CN207381116U

CN207381116U - A kind of flexible mineral insulation flexible cable

Info

Publication number: CN207381116U
Application number: CN201720718723.4U
Authority: CN
Inventors: 纪坡; 李小牛; 宋伟; 彭宇
Original assignee: ANHUI RUIZHIXING CABLE GROUP Co Ltd
Current assignee: Anhui ruizhixing Electronic Technology Group Co.,Ltd.
Priority date: 2017-06-20
Filing date: 2017-06-20
Publication date: 2018-05-18
Anticipated expiration: 2027-06-20

Abstract

The utility model discloses a kind of flexible mineral insulation flexible cables, including conductor wire core, mineral insulation flame retardant coating, high-quality mica tape insulating refractory, polyethylene separation sleeve, alkali-free glass wool filler, the wrapped flame-retardant layer of stranding, oxygen barrier layer, low-smoke non-halogen flame-retardant oversheath, the utility model conductor wire core is formed by multifilament conductor strand and more insulated wire twisted synthesizing cables, improves pliability, the entirety degree of cable；Inner layer Ceramic silicon rubber insulating tape and outer layer calcining mica insulation band ensure the continuity and reliability of insulating layer, prevent from, in the disconnection of cable mica insulation band and imperfect, improving cable fire temperature and fire-protection rating；In gap among more insulated wires filled glass fiber gasket for packing and simultaneously twisted synthesizing cable, it ensure that the roundness of cable, the mutual abrasion between insulated wire is prevented again, flexible ceramic SiClx rubber is resistance to can to play good fire insulation heat insulation and with flexibility, bending radius is small, oxygen barrier of preventing fires.

Description

A kind of flexible mineral insulation flexible cable

Technical field

The utility model is related to field of cable technology more particularly to a kind of flexible mineral insulation flexible cables.

Background technology

Mineral insulated cable（MineralInsulatedCable）Abbreviation MI cables.It can be divided by architectural characteristic at present Two kinds of rigidity and flexibility.Rigid mineral insulated cable is that Switzerland engineer ArnoldFrancoisBorel is proposed at the end of the 19th century Imagine, and in patented power in 1896,1934-1936 methods, English have developed rapidly after putting into production.China is also in last century The sixties develop, and start for military field, the mid-80 starts industrialized production, and is progressively connect comprehensively by building field By.The invention of flexible mineral insulation fireproof cable is about to be born in Switzerland's Si Tute cables public affairs in eighties of last century the seventies Department.Flexible mineral insulation cable is by copper stranded conductor, mineral compound insulation and minerals oxygen barrier filling mud and low smoke and zero halogen polyene Hydrocarbon sheath is formed.This cable has non-ignitable, smokeless, nontoxic and fire-resistance property.Since rigid mineral insulated cable is reliable Property, in terms of production and laying the defects of, gradually quit listing in European and American developed countries, flexible mineral insulation fireproof cable becomes fire prevention The mainstream cable product in field.Currently used fire-resistant type mineral insulated cable is typically to have copper core nickel bag conductor and outside Insulating layer, sheath are formed, and lack flexibility, and existing production technology is difficult to ensure that mineral paper glass fiber gasket for packing fills closely knit nothing Gap, and there are stranding surrounding squeeze out filling mineral matter surface is not smooth enough and rounding, minerals filling mud passes through after squeezing out Easily occurs the problem of slight crack causes insulation and fireproof reduced performance when dry.

Utility model content

The purpose of this utility model is to solve shortcoming in the prior art, and a kind of flexible mineral proposed is exhausted Edge flexible cable.

To achieve these goals, the utility model employs following technical solution：

A kind of flexible mineral insulation flexible cable, including conductor wire core, mineral insulation flame retardant coating, high-quality mica tape insulated fireproof Layer, polyethylene separation sleeve, alkali-free glass wool filler, the wrapped flame-retardant layer of stranding, oxygen barrier layer, low-smoke non-halogen flame-retardant oversheath, institute It states and mineral insulation flame retardant coating is extruded on the outside of conductor wire core, high-quality mica tape is extruded on the outside of the mineral insulation flame retardant coating Insulating refractory is extruded with polyethylene separation sleeve, the polyethylene separation sleeve on the outside of the high-quality mica tape insulating refractory Be surrounded with alkali-free glass wool filler, the wrapped flame-retardant layer of stranding is extruded on the outside of the alkali-free glass wool filler, it is described Oxygen barrier layer is extruded on the outside of the wrapped flame-retardant layer of stranding, low-smoke non-halogen flame-retardant oversheath is coated on the outside of the oxygen barrier layer.

A kind of above-mentioned flexible mineral insulation flexible cable, the conductor wire core have several.

