CN109949984A - Environment-friendlyweather-proof weather-proof is from temperature sensitive type fireproof cable and preparation method thereof - Google Patents
Environment-friendlyweather-proof weather-proof is from temperature sensitive type fireproof cable and preparation method thereof Download PDFInfo
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- CN109949984A CN109949984A CN201910193960.7A CN201910193960A CN109949984A CN 109949984 A CN109949984 A CN 109949984A CN 201910193960 A CN201910193960 A CN 201910193960A CN 109949984 A CN109949984 A CN 109949984A
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- proof
- band
- halogen
- oversheath
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The present invention relates to a kind of environment-friendlyweather-proof weather-proofs from temperature sensitive type fireproof cable, solve the deficiencies in the prior art, technical solution are as follows: including core and interior Halogen band, aluminium sheath, fire-proof mud separation layer, middle Halogen band, the chain armor of steel band, outer Halogen band, oversheath, the outside packet of the core is equipped with interior Halogen band, the outside packet of interior Halogen band is equipped with aluminium sheath, fire-proof mud separation layer is extruded on the outside of aluminium sheath, the outside packet of fire-proof mud separation layer is equipped with middle Halogen band, the outside packet of middle Halogen band is equipped with the chain armor of steel band, the outside packet of the chain armor of steel band is equipped with outer Halogen band, the outside packet of outer Halogen band is equipped with oversheath, the oversheath is the oversheath from heat discoloration.
Description
Technical field
The present invention relates to a kind of cables, and in particular to a kind of environment-friendlyweather-proof weather-proof is from temperature sensitive type fireproof cable and preparation method thereof.
Background technique
The insulating layer outside country's high request fireproof cable general conductor uses multilayer (4-6 layers) Mica tape at present, and one
Aspect multilayer is wrapped to be easy to cause band out-of-flatness and needs how wrapped process repeatedly wrapped increase production time and cost, in addition
Mica tape is easy dampness and needs to be dried before next process, and increases production time and production cost.For solve with
Upper problem, fireproof cable of the present invention be on copper conductor first be disposably overlapped wrapped two stratus master tape, and herein outside synchronize it is crowded
Packet ceramic fire retardant polyolefin Insulation Material protects mica tape not make moist, does not need at drying as compound inslation fireprotection layer
Reason and insulation and reduce production time and production cost at out-of-flatness bring defect.Pass through aluminium strip after single insulated wire cores band
Longitudinal wrap is welded into a whole to play waterproof action, and extrudes fire-proof mud outside as composite fire thermal insulation layer, improves cable
Heat-insulated and flameproof effect.Due to fire-proof mud squeeze out after be pressurized it is easily-deformable cause fireprotection layer uneven, outside increase the chain armour of steel band
Dress layer bears to squeeze external force protection fire lagging to improve.In addition traditional fireproof cable can not work as front from appearance visual identification
The operating load situation of cable, therefore can not provide the effect of user's early warning in use only normal use and burns two kinds of forms
In the presence of.
Former fireproof cable has following shortcoming: insulating multilayer is wrapped more, and operation break-down production, insulation out-of-flatness is also easy to produce scarce
It falls into；Insulating layer mica tape moisture-sensitive needs drying and processing, wastes time and production cost；The extruding of fire-proof mud separation layer is withstood forces
Difference.
Summary of the invention
It is wrapped more that there are insulating multilayers it is an object of the invention to solving the above-mentioned prior art, and operation break-down production, insulation is not
It is smooth to be also easy to produce defect；Insulating layer mica tape moisture-sensitive needs drying and processing, wastes time and production cost；Fire-proof mud separation layer
Extruding endurance difference problem, provide a kind of environment-friendlyweather-proof weather-proof from temperature sensitive type fireproof cable and preparation method thereof.
The technical solution adopted by the present invention to solve the technical problems is: a kind of environment-friendlyweather-proof weather-proof from temperature sensitive type fireproof cable,
Including core, interior Halogen band, aluminium sheath, fire-proof mud separation layer, middle Halogen band, the chain armor of steel band, outer Halogen band
And oversheath, the outside packet of the core are equipped with interior Halogen band, the outside packet of interior Halogen band is equipped with aluminium sheath, aluminium sheath
Outside is extruded with fire-proof mud separation layer, and the outside packet of fire-proof mud separation layer is equipped with middle Halogen band, and the outside of middle Halogen band is wrapped
Equipped with the chain armor of steel band, the outside packet of the chain armor of steel band is equipped with outer Halogen band, and the outside packet of outer Halogen band is set
There is oversheath, the oversheath is the oversheath from heat discoloration.
