CN106847400A - Copper sheath fire prevention cable - Google Patents
Copper sheath fire prevention cable Download PDFInfo
- Publication number
- CN106847400A CN106847400A CN201710083338.1A CN201710083338A CN106847400A CN 106847400 A CN106847400 A CN 106847400A CN 201710083338 A CN201710083338 A CN 201710083338A CN 106847400 A CN106847400 A CN 106847400A
- Authority
- CN
- China
- Prior art keywords
- conductor
- center
- cores
- copper sheath
- layer
- 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.)
- Pending
Links
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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- 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
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/20—Metal tubes, e.g. lead sheaths
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/20—Metal tubes, e.g. lead sheaths
- H01B7/202—Longitudinal lapped metal tubes
-
- 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
The invention discloses a kind of copper sheath fire prevention cable; including the conductor cores positioned at center; the outside of conductor cores is surrounded with the mica belt for protecting conductor cores and prevent conductor cores from aoxidizing; silicone insulation layer is provided between mica belt and conductor cores, mica belt peripheral hardware is equipped with longitudinal seam welding copper sheath layer；The conductor cores are formed using many conductor strands, including at least one be located at center, cross-sectional area of conductor be circular center conductor, the outside of center conductor is stranded there is at least one of which to stir rear section being capable of compact arranged profile conductor layer.The present invention on the basis of the requirement of good fire protecting performance is met, with preferable humidity resistance, particularly can overlength degree make, the use of construction center tap is reduced, for the transmission for ensureing electric energy and information provides reliable guarantee.
Description
Technical field
The present invention relates to power cable technical field, particularly a kind of fire prevention cable.
Background technology
The medium that cable is transmitted as electric power and electric energy is distributed, is widely used in control installation, connection equipment, conveying electricity
The aspects such as power.Cable in use it may happen that short circuit or breaking problem, can cause power communication to be interrupted, therefore
Today of information technology fast development, is that guarantee information is transmitted and the reliability requirement of power supply is also more and more higher, and this is just right
The requirement of cable performance proposes high requirement.
The performance indications of cable performance are also embodied in addition to the electric conductivity of itself：It is fire protecting performance, humidity resistance, explosion-proof
Performance, decay resistance, temperature performance, expansion character, tensile strength, elasticity, plasticity, hardness, toughness and fatigue strength etc.
Aspect.But cable on the market is only capable of meeting one or two kind of requirement of function mostly at present, it is impossible to while meeting people to cable
The demand of many aspects；Particularly the preferable fireproof cable of sales volume, uses tank pressure to aoxidize mostly due to its mineral layer fireprotection layer
Magnesium powder drawing is molded, along with being influenceed by conductor core production process, to prevent that phenomenon of rupture, cable occur in its work progress
Factory length will be influenceed by very big, the length of most of fireproof cables generally more than 200 meter, so as to cause construction
Process center tap is more, is hidden some dangers for be susceptible to breaking phenomena.
The content of the invention
The technical problem to be solved in the invention is to provide a kind of power cable, is meeting the base of good fire protecting performance requirement
On plinth, with preferable humidity resistance, particularly can overlength degree make, reduce the use of construction center tap, be to ensure electric energy
Transmission with information provides reliable guarantee.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
A kind of copper sheath fire prevention cable, including positioned at the conductor cores at center, the outside of conductor cores is surrounded with leads for protection
Body core and prevent conductor cores aoxidize mica belt, be provided between mica belt and conductor cores silicone insulation layer, mica belt
It is outer to be provided with longitudinal seam welding copper sheath layer；The conductor cores are formed using many conductor strands, and center is located at including at least one
, cross-sectional area of conductor be circular center conductor, the outside of center conductor is stranded to have at least one of which to stir rear section can closely arrange
The profile conductor layer of row.
A kind of above-mentioned copper sheath fire prevention cable, the cross sectional shape of each profile conductor is trapezoidal knot in the profile conductor layer
Structure, the short end of trapezoidal conductor is set towards center conductor.
