CN107887068A - Pressure shielding flame retardant cable in a kind of isolated form - Google Patents
Pressure shielding flame retardant cable in a kind of isolated form Download PDFInfo
- Publication number
- CN107887068A CN107887068A CN201711201352.3A CN201711201352A CN107887068A CN 107887068 A CN107887068 A CN 107887068A CN 201711201352 A CN201711201352 A CN 201711201352A CN 107887068 A CN107887068 A CN 107887068A
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- CN
- China
- Prior art keywords
- outside
- layer
- coated
- cable
- flame 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.)
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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
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses pressure shielding flame retardant cable in a kind of isolated form, the wire of cable core includes conductor, conductor shield, insulating barrier, insulation screen, metal screen layer, interior separation sleeve successively from inside to outside, lapping layer is coated on outside cable core, outer separation layer is coated on outside lapping layer, oversheath is coated on outside outer separation layer, and restrictive coating is made of flame-retardant sheath material.By pressing shielding flame retardant cable in the isolated form of above-mentioned optimization design, structural design optimization is reasonable, by setting gradually conductor shield, insulating barrier, insulation screen, metal screen layer, interior separation sleeve outside conductor, capability of electromagnetic shielding is greatly improved, ensures power transmission performance of the cable in the range of middle pressure；Meanwhile by the optimum choice of the material to each layer, ensure that fire prevention, fire resistance during fire occur for cable, protection cable core isolation burning things which may cause a fire disaster, greatly improve security.
Description
Technical field
The present invention relates to pressure shielding flame retardant cable in field of cable technology, more particularly to a kind of isolated form.
Background technology
Mineral cable refers to the cable that regular hour safe operation can be kept in the case of flame combustion.Mineral cable
It is widely used in skyscraper, subway, tunnel, large scale business synthesis, school, hospital, gymnasium etc. and fire safety and disappears
The relevant place of anti-lifesaving, the supply line of main power supply and the fire-fighting emergency service of such as important place and control circuit.Tradition
Mineral insulation fire-resisting cable, remain to be kept for the long duration continue to power after catching fire, but it is low stress levels to be present, manufacture
Complex, cost is expensive and is limited by production technology, cable bend poor performance, causes factory length shorter, installs
Process need larger amount of joint, increase material and cost of labor, efficiency be low.Also existing mineral cable is installed in laying
In, it can largely be pulled, cause the oversheath of cable easily to scratch, wear, cause cable bad.
The content of the invention
To solve technical problem present in background technology, the present invention proposes pressure shielding flame retardant cable in a kind of isolated form.
Pressure shielding flame retardant cable in a kind of isolated form proposed by the present invention, including：Cable core, lapping layer, outer separation layer, outer shield
Set；
Cable core includes three wires, and each wire includes the conductor positioned at middle part, the conductor shielding being coated on outside conductor
Layer, be coated on outside conductor shield insulating barrier, be coated on outside insulating barrier insulation screen, be coated on insulation screen
The metal screen layer of outside, the interior separation sleeve being coated on outside metal screen layer；
Lapping layer is coated on outside cable core, and outer separation layer is coated on outside lapping layer, and oversheath is coated on outside outer separation layer
Portion, restrictive coating are made of flame-retardant sheath material.
Preferably, three wires are circumferentially uniformly distributed in cable core, and the gap between wire is filled with flame resistant filler material
Material.
Preferably, the cable core has circular cross-section.
Preferably, insulating barrier and interior separation sleeve are made of XLPE insulating materials.
Preferably, conductor is twisted using tinned copper wire.
Preferably, insulating barrier is formed using Mica tape.
Preferably, metal screen layer is indulged bag using copper strips and formed.
