CN106935326A - Multicore cable is pressed in fire prevention - Google Patents
Multicore cable is pressed in fire prevention Download PDFInfo
- Publication number
- CN106935326A CN106935326A CN201710204075.5A CN201710204075A CN106935326A CN 106935326 A CN106935326 A CN 106935326A CN 201710204075 A CN201710204075 A CN 201710204075A CN 106935326 A CN106935326 A CN 106935326A
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- CN
- China
- Prior art keywords
- coated
- combustion
- glass fiber
- pressed
- fire prevention
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Landscapes
- Insulated Conductors (AREA)
Abstract
Multicore cable is pressed in one kind fire prevention, including cable core, the combustion-proof glass fiber band that each cable core is coated in it and the ground floor fireproof sheath that is coated on outside combustion-proof glass fiber band；Include a conductor and the interior screen, insulating barrier and the external screen that are sequentially coated on from inside to outside on conductor per cable core.External screen is coated with buffering semi-conductive tape, and winding SZ shapes outside buffering semi-conductive tape twists copper wire；Additionally, ground floor fireproof sheath is coated with second layer fireproof sheath, second layer fireproof sheath is externally provided with the second combustion-proof glass fiber band.Beneficial effect is：Buffering semi-conductive tape set by the present invention is a kind of high temperature resistant buffering semi-conductive tape, play an expanded by heating and buffer heat-insulated effect, and buffer and copper strips is replaced using special process winding SZ shape strand copper wires outside semi-conductive tape, can ensure that free shrink can be cooled down with the expansion of inner layer material when being heated, prevent from causing the impression of insulated wire cores.The present invention can well solve the shortcoming of existing cable product.
Description
Technical field
The present invention relates to a kind of construction of cable technology, and in particular to press multicore cable technology in one kind fire prevention.
Background technology
Application number 201410499068.9, Authorization Notice No. CN 104240832 B are entitled：A kind of " fire-retardant fireproof
The patent of invention file of cable " discloses a kind of cable：" it be by four insulated wires, by insulated wire envelope it is plastic-aluminum combined
Band, the braiding layer outside aluminium-plastic tape, extrusion molding are coated on inner sheath outside braiding layer, the armouring being coated on outside inner sheath
What the oversheath that layer, extrusion molding are coated on outside armor was constituted；It is characterized in that the every insulated wire by conductor, envelope and lead
The polyethylene layer of body, extrusion molding are coated on the ceramic insulating barrier composition outside polyethylene layer；Drainage heart yearn is located at four
In the internal clearance that insulated wire is formed, aluminium-plastic tape envelopes drainage heart yearn with insulated wire simultaneously；The conductor is led for 1 class copper
Body or 1 class aluminium conductor, the sectional area of conductor is 1mm2Or 1.5mm2；The thickness of the polyethylene layer be 0.5mm~
0.8mm；The thickness of the ceramic insulating barrier is 0.2mm~0.4mm；The ceramic insulating barrier is to count by weight, by
The material that following raw material and content are constituted：Ethene-α-propylene copolymer：100 parts, fineness be white clouds below 100 mesh
It is female：150~250 parts, fineness less than 300 mesh silica：50~80 parts, Tissuemat E：1~3 part, polyethylene：100~
200 parts, antioxidant 1010：0.3~0.8 part, carbon black：30~50 parts.
The problem of presence is：Every insulated wire is coated on poly- second by conductor, the polyethylene layer for enveloping conductor, extrusion molding
Ceramic insulating barrier composition outside alkene insulating barrier, the outer wrapped aluminium-plastic tape of insulated wire cores, insulation expansion buffering after not being heated
Layer, so easily causes expansion after insulated wire cores are heated and causes insulation impression to damage.
The content of the invention
Main inventive purpose of the invention, is to provide a kind of buffering in the wrapped appropriate high temperature resistant in insulated wire cores surface and partly leads
Electric band, high temperature resistant buffering semi-conductive tape plays an expanded by heating and buffers heat-insulated effect, so as to prevent cable from using
There is impression in insulated wire cores in journey.
