CN210467379U

CN210467379U - Low-smoke halogen-free fire-resistant wire

Info

Publication number: CN210467379U
Application number: CN201921882067.7U
Authority: CN
Inventors: 孙林娜; 孙孝林; 孙五州; 马晓博
Original assignee: Henan Hengsheng Tongda Wire And Cable Co Ltd
Current assignee: Henan Hengsheng Tongda Wire And Cable Co Ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-05-05
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a low smoke and zero halogen fire-resistant electric wire, including insulating wire bundle and protective layer, insulating wire bundle includes the mica flame retardant coating that conductor, cladding formed at the mica tape outside the conductor and winds the zero halogen low cigarette polyolefin insulating layer of package cladding in the outside of mica flame retardant coating, the protective layer is by interior sand layer, shielding layer, strip flame retardant coating, metal flame retardant coating and the low cigarette sheath of zero halogen that sets gradually to the outside. This electric wire fire resistance is good, has avoided causing the electric wire short circuit when the electric wire burning, makes power equipment can not normal operating and influence the problem that personnel evacuated, and this electric wire belongs to low smoke and zero halogen type electric wire, has higher fire resistance, stands under flame direct combustion, does not take place short circuit and short circuit fault in certain time, and low smoke and zero halogen, green is a safe and reliable's electric wire. Therefore, when a fire disaster occurs, the loss is favorably reduced, and the fire-fighting protection device is particularly suitable for industries with higher fire-fighting requirements, such as electric power, large buildings, railways, ships and the like.

Description

Low-smoke halogen-free fire-resistant wire

Technical Field

The utility model relates to the technical field of cables, concretely relates to low smoke and zero halogen fire-resistant electric wire.

Background

Along with the development of society, people's attention is more and more aroused in the fire prevention of high-rise building, important building, for improving the fire safety level, mostly can adopt fire-retardant cable or fire-resistant cable, to the building that requires more much, for example large-scale museum can select magnesium oxide insulation fireproof cable for use. The flame-retardant cable only adds the flame retardant into the insulating material and the sheath material, so the insulating material used by the flame-retardant cable can still be burnt, once a fire disaster occurs, the so-called flame-retardant cable still can burn gas bear fire, and the cable can also have breakdown and other faults during operation to cause the fire disaster. A large amount of toxic smoke is generated during burning of a common cable, and most of people injured in a fire disaster are suffocated or poisoned to die due to the smoke.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a low smoke and zero halogen fire-resistant electric wire, this electric wire have excellent fire-retardant and fire resistance, and low smoke and zero halogen, green is a safe and reliable's electric wire.

The utility model provides a pair of low smoke and zero halogen fire-resistant electric wire, including insulating wire bundle and protective layer, insulating wire bundle includes the mica flame retardant coating that conductor, cladding formed at the mica tape outside the conductor and winds the zero halogen low cigarette polyolefin insulating layer of package cladding in the outside of mica flame retardant coating, the protective layer is by interior sand layer, shielding layer, strip flame retardant coating, metal flame retardant coating and the low cigarette sheath of zero halogen that sets gradually to the outside.

Further, the belt material flame retardant coating comprises a double-layer ceramic silica gel belt and a double-layer low-smoke halogen-free flame retardant belt, and the double-layer ceramic silica gel belt and the double-layer low-smoke halogen-free flame retardant belt are arranged in the inner direction and the outer direction according to a layer of ceramic silica gel belt, a layer of low-smoke halogen-free flame retardant belt, a layer of ceramic silica gel belt and a layer of low-smoke halogen-free flame retardant belt.

Further, the metal refractory layer is a steel strip.

Further, the halogen-free low-smoke sheath is a halogen-free low-smoke polyolefin sheath.

Further, the conductor is a copper conductor.

Further, the thickness of the fire extinguishing sand layer is 1.5-3.5 mm.

Further, the thickness of the halogen-free low-smoke polyolefin insulating layer is 1.1-1.5 mm.

Further, the thickness of the halogen-free low-smoke sheath is 2.6-3.2 mm.

The utility model has the advantages that:

