CN202487231U - Middle-voltage fireproof crosslinking cable - Google Patents
Middle-voltage fireproof crosslinking cable Download PDFInfo
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- CN202487231U CN202487231U CN2011205278829U CN201120527882U CN202487231U CN 202487231 U CN202487231 U CN 202487231U CN 2011205278829 U CN2011205278829 U CN 2011205278829U CN 201120527882 U CN201120527882 U CN 201120527882U CN 202487231 U CN202487231 U CN 202487231U
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- fireproof
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- screen
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Abstract
The utility model relates to a cable, and specially relates to a middle-voltage crosslinking polyethylene insulation fireproof cable. The middle-voltage fireproof crosslinking cable comprises several conductors, insulation shielding layers and an outer protection sleeve. A conductor shield is cladding out of each conductor. The characteristics are that polypropylene gaskets for packing are cladding among the several conductors through an aluminum foil belt, a fireproof layer formed by extrusion of expansion type halogen free refractory material is sleeved between the aluminum foil belt and the external protection sleeve, and an oxygen-barrier layer formed by extrusion of high flame-retardancy LSZH polyolefine is sleeved out of the fireproof layer. According to the utility model, the middle-voltage fireproof crosslinking cable is characterized in that the cable production cost is low, the production process is simple, manufacture is convenient, heat insulation performance is good, etc.
Description
Technical field
The utility model relates to a kind of cable, especially relates to a kind of middle crosslinked polyetylene insulated fire-resisting cable of pressing.
Background technology
As everyone knows; Present fire-resistant low-voltage cable generally adopts the wrapped mica tape of conductor; And middle pressure fire-resisting cable is because voltage is high; Electric field strength is big, can not adopt the structure of the wrapped mica tape of the such conductor of low pressure fire-resisting cable, and the manufacturer that present stage has adopts ceramic silicon rubber as pressing fire-resisting cable to obtain certain effect in the flame retardant coating production.But adopt potteryization silicon rubber to have following defective mostly as the fire-resistant crosslinked cable of flame retardant coating in the market: 1. the cable production cost is high; 2. complex process is high to equipment requirements; 3. heat-proof quality remains further to be improved.
Summary of the invention
The utility model mainly is to the above-mentioned technical problem of existing in prior technology, and a kind of cable low production cost, the super fire-resistant crosslinked cable of technology middle pressure simple, easily manufactured, that heat-proof quality is good are provided.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals: press fire-resistant crosslinked cable in a kind of; Comprise some conductors, insulation screen and oversheath; The conductor skin is coated with conductor screen; It is characterized in that being coated with polypropylene through aluminium foil strip between the described some conductors fills rope; Be arranged with between described aluminium foil strip and the oversheath and adopt the expansion type halogen-free refractory material to extrude the flame retardant coating that forms, flame retardant coating is arranged with outward and adopts high flame retardant low smoke, zero halogen polyolefin to extrude the oxygen barrier layer that forms.The utility model efficiently solves the midium voltage cable fire resistance; Fire resistance is good, and than pressing fire-resisting cable to practice thrift cost in the ceramic silicon rubber, processing technology is simple; Through test cable under 750 ℃～800 ℃ flame temperatures; Burning 90min has very good fire-resistant and anti-flaming function, and the puncture of 10kV alternating voltage 5min empire cloth is tested and applied in the office side that burning back cable bears the GB/T12706-2008 standard code.Adopt the expansion type halogen-free refractory material to extrude as flame retardant coating, under the environment of flame, material can expand rapidly, forms fine and close porous carbon-coating, plays good refractory heat-insulating effect; Flame-retardant layer and oxygen barrier layer play oxygen barrier in burning can effectively suppress burning; The low smoke, zero halogen polyolefin is a kind of environment protection high flame resistance material, has added materials such as magnesia, has very good flame retardant property; The photothermal reflectance rate of aluminium foil adopts aluminium foil can effectively slow down the conduction of heat greater than 90 ℅.Adopt said structure, when cable under flame environment, can be heat insulation rapidly, oxygen barrier, slow down the conduction of heat, effectively protected the insulated wire cores normal power supply.
As preferably, described insulation screen skin is arranged with metal screen layer.Simple in structure, manufacturing cost is cheap relatively.
As preferably, described oxygen barrier layer skin is arranged with steel band.Technology is simple, easily manufactured, heat-proof quality is good.
As preferably, be arranged with crosslinked polyetylene insulated layer between described conductor screen and the insulation screen.Can effectively bring into play fire-resistance property, utilize the performance of the photothermal reflectance rate of aluminium foil greater than 90 ℅, the employing aluminium foil is wrapped effectively to slow down hot conduction as thermal insulation layer, and product material is novel, and structure is novel.
As preferably, described oversheath adopts the manufacturing of low smoke, zero halogen polyolefine material.Heat-proof quality is good.
