CN203941752U - The fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation - Google Patents
The fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation Download PDFInfo
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- CN203941752U CN203941752U CN201420348655.3U CN201420348655U CN203941752U CN 203941752 U CN203941752 U CN 203941752U CN 201420348655 U CN201420348655 U CN 201420348655U CN 203941752 U CN203941752 U CN 203941752U
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- polyvinyl chloride
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- chloride insulation
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Abstract
The utility model discloses the fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation in field of cables, comprise four center conductors, every center conductor comprises two stranded cores, the periphery of two cores is surrounded with inorganic insulation layer, the periphery of four center conductors is surrounded with fireprotection layer, between center conductor and fireprotection layer, be filled with oxygen barrier layer, the periphery of fireprotection layer is surrounded with armour, the periphery of armour is coated with polyvinyl chloride insulation sheath, in oxygen barrier layer, run through and be provided with spool, the wrapped mode of the most employing of sheath in the utility model is coated, simplify the manufacturing process of cable, reduce production cost, can be used for being suitable for densely populated recreation ground.
Description
Technical field
The utility model relates to a kind of cable, particularly a kind of twisted-pair feeder.
Background technology
Along with quick, the steady-state growth of national economy, the develop rapidly of urban construction, large quantities of buildings of building various functions, the probability of breaking out of fire is corresponding thus increases, in the occasion of the relatively intensive easy breaking out of fire of population, should adopt high flame retardant fire-type power cable to meet instructions for use.
Because common high flame retardant power cable insulation only adopts inorganic compounding insulating material mica tape overlapping wrapped, mica powder above mica tape easily comes off and causes insulation property and fire protecting performance to decline, the space of filled-type silicon rubber filling cable core is extruded in employing, this operation needs special silicon rubber extrusion equipment just can carry out, metal level adopts vertical bag argon arc welding copper strips, and cost is higher.
Utility model content
The purpose of this utility model is to provide the fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation, strengthens the fire resistant flame retardant performance of cable, simplifies the manufacturing process of cable, reduces costs.
The purpose of this utility model is achieved in that the fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation, comprise four center conductors, every center conductor comprises two stranded cores, the periphery of two cores is coated with inorganic insulation layer, the periphery of four center conductors is coated with fireprotection layer, between described center conductor and fireprotection layer, is filled with oxygen barrier layer, and the periphery of fireprotection layer is coated with armour, the periphery of armour is coated with polyvinyl chloride insulation sheath, in described oxygen barrier layer, runs through and is provided with spool.
This compared with prior art, the beneficial effects of the utility model are, the utility model is by using the wrapped core of inorganic insulation layer, insulation property and the fire resistance of cable are strengthened, fireprotection layer and oxygen barrier layer have further strengthened the fire resistance of cable, the armour of fireprotection layer periphery has strengthened the intensity of cable, polyvinyl chloride insulation sheath has strengthened the insulation property of cable, the wrapped mode of the most employing of sheath in the utility model is coated, the manufacturing process of having simplified cable, has reduced production cost.The utility model can be used for being suitable in densely populated recreation ground, heavy construction, ancient building.
In order further to strengthen the fire resistance of cable, described inorganic insulation layer comprises three stratus master tapes and two-layer ceramic SiClx rubber composite belt, and described three stratus master tapes are overlapping wrapped in core periphery, and two-layer ceramic SiClx rubber composite belt is wrapped in mica tape periphery.Two-layer ceramic SiClx rubber composite belt is wrapped prevents that in mica tape periphery mica tape mica powder from coming off, and plays the effect of protection.
In order further to strengthen the fire protecting performance of cable, described fireprotection layer comprises two-layer ceramic SiClx rubber composite belt and layer of glass band, two-layer ceramic SiClx rubber composite belt is overlapping wrapped in center conductor periphery, and glass fiber tape is wrapped in ceramic silicon rubber composite band periphery.
In order further to strengthen intensity and the insulation property of cable, described armour is by wrapped the forming in two-layer galvanized steel strip gap, and described oxygen barrier layer adopts extrusion type high flame retardant oxygen barrier material to make.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is center conductor enlarged drawing in the utility model.
