CN108538480A - A kind of novel mineral insulating flexible fireproof cable - Google Patents
A kind of novel mineral insulating flexible fireproof cable Download PDFInfo
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- CN108538480A CN108538480A CN201810231360.0A CN201810231360A CN108538480A CN 108538480 A CN108538480 A CN 108538480A CN 201810231360 A CN201810231360 A CN 201810231360A CN 108538480 A CN108538480 A CN 108538480A
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- layer
- mineral
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- cable
- insulating flexible
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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Abstract
A kind of novel mineral insulating flexible fireproof cable, it is related to field of cables, including conductor, the interior separation layer being wrapped in outside conductor, it is wrapped in the mica insulation layer outside interior separation layer, the alibate outside package mica insulation layer, the insulating layer on the outside of package alibate, the mineral fireprotection layer for wrapping up insulating layer, the outer separation layer for wrapping up mineral fireprotection layer, the inhibiting tape for wrapping up outer separation layer and the LSOH anti-flaming oversheath for wrapping up inhibiting tape.Mineral fireprotection layer is set as the mineral intermixture material synthesized after mutually being mediated by magnesium hydroxide, kaolin, sodium metasilicate, coagulator, cracking resistance agent.The setting of interior separation layer plays the role of that mica insulation layer and conductor is isolated, so that will not be in direct contact between conductor and mica insulation layer, to prevent oxidation of the mica insulation layer to conductor caused by temperature change during cable long-time service, the minerals filling solidification of the present invention is than very fast, cable core will not deviate in production, handling process, ensure that the quality of product.
Description
Technical field
The present invention relates to cable, more particularly to a kind of novel mineral insulating flexible fireproof cable.
Background technology
In existing cable, common fire-resisting cable has been difficult to meet the needs of market, and 950 DEG C are unable to reach on refractory ability
The requirement of fire resisting 3 hours under flame, though and copper metal tubular type mineral insulated cable is met the requirements on refractory ability, its presence
It is cumbersome mounting and installation program, some shortcomings such as expensive.The invention for being CN202307228U for the displosure (bulletin) number is special
Profit discloses a kind of mineral insulating flexible fireproof cable comprising：The conductor being twisted by several cores, the every core
Include a conductor, one layer of mineral insulation is wrapped up outside the conductor, in one insulating protective layer of mineral insulation outer wrapping；
The bed of material is filled in one metal hydrate of conductor outer wrapping；The bed of material one layer of fire-retardant packet of outer wrapping is filled in the metal hydrate
Band；It is externally provided with a sheath in the fire-retardant band.The heat-insulated fire insulation that the mineral insulating flexible fireproof cable passes through fire-retardant band
The high-efficiency heat conduction performance of energy and the metal hydrate filling bed of material, to reach the requirement of the fire resisting three hours under 950 DEG C of flame.
But in the long-term use due to the mineral insulating flexible fireproof cable, conductor Long Term Contact minerals hold
Easily cause conductor indium, reduce the current-carrying capacity and service life of cable, reduces the stability of cable energization.
Invention content
It is an object of the invention to carry a kind of novel mineral insulating flexible fireproof cable, the mineral insulating flexible flame proof electrical
Conductor in cable is not easy to be aoxidized.
The present invention above-mentioned purpose technical scheme is that：
A kind of novel mineral insulating flexible fireproof cable, including：The conductor of several conductive materials, the mica being wrapped in outside conductor
Insulating layer, the mineral fireprotection layer for wrapping up mica insulation layer and the sheath for wrapping up mineral fireprotection layer, which is characterized in that the mica
The interior separation layer of package conductor is provided between insulating layer and conductor.
