CN201788726U - Marine instrument cable - Google Patents
Marine instrument cable Download PDFInfo
- Publication number
- CN201788726U CN201788726U CN2010205168449U CN201020516844U CN201788726U CN 201788726 U CN201788726 U CN 201788726U CN 2010205168449 U CN2010205168449 U CN 2010205168449U CN 201020516844 U CN201020516844 U CN 201020516844U CN 201788726 U CN201788726 U CN 201788726U
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Abstract
The utility model discloses an environment-friendly marine instrument cable which is low-smoke, halogen-free, low-toxicity and safe in nature, and comprises conductors and insulating layers, wherein a plurality of conductor groups are arranged, and each conductor group consists of two conductors; each conductor is wrapped with the insulating layer; a colored tape is attached at one side of the exterior of the insulating layer of the conductor in each group, and a twisted pair is arranged at the other side of the exterior of the insulating layer of the conductor in each group; a polyester tape wraps the twisted pair and the colored tape, and a sub-shielding layer wraps the polyester tape; a wrapping belt wraps the conductor groups, an overall shielding layer wraps the wrapping belt, and a sheath wraps the overall shielding layer; and the sub-shielding layers and the overall shielding layer are internally provided with drainage wires. The marine instrument cable has the advantages of reducing the working capacitance, improving the insulating resistance and the voltage resistance, having excellent flame retardant property, low smoke generated when in combustion, low capacitance and inductance, good shielding performance, and excellent resistance to the interference of external electromagnetic field, being not easy to generate sparks, and avoiding from causing interference to the outside.
Description
Technical field:
The utility model relates to the instrument cable field, relates in particular to a kind of marine instrumentation cable.
Background technology:
Along with development of human society and progress of science and technology, make the mankind obtain huge interests and freedom from occurring in nature, various accidents and disaster also take place again and again simultaneously.And in numerous disasters, electric wire is usually played the part of the role of burning things which may cause a fire disaster and blasting fuse, and fire is expanded rapidly, and produce a large amount of smog and poison gas, and damaged valuable electronic instrument and equipment, have a strong impact on withdrawing of fire-fighting and rescue and Field Force, thereby enlarged disaster.For this reason, Halogen, low cigarette, low-poison and combustion-resisting power cable are in great demand, and are widely used in each department of national economy.
At present, in " electric wire production development project study ", mention in country's the ninth five-year plan and 2010 imagination: from current demand of user and development from now on, key is to go up level (quality level and technical merit), the kind of development derivation, extension type, combined, compact, and the kind of studying some high-tech performances, for example low smoke, zero halogen low toxicity type Plastic-sheathed Cable and plastic cable, medium pressure grade shipboard cable.
The utility model content:
The purpose of this utility model provides a kind of marine instrumentation 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:
A kind of marine instrumentation cable, comprise conductor, insulating barrier, described conductor is divided into many group conductor groups, per two conductors are one group, every conductor outer wrapping insulating barrier, it is characterized in that: the outer side of described every group 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 is provided with drainage thread in described sub-shield and the total screen, total screen outer wrapping restrictive coating, village's layer in restrictive coating is wrapped with, interior village layer is wrapped with armouring.
Described marine instrumentation cable, it is characterized in that: described screen adopts the mode of the overlapping wrapped or vertical bag of the aluminium-plastic tape of 0.05～0.09mm, and aluminium-plastic tape is by being base material with the plastic film, and single or double applies aluminium powder and makes, during coating, aluminium is towards interior; Place a copper wire in the screen and make drainage thread, the drainage thread cross section is not less than 0.2mm
2
Described marine instrumentation cable is characterized in that described insulating layer material is a crosslinked polyethylene, and the restrictive coating material adopts polyolefin.
The selected material of the utility model is:
(1) conductor.Intrinsic safety system marine instrumentation cable is the current signal of the control of transmission weak electricity system, simulation.Cross-sectional area of conductor 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 tin-coated copper conductor.
(2) insulation.The insulating material that the marine instrumentation cable adopts is crosslinked polyethylene (XLPE).The working temperature of crosslinked polyethylene is 90 ℃, and dielectric loss and dielectric constant are little, and the electric property excellence, and all there is superiority aspects such as mechanical performance, thermal endurance class and antiseptic power.
(3) twisted pair wire is right.Because the signal of marine instrumentation cable transmission is identical with instrument cable, all are light current high-frequency signals, so the insulated wire cores structure of marine instrumentation cable all adopts the pair twist identical with symmetrical instrument 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.This cable all adopts shielding construction, and shielding construction has 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 0.05～0.09mm 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.Have the cable of fire-retardant requirement should adopt fire proofing to fill, and fire-retardant band is wrapped tightens.