Wherein, 1 polyvinyl chloride insulation sheath, 2 oxygen barrier layers, 3 center conductors, 3a core, 3b mica tape, 3c ceramic silicon rubber composite band, 4 galvanized steel strips, 5 glass fiber tapes, 6 ceramic silicon rubber composite band, 7 spools.
Embodiment
The fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation as shown in Figure 1, comprise four center conductors 3, every center conductor 3 comprises two stranded core 3a, the overlapping three stratus master tape 3b that are surrounded with of periphery of two core 3a, the periphery of mica tape 3b is surrounded with two-layer ceramic SiClx rubber composite belt 3c, the periphery of four center conductors 3 is surrounded with two-layer ceramic SiClx rubber composite belt 6 and layer of glass band 5 successively, between described center conductor 3 and ceramic silicon rubber composite band 6, be filled with oxygen barrier layer 2, oxygen barrier layer 2 adopts extrusion type high flame retardant oxygen barrier material to make, the periphery of glass fiber tape 5 is surrounded with two-layer galvanized steel strip 4, the periphery of galvanized steel strip 4 is coated with polyvinyl chloride insulation sheath 1, in oxygen barrier layer 2, run through and be provided with spool 7.
The utility model is by using the wrapped core 3a of inorganic insulation layer, insulation property and the fire resistance of cable are strengthened, oxygen barrier layer 2 has further strengthened the fire resistance of cable, the armour of fireprotection layer periphery has strengthened the intensity of cable, polyvinyl chloride insulation sheath has strengthened the insulation property of cable, the wrapped mode of the most employing of sheath in the utility model is coated, and has simplified the manufacturing process of cable, has reduced production cost.
The utility model is not limited to above-described embodiment; on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection range of the present utility model.
Claims (5)
1. the fire-resistant soft twisted-pair feeder of copper core polyvinyl chloride insulation, it is characterized in that, comprise four center conductors, every center conductor comprises two stranded cores, and the periphery of two cores is surrounded with inorganic insulation layer, and the periphery of four center conductors is surrounded with fireprotection layer, between described center conductor and fireprotection layer, be filled with oxygen barrier layer, the periphery of fireprotection layer is surrounded with armour, and the periphery of armour is coated with polyvinyl chloride insulation sheath, in described oxygen barrier layer, runs through and is provided with spool.
2. the fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation according to claim 1, it is characterized in that, described inorganic insulation layer comprises three stratus master tapes and two-layer ceramic SiClx rubber composite belt, described three stratus master tapes are overlapping wrapped in core periphery, and two-layer ceramic SiClx rubber composite belt is wrapped in mica tape periphery.
3. the fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation according to claim 1 and 2, it is characterized in that, described fireprotection layer comprises two-layer ceramic SiClx rubber composite belt and layer of glass band, two-layer ceramic SiClx rubber composite belt is overlapping wrapped in center conductor periphery, and glass fiber tape is wrapped in ceramic silicon rubber composite band periphery.
4. the fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation according to claim 1 and 2, is characterized in that, described armour is by wrapped the forming in two-layer galvanized steel strip gap.
5. the fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation according to claim 1 and 2, is characterized in that, described oxygen barrier layer adopts extrusion type high flame retardant oxygen barrier material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348655.3U CN203941752U (en) | 2014-06-27 | 2014-06-27 | The fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348655.3U CN203941752U (en) | 2014-06-27 | 2014-06-27 | The fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203941752U true CN203941752U (en) | 2014-11-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420348655.3U Expired - Fee Related CN203941752U (en) | 2014-06-27 | 2014-06-27 | The fire-resistant soft twisted-pair feeder of a kind of copper core polyvinyl chloride insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203941752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107204212A (en) * | 2017-05-31 | 2017-09-26 | 迈特诺（马鞍山）特种电缆有限公司 | A kind of EMUs high fire-retardance fire-resisting cable |
-
2014
- 2014-06-27 CN CN201420348655.3U patent/CN203941752U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107204212A (en) * | 2017-05-31 | 2017-09-26 | 迈特诺（马鞍山）特种电缆有限公司 | A kind of EMUs high fire-retardance fire-resisting 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20200627 |