CN206558280U

CN206558280U - A kind of low smoke halogen-free fire retardant fire resistant electric wire

Info

Publication number: CN206558280U
Application number: CN201720301121.9U
Authority: CN
Inventors: 林贤龙
Original assignee: Guangzhou Min Xing Wire & Cable Co Ltd
Current assignee: Guangzhou Min Xing Wire & Cable Co Ltd
Priority date: 2017-03-27
Filing date: 2017-03-27
Publication date: 2017-10-13
Anticipated expiration: 2027-03-27

Abstract

The utility model discloses a kind of low smoke halogen-free fire retardant fire resistant electric wire in Power-line technology field, including conductor cores, the outer wall of the conductor cores is enclosed with screen layer, the outer wall of the screen layer is enclosed with flame retardant coating, the outer wall of the flame retardant coating is enclosed with low-smoke non-halogen flame-retardant layer, the outer wall of the low-smoke non-halogen flame-retardant layer is enclosed with oxygen barrier layer, the outer wall of the oxygen barrier layer is enclosed with oversheath, packed layer is provided between flame retardant coating and the low-smoke non-halogen flame-retardant layer, the entrance of extraneous oxygen when occurring fire can be prevented by oxygen barrier layer and cause the intensity of a fire to increase, the smell of the halogen acid gas produced when occurring fire can be effectively removed by low-smoke non-halogen flame-retardant layer, and with certain flame retardant effect, prevent spreading for the intensity of a fire, the conductor cores in its inner chamber can be protected by flame retardant coating and screen layer, prevent fire spread from occurring surprisingly to caused in conductor cores.

Description

A kind of low smoke halogen-free fire retardant fire resistant electric wire

Technical field

The utility model is related to Power-line technology field, specially a kind of low smoke halogen-free fire retardant fire resistant electric wire.

Background technology

With the development of the industry such as power industry and building real estate, it is desirable to which electric wire not only has flame-retardant Can, while also requiring that electric wire product is environmentally safe, the structure of common wiring cable is as insulation using flame-proof PVC Or oversheath, flame-proof PVC burning when can discharge the equipment and instrument and meter around a large amount of halogen acid gas, heavy corrosion, together When also have very big harm to health of human body, usual fire-resisting cable uses Mica tape and makes oversheath, not only produces effect Rate is low, and difficulty is big, reliability is low for control, and mica tape can not bear to be hardened after too high voltage, burning, embrittlement, It is easy to come off, once occurring fire, mica layer easily becomes shed powder, loses protective effect, and can not bear Water drenches, hit, so as to have impact on communication, electric power in case of fire safe and smooth.

Utility model content

The purpose of this utility model is to provide a kind of low smoke halogen-free fire retardant fire resistant electric wire, to solve above-mentioned background skill The common cable proposed in art can not be fire-retardant, easily on fire when occurring fire, and the problems such as discharge halogen acid gas.

To achieve the above object, the utility model provides following technical scheme：A kind of low smoke halogen-free fire retardant fire resistant electric wire electricity Cable, including conductor cores, the outer wall of the conductor cores are enclosed with screen layer, and the outer wall of the screen layer is enclosed with flame retardant coating, described The outer wall of flame retardant coating is enclosed with low-smoke non-halogen flame-retardant layer, and the outer wall of low-smoke non-halogen flame-retardant layer is enclosed with oxygen barrier layer, it is described every The outer wall of oxygen layer is enclosed between oversheath, flame retardant coating and the low-smoke non-halogen flame-retardant layer and is provided with packed layer.

It is preferred that, the packed layer is low-smoke non-halogen flame-retardant packed layer.

It is preferred that, the flame retardant coating is Ceramic silicon rubber layer.

It is preferred that, the low-smoke non-halogen flame-retardant layer is organosilane crosslinked polyethylene insulation layer.