the embodiment provides a pair of low smoke and zero halogen fire-resistant electric wire, fire resistance is good, has avoided causing the electric wire short circuit when the electric wire burning, makes power equipment can not normal operating and influence the problem that personnel evacuated, and this electric wire belongs to low smoke and zero halogen type electric wire, has higher fire resistance, stands under flame direct combustion, does not take place short circuit and short circuit fault in certain time, and low smoke and zero halogen, green is a safe and reliable's electric wire. Therefore, when a fire disaster occurs, the loss is favorably reduced, and the fire-fighting protection device is particularly suitable for industries with higher fire-fighting requirements, such as electric power, large buildings, railways, ships and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a low-smoke halogen-free fire-resistant electric wire according to a first embodiment of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Referring to fig. 1, a low smoke zero halogen fire-resistant wire according to a first embodiment of the present invention includes an insulated wire bundle 1 and a protective layer 2, the insulated wire bundle 1 includes a conductor 11, a mica fire-resistant layer 12 formed by a mica tape coated outside the conductor, and a halogen-free low smoke polyolefin insulating layer 13 coated outside the mica fire-resistant layer, and the protective layer 2 is sequentially provided with a fire-extinguishing sand layer 21, a shielding layer 22, a tape fire-resistant layer 23, a metal fire-resistant layer 24, and a halogen-free low smoke sheath 25 from inside to outside. The conductor 11 is a copper conductor. The mica fire-resistant layer 12 formed by mica tapes is coated on the outer surface of the conductor 11, the coated halogen-free low-smoke polyolefin insulating layer 13 is wrapped on the outer side of the mica fire-resistant layer 12, the protective layer 2 is arranged outside the insulated wire bundle 1, and the protective layer 2 is sequentially provided with a fire-extinguishing sand layer 21, a shielding layer 22, a belt material fire-resistant layer 23, a metal fire-resistant layer 24 and a halogen-free low-smoke sheath 25 from inside to outside. The fire extinguishing sand layer has excellent fire resistance and can prevent fire from rapidly spreading to the insulating layer. The fire resistance of electric wire is better for strip flame retardant coating, metal flame retardant coating and the low smoke sheath that does not have steamed that set up make, and low smoke and zero halogen is nontoxic, can effectively reduce the production of poisonous flue gas when the conflagration breaing out, improves the possibility that personnel survived in the conflagration.

In this embodiment, the belt material fire-retardant layer 23 includes a double-layer ceramic silica gel band and a double-layer low-smoke halogen-free flame-retardant band, and the double-layer ceramic silica gel band and the double-layer low-smoke halogen-free flame-retardant band are arranged in the inner and outer directions according to a layer of ceramic silica gel band, a layer of low-smoke halogen-free flame-retardant band, a layer of ceramic silica gel band and a layer of low-smoke halogen-free flame-retardant band.

In this embodiment, the metallic refractory layer 24 is a steel strip. The halogen-free low-smoke sheath 25 is a halogen-free low-smoke polyolefin sheath.

The thickness of the fire extinguishing sand layer is 1.5-3.5 mm. The thickness of the halogen-free low-smoke polyolefin insulating layer is 1.1-1.5 mm. The thickness of the halogen-free low-smoke sheath is 2.6-3.2 mm. In the embodiment, the thickness of the fire extinguishing sand layer is 2.3 mm; the thickness of the halogen-free low-smoke polyolefin insulating layer is 1.4 mm; the thickness of the halogen-free low-smoke sheath is 2.8 mm.

The embodiment of the utility model provides a low smoke and zero halogen fire-resistant electric wire has fire resistance, has avoided causing the electric wire short circuit when the electric wire burning, makes power equipment can not normal operating and influence the problem that personnel evacuated, and this electric wire belongs to low smoke and zero halogen type electric wire, has higher fire resistance, stands under flame direct combustion, does not take place short circuit and short-circuit fault in certain time, and low smoke and zero halogen, green is a safe and reliable's electric wire. Therefore, when a fire disaster occurs, the loss is favorably reduced, and the fire-fighting protection device is particularly suitable for industries with higher fire-fighting requirements, such as electric power, large buildings, railways, ships and the like.

It should be noted that, in the present invention, the materials are all known materials, and can be directly purchased and used from the market.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a low smoke and zero halogen fire-resistant electric wire, includes insulating wire bundle and protective layer, its characterized in that, insulating wire bundle includes the conductor, the mica flame retardant coating that the cladding is formed in the mica tape outside the conductor and winds the zero halogen low smoke polyolefin insulating layer of package cladding in the outside of mica flame retardant coating, the protective layer is by interior sand layer, shielding layer, strip flame retardant coating, metal flame retardant coating and the low smoke sheath of zero halogen that sets gradually outside to.

2. The low smoke zero halogen fire-resistant wire of claim 1, wherein the tape fire-resistant layer comprises a double-layer ceramic silica gel tape and a double-layer low smoke zero halogen fire-resistant tape, and the double-layer ceramic silica gel tape and the double-layer low smoke zero halogen fire-resistant tape are arranged in an inward and outward direction according to a layer of ceramic silica gel tape, a layer of low smoke zero halogen fire-resistant tape, a layer of ceramic silica gel tape and a layer of low smoke zero halogen fire-resistant tape.

3. The low smoke, zero halogen, fire resistant wire of claim 2, wherein the metal fire resistant layer is a steel band.

4. The low smoke, zero halogen, fire resistant wire of claim 3, where the halogen-free low smoke jacket is a halogen-free low smoke polyolefin jacket.

5. The low smoke, zero halogen, fire resistant electrical wire of claim 1, wherein said conductor is a copper conductor.

6. The low-smoke zero-halogen fire-resistant wire according to claim 1, wherein the thickness of the fire extinguishing sand layer is 1.5-3.5 mm.

7. The low-smoke zero-halogen fire-resistant wire of claim 6, wherein the thickness of the halogen-free low-smoke polyolefin insulation layer is 1.1-1.5 mm.

8. The low-smoke zero-halogen fire-resistant wire of claim 7, wherein the thickness of the halogen-free low-smoke sheath is 2.6-3.2 mm.