CN201758018U - Fluorine plastic insulated intrinsic safety system instrument cable - Google Patents
Fluorine plastic insulated intrinsic safety system instrument cable Download PDFInfo
- Publication number
- CN201758018U CN201758018U CN2010202702576U CN201020270257U CN201758018U CN 201758018 U CN201758018 U CN 201758018U CN 2010202702576 U CN2010202702576 U CN 2010202702576U CN 201020270257 U CN201020270257 U CN 201020270257U CN 201758018 U CN201758018 U CN 201758018U
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- Prior art keywords
- conductor
- wrapped
- cable
- outer wrapping
- group
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- Expired - Fee Related
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- 239000004033 plastic Substances 0.000 title abstract description 6
- 229920003023 plastic Polymers 0.000 title abstract description 6
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052731 fluorine Inorganic materials 0.000 title abstract 3
- 239000011737 fluorine Substances 0.000 title abstract 3
- 239000004020 conductor Substances 0.000 claims abstract description 37
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 229920000728 polyester Polymers 0.000 claims abstract description 8
- 229920002313 fluoropolymer Polymers 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 239000010949 copper Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000009954 braiding Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009422 external insulation Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 241001589086 Bellapiscis medius Species 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Images
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- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The utility model discloses a fluorine plastic insulated intrinsic safety system instrument cable, which comprises conductors and insulated layers. The conductors include a plurality of conductor groups; one group includes two conductors; the outside of each conductor is wrapped by each insulated layer; color bands are attached to one side outside the insulated layers of each conductor group; twisted wire pairs are arranged on the outer side; the outsides of the twisted wire pairs and the color bands are wrapped by polyester bands; the outsides of the polyester bands are wrapped by branch shielding layers; the outsides of the conductor groups are wrapped by beltings; the outsides of the beltings are wrapped by a main shielding layer; jumpers are arranged inside the branch shielding layers and the main shielding layers; and the outside of the main shielding layer is wrapped by a sheath. The cable adopts fluorine plastics for insulation, improves mechanical strength, raises work temperature to 200 DEG C, and has the advantages of excellent electrical performance, low dielectric coefficient, high heat stability, low flammability, low hygroscopicity, excellent weather resistance and fine shielding effect.
Description
Technical field:
The utility model relates to instrument cable, relates in particular to a kind of fluoroplastic insulation intrinsic safety system instrument cable.
Background technology:
Cable is in order to transmit electricity (magnetic) energy, the wire product of information and the conversion of realization electromagnetic energy.Normally by the cable of several or at least two every group stranded similar ropes that form of several groups of leads, mutually insulated between every group of lead, and often be twisted into round a center, whole outside is surrounded by the cover layer of high-insulation.Electric wire mainly comprises bare wire, electromagnetic wire and electrical equipment and electrical insulated electric conductor, power cable, telecommunication cable and optical cable.
The utility model content:
The purpose of this utility model provides a kind of fluoroplastic insulation intrinsic safety system instrument cable, has solved cable because electric spark and thermal effect cause the problem of explosion hazard gases blast and cable selfcapacity and distributed inductance.
Technical scheme of the present utility model is as follows:
The fluoroplastic insulation intrinsic safety system instrument cable, comprise conductor, insulating barrier, it is characterized in that described conductor is divided into many group conductor groups, per two conductors are one group, every conductor outer wrapping insulating barrier, every group of outer side of insulating layer of conductor attaches colour band, it is right that opposite side is provided with twisted pair wire, twisted pair wire to colour band outer wrapping polyester belt, polyester belt outer wrapping sub-shield, described many group conductor group outer wrapping bands, the total screen of band outer wrapping, be provided with drainage thread in described sub-shield and the total screen, total screen outer wrapping sheath.
Described conductor material adopts high-quality annealing oxygen-free copper, and conductor external insulation layer material is fluoroplastics; The braiding of pair twist copper cash divides shielding and total shielding, and sheath material adopts fluoroplastics.
The selected material of the utility model is:
(1) conductor.Intrinsic safety system instrument cable is the current signal of the control of transmission weak electricity system, simulation.Because the big current signal of transmission, so cross-sectional area of conductor is bigger than telecommunication cable, and is general identical with the plain edition control cable, the cross-sectional area of conductor of using always be 0.75,1.0,1.5,2.5mm
2According to different service condition requirements, conductor structure can select for use conformance with standard GB/T 3956 regulation the 1st, 2 kind or the 5th kind of structure.
(2) insulation.The insulating material that instrument cable adopts is fluoroplastics.Improve the mechanical strength of cable, made the working temperature of cable bring up to 200 ℃ Celsius, had fabulous electric property, had low-k, high thermal stability, low combustible, agent of low hygroscopicity, outstanding weatherability.