Technical scheme used by the present invention is：Multicore cable is pressed in one kind fire prevention, including cable core, each cable core is coated on it
Interior combustion-proof glass fiber band and the ground floor fireproof sheath being coated on outside combustion-proof glass fiber band；Include per cable core
One conductor and the interior screen being sequentially coated on from inside to outside on conductor, insulating barrier and external screen.External screen is coated with buffering semi-conductive tape,
SZ shapes are wound outside buffering semi-conductive tape twist copper wire；Additionally, ground floor fireproof sheath is coated with second layer fireproof shield
Set, second layer fireproof sheath is externally provided with the second combustion-proof glass fiber band.
Multicore cable described here, refers to cables more than two cores, is primarily referred to as three-core cable.In addition, the second layer
Fireproof sheath and ground floor fireproof sheath substep are manufactured, and the flexibility of second layer fireproof sheath is generally higher than first
Layer fireproof sheath, combustion-proof glass fiber band is then conducive to improving the security of product.In addition, the buffering set by the present invention
Semi-conductive tape is that a kind of high temperature resistant buffers semi-conductive tape, plays an expanded by heating and buffers heat-insulated effect, and buffers semiconductive
Copper wire is twisted with outer use special process winding SZ shapes and replace copper strips, it is ensured that can be cooled down with the expansion of inner layer material when being heated
Free shrink, prevents from causing the impression of insulated wire cores.The present invention can well solve the shortcoming of existing cable product.
Preferably, thickness of the thickness of second layer fireproof sheath less than ground floor fireproof sheath.This is preferably
Scheme, is conducive to saving material.
Preferably, the second combustion-proof glass fiber band is coated with galvanized steel strip.This preferred scheme, galvanized steel strip is played
Protection pressure-bearing and iris action, are conducive to improving the intensity of pressure multicore cable in fire prevention, and then improve safety in utilization and life-span.
Preferably, galvanized steel strip is coated with the 3rd combustion-proof glass fiber band.This preferred scheme, the 3rd fireproof glass
Fiber band can intercept, reduce air into cable, and then reduce the possibility of burning, so as in being conducive to improving and preventing fires
Press the safety in utilization of multicore cable.
Preferably, the outermost layer that multicore cable is pressed in fire prevention is low-smoke and halogen-free flame retardant polyolefin jacket layer.This preferred side
Case, is conducive to improving the safety in utilization of pressure multicore cable in fire prevention.
Preferably, being filled with fire resisting heat-conducting filler between combustion-proof glass fiber band and cable core.This preferred scheme, has
The relative position of radiating and cooling and each cable core of holding beneficial to cable core.
In sum, the beneficial effects of the invention are as follows：Buffering semi-conductive tape set by the present invention is a kind of high temperature resistant buffering
Semi-conductive tape, plays an expanded by heating and buffers heat-insulated effect, and to buffer and wind SZ shapes using special process outside semi-conductive tape
Twist copper wire and replace copper strips, it is ensured that can cool down free shrink with the expansion of inner layer material when being heated, prevent from causing insulated wire
The impression of core.The present invention can well solve the shortcoming of existing cable product.
Brief description of the drawings
Fig. 1：Structural representation of the invention；
Fig. 2：SZ shapes are wound outside buffering semi-conductive tape twist copper wire structural representation；
In figure：Conductor 1, interior screen 2, insulating barrier 3, external screen 4, high temperature resistant buffering semi-conductive tape 5, SZ shapes twist copper wire 6, and fire resisting heat conduction is filled out
Fill thing 7, combustion-proof glass fiber band 8, ground floor ceramic fireproof polyolefin jacket 9, second layer ceramic fireproof
Polyolefin jacket 10, the second combustion-proof glass fiber band 11, galvanized steel strip 12, the 3rd combustion-proof glass fiber band 13, low cigarette without
The flame-retardant polyolefin sheathed layer 14 of halogen.
