CN204808955U - Symmetry flame retarded cable - Google Patents
Symmetry flame retarded cable Download PDFInfo
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- CN204808955U CN204808955U CN201520168885.6U CN201520168885U CN204808955U CN 204808955 U CN204808955 U CN 204808955U CN 201520168885 U CN201520168885 U CN 201520168885U CN 204808955 U CN204808955 U CN 204808955U
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- retardant cable
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Abstract
The utility model belongs to the technical field of the cable, especially be used for the transmission mode to fit data signal's symmetry flame retarded cable. The cable includes in proper order: the cable core, the cable core is at least including the electrically conductive heart yearn a pair of symmetry, that keep apart, that the cladding has fire -retardant organo -silicone rubber, and this heart yearn is the intorsion form and has polyimide film, and this membrane has the cross section of S -shaped and surrounds every and keep apart electrically conductive heart yearn and make each electrically conductive heart yearn fixed each other, the shielding layer, it includes lamination aluminium foil and contact conductor, with the sheath that polymeric material by indiffusion burning formed, set up the beam waist formula insulating layer that forms by the polymerization complex of indiffusion burning between cable core and shielding layer, the shielding layer is formed to double -deck, and the first layer is made by the lamination aluminium foil, and the metal level is outside, and the second floor is formed by the weaving layer of tinned copper wire, and contacts the conductor and arrange between lamination aluminium foil and weaving layer. The utility model provides high the fire prevention security of cable, its immunity and the stability when influenced by machinery.
Description
Technical field
The utility model belongs to field of cable technology, especially for the symmetrical flame retardant cable of transportation simulator and digital signal.
Background technology
The immediate prior art of the utility model of the application is symmetrical flame retardant cable, comprise following configuration successively: cable core, described cable core at least comprises a pair symmetry, isolation, the conductive core line of coated flame-proof organosilicon rubber, described heart yearn is twisting shape and with polyimide film, described polyimide film have S shape cross section and around each isolation heart yearn and fix each other, be furnished with on cable core and comprise laminated aluminium foil, sheath (the RU2370839 that the screen contacting conductor and the polymeric material burnt by indiffusion are formed, 20.10.2009) [1].The structure Shortcomings of this known cable.Particularly, screen is directly arranged on cable core and causes signal attenuation to increase, and the shielding layer structure without braid can not guarantee that cable has the high anti-interfering performance avoiding being subject to external electromagnetic fields.
Utility model content
Propose the purpose of this utility model to be to address the problem, comprise the deficiency eliminating existing typical technology, the scope of application expanding cable.
Technique effect of the present utility model is: by reducing the signal attenuation of cable when transmitting data and can improving interference free performance and the mechanical stability of cable, thus improve the serviceability of cable.
The symmetrical flame retardant cable realizing technique effect of the present utility model comprises configuration following successively: cable core, described cable core at least comprise a pair symmetry, isolation, the conductive core line that covers flame-proof organosilicon rubber, described conductive core line is twisting shape and with polyimide film, described polyimide film has the cross section of S shape, and described polyimide film is around each heart yearn of isolating and fix each other; Screen, described screen comprises laminated aluminium foil and contacts conductor; And the sheath that the polymeric material to be burnt by indiffusion is formed, in this case, the girdling type insulating barrier that burnt by indiffusion, not halogen-containing polymer compound is formed is set between cable core and screen, screen is formed as double-deck, and ground floor is made up of laminated aluminium foil, metal level is outside, and the second layer is formed by the braid of tinned copper wire, and contacts conductor arrangement between laminated aluminium foil and braid.
The utility model application comprises the few examples according to the novel manufacture method of the utility model or purposes.
The feature of symmetrical flame retardant cable is, the conductive core line of described symmetrical flame retardant cable is formed into multiple wire system.
The feature of symmetrical flame retardant cable is, twisting conductive core line on, on polyimide film, arrange the single of polypropylene film, described single can increase twisted wire to and screen between distance, this more can guarantee to reduce twisted wire to and screen between the relative dielectric constant of medium, thus guarantee generally to reduce signal attenuation coefficient.
On the single of the embodiment of flame retardant cable, can spirally, imbricate ground cover glass mica tape, described glass-mica tape is in heat effect and can guarantee under combining the condition of repeatedly mechanical shock effect to strengthen and improve the durability of insulator when being damaged formed by organic silicon rubber.
The feature of symmetrical flame retardant cable is, sheath is formed by the igelite that fire hazard is low, to guarantee to improve fire savety.
The feature of symmetrical flame retardant cable is, sheath is configured with armor, and the form of armor is the braid that zinc-coated wire is formed, thus guarantees the durability of cable under mechanical influence and protect cable not affect by rodentine.
