CN206432060U - Silicone insulation fire prevention cable - Google Patents
Silicone insulation fire prevention cable Download PDFInfo
- Publication number
- CN206432060U CN206432060U CN201720139508.9U CN201720139508U CN206432060U CN 206432060 U CN206432060 U CN 206432060U CN 201720139508 U CN201720139508 U CN 201720139508U CN 206432060 U CN206432060 U CN 206432060U
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- layer
- silicone insulation
- conductor
- fire prevention
- conductor cores
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Abstract
The utility model discloses a kind of silicone insulation fire prevention cable; including the conductor cores positioned at center; the outside of conductor cores is surrounded with the mica belt for protecting conductor cores and preventing conductor cores from aoxidizing; extrusion has silicone insulation layer outside mica belt; silicone insulation layer is outer to be surrounded with non-woven fabrics stranding layer; non-woven fabrics stranding layer is wrapped with for preventing conductor cores magnesia fireprotection layer on fire; glass fibre fire prevention setting layer is surrounded with outside magnesia fireprotection layer, the outside of glass fibre fire prevention setting layer is coated with low smoke and zero halogen sheath layer.On the basis of the utility model is except the requirement of good fire protecting performance is met, also with higher combined closure system and good waterproof, decay resistance.
Description
Technical field
The utility model is related to power cable technical field, particularly a kind of fire prevention cable.
Background technology
The medium that cable is transmitted as electric power and electric energy is distributed, is widely used in controlling installation, connection equipment, conveying electric
In terms of power.Short circuit or breaking problem may occur in use for cable, power communication can be caused to interrupt, therefore
Today of information technology fast development, to ensure that the reliability requirement of information transfer and power supply is also more and more higher, this is just right
The requirement of cable performance proposes high requirement.
The performance indications of cable performance are also embodied in addition to the electric conductivity of itself：It is fire protecting performance, humidity resistance, explosion-proof
Performance, decay resistance, temperature performance, expansion character, tensile strength, elasticity, plasticity, hardness, toughness and fatigue strength etc.
Aspect.Wherein, the requirement particularly to cable fire-proof performance is most stringent；Counted according to national departments concerned, in fire cause,
Because fire caused by electric wiring is up to more than 50%, and cable is mainly disposed to underground as the main body in power circuit, very
Difficulty carries out good protection, and this requires that cable will not only have the ability of anti-external flame destruction, and itself also require that can not
With the characteristic for producing burning things which may cause a fire disaster.But cable on the market is only capable of meeting the requirement of one or two kind of function mostly at present, it is impossible to simultaneously
Meet demand of the people to cable many aspects.
The content of the invention
The utility model technical issues that need to address are to provide a kind of power cable, are meeting good fire protecting performance requirement
On the basis of, with higher combined closure system and good waterproof, decay resistance.
In order to solve the above technical problems, technical solution adopted in the utility model is as follows.
A kind of silicone insulation fire prevention cable, including the conductor cores positioned at center, the outside of conductor cores is surrounded with for protecting
Extrusion has silicone insulation layer outside conductor cores and the mica belt for preventing conductor cores from aoxidizing, mica belt, and silicone insulation layer is outer wrapped
There is non-woven fabrics stranding layer, non-woven fabrics stranding layer is wrapped with for preventing conductor cores magnesia fireprotection layer on fire, and magnesia is prevented
Glass fibre fire prevention setting layer is surrounded with outside fire bed, the outside of glass fibre fire prevention setting layer is coated with low smoke and zero halogen sheath
Layer.
A kind of above-mentioned silicone insulation fire prevention cable, the conductor cores are multi-core structures, including at least one is located at center
And section is circular conductor stem, the sectional area of other conductor stems is ellipsoidal structure, and even cloth is in center conductor stem
Around, silicone insulation separating layer is filled between adjacent conductor stem.
A kind of above-mentioned silicone insulation fire prevention cable, the magnesia fireprotection layer and the thickness proportion of low smoke and zero halogen sheath layer are
1：3.
As a result of above technical scheme, technological progress acquired by the utility model is as follows.
The cable that the utility model is provided all is constituted using inorganic matter, itself will not cause fire, and will not fire
Burn, also do not possess combustion-supporting performance, will not more produce toxic and harmful gas, even if outside occur fire, cable remains to normal work,
Reliable guarantee is provided for power supply and information transfer；After condition of a fire removing, cable still can be used without changing, and inorganic matter will not
More than aging, the reachable a century of useful life, therefore construction and maintenance cost can be substantially reduced.
The magnesia powder that fireprotection layer of the present utility model is used has conductor coefficient more more preferable than plastics, and fusing point is even more remote
Higher than the melting temperature of problem, therefore operating temperature, up to 800 DEG C, combined closure system is considerably beyond traditional cable, for more than 16mm
Circuit, a section can be reduced, for do not allow people contact use environment, then can reduce by two sections.
