapping the 3rd lapping layer (10) that is surrounded with of band outside described armour, the outermost layer of cable is extruded with TPO oversheath (11).