By using above-mentioned technical proposal, the setting of conductor realizes the function of cable conduction, the setting of mica insulation layer
Realize the insulation protection to conductor, the setting of mineral fireprotection layer enhance cable fire resistance and overall structure it is strong
Degree, the setting of sheath play the role of protecting cable.Those skilled in the art is it is found that mica insulation layer is mostly mineral insulation
Material, the setting of interior separation layer play the role of that mica insulation layer and conductor is isolated so that between conductor and mica insulation layer
Will not be in direct contact, to prevent cable be used for a long time during due to conductor temperature change caused by mica insulation layer to leading
The oxidation of body, protects conductor, increases the service life of cable, enhances the stability of current-carrying capacity of cable.
As an improvement of the present invention, the interior separation layer is set as polyester belt.
By using above-mentioned technical proposal, polyester belt is as common material in a kind of cable production process, certain
The raw material manufacturing cost of cable production is reduced in degree.
As an improvement of the present invention, the conductor is set as copper conductor.
As an improvement of the present invention, package mica insulation layer is provided between the mica insulation layer and mineral fireprotection layer
Erosion resistant coating.
By using above-mentioned technical proposal, the setting of erosion resistant coating plays the role of electrically isolating adjacent conductor, enhances
The stability of cable work, while also playing the effect of protection mica insulation layer.
As an improvement of the present invention, the aluminium shield of package mica insulation layer is provided between the mica insulation layer and erosion resistant coating
Layer.
By using above-mentioned technical proposal, alibate plays the protective effect to mica insulation layer when fire occurs, from
And the structural strength of cable is enhanced to a certain extent.
As an improvement of the present invention, the mineral fireprotection layer is mineral intermixture material.
By using above-mentioned technical proposal, original mineral fireprotection layer mostly uses greatly magnesium hydroxide（Aluminium hydroxide）Hydrate
It fills, because hardening time is too long, brings prodigious difficulty to construction, or even in electric cable transporting process Minerals fireprotection layer
Structure can change to influence the quality of cable, and the minerals filling solidification of the present invention is than very fast, conductor production,
It will not be deviated in handling process, ensure that the quality of product.
As an improvement of the present invention, the mineral intermixture is by magnesium hydroxide, kaolin, sodium metasilicate, coagulator, cracking resistance
Agent is mutually mediated and is made.
By using above-mentioned technical proposal, mutually pinched using magnesium hydroxide, kaolin, sodium metasilicate, coagulator, cracking resistance agent
It is that long-term experiment adjusts the preparation method obtained to close and make mineral intermixture, and faster, structure is more firm for setting rate, can be very well
Play the role of fire resisting in ground..
As an improvement of the present invention, the fire-retardant of package mineral fireprotection layer is provided between the sheath and mineral fireprotection layer
Band.
By using above-mentioned technical proposal, the setting of inhibiting tape plays the protective effect to cable so that cable is in fire
It is not easy to be burned out in the case of calamity, to be effectively guaranteed stability and the safety of cable work.
As an improvement of the present invention, be provided between the inhibiting tape and mineral fireprotection layer package mineral fireprotection layer it is outer every
Absciss layer.
By using above-mentioned technical proposal, those skilled in the art is it is found that mineral fire prevention filling is generally mixed by minerals
It closes slurry made of object to be filled, the setting of outer separation layer plays the effect for preventing mineral fireprotection layer excessive, to have
The stability for protecting the construction of cable of effect.
As an improvement of the present invention, the sheath is set as LSOH anti-flaming oversheath.
By using above-mentioned technical proposal, sets sheath to LSOH anti-flaming oversheath, enhance the fire-retardant of cable
The effect of performance, fire resistance, environmental-protecting performance and LP blades improves the safety of cable work.
In conclusion the invention has the advantages that：
One, performance is stablized, and service life is long, due to using polyester belt insulated conductor and mica insulation layer, playing protection conductor
Not oxidized effect, to improve the stability of current-carrying capacity during cable is electrified for a long time, extend cable uses the longevity
Life；
Two, fire resistance performance is high, due to doing protection and the minerals filling of the additional alibate that insulate using mica insulation layer, in electricity
When cable bears fire, under the protection of mica insulation layer and alibate, good insulating effect is played, and mineral fireprotection layer energy
Enough porcelain are without splitting, to improve the fire resistance of cable；
Three, product quality is high, due to being filled using minerals, filling solidification than very fast, conductor in production, handling process not
It can deviate, ensure that the quality of cable.