Restrictive coating of the present utility model is made using low-smoke bittern-free highly fire-proof material, with higher decay resistance, and
Other each layers between conductor, insulation and sheath are dense compaction body, hence in so that cable be integrally provided with waterproof, protection against the tide,
The performance of grease proofing and anti-chemical thing infringement.
Brief description of the drawings
Fig. 1 is section of structure of the present utility model.
Wherein：1. conductor cores, 2. mica belts, 3. silicone insulations layer, 4. non-woven fabrics stranding layers, 5. magnesia fireprotection layers,
The setting layer 6. glass fibre is prevented fires, 7. low smoke and zero halogen sheaths layer.
Embodiment
The utility model is further elaborated below in conjunction with the drawings and specific embodiments.
A kind of silicone insulation prevent fires cable, its structure as shown in figure 1, including set gradually from inside to outside conductor cores 1, cloud
Master tape layer 2, silicone insulation layer 3, non-woven fabrics stranding layer 4, magnesia fireprotection layer 5, glass fibre fire prevention setting layer 6 and low smoke and zero halogen
Restrictive coating 7.
Conductor cores 1 are located at center, can be that single can also be multi-core structures.In the present embodiment, conductor cores are multicore
Body structure, including it is circular conductor stem that at least one, which is located at center and section, the sectional area of other conductor stems is ellipse
Shape structure, and even cloth is around center conductor stem, and silicone insulation separating layer is filled between adjacent conductor stem.
The wrapped outside in conductor cores 1 of mica belt 2, for protecting conductor cores and preventing conductor cores from aoxidizing.Mica belt 2
Outer extrusion has silicone insulation layer 3.Silicone insulation layer 3 is extruded into using extrusion equipment under the conditions of 170 ~ 180 DEG C.Non-woven fabrics into
Cable layer 4 is arranged on outside silicone insulation layer 3 using around packet mode, for including silicone insulation layer, mica belt and conductor cores, preventing
Many conductor cores are scattered.Magnesia fireprotection layer 5 is wrapped in outside non-woven fabrics stranding layer 4, for preventing conductor cores on fire.Fireprotection layer is used
Product after the reflection of magnesia and waterglass is filled acquisition.Glass fibre fire prevention setting layer 6 is set using around packet mode
Outside magnesia fireprotection layer 5, for being shaped to fireprotection layer.It is fixed that low smoke and zero halogen sheath layer 7 is coated on glass fibre fire prevention
Outside type layer 6, shield.
In the utility model, the thickness proportion of magnesia fireprotection layer 5 and low smoke and zero halogen sheath layer 7 is 1：3, so that this reality
It can be effectively reduced outer diameter of cable and weight on the basis of excellent fire retardancy energy is ensured, further reduce space with new
Take volume, additionally it is possible to be easily installed.
Claims (3)
- The cable 1. a kind of silicone insulation is prevented fires, it is characterised in that：Including the conductor cores positioned at center（1）, conductor cores（1）Outside It is surrounded with the mica belt for protecting conductor cores and preventing conductor cores from aoxidizing（2）, mica belt（2）Outer extrusion has silicone insulation Layer（3）, silicone insulation layer（3）It is outer to be surrounded with non-woven fabrics stranding layer（4）, non-woven fabrics stranding layer（4）It is wrapped with for preventing from leading Body core magnesia fireprotection layer on fire（5）, magnesia fireprotection layer（5）Outside is surrounded with glass fibre fire prevention setting layer（6）, glass Fiber fire prevention setting layer（6）Outside be coated with low smoke and zero halogen sheath layer（7）.
- 2. a kind of silicone insulation fire prevention cable according to claim 1, it is characterised in that：The conductor cores are many core body knots Structure, including it is circular conductor stem that at least one, which is located at center and section, the sectional area of other conductor stems is tied for ellipse Structure, and even cloth is around center conductor stem, and silicone insulation separating layer is filled between adjacent conductor stem.
- 3. a kind of silicone insulation fire prevention cable according to claim 1, it is characterised in that：The magnesia fireprotection layer（5） With low smoke and zero halogen sheath layer（7）Thickness proportion be 1：3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720139508.9U CN206432060U (en) | 2017-02-16 | 2017-02-16 | Silicone insulation fire prevention cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720139508.9U CN206432060U (en) | 2017-02-16 | 2017-02-16 | Silicone insulation fire prevention cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206432060U true CN206432060U (en) | 2017-08-22 |
Family
ID=59592218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720139508.9U Active CN206432060U (en) | 2017-02-16 | 2017-02-16 | Silicone insulation fire prevention cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206432060U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921180A (en) * | 2021-08-25 | 2022-01-11 | 倪受兵 | Silica gel insulation fireproof cable |
-
2017
- 2017-02-16 CN CN201720139508.9U patent/CN206432060U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921180A (en) * | 2021-08-25 | 2022-01-11 | 倪受兵 | Silica gel insulation fireproof cable |
| CN113921180B (en) * | 2021-08-25 | 2024-03-19 | 罗文长 | Silica gel insulation fire-proof cable |
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