Specific embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
As shown in Figure 1 and Figure 2, the present invention includes three cable cores, the combustion-proof glass fiber bands each cable core being coated in it
8 and the ground floor ceramic fireproof polyolefin jacket 9 that is coated on outside combustion-proof glass fiber band 8；Led including one per cable core
Body 1 and the interior screen 2 being sequentially coated on from inside to outside on conductor 1, insulating barrier 3 and external screen 4.External screen 4 is coated with high temperature resistant buffering
Semi-conductive tape 5, the outer winding SZ shapes of high temperature resistant buffering semi-conductive tape 5 twist copper wire 6；Additionally, ground floor ceramic fireproof polyene
Hydrocarbon sheath 9 is coated with second layer ceramic fireproof polyolefin jacket 10, second layer ceramic fireproof polyolefin shield
Set 10 is externally provided with the second combustion-proof glass fiber band 11.Wherein, the thickness of second layer ceramic fireproof polyolefin jacket 10
Less than the thickness of ground floor fireproof sheath 9, the second combustion-proof glass fiber band 11 is coated with galvanized steel strip 12, galvanized steel
Band 12 is coated with the 3rd combustion-proof glass fiber band 13.Preferably, the outermost layer that multicore cable is pressed in present invention fire prevention is
Low-smoke and halogen-free flame retardant polyolefin jacket layer 14, is filled with fire resisting heat-conducting filler 7 between combustion-proof glass fiber band 8 and cable core.
Preferably, the present invention manufactures outer winding SZ shapes strand copper wire using the tubular type storage line machine of special designs during manufacture,
The tubular type storage line machine of the special designs is made up of the distributor plate storage line pipe fixed and the distributor plate for rotating, during work storage line pipe with
Both distributor plates generally rotate 2~8 turns and rotate backward again later, when core leaves storage line with alternating direction synchronous axial system
Guan Shi, is formed the strand copper wire layer of SZ strands in insulated wire cores.In addition, ground floor ceramic fireproof polyolefin jacket
Thickness be 3.0mm-4.0mm, play a part of fire prevention, heat-insulated, oxygen barrier, a cooling layer, and second layer ceramic prevents fires resistance to
The thickness of fiery polyolefin jacket 10 is 1.5mm-2mm, and pliability is better than ceramic fireproof polyolefin jacket.Insulated wire cores
The wrapped appropriate high temperature resistant buffering semi-conductive tape 5 in surface, then play an expanded by heating and buffer heat-insulated effect.
The specific embodiment of the above is only the present invention preferably implementation method, is not limited with this of the invention specific
Practical range.In fact, some equivalent changes can also be made according to shape of the present invention, structure and purpose of design.
Therefore, some equivalence changes done by all shapes in accordance with the present invention, structure and purpose of design ought to be all contained in this
In the protection domain of invention, namely these equivalence changes should all be subject to protection of the invention.
Claims (6)
1. multicore cable, including cable core, the combustion-proof glass fiber band each cable core being coated in it are pressed in a kind of fire prevention（8）And
It is coated on combustion-proof glass fiber band（8）Outer ground floor fireproof sheath（9）；Include a conductor per cable core（1）And by interior
To being sequentially coated on conductor outward（1）On interior screen（2）, insulating barrier（3）And external screen（4）；It is characterized in that：External screen（4）It is coated with
Buffering semi-conductive tape（5）, buffer semi-conductive tape（5）Outer winding SZ shapes twist copper wire（6）；Additionally, ground floor fireproof sheath（9）
It is coated with second layer fireproof sheath（10）, second layer fireproof sheath（10）It is externally provided with the second combustion-proof glass fiber bag
Band（11）.
2. multicore cable is pressed in fire prevention according to claim 1, it is characterized in that：Second layer fireproof sheath（10）Thickness
Degree is less than ground floor fireproof sheath（9）Thickness.