The feature of symmetrical flame retardant cable is; protection tube is provided with on armor; the compound that described protection tube is burnt by not halogen-containing, indiffusion or fire hazard low igelite are formed, thus guarantee that the armor of cable is by the impact of the corrosive medium in the external world.
The feature of symmetrical flame retardant cable is; between sheath and armor, have the layer formed by material water-proof material, the described layer formed by material water-proof material is guaranteed when humidity increases when maintenance cable to form protection to prevent space steam from entering along the injury region of the pipe of cable.
Accompanying drawing explanation
The accompanying drawing of utility model is described as follows.
Fig. 1-cable cross-section figure.
Fig. 2-cable longitudinal section.
The cross-sectional view of Fig. 3-have cable of glass-mica tape.
The longitudinal section of Fig. 4-have cable of glass-mica tape.
Embodiment
Symmetrical flame retardant cable comprises cable core, cable core comprises the conductive core line 1 of the multiple wire system formed by the copper cash of twisting, insulation 2 is formed by fire-retardant organic silicon rubber, conductive core line is coated with polyimide film 3, described polyimide film have S shape cross section and around the heart yearn being enclosed in each isolation with fixing each other.Cable core is placed in girdling type insulating barrier 4, and the not halogen-containing polymer composites that described insulating barrier is burnt by indiffusion is formed.Insulating barrier 4 is coated with screen 5, and described screen is made up of laminated aluminium foil and the tincopper fuse wire braided armor covered on described laminated aluminium foil, and between laminated aluminium foil and braid, be furnished with the conductor formed by intensive rounded tinned copper silk.Screen 5 covers the sheath 6 that the polymeric material that burnt by indiffusion is formed, described polymeric material is such as that fire hazard is low and the igelite that smoke and gas body release performance is low.Under special circumstances, in embodiment of the present utility model, sheath 6 is coated with armor 7, described armor is the braid of galvanized steel wire.Armor 7 can be arranged in the below of protection tube 8, and described protection tube fills the low igelite of not halogen-containing polymer composites or the low and smog of fire hazard and gas release property.
In the fabrication scheme of symmetrical flame retardant cable, polyimide film 3 is arranged and the single 10 of filled polypropylene film, there is spiral, that edge is overlapping glass-mica tape 9 on described single.In the maintenance of cable, under the condition that humidity is too high (such as aboard ship, oil platform on), the layer formed by material water-proof material is set between sheath and armor, such as, the resistance layer formed by block water line or waterstop
(not shown).
According to the utility model application, the technique manufacturing cable comprises following operation.
The conductive core line 1 of multiple wire system is formed by the copper lines twisting of circle.Each conductive core line 1 covers the insulation 2 formed by flame-proof organosilicon rubber, the form of described insulator is concentric solid layer, and the manufacture method that conductive core line covers insulation is the combination of the hardening process adopting extrusion process and carry out sclerosis continuously on cable.The heart yearn 1 of isolation and polyimide film 3 combine by strander, and it is right to twist into.According to an embodiment of the present utility model, the polyimide film on the conductive core line being positioned at twisting has polypropylene film single 10.According to an embodiment of the present utility model, by packing machine each twisting, isolation heart yearn on coated glass-mica tape 9, the overlapping edge of described glass-mica tape is no less than 15%.Online to the extrusion line above (twisted wire pair bundle) covering the girdling type insulating barrier 4 formed by polymeric composites, described insulating barrier does not comprise halogen (such as, thermoplastic not halogen-containing fire prevention compound).On girdling type insulating barrier 4, be coated with two-layer armor 5, described two-layer armor is the braid of laminated aluminium foil (coat of metal is outside) and tinned copper wire, now, is furnished with contact conductor between laminated aluminium foil and braid.Contact conductor is formed by tinned copper wire.The sheath 6 that in extrusion line on screen 5, overlie polymer synthesis is formed, described sheath does not conform to halogen or low and smog and the low igelite of gas release property are formed by fire hazard.In the special circumstances that the utility model is implemented, covering protection element (armor) on sheath 6, the form of described protection component is the braid 7 formed with galvanized steel wire.Braid 7 is formed uniformly by braiding machine, and the superficial density coefficient of described braid is not less than 70%.In the specific embodiments of cable, between sheath 6 and armor 7, apply the layer formed by material water-proof material, such as, the resistance layer formed by block water line or waterstop
(not shown).Covering protection pipe 8 on extruded threads on braid 7, described protection tube is formed by the polymer composites not giving up halogen, such as, the fire prevention compound of thermoplastic halogen or the low and smog of fire hazard and the low igelite of gas release property.
