CN203850030U - Flame-retardant cable - Google Patents
Flame-retardant cable Download PDFInfo
- Publication number
- CN203850030U CN203850030U CN201420160939.XU CN201420160939U CN203850030U CN 203850030 U CN203850030 U CN 203850030U CN 201420160939 U CN201420160939 U CN 201420160939U CN 203850030 U CN203850030 U CN 203850030U
- Authority
- CN
- China
- Prior art keywords
- flame retardant
- cable
- flame
- retardant cable
- retardant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 52
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000004020 conductor Substances 0.000 claims abstract description 30
- 229920001971 elastomer Polymers 0.000 claims description 26
- 230000002401 inhibitory effect Effects 0.000 claims description 22
- 230000002787 reinforcement Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 241000108463 Hygrophila <snail> Species 0.000 claims description 11
- 239000000806 elastomer Substances 0.000 claims description 10
- 239000004800 polyvinyl chloride Substances 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 8
- 238000009940 knitting Methods 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000012946 outsourcing Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 2
- 238000006116 polymerization reaction Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- -1 polychloroethylene Polymers 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001095 light aluminium alloy Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000979 retarding effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model provides a flame-retardant cable which comprises at least one conductor beam which is wrapped up by an insulating layer to form an insulating core. At least three insulating cores, each wrapped up by a flame-retardant band, are arranged in the flame-retardant cable, and all three insulating cores are integrally wrapped up by a flame-retardant band. A sheath is arranged outside the flame-retardant band, and a metallic linking armor is arranged outside the sheath. Each insulating core is wrapped up by a flame-retardant band, so that the insulating cores are flame-retardant independently. All three insulating cores, twisted into a cable, are integrally wrapped up by a flame-retardant band to form a double-layer winding flame-retardant structure of an individual flame-retardant structure and a general flame-retardant structure. Moreover, the armor structure form and position are different than those of a conventional cable, and the metallic linking armor is arranged outside the sheath to form a metallic flame-retardant layer. In this way, the sheath can be protected, the flame-retardant purpose is achieved, and flame-retardant performance of the cable is enhanced.
Description
Technical field
The utility model relates to cable, espespecially a kind of flame retardant cable.
Background technology
Electric wire is the wire product that transmits electricity (magnetic) energy, information and realize electromagnetic energy conversion.The cable to main power source power supply in tower machine hoisting operation of take is example, this cable is mainly 3 and adds 2 type copper core heavy tape cabtyre cables, 3 main cores transmit to tower machine control room 400V three phase mains for ground power supply, 2 cores arrive the single-phase control power delivery of tower machine control room 220V for ground power supply, cable length is highly consistent with the lifting of tower machine, is generally 60-100 rice.And tower machine major part is to work under rugged environment, at high temperature and operate at full capacity for a long time under condition, exist disaster hidden-trouble, general Plastic-sheathed Cable anti-flammability is poor, so selecting flame retardant type Plastic-sheathed Cable is the major way that solves disaster hidden-trouble problem, and flame retardant type Plastic-sheathed Cable generally has two kinds of execution modes, a kind of is with flame retardant type rubber jacking, to replace general rubber jacking in production process, in general rubber jacking, add fire retardant and form flame retardant type rubber jacking, yet add fire retardant, can cause rubber cover weight to increase and mechanical performance decline, cost improves; Another kind of execution mode is direct wrapped inhibiting tape on conductive copper core, and five-core cable described above just need to carry out five times wrapped operation, and technique is loaded down with trivial details, and cost is high, and on conductor, wrapped inhibiting tape can hinder the heat radiation that conductor dbus is crossed insulating barrier.So also do not have in existing cable simultaneously to solve fire-retardant problem, conductor cores heat dissipation problem, and flame retardant cable structure with the simple feature of around-packing technology.
The defects such as in addition, tower machine also has cable own wt weight with Plastic-sheathed Cable, and rubber cover tensile strength is little, difficult fixing, and crush resistance is poor.
