CN204926838U - Low smoke and zero halogen polyolefin control cable - Google Patents
Low smoke and zero halogen polyolefin control cable Download PDFInfo
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- CN204926838U CN204926838U CN201520524348.0U CN201520524348U CN204926838U CN 204926838 U CN204926838 U CN 204926838U CN 201520524348 U CN201520524348 U CN 201520524348U CN 204926838 U CN204926838 U CN 204926838U
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Abstract
The utility model discloses a low smoke and zero halogen polyolefin control cable, include: the cable core, around covering, shielding layer, restrictive coating, armor, the cable core is formed by many conductor stranding, and the conductor of wire adopts the copper wire transposition to form, and the insulating layer adopts the crosslinked polyethylene material to make, and cable core outside cladding is in proper order adopted tinned copper wire and aramid fiber to weave and is formed around covering, shielding layer, restrictive coating, armor, shielding layer, and the restrictive coating adopts low smoke and zero halogen flame retardant polyolefin material to make, and the armor adopts the steel band to indulge the package and forms. The utility model provides a low smoke and zero halogen polyolefin control cable, structural design is reasonable, shield effectual, the power transmission stable performance to the further protection of cables structure of armor externally in addition, has high temperature resistant fire behaviour, and low smoke and zero halogen during the burning is pollution -free to the environment.
Description
Technical field
The utility model relates to field of cable technology, particularly relates to a kind of low-smoke halogen-free polyolefin control cables.
Background technology
Along with the development of advancing by leaps and bounds of power industry, the demand of cable just increases progressively with the annual growth of 10 ~ 15%.Due to the difference of environment for use, comprise power cable, control cables, telecommunication cable, optical cable etc.Along with electrified development, the control cables with signal transfer functions uses more and more extensive, is therefore also rising to the safety in utilization of control cables, the requirement of the feature of environmental protection.Under normal circumstances, existing cable can meet the demands, if but cable be used in adverse circumstances and require in higher environment, then can not meet instructions for use to cable security.
Utility model content
For solving the technical problem existed in background technology, the utility model proposes a kind of low-smoke halogen-free polyolefin control cables, shield effectiveness is good, and signal transmission performance is stablized, and has heat-resistant fireproof performance, low smoke and zero halogen during burning, environmentally safe.
A kind of low-smoke halogen-free polyolefin control cables that the utility model proposes, comprising: cable core, lapping layer, screen, restrictive coating, armour;
Cable core forms by multiple conducting wires is stranded, and every root wire comprises the conductor that is positioned at middle part and is coated on the insulating barrier of conductor outside, and conductor adopts that copper wire is stranded to be formed, and insulating barrier adopts cross-linking polyethylene materials to make;
Lapping layer is coated on cable core outside, screen is coated on lapping layer outside, screen adopts tinned copper wire and aramid fiber braiding to form, restrictive coating is coated on screen outside, restrictive coating adopts low-smoke halide-free fireproof composite polyolefine material to make, armour is coated on restrictive coating outside, and armour adopts steel band to indulge bag and forms.
Preferably, cable core internal clearance is filled with packing material.
Preferably, packing material adopts glass fibre.
Preferably, the percentage of braiding coverage of screen is that a, a are greater than 80%.
Preferably, in screen, the sectional area of tinned copper wire is greater than 50% of screen total sectional area.
Preferably, cable core comprises three to five wires.
Preferably, cable core inside conductor number is n, and conductor diameter is b, and the thickness of armour is D, n (1-a) < D/b < na.
In the utility model, the low-smoke halogen-free polyolefin control cables proposed, cable core forms by multiple conducting wires is stranded, the conductor of wire adopts that copper wire is stranded to be formed, insulating barrier adopts cross-linking polyethylene materials to make, and cable core outside is coated lapping layer, screen, restrictive coating, armour successively, and screen adopts tinned copper wire and aramid fiber braiding to form, restrictive coating adopts low-smoke halide-free fireproof composite polyolefine material to make, and armour adopts steel band to indulge bag and forms.By the low-smoke halogen-free polyolefin control cables of above-mentioned optimal design, reasonable in design, shield effectiveness is good; electric power transfer stable performance, and armour protects the construction of cable further from outside, in addition; there is heat-resistant fireproof performance, low smoke and zero halogen during burning, environmentally safe.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of low-smoke halogen-free polyolefin control cables that the utility model proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of low-smoke halogen-free polyolefin control cables that the utility model proposes.
With reference to Fig. 1, a kind of low-smoke halogen-free polyolefin control cables that the utility model proposes, comprising: cable core, lapping layer 2, screen 3, restrictive coating 4, armour 5, packing material 6;
Cable core comprises three wires 1, and every root wire 1 comprises the conductor 11 being positioned at middle part and the insulating barrier 12 being coated on conductor 11 outside, and conductor 11 adopts that copper wire is stranded to be formed, and the diameter of conductor 11 is 1mm, and insulating barrier 12 adopts cross-linking polyethylene materials to make;
Three wires 1 are twisted into cable core, packing material 6 is filled in cable core gap, it adopts glass fibre, ensure cable core rounding on the one hand, improve fireproofing of cable fire resistance on the other hand, lapping layer 2 is coated on cable core outside, three wires 1 are strapped in together by lapping layer 2 tightly, ensure that wire in use not easily rocks, it is outside that screen 3 is coated on lapping layer 2, screen 3 adopts tinned copper wire and aramid fiber braiding to form, its percentage of braiding coverage is a, a > 80%, and the sectional area of tinned copper wire is greater than 50% of the total sectional area of screen 3 in screen 3, it is outside that restrictive coating 4 is coated on screen 3, restrictive coating 4 adopts low-smoke halide-free fireproof composite polyolefine material to make, it is outside that armour 5 is coated on restrictive coating 4, armour 5 adopts steel band to indulge bag and forms.