A kind of above-mentioned flexible mineral insulation flexible cable, the conductor wire core are formed and more by multifilament conductor strand Insulated wire twisted synthesizing cable.

The beneficial effects of the utility model：The utility model conductor wire core is formed and more by multifilament conductor strand Insulated wire twisted synthesizing cable improves pliability, the entirety degree of cable；Inner layer Ceramic silicon rubber insulating tape and outer layer calcining mica Insulating tape ensures the continuity and reliability of insulating layer, prevents mica insulation band caused by the bending disturbance in cable construction Disconnection and imperfect, improve cable fire temperature and fire-protection rating；Filling glass is fine in gap among more insulated wires Gasket for packing and simultaneously twisted synthesizing cable are tieed up, ensure that the roundness of cable, and prevents the mutual abrasion between insulated wire, is extended Service life；Flexible ceramic SiClx rubber is resistance to can be played good fire insulation heat insulation and have flexibility, and bending radius is small, Fire prevention oxygen barrier.

Description of the drawings

Fig. 1 be the utility model proposes a kind of flexible mineral insulation flexible cable structure diagram.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.

With reference to Fig. 1, a kind of flexible mineral insulation flexible cable, including conductor wire core 1, mineral insulation flame retardant coating 2, high-quality mica The wrapped flame-retardant layer 6 of tape insulation flame retardant coating 3, polyethylene separation sleeve 4, alkali-free glass wool filler 5, stranding, oxygen barrier layer 7, low cigarette without Halogen fire-retardant oversheath 8 tightly coats one layer of inner layer mineral insulation flame retardant coating 2, the mineral outside the outside of the conductor wire core 1 Insulating refractory 2 is made of Ceramic silicon rubber insulating materials, and it is high-quality to coat one layer of outer layer again in inner layer mineral insulation flame retardant coating 2 Mica tape insulating refractory 3 is extruded with polyethylene separation sleeve 4 in the outside of the high-quality mica tape insulating refractory 3 of outer layer and forms one Layer insulated wire, in the intermediate gaps of multiple insulated wires be equipped with alkali-free glass wool filler 5, multiple insulated wire twisted synthesizing cables, The wrapped wrapped flame-retardant layer 6 of stranding outside twisted insulated wire, is extruded with oxygen barrier layer 7 outside the wrapped flame-retardant layer 6 of stranding, it is described every Oxygen layer 7 is made of Ceramic silicon rubber, and low-smoke non-halogen flame-retardant oversheath 8 is extruded with outside Ceramic silicon rubber oxygen barrier layer 7.

It is exhausted that two layers of mineral is tightly coated as the preferred embodiment of the utility model, outside the conductor wire core 1 of the utility model Edge flame retardant coating 2 coats the high-quality mica tape insulating refractory 3 of four layers of outer layer in the outside of inner layer mineral insulation flame retardant coating 2 again.

As the preferred embodiment of the utility model, the conductor wire core 1 of the utility model has several.

As the preferred embodiment of the utility model, the conductor wire core 1 of the utility model is formed by multifilament conductor strand And more insulated wire twisted synthesizing cables.

The above is only the preferable specific embodiment of the utility model, but the scope of protection of the utility model is not This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, according to this practicality New technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims

1. a kind of flexible mineral insulation flexible cable, it is characterised in that：Including conductor wire core（1）, mineral insulation flame retardant coating（2）, it is excellent Matter mica tape insulating refractory（3）, polyethylene separation sleeve（4）, alkali-free glass wool filler（5）, the wrapped flame-retardant layer of stranding（6）、 Oxygen barrier layer（7）, low-smoke non-halogen flame-retardant oversheath（8）, the conductor wire core（1）Outside be extruded with mineral insulation flame retardant coating（2）, The mineral insulation flame retardant coating（2）Outside be extruded with high-quality mica tape insulating refractory（3）, the high-quality mica tape insulation is resistance to Fire bed（3）Outside be extruded with polyethylene separation sleeve（4）, the polyethylene separation sleeve（4）Be surrounded with alkali-free glass wool filling Object（5）, the alkali-free glass wool filler（5）Outside be extruded with the wrapped flame-retardant layer of stranding（6）, the wrapped flame-retardant layer of stranding （6）Outside be extruded with oxygen barrier layer（7）, the oxygen barrier layer（7）Outside be coated with low-smoke non-halogen flame-retardant oversheath（8）.

2. a kind of flexible mineral insulation flexible cable according to claim 1, it is characterised in that：The conductor wire core（1）Have Several.

3. a kind of flexible mineral insulation flexible cable according to claim 1, it is characterised in that：The conductor wire core（1）By Multifilament conductor strand forms and more insulated wire twisted synthesizing cables.