Description of the drawings
Fig. 1 is novel mineral insulating flexible fireproof cable sectional view；
Fig. 2 is novel mineral insulating flexible fireproof cable flow sheet.
In figure, 1, conductor；2, interior separation layer；3, mica insulation layer；4, alibate；5, erosion resistant coating；6, mineral fireprotection layer；7、
Outer separation layer；8, inhibiting tape；9, LSOH anti-flaming oversheath.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment one：
A kind of novel mineral insulating flexible fireproof cable, as shown in Figure 1, including conductor 1, the interior isolation being wrapped in outside conductor 1
Layer 2 is wrapped in the mica insulation layer 3 outside interior separation layer 2, the alibate 4 outside package mica insulation layer 3, wraps up the anti-of alibate 4
Rotten layer 5, the outer separation layer 7 for wrapping up mineral fireprotection layer 6, wraps up the fire-retardant of outer separation layer 7 at the mineral fireprotection layer 6 for wrapping up erosion resistant coating 5
LSOH anti-flaming oversheath 9 with 8 and package inhibiting tape 8.
Wherein, conductor 1 is set as copper conductor；Mica insulation layer 3 is set as mineral insulation material；Outer separation layer 7 and it is interior every
Absciss layer 2 is disposed as polyester belt.The setting of interior separation layer 2 can play the role of that copper conductor and mica insulation layer 3 is isolated, to
Prevent the effect of the oxidation of mica insulating layer 3 copper conductor in cable galvanization.
Each conductor 1 and interior separation layer 2, mica insulation layer 3, alibate 4 and the erosion resistant coating 5 for wrapping up conductor 1 form
A piece cable core includes several cable cores in each cable, is not defined herein to the quantity of cable core, a such as cable core, three
In the declared range of the present embodiment, this is illustrated for sentencing three cable cores for cable core, four cable cores, unrooted cable core etc..
Above-mentioned outer separation layer 7 is wrapped on the outside of three cable cores, and mineral fireprotection layer 6 is filled between cable core and outer separation layer 7, for reinforcing
The resistance to fire intensity of cable simultaneously plays supporting role to cable core.
Further, above-mentioned mineral fireprotection layer 6 is set as by magnesium hydroxide, kaolin, sodium metasilicate, coagulator, cracking resistance
The mineral intermixture material that agent synthesizes after mutually mediating.The filling solidification of the mineral intermixture is than very fast, in production, handling process
The cable core of middle cable will not deviate, and ensure that the quality of cable, while the fire prevention of cable installation process mineral will not be excessive, side
Just it constructs.
Embodiment two：
The production method of novel mineral insulating flexible fireproof cable, as shown in Fig. 2, this method includes following production stage：
Copper raw material is fabricated to copper conductor by S1, wire drawing and annealing by wire drawing and annealing operation；
Copper conductor is interacted the copper conductor to be formed as conductor 1 by S2, conductor strand；
S3, at least two layers polyester band is wound outside copper conductor, form interior separation layer 2；
S4, mica insulation layer 3 is wound outside interior separation layer 2；
S5, alibate 4 is squeezed out, alibate 4 is squeezed out outside mica insulation layer 3 by aluminum-extruding machine；
S6, extrusion plastic erosion resistant coating 5 squeeze out the erosion resistant coating 5 of color separation by the insulating exruded machine of cable plastics；
S7, insulating check carry out insulating check by insulating detection equipment to erosion resistant coating 5；
S8, cable are twisted, will wrap up erosion resistant coating using cable-former and to verify the cable core after qualification mutually twisted；
S9, filling mineral matter extrude minerals fireprotection layer by grouter for cable core；
S9-1, mineral material are mediated, and the magnesium hydroxide of preset ratio, kaolin, sodium metasilicate, coagulator, cracking resistance agent is mutual
Mediate the mineral material for forming pulpous state；
S9-2, mineral material filling bag is rolled in formation mineral fireprotection layer 6 on the outside of stranded cable core；
S10, wrapped polyester belt form outer separation layer 7 in the 6 at least one layer of polyester belt of outside winding package of mineral fireprotection layer；
S11, inhibiting tape 8 is wound outside outer separation layer 7；
S12, oversheath is squeezed out, oversheath is squeezed out by the insulating exruded machine of cable plastics, wherein oversheath is hindered using low smoke, zero halogen
Fire oversheath 9；
S13, high pressure detection carry out Hi-pot test by high-voltage detecting device to cable；
The qualified cable packaging of high pressure detection is put in storage by S14, packaging and storage.
