CN213988367U - Irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable - Google Patents

Abstract

The utility model discloses an irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable, which comprises a gnawing-proof cable cloth, wherein the inner side wall of the gnawing-proof cable cloth is fixedly sleeved with a cable outer insulating layer, the inner side of the cable outer insulating layer is provided with a flame-retardant layer, an armor is arranged between the flame-retardant layer and the cable outer insulating layer, the inner side wall of the flame-retardant layer is fixedly provided with a heat-insulating layer, and the inner side wall of the heat-insulating layer is fixedly connected with a shielding layer, the modifier is added into the asphalt, so that the oxidation resistance and the toughness of the asphalt are improved, and the corrosion of the cable can be prevented.

Description

Irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to an irradiation cross-linking does not have steamed low fire-retardant high performance cable of cigarette.

Background

The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion, the wire and cable in a broad sense is also called as cable for short, the cable in a narrow sense is insulated cable, and it can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer protective layers, the cable may also have additional uninsulated conductors, and the flame retardant cable is a more special cable of the group of cables, distinguished from the ordinary cable, the flame retardant cable has special flame retardant, low smoke and toxic smoke suppression properties, except for the required properties of 694: 1990, in case of fire, the common polyvinyl chloride insulated wire, the thick black smoke and the hydrochloric acid gas of toxic gas damage the fatality and hinder the rescue action, and is mainly used for occasions with high flame retardant requirements, such as hotels, banks, hospitals, factories, comprehensive wiring of businesses and residences, and the like.

At present, the existing flame-retardant cable still has the problems that the flame retardance is poor, a single thin flame-retardant layer is usually arranged in the cable, no protective measures are provided for the outer surface of the cable, and the cable is easily eaten by rats and other animals in the field, so that the insulating layer of the cable is damaged, and therefore a novel irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an irradiation cross-linking does not have steamed low fire-retardant high performance cable of cigarette, includes prevents gnawing cable cloth, prevent gnawing the fixed cable external insulation layer that has cup jointed of cable cloth inside wall, cable external insulation layer inboard is provided with fire-retardant layer, be provided with the armor between fire-retardant layer and the cable external insulation layer, fire-retardant in situ side wall fixed mounting has the insulating layer, insulating layer inside wall fixedly connected with shielding layer, the inside core main part of leading that is provided with of shielding layer.

As a further description of the above technical solution:

the outer side wall of the anti-gnawing cable cloth is coated with the antioxidant coating, and the anti-gnawing cable cloth is made of stainless steel.

As a further description of the above technical solution:

the antioxidant coating is modified antioxidant asphalt.

As a further description of the above technical solution:

the cable outer insulating layer is made of PVC materials.

As a further description of the above technical solution:

the flame-retardant layer is made of polyethylene material.

As a further description of the above technical solution:

and a gap between the guide core main body and the shielding layer is filled with a flame-retardant material, and the flame-retardant material is formed by mixing glass fiber and a flame retardant.

As a further description of the above technical solution:

lead the core main part and lead the core including copper, the fixed cover of core lateral wall is led to copper has connect the heat-resistant layer, the fixed cover of heat-resistant layer lateral wall has connect and leads the core insulating layer.

The utility model discloses following beneficial effect has:

1. compared with the prior art, through being provided with anti-oxidant coating and preventing gnawing devices such as cable cloth, in order to prevent that the cable from being gnawed by animals such as mouse in field environment, it prevents gnawing cable cloth to have set up, it is stainless steel to prevent gnawing cable cloth, difficult emergence is corroded, and hardness height can not be gnawed by rodent, and still scribble one deck anti-oxidant coating at the lateral wall of preventing gnawing cable cloth, anti-oxidant coating is modified anti-oxidant pitch, add the modifier in pitch, the oxidation resistance and the toughness of pitch have been improved, and can prevent the corruption of cable.

2. This kind of irradiation cross-linking does not have steamed low fire-retardant high performance cable of cigarette, through being provided with fire-retardant layer, insulating layer and fire-retardant material, a plurality of fire-retardant structures have been set up, fire-retardant layer is halogen-free PVC material, add metallic compound in the PVC material, accomplish the fire behaviour that can improve the system effectively and restrain the formation of cigarette, reach low cigarette purpose smokeless even, and fire-retardant material has added the fire retardant on original glass fiber basis, glass fiber's fire behaviour has been improved greatly, accomplish more difficult so that the ground step of incombustible, the protection cable leads the core. Drawings

FIG. 1 is a schematic cross-sectional view of an irradiation cross-linked halogen-free low-smoke flame-retardant high-performance cable according to the present invention;

FIG. 2 is a schematic view of a connection structure between the anti-oxidation coating, the anti-gnawing cable cloth and the cable outer insulation layer;

fig. 3 is a schematic structural view of the guide core main body.