In the present invention, pressure shielding flame retardant cable in the isolated form proposed, the wire of cable core includes leading from inside to outside successively
Body, conductor shield, insulating barrier, insulation screen, metal screen layer, interior separation sleeve, lapping layer are coated on outside cable core, outside every
Absciss layer is coated on outside lapping layer, and oversheath is coated on outside outer separation layer, and restrictive coating is made of flame-retardant sheath material.By upper
Pressure shielding flame retardant cable in the isolated form of optimization design is stated, structural design optimization is reasonable, by setting gradually conductor outside conductor
Screen layer, insulating barrier, insulation screen, metal screen layer, interior separation sleeve, capability of electromagnetic shielding is greatly improved, ensure that cable exists
Power transmission performance in the range of middle pressure；Meanwhile by the optimum choice of the material to each layer, ensure that cable occurs to prevent during fire
Fire, fire resistance, protection cable core isolation burning things which may cause a fire disaster, greatly improve security.
Brief description of the drawings
Fig. 1 is the structural representation of pressure shielding flame retardant cable in a kind of isolated form proposed by the present invention.
Embodiment
As shown in figure 1, Fig. 1 is the structural representation of pressure shielding flame retardant cable in a kind of isolated form proposed by the present invention.
Reference picture 1, pressure shielding flame retardant cable in a kind of isolated form proposed by the present invention, including：Cable core, lapping layer 3, outside every
Absciss layer 4, oversheath 5；
Cable core includes three wires, and each wire includes the conductor 11 positioned at middle part, the conductor being coated on outside conductor 11
Screen layer 12, the insulating barrier 13 being coated on outside conductor shield 12, the insulation screen 14 being coated on outside insulating barrier 13, bag
The metal screen layer 15 overlayed on outside insulation screen 14, the interior separation sleeve 16 being coated on outside metal screen layer 15；
Lapping layer 3 is coated on outside cable core, and outer separation layer 4 is coated on outside lapping layer 3, and oversheath 5 is coated on outer isolation
Outside layer 4, restrictive coating is made of flame-retardant sheath material.
In the present embodiment, pressure shielding flame retardant cable, the wire of cable core wrap successively from inside to outside in the isolated form proposed
Conductor, conductor shield, insulating barrier, insulation screen, metal screen layer, interior separation sleeve are included, lapping layer is coated on outside cable core,
Outer separation layer is coated on outside lapping layer, and oversheath is coated on outside outer separation layer, and restrictive coating is made of flame-retardant sheath material.It is logical
Pressure shielding flame retardant cable in the isolated form of above-mentioned optimization design is crossed, structural design optimization is reasonable, by being set gradually outside conductor
Conductor shield, insulating barrier, insulation screen, metal screen layer, interior separation sleeve, capability of electromagnetic shielding is greatly improved, ensure electricity
Power transmission performance of the cable in the range of middle pressure；Meanwhile by the optimum choice of the material to each layer, ensure that fire occurs for cable
When fire prevention, fire resistance, protection cable core isolation burning things which may cause a fire disaster, greatly improve security.
In order to ensure the stability of cable core structure, in a specific embodiment, three wires are circumferentially uniform in cable core
It is distributed, the gap between wire is filled with flame resistant filler material 2；In further embodiment, the cable core has circle
Tee section.
In order to improve the fire resistance of insulating materials, insulating barrier 13 and interior separation sleeve 16 use XLPE insulating materials systems
Into.
In the specific design mode of conductor, conductor 11 is twisted using tinned copper wire.
In the specific design mode of insulating barrier, insulating barrier 13 is formed using Mica tape, improves the high temperature resistant of cable
Performance, and strengthen overload capacity.
In order to further improve antimagnetic shield effect, ensure the stability of power transmission, metal screen layer 15 uses copper strips
Vertical bag forms.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
- A kind of 1. pressure shielding flame retardant cable in isolated form, it is characterised in that including：Cable core, lapping layer (3), outer separation layer (4), Oversheath (5)；Cable core includes three wires, and each wire includes the conductor (11) positioned at middle part, is coated on the outside conductor of conductor (11) Screen layer (12), it is coated on the outside insulating barrier (13) of conductor shield (12), is coated on the outside insulation screen of insulating barrier (13) Layer (14) is covered, the outside metal screen layer (15) of insulation screen (14) is coated on, is coated on metal screen layer (15) outside Interior separation sleeve (16)；Lapping layer (3) is coated on outside cable core, and outer separation layer (4) is coated on lapping layer (3) outside, and oversheath (5) is coated on outer Separation layer (4) is outside, and restrictive coating is made of flame-retardant sheath material.