By above said content it is found that the setting of interior separation layer 2 plays the role of that mica insulation layer 3 and conductor 1 is isolated,
So that will not be in direct contact between conductor 1 and mica insulation layer 3, to during preventing cable to be used for a long time due to conductor 1
The oxidation of 3 pairs of conductor 1 of mica insulation layer, protects conductor 1 not oxidized caused by temperature change, increases the use of cable
Service life.Since using mineral intermixture, as mineral fireprotection layer 6, the filling solidification of used mineral intermixture is than very fast, cable
Core will not deviate in production, handling process, ensure that the quality of product.When cable bears fire, minerals filling can
It porcelain and does not crack, plays good insulating effect, achieved the purpose that cable fire.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Claims (10)
1. a kind of novel mineral insulating flexible fireproof cable, which is characterized in that including：Conductor (1), the packet of several conductive materials
It is rolled in the outer mica insulation layer (3) of conductor (1), the mineral fireprotection layer (6) of package mica insulation layer (3) and package mineral fire prevention
Layer (6) sheath, which is characterized in that be provided between the mica insulation layer (3) and conductor (1) wrap up conductor (1) it is interior every
Absciss layer (2).
2. a kind of novel mineral insulating flexible fireproof cable according to claim 1, which is characterized in that the interior isolation
Layer (2) is set as polyester belt.
3. a kind of novel mineral insulating flexible fireproof cable according to claim 1, which is characterized in that the conductor
(1) it is set as copper conductor.
4. a kind of novel mineral insulating flexible fireproof cable according to claim 2, which is characterized in that the mica is exhausted
The erosion resistant coating (5) of package mica insulation layer (3) is provided between edge layer (3) and mineral fireprotection layer (6).
5. a kind of novel mineral insulating flexible fireproof cable according to claim 4, which is characterized in that the mica is exhausted
The alibate (4) of package mica insulation layer (3) is provided between edge layer (3) and erosion resistant coating (5).
6. a kind of novel mineral insulating flexible fireproof cable according to claim 1, which is characterized in that the mineral are anti-
Fire bed (6) is mineral intermixture material.
7. a kind of novel mineral insulating flexible fireproof cable according to claim 6, which is characterized in that the mineral are mixed
Object is closed mutually to be mediated and be made by magnesium hydroxide, kaolin, sodium metasilicate, coagulator, cracking resistance agent.
8. a kind of novel mineral insulating flexible fireproof cable according to claim 7, which is characterized in that the sheath with
The inhibiting tape (8) of package mineral fireprotection layer (6) is provided between mineral fireprotection layer (6).
9. a kind of novel mineral insulating flexible fireproof cable according to claim 8, which is characterized in that the inhibiting tape
(8) the outer separation layer (7) of package mineral fireprotection layer (6) is provided between mineral fireprotection layer (6).