(6) armouring.Armouring can adopt the wrapped mode in two ribbon spiral shape gaps, also can adopt the braided steel wire mode, under the armour inner covering will be arranged.Because painted steel has poison, armouring tape should adopt galvanized steel strip, and cable can bear bigger radial pressure behind steel-tape armouring; And the cable of braided steel wire armouring can bear bigger longitudinal pulling force, and soft, but working (machining) efficiency is low, the cost height.If cable has sheathed structure, invar aluminium (screen) combining structure then, the jamproof shield effectiveness of cable is better.
(7) sheath.Sheath adopts polyolefine material, has so both reduced environmental pollution, improves the fire-resistance property of cable again.According to the requirement of intrinsic safety system, the color of sheath is blue, so that distinguish with cable with the non-intrinsically safe safety system.
The utility model has the advantages that:
The utility model crosslinked polyethylene is insulation, helps to reduce mutual capacitance, improves insulation resistance, improves voltage-resistent characteristic, has good flame retardant property; Halogen gas, gas pH value of water solution and the conductivity of overflowing during the cable material burning are low, have the low-corrosiveness energy; It is few to generate smog during cable fire.Cable has low electric capacity and low inductance, cable itself with electric charge to lack, be difficult for to produce electric spark; Secondly, cable has good shielding properties, and good anti-external electromagnetic field disturbs and do not produce external interference.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
A kind of marine instrumentation 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 4, and twisted pair wire is to 4 and colour band 3 outer wrapping polyester belts 5, polyester belt 5 outer wrapping sub-shields 6, many group conductor group outer wrapping bands 7, the total screen 8 of band 7 outer wrapping is provided with drainage thread 9 in sub-shield 6 and the total screen 8, total screen 8 outer wrapping restrictive coatings 10, village's layer 11 in restrictive coating 10 is wrapped with, interior village layer 11 is wrapped with armouring 12.
Claims (3)
1. marine instrumentation cable, comprise conductor, insulating barrier, described conductor is divided into many group conductor groups, per two conductors are one group, every conductor outer wrapping insulating barrier, it is characterized in that: the outer side of described every group 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 is provided with drainage thread in described sub-shield and the total screen, total screen outer wrapping restrictive coating, village's layer in restrictive coating is wrapped with, interior village layer is wrapped with armouring.
2. marine instrumentation cable according to claim 1, it is characterized in that: described screen adopts the mode of the overlapping wrapped or vertical bag of the aluminium-plastic tape of 0.05～0.09mm, and aluminium-plastic tape is by being base material with the plastic film, and single or double applies aluminium powder and makes, during coating, aluminium is towards interior; Place a copper wire in the screen and make drainage thread, the drainage thread cross section is not less than 0.2mm
2
3. marine instrumentation cable according to claim 1 is characterized in that described insulating layer material is a crosslinked polyethylene, and the restrictive coating material adopts polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205168449U CN201788726U (en) | 2010-09-01 | 2010-09-01 | Marine instrument cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205168449U CN201788726U (en) | 2010-09-01 | 2010-09-01 | Marine instrument cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788726U true CN201788726U (en) | 2011-04-06 |
Family
ID=43820683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205168449U Expired - Fee Related CN201788726U (en) | 2010-09-01 | 2010-09-01 | Marine instrument cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201788726U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664073A (en) * | 2012-05-28 | 2012-09-12 | 南京全信传输科技股份有限公司 | Vessel low-smoke halogen-free low-toxicity rat-proof digital-signal super-category-five communication cable |
| CN102800412A (en) * | 2012-08-14 | 2012-11-28 | 江苏通鼎光电科技有限公司 | Full inflaming retarding transponder data transmission cable |
| CN102945705A (en) * | 2012-11-19 | 2013-02-27 | 四川明星电缆股份有限公司 | Low-smoke halogen-free fireproof communication cable for ship and manufacturing method thereof |
| CN104867600A (en) * | 2014-02-26 | 2015-08-26 | 安徽红旗电缆集团有限公司 | Ship control current guiding cable |
-
2010
- 2010-09-01 CN CN2010205168449U patent/CN201788726U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664073A (en) * | 2012-05-28 | 2012-09-12 | 南京全信传输科技股份有限公司 | Vessel low-smoke halogen-free low-toxicity rat-proof digital-signal super-category-five communication cable |
| CN102800412A (en) * | 2012-08-14 | 2012-11-28 | 江苏通鼎光电科技有限公司 | Full inflaming retarding transponder data transmission cable |
| CN102945705A (en) * | 2012-11-19 | 2013-02-27 | 四川明星电缆股份有限公司 | Low-smoke halogen-free fireproof communication cable for ship and manufacturing method thereof |
| CN102945705B (en) * | 2012-11-19 | 2015-04-22 | 四川明星电缆股份有限公司 | Low-smoke halogen-free fireproof communication cable for ship and manufacturing method thereof |
| CN104867600A (en) * | 2014-02-26 | 2015-08-26 | 安徽红旗电缆集团有限公司 | Ship control current guiding 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: 20110406 Termination date: 20150901 |
|
| EXPY | Termination of patent right or utility model |