Therefore, the utlity model has characteristics such as cable low production cost, technology is simple, easily manufactured, heat-proof quality is good.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the utility model.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Embodiment 1:
Shown in Figure of description 1; Press fire-resistant crosslinked cable in a kind of; Comprise three conductors 1, insulation screen 3 and oversheath 4, the conductor skin is coated with between 2, three conductors of conductor screen and is coated with polypropylene filling rope 5 through aluminium foil strip 11; Be arranged with between aluminium foil strip 11 and the oversheath and adopt the expansion type halogen-free refractory material to extrude the flame retardant coating 6 that forms, flame retardant coating is arranged with outward and adopts high flame retardant low smoke, zero halogen polyolefin to extrude the oxygen barrier layer 7 that forms.Insulation screen 3 skins are arranged with metal screen layer 8.Oxygen barrier layer 7 skins are arranged with steel band 9.Be arranged with crosslinked polyetylene insulated layer 10 between conductor screen 2 and the insulation screen 3.Oversheath adopts the manufacturing of low smoke, zero halogen polyolefine material.
The utility model efficiently solves the midium voltage cable fire resistance; Fire resistance is good, and than pressing fire-resisting cable to practice thrift cost in the ceramic silicon rubber, processing technology is simple; Through test cable under 750 ℃～800 ℃ flame temperatures; Burning 90min has very good fire-resistant and anti-flaming function, and the puncture of 10kV alternating voltage 5min empire cloth is tested and applied in the office side that burning back cable bears the GB/T12706-2008 standard code.Adopt the expansion type halogen-free refractory material to extrude as flame retardant coating, under the environment of flame, material can expand rapidly, forms fine and close porous carbon-coating, plays good refractory heat-insulating effect; Flame-retardant layer and oxygen barrier layer play oxygen barrier in burning can effectively suppress burning; The low smoke, zero halogen polyolefin is a kind of environment protection high flame resistance material, has added materials such as magnesia, has very good flame retardant property; The photothermal reflectance rate of aluminium foil adopts aluminium foil can effectively slow down the conduction of heat greater than 90 ℅.Adopt said structure, when cable under flame environment, can be heat insulation rapidly, oxygen barrier, slow down the conduction of heat, effectively protected the insulated wire cores normal power supply.
Should be understood that this embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (5)
1. press fire-resistant crosslinked cable in one kind; Comprise some conductors (1), insulation screen (3) and oversheath (4); The conductor skin is coated with conductor screen (2); It is characterized in that being coated with polypropylene through aluminium foil strip (11) between the described some conductors fills rope (5); Be arranged with between described aluminium foil strip (11) and the oversheath and adopt the expansion type halogen-free refractory material to extrude the flame retardant coating (6) that forms, flame retardant coating is arranged with outward and adopts high flame retardant low smoke, zero halogen polyolefin to extrude the oxygen barrier layer (7) that forms.
2. press fire-resistant crosslinked cable in according to claim 1, it is characterized in that described insulation screen (3) skin is arranged with metal screen layer (8).
3. press fire-resistant crosslinked cable in according to claim 1, it is characterized in that described oxygen barrier layer (7) skin is arranged with steel band (9).
4. according to claim 1 or the 2 or 3 described middle fire-resistant crosslinked cables of pressing, it is characterized in that being arranged with between described conductor screen (2) and the insulation screen (3) crosslinked polyetylene insulated layer (10).
5. according to claim 1 or the 2 or 3 described middle fire-resistant crosslinked cables of pressing, it is characterized in that described oversheath adopts the manufacturing of low smoke, zero halogen polyolefine material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205278829U CN202487231U (en) | 2011-12-16 | 2011-12-16 | Middle-voltage fireproof crosslinking cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205278829U CN202487231U (en) | 2011-12-16 | 2011-12-16 | Middle-voltage fireproof crosslinking cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202487231U true CN202487231U (en) | 2012-10-10 |
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ID=46961635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205278829U Expired - Fee Related CN202487231U (en) | 2011-12-16 | 2011-12-16 | Middle-voltage fireproof crosslinking cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202487231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091741A (en) * | 2020-09-15 | 2020-12-18 | 居盛文 | Crosslinked polyethylene insulated halogen-free low-smoke flame-retardant polyolefin sheath power cable |
-
2011
- 2011-12-16 CN CN2011205278829U patent/CN202487231U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091741A (en) * | 2020-09-15 | 2020-12-18 | 居盛文 | Crosslinked polyethylene insulated halogen-free low-smoke flame-retardant polyolefin sheath power cable |
| CN112091741B (en) * | 2020-09-15 | 2021-06-22 | 居盛文 | Crosslinked polyethylene insulation halogen-free low-smoke flame-retardant polyolefin protective sleeve power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG WANMA CO., LTD. Free format text: FORMER NAME: ZHEJIANG WANMA CABLE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 311305 Ling'an Economic Development Zone, Zhejiang Province, South Ring Road, No. 88, No. Patentee after: ZHEJIANG WANMA CO., LTD. Address before: 311305 Ling'an Economic Development Zone, Zhejiang Province, South Ring Road, No. 88, No. Patentee before: Zhejiang Wanma Cable Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20161216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |