CN203787142U - Environment-friendly high-temperature-resistant tensile intrinsic-safe computer shield cable - Google Patents
Environment-friendly high-temperature-resistant tensile intrinsic-safe computer shield cable Download PDFInfo
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- CN203787142U CN203787142U CN201420031791.XU CN201420031791U CN203787142U CN 203787142 U CN203787142 U CN 203787142U CN 201420031791 U CN201420031791 U CN 201420031791U CN 203787142 U CN203787142 U CN 203787142U
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Abstract
The utility model provides an environment-friendly high-temperature-resistant tensile intrinsic-safe computer shield cable. The cable comprises four conductors which are vertically arranged in parallel and are circumscribed to each other. A cable core is formed by the four conductors. The conductor is composed by three twisted wires, and an inner polyester tape wrapping layer and a first shielding layer which coat the wires in sequence. The wire is composed of a wire core and an insulating layer coating the wire core. Gaps between the inner polyester tape wrapping layer and the four conductors are filled with waterproof filling material. The cable core is sequentially coated by an outer polyester tape wrapping layer, a second shielding layer, a steel wire armor layer and an outer sheath layer. A filling rope with a cross section of right angled triangle shape is arranged in a gap between a group of any adjacent conductors and the outer polyester tape wrapping layer. The two right angled faces of the filling rope are circumscribed to the conductor group. The cable provided by the utility model has the advantages of high-temperature resistance, fire resistance, flame retardation, environment friendship, softness, and tensile and shielding properties. By adopting the above technical scheme, the structure of the cable is ensured to be compact, and the waterproof performance of the cable is improved, so that the cable has excellent electrical performance.
Description
Technical field
The utility model relates to electric power cable technical field, relates in particular to a kind of environment friendly heat resistant tensile type intrinsic safety computer shielded cable.
Background technology
Along with society constantly advances, universal utilization due to computer system, particularly this system is also more and more higher to the requirement of workplace: high temperature resistant, explosion-proof, so be like this too to the requirement of cable, conventional anti-explosion cable is that conductor increases fireproof mica band structure or magnesium oxide outward, but these conventional anti-explosion cables have a fatal defect: mobile effect extreme difference, and the former cable high-temperature resistant result is poor, and contaminated environment in combustion process, silicone rubber for cable itself also has certain explosion-proof performance, the silicon dioxide that cable generates in combustion process also can play insulating effect, but the flame retardant effect of silicone rubber for cable is poor, when cable fire, withdrawing naked light cable will burn away, can not automatic distinguishing.Require cable to have good shielding properties simultaneously, have good anti-external electromagnetic field and disturb and do not produce external interference, this just requires cable to have " essential safety " characteristic.
To the mobile requirement with cable too, it is also more and more higher requiring, if cable does not have good flexibility and good tensile property, affects so to a great extent the useful life of electric wire at present.At present domestic applicable mobile insulation and sheath material with cable is a lot, and most employing of tensile structure is added on the both sides of round cable or the both sides of flat cable, when equipment is installed, by strengthening tension steel wire, is connected in required computer control system.Because increased the tensile structure of cable, the external diameter of cable also increases a lot, has occupied computer control system space.
Utility model content
In order to solve the technical problem existing in background technology, the utility model proposes a kind of environment friendly heat resistant tensile type intrinsic safety computer shielded cable, it has good high-temperature stability, fire-resistance property, flame-retarding characteristic, environmental protection characteristic, flexible nature and tensile characteristics, and the scope of application is more wide.
A kind of environment friendly heat resistant tensile type intrinsic safety computer shielded cable the utility model proposes, comprise by four parallel vertical put and mutually circumscribed conductor form cable core, conductor consists of three pair twist wires and the interior polyester belt lapping layer and the first screen that are coated on successively outside wire, wire consists of core and the insulating barrier that is coated on outside core, the packing material that blocks water is inserted in space between interior polyester belt lapping layer and four conductors, polyester belt lapping layer outside cable core is coated outward successively, secondary shielding layer, wire armoring layer and external sheath layer, between the conductor group of arbitrary neighborhood and outer polyester belt lapping layer, the gasket for packing that cross section is right-angled triangle is inserted in space, and two right angle faces and the conductor group of gasket for packing are circumscribed.
Preferably, in the first screen, secondary shielding layer, be equipped with drainage thread.
Preferably, drainage thread adopts copper wire to make, and drainage thread cross section is not less than 0.3mm
2.
Preferably, the count of wire armoring layer is at 35%-45%.
Preferably, insulating barrier, external sheath layer adopt environmental-protection flame-retardant macromolecule silicon rubber insulation material, SiO in silicon rubber insulation material
2molecular weight up to more than 700,000 playing insulating effect.
The utility model adopts wire armoring layer in order to improve the tensile strength of cable, without connect tensile device in computer control system, has so also saved the space of computer control system.During electric installation, need only conductor is connected reliably just passable, more convenient to use.Wire armoring layer can also play the effect of shielding outer signals, and has advantages of the oversheath of preventing cracking, long service life.