Particularly, Plastic-sheathed Cable own wt weight, 114 kilograms/100 meters of cable deadweights, wherein the deadweight of rubber cover is 42 kilograms/100 meters, 55 kilograms/100 meters of main line deadweights, 15 kilograms/100 meters of subordinate line deadweights, fill 2 kilograms/100 meters of band deadweights.The load-bearing of cable is mainly by cable conductor and rubber cover, along with the variation of service time, rubber cover meeting accelerated ageing, even there will be full of cracks, tensile strength declines rapidly, bearing capacity can progressively be transferred on conductor, and conductor also can be along with the variation accelerated ageing of service time, and tensile strength also can progressively decline, in the course of time the single line in conductor can part rupture, even cause electric polarization reaction, accelerate the aging fracture of local conductor, cause using electrification.
Secondly, Plastic-sheathed Cable crush resistance is poor, is difficult for installing fixing.Because the sheath of Plastic-sheathed Cable has high resiliency, the feature of flexible strong, poor toughness, flexible type while being subject to external force extruding, inner conductor sensitive for damages.
Finally, a little less than the resistance to tension of Plastic-sheathed Cable, when axial force is pullled cable, may there is fracture and open circuit in inner wire harness.
Utility model content
The purpose of this utility model, is to provide a kind of flame retardant cable, by double-deck flame retarding construction is set, the fire retardancy of cable is further promoted, and protection inner conductor is not impaired, overcomes the defect described in background technology.
Above-mentioned purpose, can adopt following technical proposal to realize:
A kind of flame retardant cable, there is at least one conductor synnema, the outsourcing of conductor synnema is established insulating barrier and is formed insulated wire cores, in described flame retardant cable, be provided with at least three described insulated wire cores, outside in insulated wire cores every described is surrounded with inhibiting tape, and in the outside of whole described insulated wire cores, also integral body is surrounded with inhibiting tape, and inhibiting tape is provided with metal linkage armouring outward.
Flame retardant cable as above is also provided with sheath between described inhibiting tape and armouring.
Flame retardant cable as above is provided with flexible reinforcement between described armouring and sheath.
Flame retardant cable as above, described flexible reinforcement extends along the direction that is parallel to described cable axis, and arranges at least two in the circumferentially even compartment of terrain of described cable.
Flame retardant cable as above, described sheath is arranged with the conduit in order to accommodating described reinforcement at outer surface.
Flame retardant cable as above, described reinforcement is flat flexible knitting band.
Flame retardant cable as above, the material of described flexible knitting band is almag Huo Lv Baogang.
Flame retardant cable as above, the material of described insulating barrier is polyvinyl chloride elastomer.
Flame retardant cable as above, described conductor synnema is copper cladding aluminum conductor.
Flame retardant cable as above, the material of described sheath is polyvinyl chloride elastomer.
The cable insulation and the sheath material that utilize polyvinyl chloride elastomer of the present utility model to make, its density is little, far below traditional rubber sheath insulated sheath material, has not only reduced integrated cost and has also significantly alleviated finished weight, gives to install and use and has brought convenience.
In material of the present utility model, (degree of polymerization is preferably at molecular weight more than 2000 to have adopted polychloroethylene with high polymerization degree elastomer, be preferably more than 2500), it has than superior physical and mechanical properties and the electric property of common polyvinyl chloride (degree of polymerization is generally below 1500).Polyvinyl chloride elastomer of the present utility model replaces rubber for soft electric wire cable and sheath material, has than the good ageing-resistant performance of rubber and electrical property.Property indices all meets < < soft PVC plastic for electric wire and cable > > GB/T8815-2008 standard-required.And environmental-protecting performance meets limiting the quantity of of poisonous and harmful substance in China < < electronics and IT products and requires the requirement of > > SJ/T11363-2006 and European RoSH index 2011/65/EU standard.This product resource is extensive, cheap and easy to get, production process environmental protection, and integrated cost is low.