In the present invention, wrapped two stratus master tape extrudes ceramic fire retardant polyolefin Insulation Material as compound inslation outside copper conductor
Fireprotection layer；Use the fire-proof mud of fumeless and non-combustible features at a temperature of 500 DEG C~3000 DEG C DEG C outside aluminium sheath, it is hard by Low fire ceramic shape rapidly
Hard, complete shell, the hard shell after burning play a very good protection to the metal and insulating layer of the inside, ensure
Route in case of fire unimpeded；It will not disintegrate because melting or burning, will not more propagate kindling material.Increase outside fire-proof mud
Add the chain armor of steel band to improve and bear to squeeze external force protection fire lagging.It is black using being added in outermost extrude sheath layer
Color sensation warm colour master batch halogen-free and low-smoke flame-retardant polyolefin material；In the environment of direct sunlight, it can be used and black temperature-sensitive color masterbatch is added
Grain and high-quality UV resistance halogen-free and low-smoke flame-retardant polyolefin material guarantee that cable has excellent low-smoke non-halogen flame-retardant, prevents from early warning
The performances fireprotection layer separation sleeves such as ultraviolet light is weather-proof: using using the above structure, when cable is under flame environment, can it is heat-insulated rapidly,
Conduction that is oxygen barrier, slowing down heat, effective protection core normal power supply.Add in being protected outside thermoplastic halogen-free and low-smoke flame-retardant polyolefin material
Enter black temperature-sensitive Masterbatch and ultraviolet-resistant absorbent, it, can be because of cable temperature caused by overload when this cable is more than safe current value
Degree increases, and insulating layer becomes Transparent color by black when temperature is more than 50 DEG C, and causing color change to play by sense temperature can
Observable safe early warning effect.
The present invention solves mica tape and will not make moist, and does not need drying and processing and insulation out-of-flatness bring defect and reduction
Production time and production cost, increase steel band chain armor to improve flameproof effect, cable according to GB/T 19216.21 into
Row fire resistance test is 950~1000 DEG C for fiery temperature, and burning time is 300min(public security ministerial standard highest standard GA306.2-
2007 I A grades only needs 90min), the voltage rating of energization cable, none fuse or breaker disconnect；Conductor is continuous, i.e.,
Light bulb does not extinguish, and can pass through the CWZ Fire Test of BS6387 standard.And in oversheath using be added black temperature-sensitive Masterbatch and
The antiultraviolet of ultraviolet-resistant absorbent from temperature-sensitive low-smoke and halogen-free flame retardant polyolefin jacket material, make cable have from temperature-sensitive early warning and
Weather-proof purpose guarantees pre- from heat discoloration when normal operation and generation of the cable in outdoor adverse circumstances overload overtemperature
It is alert.
Preferably, the oversheath is that joined black temperature-sensitive Masterbatch and ultraviolet-resistant absorbent, it is more than in temperature
Transparent color is become by black at 50 DEG C, causes color change to play the role of the outer of visible safe early warning by sense temperature
Sheath.
Preferably, the core includes copper conductor, the outside packet of the copper conductor is equipped with mica tape, the mica tape
Outside packet is equipped with core insulating layer.
Preferably, the core insulating layer is ceramic fire retardant polyolefin insulated waterproof layer.
Preferably, the core quantity is greater than 2, all cores are set by interior Halogen band packet, empty in interior Halogen band
Gasket for packing is filled at gap.
Preferably, the oversheath is halogen-free and low-smoke flame-retardant polyolefin oversheath.
A kind of environment-friendlyweather-proof weather-proof is from temperature sensitive type fireproof cable production method, comprising the following steps:
Step 1 presses circular copper conductors, and wrapped two stratus master tape extrudes ceramic fire retardant polyolefin Insulation Material outside copper conductor
As compound inslation fireprotection layer；
Step 2, gap is filled using mineral rope and is integrally tied with the wrapped formation multicore of Halogen band when multicore insulated wire cores stranding
Structure, when single insulated wire cores stranding, are wrapped with Halogen band；It is welded to be formed with aluminium strip longitudinal wrap outside core and plays waterproof action aluminium
Sheath；
Step 3 increases the chain armor of steel band for improving and bearing to squeeze external force protection fire prevention isolation outside fire-proof mud；
Step 4, in outermost extrude sheath layer using addition black temperature-sensitive Masterbatch halogen-free and low-smoke flame-retardant polyolefin oversheath.
Substantial effect of the invention is: the process with effective solution cable insulation of the innovation and creation is simple
Change, reduce production time and cost, and in waterproof, prevent fires, greatly improve its respective performances in terms of the power that is squeezed.Also by extruding
The halogen-free and low-smoke flame-retardant polyolefin material of black temperature-sensitive Masterbatch and ultraviolet-resistant absorbent is added, when temperature is more than 50 DEG C
Transparent color is become by black, surpasses safe early warning effect.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
In figure: 1, copper conductor；2, mica tape；3, core insulating layer；4, interior Halogen band；5, aluminium sheath；6, extrude fire-proof mud every
Absciss layer；7, middle Halogen band；8, the chain armor of steel band；9 outer Halogen bands；10, oversheath.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention will be further explained in detail.
Embodiment 1:
A kind of environment-friendlyweather-proof weather-proof is from temperature sensitive type fireproof cable (referring to attached drawing 1), including core, interior Halogen band 4, aluminium sheath 5, fire prevention
The outside packet of mud separation layer 6, middle Halogen band 7, the chain armor 8 of steel band, outer Halogen band 9, oversheath 10, the core is set
There is interior Halogen band, the outside packet of interior Halogen band is equipped with aluminium sheath, is extruded with fire-proof mud separation layer on the outside of aluminium sheath, prevents fires
The outside packet of mud separation layer is equipped with middle Halogen band, and the outside packet of middle Halogen band is equipped with the chain armor of steel band, and steel band is chain
The outside packet of armor is equipped with outer Halogen band, and the outside packet of outer Halogen band is equipped with oversheath, and the oversheath is from temperature-sensitive
The oversheath of discoloration.The oversheath is that joined black temperature-sensitive Masterbatch and ultraviolet-resistant absorbent, is more than 50 DEG C in temperature
When Transparent color become by black, cause color change to play the role of the outer shield of visible safe early warning by sense temperature
Set.The core includes copper conductor 1, and the outside packet of the copper conductor is equipped with mica tape 2, and the outside packet of the mica tape is equipped with line
Core insulation layer 3.The core insulating layer is ceramic fire retardant polyolefin insulated waterproof layer.The oversheath is LSOH anti-flaming
Polyolefin oversheath.The thickness for extruding fire-proof mud separation layer is greater than or equal to the thickness of the chain armor of the steel band, institute
The thickness for stating oversheath is at least 1.5 times of thickness of fire-proof mud separation layer.
In the present embodiment, wrapped two stratus master tape extrudes ceramic fire retardant polyolefin Insulation Material as compound exhausted outside copper conductor
Edge fireprotection layer；Use the fire-proof mud of fumeless and non-combustible features at a temperature of 500 DEG C~3000 DEG C DEG C outside aluminium sheath, rapidly by Low fire ceramic shape
Hard, complete shell, the hard shell after burning play a very good protection to the metal and insulating layer of the inside, protect
Hinder route in case of fire unimpeded；It will not disintegrate because melting or burning, will not more propagate kindling material.Outside fire-proof mud
Increase the chain armor of steel band to improve and bear to squeeze external force protection fire lagging.In outermost extrude sheath layer using addition
Black temperature-sensitive Masterbatch halogen-free and low-smoke flame-retardant polyolefin material；In the environment of direct sunlight, it can be used and black temperature-sensitive color is added
Master batch and high-quality UV resistance halogen-free and low-smoke flame-retardant polyolefin material guarantee that cable has excellent low-smoke non-halogen flame-retardant, from early warning
The performances fireprotection layer separation sleeve such as anti-ultraviolet and weather-resistance: using using the above structure, when cable is under flame environment, can rapidly every
Conduction that is hot, oxygen barrier, slowing down heat, effective protection core normal power supply.It is protected outside thermoplastic halogen-free and low-smoke flame-retardant polyolefin material
Middle addition black temperature-sensitive Masterbatch and ultraviolet-resistant absorbent can be because of lines caused by overload when this cable is more than safe current value
Cable temperature increases, and insulating layer becomes Transparent color by black when temperature is more than 50 DEG C, causes color change to rise by sense temperature
It is acted on to visible safe early warning.