Compared with prior art, the beneficial effects of the utility model are：It can be prevented outside when occurring fire by oxygen barrier layer The entrance of boundary's oxygen and cause the intensity of a fire to increase, by low-smoke non-halogen flame-retardant layer can effectively remove occur fire when it is produced The smell of halogen acid gas, and with certain flame retardant effect, spreading for the intensity of a fire is prevented, can be in it by flame retardant coating and screen layer Conductor cores in chamber are protected, and prevent fire spread from occurring surprisingly to caused in conductor cores.

Brief description of the drawings

Fig. 1 is the utility model structural representation.

In figure：1 conductor cores, 2 screen layers, 3 flame retardant coatings, 4 low-smoke non-halogen flame-retardants layer, 5 oxygen barrier layers, 6 oversheaths, 7 packed layers.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.

Referring to Fig. 1, the utility model provides a kind of technical scheme：A kind of low smoke halogen-free fire retardant fire resistant electric wire, bag Conductor cores 1 are included, the outer wall of the conductor cores 1 is enclosed with screen layer 2, and the outer wall of the screen layer 2 is enclosed with flame retardant coating 3, described The outer wall of flame retardant coating 3 is enclosed with low-smoke non-halogen flame-retardant layer 4, and the outer wall of the low-smoke non-halogen flame-retardant layer 4 is enclosed with oxygen barrier layer 5, institute The outer wall for stating oxygen barrier layer 5 is enclosed with oversheath 6, and packed layer 7 is provided between flame retardant coating 3 and the low-smoke non-halogen flame-retardant layer 4.

Wherein, the packed layer 7 is low-smoke non-halogen flame-retardant packed layer, can be released when occurring fire during reduction burning Halogen acid gas, the flame retardant coating 3 is Ceramic silicon rubber layer, the conductor cores 1 in inner chamber can be protected and not by extraneous institute Cause cisco unity malfunction with influence, the low-smoke non-halogen flame-retardant layer 4 is organosilane crosslinked polyethylene insulation layer, passes through crosslinking Mode preferably makes polyethylene products perfectly be combined together, and will not largely occur halogen acid gas, and tool when occurring fire There is good flame retardant effect, further prevent spreading for the intensity of a fire.

When occurring fire, when the intensity of a fire is excessive, there can be damage to its electric wire, oxygen barrier layer 5 has effectively obstructed outer The entrance of boundary's oxygen, electric wire oxygen supply is not enough, and the intensity of a fire can be suppressed, because the material of low-smoke non-halogen flame-retardant layer 4 is Crosslinked polyethylene product, therefore substantial amounts of halogen acid gas will not be produced, and this layer also has necessarily fire-retardant to its extraneous intensity of a fire Effect, when low-smoke non-halogen flame-retardant layer 4 is burned out, also there are flame retardant coating 3 in inner chamber and screen layer 2 intensity of a fire can be carried out every Absolutely.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of low smoke halogen-free fire retardant fire resistant electric wire, including conductor cores (1), it is characterised in that：Outside the conductor cores (1) Wall is enclosed with screen layer (2), and the outer wall of the screen layer (2) is enclosed with flame retardant coating (3), the outer wall parcel of the flame retardant coating (3) There is low-smoke non-halogen flame-retardant layer (4), the outer wall of the low-smoke non-halogen flame-retardant layer (4) is enclosed with oxygen barrier layer (5), the oxygen barrier layer (5) Outer wall be enclosed with oversheath (6), be provided with packed layer (7) between the flame retardant coating (3) and low-smoke non-halogen flame-retardant layer (4).

2. a kind of low smoke halogen-free fire retardant fire resistant electric wire according to claim 1, it is characterised in that：The packed layer (7) it is low-smoke non-halogen flame-retardant packed layer.

3. a kind of low smoke halogen-free fire retardant fire resistant electric wire according to claim 1, it is characterised in that：The flame retardant coating (3) it is Ceramic silicon rubber layer.

4. a kind of low smoke halogen-free fire retardant fire resistant electric wire according to claim 1, it is characterised in that：The low smoke and zero halogen Flame-retardant layer (4) is organosilane crosslinked polyethylene insulation layer.