Comprehensive, by above technical scheme, advantage and disadvantage of the present utility model is:
1. cable of the present utility model is not only surrounded with inhibiting tape outward in every a branch of insulated wire cores, reached relatively independent fire-retardant object between insulated wire cores, also be surrounded with to the external overall after the whole insulated wire cores of wrapped inhibiting tape (wire harness) twisted synthesizing cables inhibiting tape, thus, form the wrapped flame retarding construction of bilayer of minute flame-resistant insulation and total flame-resistant insulation, simultaneously, sheathed structure form and the position of traditional cable have been changed, metal linkage armouring is located at outside sheath, externally formed metal flame-retardant layer, both protected sheath, reached again flame retardant effect, more strengthened the fire resistance of cable, and with inhibiting tape, replaced traditional twining package tape, had the advantages that fire resistance is strong, be beneficial to conductor cores heat radiation.
2. the utility model, by flexible reinforcement is set, makes the tensile strength of cable higher, when stretched by axial force, is not easy to be pulled off, and has protected internal structure, provides cable better physical characteristic.
The utility model in sheath setting the conduit in order to accommodating flexible reinforcement, avoid causing cable surface uneven because reinforcement is set, better cable planarization can better be attached on sheath armouring, avoids the friction damage causing because of space.
4. the utility model replaces copper conductor to reduce own wt with the copper cladding aluminum conductor of high conductivity, compare with the copper core cable of constructed index half that copper cladding aluminum conductor weight is about copper conductor, copper-coated aluminum complex lead cable is cost-saved more than 1/4, has alleviated weight, has saved cost.
5. the utility model is used polyvinyl chloride elastomer as the material of insulating barrier and/or sheath, replaces existing rubber insulation material, has reduced insulating material cost.
6. the utility model adds chain armouring outward at sheath, has improved the anti-extrusion performance of cable, has strengthened the protection to cable, and that has improved cable can stationarity.
Accompanying drawing explanation
For making the purpose of this utility model, technological means and technique effect have more complete and clearly disclose, be below elaborated, and see also accompanying drawing and parts label.
Fig. 1 is that figure is partly cutd open in the side-looking of cable of the present utility model;
Fig. 2 is the cross section view of A-A line in Fig. 1.
Embodiment
Refer to shown in Fig. 1 and Fig. 2, the utility model provides a kind of flame retardant cable 100, there is at least one conductor synnema 1, 1 outsourcing of conductor synnema is established insulating barrier 2 and stranding, form insulated wire cores, in described flame retardant cable 100, be provided with at least three described insulated wire cores, in the outside of insulated wire cores every described, be surrounded with inhibiting tape 9, reached relatively independent fire-retardant object between insulated wire cores, and also integral body is surrounded with inhibiting tape 6 in the outside of whole described insulated wire cores, be between whole insulated wire cores after twisted synthesizing cable, externally integral body is surrounded with inhibiting tape 6, thereby make described flame retardant cable 100 form the wrapped flame retarding construction of bilayer with a minute flame-resistant insulation (inhibiting tape 9) and total flame-resistant insulation (inhibiting tape 6), in addition, the outer metal linkage armouring 4 that is provided with of inhibiting tape 6.
For further improving cable intensity, can between armouring 4 and inhibiting tape 6, be provided with sheath 3, between described chain armouring 4 and sheath 3, be provided with flexible reinforcement 5.
Preferably, flexible reinforcement 5 extends along the direction that is parallel to described cable 100 axis, and arranges at least two in the circumferentially even compartment of terrain of described cable 100.Two reinforcements 5 shown in Fig. 2.
Preferably, described sheath 3 is arranged with the conduit in order to accommodating described reinforcement 5 at outer surface, as shown in Figure 2.Certainly, for reaching effect same, also can this conduit be set at chain armouring 4 inwalls, also or the conduit of half degree of depth is respectively set at chain armouring 4 inwalls and reinforcement 5 outer walls.
Preferably, described reinforcement 5 is flat flexible knitting band.The material of flexible knitting band can be almag Huo Lv Baogang.
In the selection of material, the material of described insulating barrier 2 can be polychloroethylene with high polymerization degree elastomer; Described conductor synnema 1 can be copper cladding aluminum conductor; The material of described sheath 3 also can be polychloroethylene with high polymerization degree elastomer, and the elastomeric degree of polymerization of described polyvinyl chloride is at molecular weight more than 2000, preferably more than 2500.In addition, chain armouring can be selected light aluminum alloy material.