The diameter of the conductive core line of cable is 0.78mm to 2.00mm.Isolate conductive core line that is fire-retardant, organic silicon rubber and become multiple twin wire and with polyimide film.The cable core of cable comprises from 1 to 10 the conductive core line of isolating.The diameter of insulator is from 2.18mm to 3.80mm.Each twisted pair with polyimide film has glass-mica tape.The girdling type insulating barrier covered on cable core is formed by polymer composites, and described polymer composites does not conform to halogen.Screen is formed by laminated aluminium foil, and its metal level is outside, and overlapping edge is not less than 15%.Lay on laminated aluminium foil and contact conductor and the braid covering tinned copper wire, the superficial density coefficient of described braid is not less than 60%.The sheath of cable is made up of polymer composites, described polymer composites indiffusion burning and not halogen-containing.Armor is arranged in above the sheath of cable, and the form of described armor is the braid formed by the galvanized steel wire of circle, and the superficial density coefficient of described braid is not less than 70%.Covering protection pipe on armor, described protection tube is formed by not halogen-containing polymer composites.
Document
[1] invention characteristic 2370839, H01B11/02, H01B7/295, publication No:29,2009, Co., Ltd (OOO) science manufacturing enterprise (H ∏ ∏) "
".
Claims (9)
1. a symmetrical flame retardant cable, described symmetrical flame retardant cable comprises successively: cable core, described cable core at least comprise a pair symmetry, isolation, the conductive core line that is coated with flame-proof organosilicon rubber, described conductive core line is twisting shape and with polyimide film, described polyimide film have S shape cross section and around each isolation conductive core line and each conductive core line is fixed each other; Screen, described screen comprises laminated aluminium foil and contacts conductor; With the sheath that the polymeric material burnt by indiffusion is formed, it is characterized in that, the girdling type insulating barrier that the polymer composites that burnt by indiffusion is formed is set between cable core and screen, screen is formed double-deck, when screen is double-deck, the first screen is made up of laminated aluminium foil, and metal level is outside, secondary shielding layer is formed by the braid of tinned copper wire, and contact conductor arrangement between laminated aluminium foil and braid.
2. symmetrical flame retardant cable according to claim 1, is characterized in that, conductive core line is configured to multiple wire system.
3. symmetrical flame retardant cable according to claim 1, is characterized in that, the single of polypropylene film covers on polyimide film, and glass-mica tape spirally, edge covers on described single overlappingly.
4. symmetrical flame retardant cable according to claim 1, it is characterized in that, sheath is formed by igelite.
5. the symmetrical flame retardant cable according to any one in claim 1,2,3,4, is characterized in that, armor covers above sheath, and the form of armor is the braid formed by zinc-coated wire.
6. symmetrical flame retardant cable according to claim 5, it is characterized in that, protection tube covers above armor.
7. the symmetrical flame retardant cable according to any one in claim 1,2,3,4, is characterized in that, the layer formed by material water-proof material covers on sheath, and the described layer formed by material water-proof material is coated with armor.
8. symmetrical flame retardant cable according to claim 6, is characterized in that, the compound that protection tube is burnt by not halogen-containing indiffusion is made.
9. symmetrical flame retardant cable according to claim 6, it is characterized in that, protection tube is made up of igelite.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RURU2014123587 | 2014-06-10 | ||
| RU2014123587/07U RU148021U1 (en) | 2014-06-10 | 2014-06-10 | SYMMETRIC FIRE RESISTANT CABLE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204808955U true CN204808955U (en) | 2015-11-25 |
Family
ID=53385123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520168885.6U Active CN204808955U (en) | 2014-06-10 | 2015-03-13 | Symmetry flame retarded cable |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204808955U (en) |
| RU (1) | RU148021U1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU172289U1 (en) * | 2016-12-28 | 2017-07-04 | Общество с ограниченной ответственностью "Кабель Технологии Инновации" | CABLE HEAT-RESISTANT SCREEN |
| RU189296U1 (en) * | 2019-01-14 | 2019-05-21 | Евгений Александрович Патраков | CABLE FOR SIGNALING AND BLOCKING, MOISTURE RESISTANT, ARMORED, PROTECTED AGAINST RODENTS |
| RU191219U1 (en) * | 2019-05-14 | 2019-07-30 | Евгений Александрович Патраков | CABLE FOR SIGNALING AND LOCKING FOR UNDERGROUND RAIL TRANSPORT |
| RU191220U1 (en) * | 2019-05-14 | 2019-07-30 | Евгений Александрович Патраков | WATERPROOF CABLE FOR ALARM AND LOCKING, FOR UNDERGROUND RAIL TRANSPORT |
| RU191218U1 (en) * | 2019-05-14 | 2019-07-30 | Евгений Александрович Патраков | CABLE FOR SIGNALING AND LOCKING, SCREENED, FOR UNDERGROUND RAIL TRANSPORT |
-
2014
- 2014-06-10 RU RU2014123587/07U patent/RU148021U1/en active
-
2015
- 2015-03-13 CN CN201520168885.6U patent/CN204808955U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| RU148021U1 (en) | 2014-11-20 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |