CN208834795U - Polyvinyl chloride cable - Google Patents
Polyvinyl chloride cable Download PDFInfo
- Publication number
- CN208834795U CN208834795U CN201821662924.8U CN201821662924U CN208834795U CN 208834795 U CN208834795 U CN 208834795U CN 201821662924 U CN201821662924 U CN 201821662924U CN 208834795 U CN208834795 U CN 208834795U
- Authority
- CN
- China
- Prior art keywords
- layer
- polyvinyl chloride
- cable
- resistant filler
- mica belt
- 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 - Fee Related
Links
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 26
- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 26
- 239000010445 mica Substances 0.000 claims abstract description 25
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 22
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000000806 elastomer Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000012946 outsourcing Methods 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 abstract description 8
- 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 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a kind of polyvinyl chloride cables, including three mutually twisted cores for forming cable core, each core includes at least two mutually twisted line conductors and the first mica belt and the first insulating layer that are successively wrapped in stranded line conductor periphery from inside to outside, and the first flame resistant filler layer is filled between the first mica belt and line conductor；Cable further includes the second mica belt for being successively wrapped in cable core periphery from inside to outside, shielding jacket layer and second insulating layer, and the second flame resistant filler layer is filled between the second mica belt and cable core, and second insulating layer is polyvinyl chloride insulation layer.That is cable mica belt and flame resistant filler layer that twin-stage is integrally formed, utilize the high temperature resistant of mica belt, flame resistance energy, with the flame retardant property collective effect of flame resistant filler layer, the fire resisting and flame retardant property of cable entirety are greatly improved, so that the safety that cable uses greatly improves.
Description
Technical field
The utility model relates to technical field of cable, in particular to a kind of polyvinyl chloride cable.
Background technique
Wires and cables industry is the important mating industry of economic construction of China, is widely used in each neck of national economy
Domain.By use scope, design feature and performance requirement etc., wire and cable is segmented into several kinds, polyvinyl chloride cable
It is one of.Polyvinyl chloride cable mainly lay indoors, in tunnel and pipeline, can also buried-pipe laying.It is existing general
Logical PVC insulated power cable, is mainly made of restrictive coating, conductor and flame retardant coating, using shielded layer to the anti-of electromagnetic wave
It penetrates, absorb to realize and prevent external electromagnetic interference from entering cable, while preventing internal electromagnetic signal from going out to interfere other equipment, so
And the cable fire performance of the prior art is bad, outer protective sleeve is easy to damage, once fire occurs, can not play preferable fire-retardant
Effect, and be detrimental to health in halogen corrosive gas can be released when burning certainly and entire power supply circuit is caused seriously
Damage.
Utility model content
In view of this, the present invention provides a kind of polyvinyl chloride cables, to solve to be remembered in above-mentioned background technique
The technical problem that the fire resistance of load is bad, flame retardant effect is bad.
The polyvinyl chloride cable of the utility model, including three mutually twisted cores for forming cable core, each line
Core includes at least two mutually twisted line conductors and the first cloud for being successively wrapped in stranded line conductor periphery from inside to outside
Master tape layer and the first insulating layer are filled with the first flame resistant filler layer between the first mica belt and line conductor；
Polyvinyl chloride cable further includes the second mica belt for being successively wrapped in cable core periphery from inside to outside, shielding
Jacket layer and second insulating layer are filled with the second flame resistant filler layer between the second mica belt and cable core, second insulating layer is poly-
Vinyl chloride insulation layer.
Further, the first insulating layer is polypropylene insulation layer.
Further, between the second mica belt and cable core and it is located in the second flame resistant filler layer and also fills up and be provided with
At least one elastomer.
Further, the first flame resistant filler layer and the second flame resistant filler layer are respectively combustion-proof glass fiber or halogen-free flameproof braiding
Rope.
Further, elastomer is made of thermoplastic polyurethane material.
Further, also outsourcing is provided with external sheath layer outside second insulating layer.
Further, the air hole axially extended is provided on the side wall of external sheath layer.
The utility model has the beneficial effects that twin-stage is integrally formed in the polyvinyl chloride cable of the utility model, i.e. cable
Mica belt and flame resistant filler layer, the flame retardant property using the high temperature resistant of mica belt, flame resistance energy, with flame resistant filler layer
Collective effect greatly improves the fire resisting and flame retardant property of cable entirety, so that the safety that cable uses greatly improves, and this reality
Simple with the cable overall structure under novel, processing technology is easy to accomplish, and manufacturing cost is relatively low, has preferable city
Field generalization.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is the utility model overall structure diagram.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model carries out the technical scheme in the embodiment of the utility model
Clear, complete description, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining relative positional relationship, motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if
When the particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand
For its relative importance of indication or suggestion or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the technical side between each embodiment
Case can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution
Conflicting or cannot achieve when occur will be understood that the combination of this technical solution is not present, also not in the requires of the utility model
Protection scope in.
The utility model proposes a kind of polyvinyl chloride cables.