(3) twisted pair wire is right.Because the signal of instrument cable transmission is identical with telecommunication cable, all are light current high-frequency signals, so the insulated wire cores structure of instrument cable all adopts the pair twist identical with the symmetric communication cable (or symmetry) structure, promptly the insulated wire cores by a pair of different colour codes forms by pair twister is stranded.Because twisted pair wire has the coordinated transposition effect to the loop of forming, can make in the loop disturbance current cancel out each other or reduce, but intersect pitch certain cooperation to be arranged, pitch is smaller when intersecting, and then intersects better effects if.Therefore, in the pair twist process, strict control pair twist pitch, and the right pitch that will guarantee adjacent lines has nothing in common with each other and do not have the even bit relation, in case the phase mutual interference of non-return road.Twisted pair wire is discerned common employing numeral or colour band sign, tightens at its surperficial wrapped non-hygroscopic band then.
(4) shielding.Usually this cable all adopts shielding construction, and shielding construction has the branch shielding, always shields and divides shielding to add up three kinds of shieldings etc.The mode of the overlapping wrapped or vertical bag of the aluminium-plastic tape of 0.05～0.1mm is adopted in shielding.Aluminium-plastic tape is by being base material with the plastic film, and single or double applies aluminium powder and makes, and during coating, aluminium is towards interior.For the electrical continuity that guarantees to shield, and convenient installation ground connection, to place a copper wire in the screen and make drainage thread, the drainage thread cross section is not less than 0.2mm
2The cable of aluminium-plastic tape shielding, external diameter is little, in light weight, soft, moistureproof, and shield effectiveness is good.
(5) cable element.Cable element (cable core) by each twisted pair wire to or divide shielding twisted pair wire strand to form.The twisted pair wire logarithm can be 1～61, and the preferential line of recommending is identical with the plain edition control cable to number.The cable core gap can adopt non-absorbent material to fill, so that the outward appearance rounding.Packing material should be consistent with the working temperature of cable, and should be compatible with contactant.Outer wrapped one or more layers band of cable core is tightened, and prevents that cable core is loose in the laid processes.Cable should adopt glass fibre gasket for packing material to fill, and the alkali-free glass fiber band is wrapped tightens.
(6) sheath.Sheath adopts fluoroplastics.
The utility model has the advantages that:
The utility model adopts fluoroplastics to be insulation, improve the mechanical strength of cable, made the cable working temperature bring up to 200 ℃ Celsius, had fabulous electric property, have low-k, high thermal stability, low combustible, agent of low hygroscopicity, outstanding weatherability, shield effectiveness is good.
Description of drawings:
Fig. 1 is the utility model structural representation.
Embodiment:
The fluoroplastic insulation intrinsic safety system instrument cable, comprise conductor 1, insulating barrier 2, conductor 1 is divided into many group conductor groups, per two conductors 1 are one group, every conductor 1 outer wrapping insulating barrier 2, every group of insulating layer of conductor 2 outer sides attach colour band 3, opposite side is provided with twisted pair wire to 5, twisted pair wire is to 5 and colour band 3 outer wrapping polyester belts 4, polyester belt 4 outer wrapping sub-shields 6, described many group conductor group outer wrapping bands 7, the total screen 9 of band 7 outer wrapping, be provided with drainage thread 8 in described sub-shield 6 and the total screen 9, total screen 9 outer wrapping sheaths 10.
Described conductor 1 material adopts high-quality annealing oxygen-free copper, and conductor 1 external insulation layer 2 materials are fluoroplastics; Pair twist copper cash braiding sub-shield 6 and total screen 9, sheath 10 materials adopt fluoroplastics.
Claims (2)
1. fluoroplastic insulation intrinsic safety system instrument cable, comprise conductor, insulating barrier, it is characterized in that described conductor is divided into many group conductor groups, per two conductors are one group, every conductor outer wrapping insulating barrier, every group of outer side of insulating layer of conductor attaches colour band, it is right that opposite side is provided with twisted pair wire, twisted pair wire to colour band outer wrapping polyester belt, polyester belt outer wrapping sub-shield, described many group conductor group outer wrapping bands, the total screen of band outer wrapping, be provided with drainage thread in described sub-shield and the total screen, total screen outer wrapping sheath.
2. fluoroplastic insulation intrinsic safety system instrument cable according to claim 1 is characterized in that described insulating layer material is fluoroplastics, and the working temperature of cable is brought up to 200 ℃, and sheath material adopts fluoroplastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202702576U CN201758018U (en) | 2010-07-21 | 2010-07-21 | Fluorine plastic insulated intrinsic safety system instrument cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202702576U CN201758018U (en) | 2010-07-21 | 2010-07-21 | Fluorine plastic insulated intrinsic safety system instrument cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201758018U true CN201758018U (en) | 2011-03-09 |
Family
ID=43645306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202702576U Expired - Fee Related CN201758018U (en) | 2010-07-21 | 2010-07-21 | Fluorine plastic insulated intrinsic safety system instrument cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201758018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723012A (en) * | 2020-12-30 | 2021-04-30 | 江西新吉电缆有限公司 | Instrument cable of crosslinked polyethylene insulation intrinsic safety system |
-
2010
- 2010-07-21 CN CN2010202702576U patent/CN201758018U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723012A (en) * | 2020-12-30 | 2021-04-30 | 江西新吉电缆有限公司 | Instrument cable of crosslinked polyethylene insulation intrinsic safety system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110309 Termination date: 20180721 |