The present invention solves mica tape and will not make moist, and does not need drying and processing and insulation out-of-flatness bring defect and reduction
Production time and production cost, increase steel band chain armor to improve flameproof effect, cable according to GB/T 19216.21 into
Row fire resistance test is 950~1000 DEG C for fiery temperature, and burning time is 300min(public security ministerial standard highest standard GA306.2-
2007 I A grades only needs 90min), the voltage rating of energization cable, none fuse or breaker disconnect；Conductor is continuous, i.e.,
Light bulb does not extinguish, and can pass through the CWZ Fire Test of BS6387 standard.And in oversheath using be added black temperature-sensitive Masterbatch and
The antiultraviolet of ultraviolet-resistant absorbent from temperature-sensitive low-smoke and halogen-free flame retardant polyolefin jacket material, make cable have from temperature-sensitive early warning and
Weather-proof purpose guarantees pre- from heat discoloration when normal operation and generation of the cable in outdoor adverse circumstances overload overtemperature
It is alert.
Embodiment 2:
The present embodiment is the environment-friendlyweather-proof weather-proof of multicore insulated wire cores from temperature sensitive type fireproof cable, substantially same as Example 1, difference
It is in in the present embodiment, the core quantity is greater than 2, and in the present embodiment, core quantity is 4, and all cores are by interior nothing
Halogen band packet is set, and gasket for packing is filled at interior Halogen band internal pore.
Embodiment 3:
In the present embodiment, added Masterbatch parameter according to environment-friendlyweather-proof weather-proof from temperature sensitive type fireproof cable inherent parameters by manually carrying out
It adjusts, so that insulating layer becomes Transparent color by black when temperature is more than the artificial set temperature such as 60 DEG C or 55 DEG C, passes through perception
Temperature causes color change to play the role of visible safe early warning.
A kind of environment-friendlyweather-proof weather-proof is from temperature sensitive type fireproof cable production method, for making environment-friendlyweather-proof weather-proof as described above from temperature-sensitive
Type fireproof cable, comprising the following steps:
Step 1 presses circular copper conductors, and wrapped two stratus master tape extrudes ceramic fire retardant polyolefin Insulation Material outside copper conductor
As compound inslation fireprotection layer；
Step 2, gap is filled using mineral rope and is integrally tied with the wrapped formation multicore of Halogen band when multicore insulated wire cores stranding
Structure, when single insulated wire cores stranding, are wrapped with Halogen band；It is welded to be formed with aluminium strip longitudinal wrap outside core and plays waterproof action aluminium
Sheath；
Step 3 increases the chain armor of steel band for improving and bearing to squeeze external force protection fire prevention isolation outside fire-proof mud；
Step 4, in outermost extrude sheath layer using addition black temperature-sensitive Masterbatch halogen-free and low-smoke flame-retardant polyolefin oversheath.
The present embodiment, two stratus master tapes extrude ceramic fire retardant polyolefin Insulation Material as compound inslation fireprotection layer and reduce work
Sequence, improving insulating layer quality reduces risk, reduces production time and production cost.Color change is caused to rise by sense temperature
It is acted on to visible safe early warning.It can bear bigger external force to squeeze, guarantee cable normal operation and fire prevention, waterproof effect
Good, all material uses ep-type material, reaches environmentally friendly, weather-proof.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (7)
1. a kind of environment-friendlyweather-proof weather-proof is from temperature sensitive type fireproof cable, it is characterised in that: including core, interior Halogen band, aluminium sheath, fire prevention
Mud separation layer, middle Halogen band, the chain armor of steel band, outer Halogen band and oversheath, the outside packet of the core are equipped with interior
The outside packet of Halogen band, interior Halogen band is equipped with aluminium sheath, is extruded with fire-proof mud separation layer on the outside of aluminium sheath, fire-proof mud every
The outside packet of absciss layer is equipped with middle Halogen band, and the outside packet of middle Halogen band is equipped with the chain armor of steel band, the chain armouring of steel band
The outside packet of layer is equipped with outer Halogen band, and the outside packet of outer Halogen band is equipped with oversheath, and the oversheath is from heat discoloration
Oversheath.
2. environment-friendlyweather-proof weather-proof according to claim 1 is from temperature sensitive type fireproof cable, it is characterised in that: the oversheath is to be added
Black temperature-sensitive Masterbatch and ultraviolet-resistant absorbent, when temperature is more than 50 DEG C become Transparent color by black, pass through perception temperature
Spend the oversheath for causing color change to play the role of visible safe early warning.