With the chain sheathed structure of light aluminum alloy band, replace rubber cover to reduce own wt, weight is about 1/2 of rubber cover, and cost is about 1/2 of rubber cover.Alleviate weight, saved cost, improved fire resistance.
The utility model that above embodiment forms, its production technology is as follows:
Copper cover aluminum single line is twisted into 16mm on strand winder
2and 6mm
2conductor synnema, by plastic extruding machine, be extruded on conductor synnema polychloroethylene with high polymerization degree is elastic body insulated, form insulated wire cores, add appropriate filling tape by cabler by 5 insulated wire cores Cheng Yuan, by the wrapped inhibiting tape of winding machine, be formed into cable core, then becoming cable core to extrude sheath outward, at jacket outer surface, embed flexible knitting band, finally by chain armoring machine, light aluminum alloy band armouring is formed to finished cable at sheath and flexible knitting band outside.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, the common variation that those skilled in the art carries out within the scope of technical solutions of the utility model and replacement all should be included in protection range of the present utility model.
Claims (10)
1. a flame retardant cable, it is characterized in that, there is at least one conductor synnema, the outsourcing of conductor synnema is established insulating barrier and is formed insulated wire cores, in described flame retardant cable, be provided with at least three described insulated wire cores, outside in insulated wire cores every described is surrounded with inhibiting tape, and in the outside of whole described insulated wire cores also integral body be surrounded with inhibiting tape, inhibiting tape is provided with metal linkage armouring outward.
2. flame retardant cable according to claim 1, is characterized in that, is also provided with sheath between described inhibiting tape and armouring.
3. flame retardant cable according to claim 2, is characterized in that, is provided with flexible reinforcement between described armouring and sheath.
4. flame retardant cable according to claim 3, is characterized in that, described flexible reinforcement extends along the direction that is parallel to described cable axis, and arranges at least two in the circumferentially even compartment of terrain of described cable.
5. flame retardant cable according to claim 4, is characterized in that, described sheath is arranged with the conduit in order to accommodating described reinforcement at outer surface.
6. flame retardant cable according to claim 3, is characterized in that, described reinforcement is flat flexible knitting band.
7. flame retardant cable according to claim 6, is characterized in that, the material of described flexible knitting band is almag Huo Lv Baogang.
8. according to the flame retardant cable described in claim 1-7 any one, it is characterized in that, the material of described insulating barrier is polyvinyl chloride elastomer.
9. according to the flame retardant cable described in claim 1-7 any one, it is characterized in that, described conductor synnema is copper cladding aluminum conductor.
10. according to the flame retardant cable described in claim 2-7 any one, it is characterized in that, the material of described sheath is polyvinyl chloride elastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160939.XU CN203850030U (en) | 2014-04-03 | 2014-04-03 | Flame-retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160939.XU CN203850030U (en) | 2014-04-03 | 2014-04-03 | Flame-retardant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850030U true CN203850030U (en) | 2014-09-24 |
Family
ID=51563015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420160939.XU Expired - Lifetime CN203850030U (en) | 2014-04-03 | 2014-04-03 | Flame-retardant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850030U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653191A (en) * | 2016-12-19 | 2017-05-10 | 南京全信传输科技股份有限公司 | Longitudinal water-tight and air-tight cable and preparation method thereof |
| CN109679359A (en) * | 2018-12-11 | 2019-04-26 | 常丰线缆有限公司 | A kind of super flame retardant cable and preparation method thereof |
-
2014
- 2014-04-03 CN CN201420160939.XU patent/CN203850030U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653191A (en) * | 2016-12-19 | 2017-05-10 | 南京全信传输科技股份有限公司 | Longitudinal water-tight and air-tight cable and preparation method thereof |
| CN106653191B (en) * | 2016-12-19 | 2018-09-21 | 南京全信传输科技股份有限公司 | A kind of direction waterproof pressurizing cable and preparation method thereof |
| CN109679359A (en) * | 2018-12-11 | 2019-04-26 | 常丰线缆有限公司 | A kind of super flame retardant cable and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |
|
| CX01 | Expiry of patent term |