Illustration of the drawings:

1. preventing gnawing the cable cloth; 2. an antioxidant coating; 3. an outer cable insulation layer; 4. armoring; 5. a flame retardant layer; 6. a thermal insulation layer; 7. a shielding layer; 8. a flame retardant material; 9. a core body; 10. a heat-resistant layer; 11. a copper conductive core; 12. and a core conducting insulating layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides an irradiation cross-linking does not have steamed low fire-retardant high performance cable of cigarette, including preventing gnawing cable cloth 1, prevent gnawing 1 inside wall of cable cloth and fixedly cup jointed cable external insulation layer 3, 3 inboards of cable external insulation layer are provided with fire-retardant layer 5, are provided with armor 4 between fire-retardant layer 5 and the cable external insulation layer 3, and 5 inside wall fixed mounting on fire-retardant layer have insulating layer 6, 6 inside wall fixedly connected with shielding layer 7 on insulating layer, and shielding layer 7 is inside to be provided with leads core main part 9.

The outer side wall of the anti-gnawing cable cloth 1 is coated with the anti-oxidation coating 2, the anti-gnawing cable cloth 1 is made of stainless steel, the stainless steel is firm, high in hardness and durable, the stainless steel is not prone to rust and corrosion and can effectively prevent outdoor rats from gnawing, the cable outer insulating layer 3 is made of PVC materials, the PVC materials are nonflammable, high in strength, weather-resistant and excellent in geometric stability and good in insulating property, the anti-oxidation coating 2 is modified anti-oxidation asphalt, the anti-oxidation performance of the asphalt is greatly improved by adding a modifier into the asphalt, the asphalt can be anti-corrosive, the flame-retardant layer 5 is made of polyethylene materials, the polyethylene materials are radiation-crosslinked polyethylene materials through a radiation-crosslinking process, the polyethylene materials have the advantages that few smog are generated under the condition of flame combustion, and gas does not contain halogen elements, so that the gas is nontoxic (or low in toxicity), add metallic compound in PVC material, accomplish to improve the flame retardant property of system and further restrain the formation of cigarette effectively, the clearance department between core main part 9 and the shielding layer 7 is filled with flame retardant material 8, flame retardant material 8 is by glass fiber and fire retardant hybrid forming, the fire retardant can make glass fiber's fire resistance further improve, and then reach the degree of difficult fire or even incombustible, core main part 9 leads core 11 including copper, the fixed cover of 11 lateral walls of copper leads core has been cup jointed heat-resistant layer 10, the fixed cover of 10 lateral walls of heat-resistant layer has led core insulating layer 12, it is copper to lead the core, copper's resistivity is lower and is made the allowable current-carrying capacity of cable bigger, make the cable possess higher current-carrying capacity performance

The working principle is as follows: the irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable has the advantages that the flame-retardant layer 5, the heat-insulating layer 6 and the flame-retardant material 8 are arranged, so that the resistor has the flame-retardant and non-combustible performance, the flame-retardant layer 5 is made of polyethylene materials as basic raw materials, the amount of smoke generated during flame ignition through irradiation crosslinking is small, the released smoke does not contain halogen, the smoke is non-toxic, metal compounds are added to further increase the flame-retardant performance and inhibit the generation of the smoke, the smoke amount is lower to the smoke-free degree, the flame-retardant material 8 is formed by mixing glass fibers and a flame retardant, the glass fibers are flame-retardant materials and can absorb impact energy, the original flame retardance is improved by mixing with the flame retardant, the inner core of the cable is protected by absorbing the impact energy, the glass fibers and the heat-insulating layer 6 are matched to achieve real flame-retardant low smoke and aim of field rodents to eat, the anti-gnawing cable cloth 1 is added, and the anti-oxidation coating 2 is coated outside the anti-gnawing cable cloth 1, so that rodents are prevented from gnawing, and the cable is prevented from being corrupted.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (7)

1. The utility model provides an irradiation cross-linking does not have steamed low fire-retardant high performance cable of cigarette, includes prevents gnawing cable cloth (1), its characterized in that: prevent gnawing fixed cable insulation layer (3) of having cup jointed of cable cloth (1) inside wall, cable insulation layer (3) inboard is provided with fire-retardant layer (5), be provided with armor (4) between fire-retardant layer (5) and cable insulation layer (3), fire-retardant layer (5) inside wall fixed mounting has insulating layer (6), insulating layer (6) inside wall fixedly connected with shielding layer (7), shielding layer (7) inside is provided with leads core main part (9).

2. The irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable according to claim 1, characterized in that: the outer side wall of the anti-gnawing cable cloth (1) is coated with the antioxidant coating (2), and the anti-gnawing cable cloth (1) is made of stainless steel.

3. The irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable according to claim 2, characterized in that: the antioxidant coating (2) is modified antioxidant asphalt.

4. The irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable according to claim 1, characterized in that: the cable outer insulating layer (3) is made of PVC materials.

5. The irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable according to claim 1, characterized in that: the flame-retardant layer (5) is made of polyethylene material.

6. The irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable according to claim 1, characterized in that: and a gap between the guide core main body (9) and the shielding layer (7) is filled with a flame-retardant material (8), and the flame-retardant material (8) is formed by mixing glass fiber and a flame retardant.

7. The irradiation crosslinking halogen-free low-smoke flame-retardant high-performance cable according to claim 1, characterized in that: lead core main part (9) and lead core (11) including the copper, the fixed cover of core (11) lateral wall is led to the copper has connect heat-resistant layer (10), the fixed cover of heat-resistant layer (10) lateral wall has connect and leads core insulating layer (12).

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