3. environment-friendlyweather-proof weather-proof according to claim 1 is from temperature sensitive type fireproof cable, it is characterised in that: the core includes that copper is led
Body, the outside packet of the copper conductor are equipped with mica tape, and the outside packet of the mica tape is equipped with core insulating layer.
4. environment-friendlyweather-proof weather-proof according to claim 3 is from temperature sensitive type fireproof cable, it is characterised in that: the core insulating layer is
Ceramic fire retardant polyolefin insulated waterproof layer.
5. environment-friendlyweather-proof weather-proof according to claim 3 or 4 is from temperature sensitive type fireproof cable, it is characterised in that: the core quantity
Greater than 2, all cores are set by interior Halogen band packet, and gasket for packing is filled at interior Halogen band internal pore.
6. environment-friendlyweather-proof weather-proof according to claim 1 is from temperature sensitive type fireproof cable, it is characterised in that: the oversheath is Halogen
Low-smoke flame-proof polyolefin oversheath.
7. a kind of environment-friendlyweather-proof weather-proof is from temperature sensitive type fireproof cable production method, it is characterised in that: the following steps are included:
Step 1 presses circular copper conductors, and wrapped two stratus master tape extrudes ceramic fire retardant polyolefin Insulation Material outside copper conductor
As compound inslation fireprotection layer；
Step 2, gap is filled using mineral rope and is integrally tied with the wrapped formation multicore of Halogen band when multicore insulated wire cores stranding
Structure, when single insulated wire cores stranding, are wrapped with Halogen band；It is welded to be formed with aluminium strip longitudinal wrap outside core and plays waterproof action aluminium
Sheath；
Step 3 increases the chain armor of steel band for improving and bearing to squeeze external force protection fire prevention isolation outside fire-proof mud；
Step 4, in outermost extrude sheath layer using addition black temperature-sensitive Masterbatch halogen-free and low-smoke flame-retardant polyolefin oversheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193960.7A CN109949984A (en) | 2019-03-14 | 2019-03-14 | Environment-friendlyweather-proof weather-proof is from temperature sensitive type fireproof cable and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193960.7A CN109949984A (en) | 2019-03-14 | 2019-03-14 | Environment-friendlyweather-proof weather-proof is from temperature sensitive type fireproof cable and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109949984A true CN109949984A (en) | 2019-06-28 |
Family
ID=67009931
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910193960.7A Pending CN109949984A (en) | 2019-03-14 | 2019-03-14 | Environment-friendlyweather-proof weather-proof is from temperature sensitive type fireproof cable and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752056A (en) * | 2019-09-10 | 2020-02-04 | 东莞市瀛通电线有限公司 | Temperature sensing color-changing braided cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206849578U (en) * | 2017-05-23 | 2018-01-05 | 安徽太平洋电缆股份有限公司 | Fire resistant flexible type railway signal cable |
| CN208489041U (en) * | 2018-05-28 | 2019-02-12 | 安徽徽宁电器仪表集团有限公司 | A kind of medium voltage converter cable |
| CN109390088A (en) * | 2018-12-12 | 2019-02-26 | 安徽蒙特尔电缆集团有限公司 | A kind of insulated fireproof power cable |
| CN208580613U (en) * | 2018-04-12 | 2019-03-05 | 浙江万马股份有限公司 | Autonomous early warning domestic power supply line |
-
2019
- 2019-03-14 CN CN201910193960.7A patent/CN109949984A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206849578U (en) * | 2017-05-23 | 2018-01-05 | 安徽太平洋电缆股份有限公司 | Fire resistant flexible type railway signal cable |
| CN208580613U (en) * | 2018-04-12 | 2019-03-05 | 浙江万马股份有限公司 | Autonomous early warning domestic power supply line |
| CN208489041U (en) * | 2018-05-28 | 2019-02-12 | 安徽徽宁电器仪表集团有限公司 | A kind of medium voltage converter cable |
| CN109390088A (en) * | 2018-12-12 | 2019-02-26 | 安徽蒙特尔电缆集团有限公司 | A kind of insulated fireproof power cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752056A (en) * | 2019-09-10 | 2020-02-04 | 东莞市瀛通电线有限公司 | Temperature sensing color-changing braided cable |
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Application publication date: 20190628 |
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