In specific design process; cable core inside conductor number is n; conductor diameter is b; the thickness of armour is D; n (1-a) < D/b < na; in the present embodiment, 0.6mm < D < 2.4mm, makes the thickness of armour in the reasonable scope, and ensures the protection of armour to inner cable core.
In the present embodiment, the low-smoke halogen-free polyolefin control cables proposed, cable core forms by multiple conducting wires is stranded, the conductor of wire adopts that copper wire is stranded to be formed, insulating barrier adopts cross-linking polyethylene materials to make, and cable core outside is coated lapping layer, screen, restrictive coating, armour successively, and screen adopts tinned copper wire and aramid fiber braiding to form, restrictive coating adopts low-smoke halide-free fireproof composite polyolefine material to make, and armour adopts steel band to indulge bag and forms.By the low-smoke halogen-free polyolefin control cables of above-mentioned optimal design, reasonable in design, shield effectiveness is good; electric power transfer stable performance, and armour protects the construction of cable further from outside, in addition; there is heat-resistant fireproof performance, low smoke and zero halogen during burning, environmentally safe.
In a specific embodiment, the percentage of braiding coverage of screen 3 is greater than 80%, in screen 3, the sectional area of tinned copper wire is greater than 50% of the total sectional area of screen 3, the density of tinned copper wire ensures the shield effectiveness of screen, simultaneously the adding of aramid fiber, improve cable tensile property, and improve flexible.
Copper metal in screen and the ferrous metal in armour form complementation on shield effectiveness, improve the anti-jamming effectiveness of control cables further, ensure that control signal transmission is stable.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection range of the present utility model.
Claims (7)
1. a low-smoke halogen-free polyolefin control cables, is characterized in that, comprising: cable core, lapping layer (2), screen (3), restrictive coating (4), armour (5);
Cable core forms by multiple conducting wires (1) is stranded, every root wire (1) comprises the conductor (11) being positioned at middle part and the insulating barrier (12) being coated on conductor (11) outside, conductor (11) adopts that copper wire is stranded forms, and insulating barrier (12) adopts cross-linking polyethylene materials to make;
Lapping layer (2) is coated on cable core outside, it is outside that screen (3) is coated on lapping layer (2), screen (3) adopts tinned copper wire and aramid fiber braiding to form, it is outside that restrictive coating (4) is coated on screen (3), restrictive coating (4) adopts low-smoke halide-free fireproof composite polyolefine material to make, it is outside that armour (5) is coated on restrictive coating (4), and armour (5) adopts steel band to indulge bag and forms.
2. low-smoke halogen-free polyolefin control cables according to claim 1, is characterized in that, cable core internal clearance is filled with packing material (6).
3. low-smoke halogen-free polyolefin control cables according to claim 2, is characterized in that, packing material (6) adopts glass fibre.
4. low-smoke halogen-free polyolefin control cables according to claim 1, is characterized in that, the percentage of braiding coverage of screen (3) is a, a > 80%.
5. low-smoke halogen-free polyolefin control cables according to claim 4, is characterized in that, in screen (3), the sectional area of tinned copper wire is greater than 50% of the total sectional area of screen (3).
6. low-smoke halogen-free polyolefin control cables according to claim 4, is characterized in that, cable core comprises three to five wires (1).
7. low-smoke halogen-free polyolefin control cables according to claim 6, is characterized in that, cable core inside conductor number is n, and conductor diameter is b, and the thickness of armour is D, n (1-a) < D/b < na.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524348.0U CN204926838U (en) | 2015-07-16 | 2015-07-16 | Low smoke and zero halogen polyolefin control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524348.0U CN204926838U (en) | 2015-07-16 | 2015-07-16 | Low smoke and zero halogen polyolefin control cable |
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| Publication Number | Publication Date |
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| CN204926838U true CN204926838U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520524348.0U Active CN204926838U (en) | 2015-07-16 | 2015-07-16 | Low smoke and zero halogen polyolefin control cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113257473A (en) * | 2021-05-12 | 2021-08-13 | 安徽电缆股份有限公司 | Low-smoke halogen-free motor train unit cable |
| CN113314274A (en) * | 2021-04-20 | 2021-08-27 | 临沂启阳电缆有限公司 | Method for manufacturing polyvinyl chloride insulated non-sheath cable |
| CN116564594A (en) * | 2023-06-28 | 2023-08-08 | 江苏锡缆特种线缆有限公司 | Low-smoke halogen-free polyolefin coated flame-retardant cable and coating processing technology thereof |
-
2015
- 2015-07-16 CN CN201520524348.0U patent/CN204926838U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314274A (en) * | 2021-04-20 | 2021-08-27 | 临沂启阳电缆有限公司 | Method for manufacturing polyvinyl chloride insulated non-sheath cable |
| CN113257473A (en) * | 2021-05-12 | 2021-08-13 | 安徽电缆股份有限公司 | Low-smoke halogen-free motor train unit cable |
| CN116564594A (en) * | 2023-06-28 | 2023-08-08 | 江苏锡缆特种线缆有限公司 | Low-smoke halogen-free polyolefin coated flame-retardant cable and coating processing technology thereof |
| CN116564594B (en) * | 2023-06-28 | 2023-11-21 | 江苏锡缆特种线缆有限公司 | Low-smoke halogen-free polyolefin coated flame-retardant cable and coating processing technology thereof |
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