As a result of above technical scheme, the invention technological progress is as follows.
Conductor cores of the invention are used centered on the center conductor of circular section, odd-shaped cross section conductor loop around center conductor knot
Structure, can not only make be in close contact between each conductor, increasing section product, improve electric conductivity, but also between making each conductor
Possess split, therefore bending property is good, minimum bending radius up to 3 times of outer diameter of cable, even if repeatedly, bending
Phenomenon of rupture will not also occur；Along with copper sheath layer uses longitudinal seam welding technique, can closely include mica belt, silica gel
Insulating barrier and conductor cores so that whole cable becomes more consolidation, so that under conditions of equal performance requirement, cable
External diameter can reduce 50%, and weight saving about 30% is convenient to install, and also reduces the occupancy of spatial volume.Because the present invention is using special
The conductor cored structure and copper sheath manufacture craft of different technique so that it is more long that the present invention can make, through experiment, length of the invention
Degree can at least be fabricated to more than 2 kms, single to meet most construction demands, reduce the use of construction center tap, be
Ensure that the transmission of electric energy and information provides reliable guarantee.
Further, since outermost layer of the invention uses copper sheath, therefore its shielding properties to greatly improve, electricity can be both prevented
Cable is prevented from interference of the external magnetic field to itself again in itself to the interference of other cables, can so as to ensure that information transfer
By property；Also, copper sheath has certain intensity and toughness, therefore when the deformation such as being bent, stretch, reversing in cable, lead
Opposite location between body core and copper sheath keeps constant, therefore the phenomenon that will not be short-circuited, and would not also influence the electricity of cable
Gas performance and insulating properties.
Insulating barrier of the invention is produced using extrusion process, and insulating materials uses silica gel, with it is nonhygroscopic, can be soaked
Water is suppressed, therefore humidity resistance is greatly improved.
Brief description of the drawings
Fig. 1 is section of structure of the invention.
Wherein：1. conductor cores, 11. center conductors, 12. profile conductors, 2. silicone insulation layer, 3. mica belt, 4. longitudinal joint
Welding copper sheath layer.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in further detail.
A kind of copper sheath prevents fires cable, its structure as shown in figure 1, including the conductor cores 1 positioned at center, conductor cores 1 it is outer
Portion is surrounded with mica belt 3, for protecting conductor cores and preventing conductor cores from aoxidizing；It is provided between mica belt 3 and conductor cores 1
Silicone insulation layer 2, is provided with longitudinal seam welding copper sheath layer 4 outside mica belt 3.
Conductor cores 1 are formed using many conductor strands, including at least one be located at center, cross-sectional area of conductor be circle in
Heart conductor 11, the outside of center conductor is stranded there is at least one of which to stir rear section being capable of compact arranged profile conductor layer.This reality
Apply in example, two-layer profile conductor layer is set altogether, the cross sectional shape of each profile conductor 12 is trapezium structure in profile conductor layer, trapezoidal
The short end of conductor is set towards center conductor, as shown in Figure 1.
The present invention sets the trapezoid cross section size of conductor cores profile conductor according to conductor combined closure system first when making,
Ensure on the basis of performance parameter, profile conductor layer is closely adjacent on the periphery of center conductor；Pass through extrusion process again
Silicone insulation layer is extruded outside conductor cores；Then in the outer wrapped mica belt of silicone insulation layer；Finally pass through outside mica belt
Longitudinal seam welding technique parcel copper sheath layer.
Above-described embodiment is presently preferred embodiments of the present invention, is not intended to limit the present invention.The section of such as profile conductor
Shape can also be other structures, as long as the shape combined closely between can realizing each conductor after around center conductor, i.e.,
Fall within the scope of the present application.
Claims (2)
1. a kind of copper sheath fire prevention cable, it is characterised in that：Including the conductor cores positioned at center（1）, conductor cores（1）Outside around
It is surrounded by the mica belt for protecting conductor cores and prevent conductor cores from aoxidizing（3）, mica belt（3）It is provided between conductor cores
Silicone insulation layer（2）, mica belt（3）It is outer to be provided with longitudinal seam welding copper sheath layer（4）；
The conductor cores（1）Formed using many conductor strands, including at least one be located at center, cross-sectional area of conductor be circular
Center conductor（11）, the outside of center conductor is stranded there is at least one of which to stir rear section being capable of compact arranged profile conductor layer.
2. a kind of copper sheath fire prevention cable according to claim 1, it is characterised in that：Each abnormal shape in the profile conductor layer
Conductor（12）Cross sectional shape be trapezium structure, the short end of trapezoidal conductor is set towards center conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083338.1A CN106847400A (en) | 2017-02-16 | 2017-02-16 | Copper sheath fire prevention cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710083338.1A CN106847400A (en) | 2017-02-16 | 2017-02-16 | Copper sheath fire prevention cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106847400A true CN106847400A (en) | 2017-06-13 |
Family
ID=59128290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710083338.1A Pending CN106847400A (en) | 2017-02-16 | 2017-02-16 | Copper sheath fire prevention cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106847400A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331444A (en) * | 2017-06-20 | 2017-11-07 | 江苏亨通线缆科技有限公司 | Track traffic synthetic earth cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200972801Y (en) * | 2006-11-17 | 2007-11-07 | 江苏远方电缆厂有限公司 | Pear type symmetric ceramic insulated fire-proof cable |
| CN101339826A (en) * | 2007-07-06 | 2009-01-07 | 上海摩恩电气有限公司 | Mineral insulated cable of large length |
| CN203521002U (en) * | 2013-10-21 | 2014-04-02 | 湖北加德科技股份有限公司 | High-performance aluminum alloy cable |
| CN104409165A (en) * | 2014-11-27 | 2015-03-11 | 河北新宝丰电线电缆有限公司 | Novel cross-linked-polyethylene insulated power cable with nominal voltage of 750kV |
| CN205140574U (en) * | 2015-12-10 | 2016-04-06 | 泰丰线缆集团有限公司 | Flexible fireproof cable |
| CN206451531U (en) * | 2017-02-16 | 2017-08-29 | 沈兴线缆集团有限公司 | Copper sheath fire prevention cable |
-
2017
- 2017-02-16 CN CN201710083338.1A patent/CN106847400A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200972801Y (en) * | 2006-11-17 | 2007-11-07 | 江苏远方电缆厂有限公司 | Pear type symmetric ceramic insulated fire-proof cable |
| CN101339826A (en) * | 2007-07-06 | 2009-01-07 | 上海摩恩电气有限公司 | Mineral insulated cable of large length |
| CN203521002U (en) * | 2013-10-21 | 2014-04-02 | 湖北加德科技股份有限公司 | High-performance aluminum alloy cable |
| CN104409165A (en) * | 2014-11-27 | 2015-03-11 | 河北新宝丰电线电缆有限公司 | Novel cross-linked-polyethylene insulated power cable with nominal voltage of 750kV |
| CN205140574U (en) * | 2015-12-10 | 2016-04-06 | 泰丰线缆集团有限公司 | Flexible fireproof cable |
| CN206451531U (en) * | 2017-02-16 | 2017-08-29 | 沈兴线缆集团有限公司 | Copper sheath fire prevention cable |
Non-Patent Citations (2)
| Title |
|---|
| 李耀星: "《中国绝缘材料产品及应用手册》", 28 February 2006, 机械工业出版社 * |
| 黄志先: "《高电压技术应用》", 30 June 2015, 中国水利水电出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331444A (en) * | 2017-06-20 | 2017-11-07 | 江苏亨通线缆科技有限公司 | Track traffic synthetic earth cable |
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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: 20170613 |