- 2. pressure shielding flame retardant cable in isolated form according to claim 1, it is characterised in that three wire edges in cable core Even circumferential is distributed, and the gap between wire is filled with flame resistant filler material (2).
- 3. pressure shielding flame retardant cable in isolated form according to claim 2, it is characterised in that the cable core has circular cut Face.
- 4. pressure shielding flame retardant cable in isolated form according to claim 1, it is characterised in that insulating barrier (13) and interior isolation Set (16) is made of XLPE insulating materials.
- 5. pressure shielding flame retardant cable in isolated form according to claim 1, it is characterised in that conductor (11) uses tin-coated copper Silk is twisted.
- 6. pressure shielding flame retardant cable in isolated form according to claim 1, it is characterised in that insulating barrier (13) uses mica Formed with wrapped.
- 7. pressure shielding flame retardant cable in isolated form according to claim 1, it is characterised in that metal screen layer (15) uses Copper strips is indulged bag and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201352.3A CN107887068A (en) | 2017-11-27 | 2017-11-27 | Pressure shielding flame retardant cable in a kind of isolated form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201352.3A CN107887068A (en) | 2017-11-27 | 2017-11-27 | Pressure shielding flame retardant cable in a kind of isolated form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107887068A true CN107887068A (en) | 2018-04-06 |
Family
ID=61775347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711201352.3A Pending CN107887068A (en) | 2017-11-27 | 2017-11-27 | Pressure shielding flame retardant cable in a kind of isolated form |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107887068A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030111253A1 (en) * | 2001-12-17 | 2003-06-19 | Easter Mark R. | Semiconductive compositions and cable shields employing same |
| CN201036066Y (en) * | 2007-04-28 | 2008-03-12 | 深圳琦富瑞电子有限公司 | Mica lapped insulation glass fibre braiding sheath type high-temperature resistant special type electric wire |
| CN202694970U (en) * | 2012-06-27 | 2013-01-23 | 杭州电缆股份有限公司 | 35kV cable special for wind farm |
| CN203882712U (en) * | 2014-06-05 | 2014-10-15 | 四川金瑞电工有限责任公司 | A medium voltage cable used for rail transit |
| CN205751592U (en) * | 2016-05-30 | 2016-11-30 | 昆明市中小企业服务中心 | A kind of network service cable |
| CN206639647U (en) * | 2017-04-19 | 2017-11-14 | 安徽华电线缆集团有限公司 | A kind of mining tension medium voltage converter cable |
-
2017
- 2017-11-27 CN CN201711201352.3A patent/CN107887068A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030111253A1 (en) * | 2001-12-17 | 2003-06-19 | Easter Mark R. | Semiconductive compositions and cable shields employing same |
| CN201036066Y (en) * | 2007-04-28 | 2008-03-12 | 深圳琦富瑞电子有限公司 | Mica lapped insulation glass fibre braiding sheath type high-temperature resistant special type electric wire |
| CN202694970U (en) * | 2012-06-27 | 2013-01-23 | 杭州电缆股份有限公司 | 35kV cable special for wind farm |
| CN203882712U (en) * | 2014-06-05 | 2014-10-15 | 四川金瑞电工有限责任公司 | A medium voltage cable used for rail transit |
| CN205751592U (en) * | 2016-05-30 | 2016-11-30 | 昆明市中小企业服务中心 | A kind of network service cable |
| CN206639647U (en) * | 2017-04-19 | 2017-11-14 | 安徽华电线缆集团有限公司 | A kind of mining tension medium voltage converter cable |
Non-Patent Citations (1)
| Title |
|---|
| 苑鸿兴: "《简明电线电缆应用手册》", 31 August 2008, 天津大学出版社 * |
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Legal Events
| Date | Code | Title | Description |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180406 |