Referring to Fig.1, Fig. 1 is the utility model overall structure diagram, as shown in the figure: the polyvinyl chloride insulation of the present embodiment
Cable, including three mutually twisted cores 1 for forming cable core, each core 1 includes at least two mutually twisted line conductors 2
It is successively wrapped in the first mica belt 3 and the first insulating layer 4 of stranded 2 periphery of line conductor, the first mica from inside to outside
The first flame resistant filler layer 5 is filled between belt 3 and line conductor 2；Polyvinyl chloride cable further includes successively wrapping up from inside to outside
The second mica belt 6, shielding jacket layer 7 and second insulating layer 8 in cable core periphery, between the second mica belt 6 and cable core
Filled with the second flame resistant filler layer 11, second insulating layer 8 is polyvinyl chloride insulation layer.Wherein, the first flame resistant filler layer 5 and second
Flame resistant filler layer 11 is respectively combustion-proof glass fiber or halogen-free flameproof kernmantle.First insulating layer 4 is polypropylene insulation layer.?
It also fills up between two mica belts 6 and cable core and in the second flame resistant filler layer 11 and is provided at least one elastomer 12,
Elastomer 12 is made of thermoplastic polyurethane material.In addition, also outsourcing is provided with external sheath layer 9, oversheath outside second insulating layer 8
The air hole 10 axially extended is provided on the side wall of layer 9.
That is, the cable core of cable includes three mutually twisted cores 1 altogether, each core 1 is by least two line conductors, 2 phase
Mutually it is twisted, due to being twisted, either every line conductor 2 or every core 1 are all into spiral winding state,
When cable bend, the frictional force that every core 1 or line conductor 2 are subject to is smaller than the resistance that the bending of pencil of parallel lines single line generates to be obtained
It is more；And first insulating layer 4 be polypropylene insulation layer, utilize the stretching resistance of polypropylene material, the property such as strength is high, is not easy to pull apart
The features such as energy improves the stretching resistance of cable entirety, and has high-frequency insulation performance good, and breakdown voltage is high.In addition, in each core
1 the first mica belt 3 of periphery setting, in the second mica belt 6 of periphery setting of cable core, and two mica belts are fire resisting
Mica tape layer forms the effect of two-stage high temperature resistant, with two-stage flame resistant filler layer collective effect, plays the role of fire resistant flame retardant；
In addition, shielding jacket layer 7 can be fluororesin restrictive coating for soft copper band lapped shielding layer, external sheath layer.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (7)
1. a kind of polyvinyl chloride cable, it is characterised in that: including three mutually twisted cores for forming cable core, each line
Core includes at least two mutually twisted line conductors and the first cloud for being successively wrapped in stranded line conductor periphery from inside to outside
Master tape layer and the first insulating layer are filled with the first flame resistant filler layer between the first mica belt and line conductor；
The polyvinyl chloride cable further includes the second mica belt for being successively wrapped in cable core periphery from inside to outside, shielding
Jacket layer and second insulating layer are filled with the second flame resistant filler layer between the second mica belt and cable core, described second absolutely
Edge layer is polyvinyl chloride insulation layer.
2. polyvinyl chloride cable according to claim 1, it is characterised in that: first insulating layer is that polypropylene is exhausted
Edge layer.
3. polyvinyl chloride cable according to claim 1, it is characterised in that: in the second mica belt and cable
It also fills up between core and in the second flame resistant filler layer and is provided at least one elastomer.
4. polyvinyl chloride cable according to claim 1, it is characterised in that: the first flame resistant filler layer and described
Second flame resistant filler layer is respectively combustion-proof glass fiber or halogen-free flameproof kernmantle.
5. polyvinyl chloride cable according to claim 3, it is characterised in that: the elastomer is by thermoplastic polyurethane
Material is made.
6. polyvinyl chloride cable described in -5 any claims according to claim 1, it is characterised in that: described second absolutely
Also outsourcing is provided with external sheath layer outside edge layer.
7. polyvinyl chloride cable according to claim 6, it is characterised in that: be arranged on the side wall of the external sheath layer
There is the air hole axially extended.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821662924.8U CN208834795U (en) | 2018-10-15 | 2018-10-15 | Polyvinyl chloride cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821662924.8U CN208834795U (en) | 2018-10-15 | 2018-10-15 | Polyvinyl chloride cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208834795U true CN208834795U (en) | 2019-05-07 |
Family
ID=66318123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821662924.8U Expired - Fee Related CN208834795U (en) | 2018-10-15 | 2018-10-15 | Polyvinyl chloride cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208834795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111477385A (en) * | 2020-04-17 | 2020-07-31 | 黄晓祥 | Cable with good pressure resistance |
-
2018
- 2018-10-15 CN CN201821662924.8U patent/CN208834795U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111477385A (en) * | 2020-04-17 | 2020-07-31 | 黄晓祥 | Cable with good pressure resistance |
| CN111477385B (en) * | 2020-04-17 | 2021-11-16 | 湖南三湘电线电缆有限责任公司 | Cable with good pressure resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 |