3. multicore cable is pressed in fire prevention according to claim 1, it is characterized in that：Second combustion-proof glass fiber band（11）Outward
It is coated with galvanized steel strip（12）.
4. multicore cable is pressed in fire prevention according to claim 3, it is characterized in that：Galvanized steel strip（12）It is coated with the 3rd resistance
Combustion glass fibre band（13）.
5. multicore cable is pressed in the fire prevention according to claim 1-4 any one, it is characterized in that：Multicore cable is pressed in fire prevention
Outermost layer for low-smoke and halogen-free flame retardant polyolefin jacket layer（14.
6. multicore cable is pressed in the fire prevention according to claim 1-4 any one, it is characterized in that：Combustion-proof glass fiber band
（8）Fire resisting heat-conducting filler is filled with and cable core between（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204075.5A CN106935326A (en) | 2017-03-30 | 2017-03-30 | Multicore cable is pressed in fire prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204075.5A CN106935326A (en) | 2017-03-30 | 2017-03-30 | Multicore cable is pressed in fire prevention |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106935326A true CN106935326A (en) | 2017-07-07 |
Family
ID=59425331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710204075.5A Pending CN106935326A (en) | 2017-03-30 | 2017-03-30 | Multicore cable is pressed in fire prevention |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106935326A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492924A (en) * | 2017-12-25 | 2018-09-04 | 飞洲集团有限公司 | A kind of expandable flame retardant type power cable |
| CN113035432A (en) * | 2021-03-09 | 2021-06-25 | 福建富鑫达电子有限公司 | Communication cable with good flame retardant property and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202948763U (en) * | 2012-11-19 | 2013-05-22 | 四川明星电缆股份有限公司 | Safe fire-resistant medium and high voltage cable |
| CN203521025U (en) * | 2013-10-22 | 2014-04-02 | 郑州电缆有限公司 | Middle voltage fireproof cable |
| CN205080937U (en) * | 2015-10-20 | 2016-03-09 | 江西电缆有限责任公司 | Single -phase cable structure of electric Railway 27. 5kV |
| CN205609256U (en) * | 2016-04-29 | 2016-09-28 | 浙江万马股份有限公司 | Fire -resistant polyolefin environment -friendly three -core cables of new ceramic fire prevention |
-
2017
- 2017-03-30 CN CN201710204075.5A patent/CN106935326A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202948763U (en) * | 2012-11-19 | 2013-05-22 | 四川明星电缆股份有限公司 | Safe fire-resistant medium and high voltage cable |
| CN203521025U (en) * | 2013-10-22 | 2014-04-02 | 郑州电缆有限公司 | Middle voltage fireproof cable |
| CN205080937U (en) * | 2015-10-20 | 2016-03-09 | 江西电缆有限责任公司 | Single -phase cable structure of electric Railway 27. 5kV |
| CN205609256U (en) * | 2016-04-29 | 2016-09-28 | 浙江万马股份有限公司 | Fire -resistant polyolefin environment -friendly three -core cables of new ceramic fire prevention |
Non-Patent Citations (1)
| Title |
|---|
| RAINER DUEWELHEUKE 等: "电线绞制和成缆的三种SZ方法的比较", 《电线电缆》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108492924A (en) * | 2017-12-25 | 2018-09-04 | 飞洲集团有限公司 | A kind of expandable flame retardant type power cable |
| CN108492924B (en) * | 2017-12-25 | 2020-08-04 | 飞洲集团有限公司 | Expansion flame-retardant power cable |
| CN113035432A (en) * | 2021-03-09 | 2021-06-25 | 福建富鑫达电子有限公司 | Communication cable with good flame retardant property and manufacturing method thereof |
| CN113035432B (en) * | 2021-03-09 | 2022-08-12 | 福建富鑫达电子有限公司 | Communication cable with good flame retardant property and manufacturing method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |
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| RJ01 | Rejection of invention patent application after publication |