The utlity model has good high-temperature stability, fire-resistance property, flame-retarding characteristic, environmental protection characteristic, flexible nature, tensile characteristics and shielding character; Both guarantee the compactedness of the construction of cable, improved again the block-water performance of cable, there is fabulous electric property.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of environment friendly heat resistant tensile type intrinsic safety computer shielded cable that the utility model proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of environment friendly heat resistant tensile type intrinsic safety computer shielded cable that the utility model proposes.
With reference to Fig. 1, a kind of environment friendly heat resistant tensile type intrinsic safety computer shielded cable the utility model proposes, comprise by four parallel vertical putting and circumscribed conductor forms mutually cable core, conductor consists of three pair twist wires 1 and the interior polyester belt lapping layer 2 and the first screen 3 that are coated on successively outside wire 1, wire 1 consists of core 11 and the insulating barrier 12 that is coated on outside core 11, the packing material 4 that blocks water is inserted in space between interior polyester belt lapping layer 2 and four conductors, polyester belt lapping layer 5 outside cable core is coated outward successively, secondary shielding layer 6, wire armoring layer 7 and external sheath layer 8, the count of wire armoring layer 7 is at 35%-45%, between the conductor group of arbitrary neighborhood and outer polyester belt lapping layer 5, the gasket for packing 9 that cross section is right-angled triangle is inserted in space, and two right angle faces and the conductor group of gasket for packing 9 are circumscribed, guarantee the roundness of cable.
Wherein, in the first screen 3, secondary shielding layer 6, be equipped with drainage thread 10, drainage thread adopts a copper wire, and drainage thread cross section is not less than 0.3mm
2.
Insulating barrier 12,8 layers of employing environmental-protection flame-retardant macromolecule silicon rubber insulation material of oversheath, SiO in silicon rubber insulation material
2molecular weight can be up to more than 700,000 playing insulating effect, and add the Sb of 13-25wt%
2o
3and the C of 5-15wt%
12oBr
10, the Sb in this material
2o
3and C
12oBr
10with SiO
2be combined with good fire resistance.
The utility model adopts wire armoring layer in order to improve the tensile strength of cable, without connect tensile device in computer control system, has so also saved the space of computer control system.During electric installation, need only conductor is connected reliably just passable, more convenient to use.Wire armoring layer 7 can also play the effect of shielding outer signals, and has advantages of the oversheath of preventing cracking, long service life.
Above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and utility model design thereof, be equal to replacement or changed, within all should being encompassed in protection range of the present utility model.
Claims (5)
1. an environment friendly heat resistant tensile type intrinsic safety computer shielded cable, it is characterized in that, comprise by four parallel vertical put and mutually circumscribed conductor form cable core, conductor is by three pair twist wires (1) and be coated on successively the outer interior polyester belt lapping layer (2) of wire (1) and the first screen (3) formation, wire (1) is by core (11) and be coated on outer insulating barrier (12) formation of core (11), the packing material that blocks water (4) is inserted in space between interior polyester belt lapping layer (2) and four conductors, polyester belt lapping layer (5) outside cable core is coated outward successively, secondary shielding layer (6), wire armoring layer (7) and external sheath layer (8), between the conductor group of arbitrary neighborhood and outer polyester belt lapping layer (5), the gasket for packing that cross section is right-angled triangle (9) is inserted in space, and two right angle faces and the conductor group of gasket for packing (9) are circumscribed.
2. environment friendly heat resistant tensile type intrinsic safety computer shielded cable according to claim 1, is characterized in that, in the first screen (3), secondary shielding layer (6), is equipped with drainage thread (10).
3. environment friendly heat resistant tensile type intrinsic safety computer shielded cable according to claim 2, is characterized in that, drainage thread adopts copper wire to make.
4. environment friendly heat resistant tensile type intrinsic safety computer shielded cable according to claim 1, is characterized in that, the count of wire armoring layer (7) is at 35%-45%.
5. environment friendly heat resistant tensile type intrinsic safety computer shielded cable according to claim 1, is characterized in that, insulating barrier (12), oversheath (8) layer adopt environmental-protection flame-retardant macromolecule silicon rubber insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031791.XU CN203787142U (en) | 2014-01-18 | 2014-01-18 | Environment-friendly high-temperature-resistant tensile intrinsic-safe computer shield cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031791.XU CN203787142U (en) | 2014-01-18 | 2014-01-18 | Environment-friendly high-temperature-resistant tensile intrinsic-safe computer shield cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787142U true CN203787142U (en) | 2014-08-20 |
Family
ID=51323303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420031791.XU Expired - Fee Related CN203787142U (en) | 2014-01-18 | 2014-01-18 | Environment-friendly high-temperature-resistant tensile intrinsic-safe computer shield cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787142U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794274A (en) * | 2014-01-18 | 2014-05-14 | 安徽华茜电缆科技有限公司 | Environmental protection high-temperature-resistant pulling-resistant type intrinsic safety computer shield cable |
-
2014
- 2014-01-18 CN CN201420031791.XU patent/CN203787142U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794274A (en) * | 2014-01-18 | 2014-05-14 | 安徽华茜电缆科技有限公司 | Environmental protection high-temperature-resistant pulling-resistant type intrinsic safety computer shield cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20160118 |
|
| EXPY | Termination of patent right or utility model |