10. a kind of novel mineral insulating flexible fireproof cable according to claim 1, which is characterized in that the sheath
It is set as LSOH anti-flaming oversheath (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810231360.0A CN108538480A (en) | 2018-03-20 | 2018-03-20 | A kind of novel mineral insulating flexible fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810231360.0A CN108538480A (en) | 2018-03-20 | 2018-03-20 | A kind of novel mineral insulating flexible fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108538480A true CN108538480A (en) | 2018-09-14 |
Family
ID=63484367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810231360.0A Pending CN108538480A (en) | 2018-03-20 | 2018-03-20 | A kind of novel mineral insulating flexible fireproof cable |
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| Country | Link |
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| CN (1) | CN108538480A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627607A (en) * | 2019-02-27 | 2020-09-04 | 云南多宝电缆集团股份有限公司 | Halogen-free flame-retardant low-voltage cable |
| CN111724945A (en) * | 2020-06-23 | 2020-09-29 | 浦大电缆集团有限公司 | Manufacturing method of environment-friendly insulated cable |
| CN115910456A (en) * | 2022-11-07 | 2023-04-04 | 河南华东电缆股份有限公司 | High-temperature-resistant fireproof cable and preparation method thereof |
| CN117809899A (en) * | 2023-12-26 | 2024-04-02 | 建业电缆集团有限公司 | Mineral insulation flame-retardant fire-resistant cable |
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| CN101037583A (en) * | 2007-03-29 | 2007-09-19 | 上海大学 | Preparation method of cable fire-proof sealing filling |
| CN103102134A (en) * | 2013-02-20 | 2013-05-15 | 上海宏胜电线电缆有限公司 | Fireproof and flame retardant mineral compound filling material and cable containing the same |
| CN106098224A (en) * | 2016-08-30 | 2016-11-09 | 飞洲集团有限公司 | Aluminium sheath extrudes mineral insulated cable continuously |
| CN206401087U (en) * | 2016-12-06 | 2017-08-11 | 河南通达电缆股份有限公司 | A kind of new embossing stainless steel sheath fireproof control cable |
| CN206432051U (en) * | 2017-02-09 | 2017-08-22 | 宝上电缆有限公司 | A kind of fireproof cable with split-phase alibate |
| CN206758171U (en) * | 2017-03-30 | 2017-12-15 | 浙江中大元通特种电缆有限公司 | A kind of flexible mineral insulation fireproof power cable |
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2018
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037583A (en) * | 2007-03-29 | 2007-09-19 | 上海大学 | Preparation method of cable fire-proof sealing filling |
| CN103102134A (en) * | 2013-02-20 | 2013-05-15 | 上海宏胜电线电缆有限公司 | Fireproof and flame retardant mineral compound filling material and cable containing the same |
| CN106098224A (en) * | 2016-08-30 | 2016-11-09 | 飞洲集团有限公司 | Aluminium sheath extrudes mineral insulated cable continuously |
| CN206401087U (en) * | 2016-12-06 | 2017-08-11 | 河南通达电缆股份有限公司 | A kind of new embossing stainless steel sheath fireproof control cable |
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| CN206758171U (en) * | 2017-03-30 | 2017-12-15 | 浙江中大元通特种电缆有限公司 | A kind of flexible mineral insulation fireproof power cable |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627607A (en) * | 2019-02-27 | 2020-09-04 | 云南多宝电缆集团股份有限公司 | Halogen-free flame-retardant low-voltage cable |
| CN111724945A (en) * | 2020-06-23 | 2020-09-29 | 浦大电缆集团有限公司 | Manufacturing method of environment-friendly insulated cable |
| CN115910456A (en) * | 2022-11-07 | 2023-04-04 | 河南华东电缆股份有限公司 | High-temperature-resistant fireproof cable and preparation method thereof |
| CN115910456B (en) * | 2022-11-07 | 2023-11-14 | 河南华东电缆股份有限公司 | High-temperature-resistant fireproof cable and preparation method thereof |
| CN117809899A (en) * | 2023-12-26 | 2024-04-02 | 建业电缆集团有限公司 | Mineral insulation flame-retardant fire-resistant cable |
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Application publication date: 20180914 |