CN109698044B - Preformed armor protective line - Google Patents
Preformed armor protective line Download PDFInfo
- Publication number
- CN109698044B CN109698044B CN201811636476.9A CN201811636476A CN109698044B CN 109698044 B CN109698044 B CN 109698044B CN 201811636476 A CN201811636476 A CN 201811636476A CN 109698044 B CN109698044 B CN 109698044B
- Authority
- CN
- China
- Prior art keywords
- layer
- cable
- protective layer
- armor
- twisted
- 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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Links
- 230000001681 protective effect Effects 0.000 title abstract description 7
- 239000010410 layer Substances 0.000 claims abstract description 52
- 239000011241 protective layer Substances 0.000 claims abstract description 34
- 239000003063 flame retardant Substances 0.000 claims abstract description 22
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims 1
- 238000005253 cladding Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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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
- H01B7/17—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
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/221—Longitudinally placed metal wires or tapes
- H01B7/223—Longitudinally placed metal wires or tapes forming part of a high tensile strength core
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- 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
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a pre-twisted armor wire strip in the technical field of cable protection, which comprises a cable arranged at the entrance of a bridge or a tunnel, wherein the cable comprises a cable and an armor protective layer coated on the axial direction of the cable, the armor protective layer also comprises an inner protective layer, a middle flame-retardant layer and an outer protective layer, the middle flame-retardant layer is positioned between the inner protective layer and the outer protective layer, the inner protective layer is coated along the axial direction of the cable, the outer protective layer is coated on the outer side of the middle flame-retardant layer, the components of the pre-twisted armor wire strip are all high-quality materials, the pre-twisted armor wire strip is integrally coated on the cable and can bear 4000A-7500A short-circuit current impact, the pre-twisted armor wire strip is made in a pre-twisted mode, the stress on a ground wire is uniform and free from stress concentration, the mechanical performance is reliable, a convenient tool is not, the surface of the pre-twisted armor protective strip is burnt at high temperature, and the cable cannot be damaged.
Description
Technical Field
The invention discloses a pre-twisted type armor wire protecting strip, and particularly relates to the technical field of cable protection.
Background
In the process of railway operation, supplying electric energy to trains (high-speed rails and trains) is a very complicated and important link, the safe operation of a power transmission line in normal power supply is particularly important, when the power transmission line passes through a bridge or a tunnel entrance, the power transmission line is hit by falling wood stones, and after being hit by a clue, the problem of line short circuit, tripping or even more serious problem is caused, so that the trains in line operation are forced to stop or have accidents to be serious accidents. In the conventional cable protection device, a rubber tube is often used as a protection device, and the rubber tube has poor aging resistance and is easily damaged after being hit by an object. Therefore, we propose a pre-twisted armor wire to be put into use to solve the above problems.
Disclosure of Invention
The invention aims to provide a pre-twisted armor wire strip to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a preformed armor protects lines, is including arranging the cable at bridge or tunnel entry, and this cable includes the clue and the cladding is at this clue ascending armor inoxidizing coating of axial, the armor inoxidizing coating still includes interior sheath, middle fire-retardant layer and outer jacket, middle fire-retardant level in interior sheath with between the outer jacket, interior sheath is followed the axial cladding of clue, the outer jacket cladding is in the outside of middle fire-retardant layer.
Preferably, the inner protective layer and the outer protective layer have the same structure and are made of copper-clad steel wires with high strength and strong corrosion resistance by a pre-twisted spiral pre-forming process.
Preferably, the tensile strength of the single wire of the copper-clad steel wire is more than or equal to 100MPa, the diameter of the copper-clad steel wire is 2.6mm, and the thickness of the copper cladding is more than or equal to 80 mu m.
Preferably, the outer side of the structural layer of the outer protective layer is also marked with a central color marking point serving as an installation starting point, the point is coated with water-resistant paint, and the width of the point is 2-3 cm.
Preferably, the inner sheath and the outer sheath are twisted in the same direction as the outer layer of the cord covered thereby.
Preferably, the inner sheath is adhered with conductive sand for preventing the armor protection layer from moving axially at the position where the inner sheath contacts with the cable.
Preferably, the middle flame-retardant layer is made of a flame-retardant material with a combustion performance grade of A1.
Preferably, the intermediate flame-retardant layer further comprises an insulating layer made of high-density graphite paper.
Preferably, the cord is pre-twisted in its entirety to withstand a current surge of 4000A to 7500A.
Compared with the prior art, the invention has the beneficial effects that: the components of the invention are all high-quality materials, the whole body is coated on a cable wire and can bear 4000A-7500A short circuit current impact, the inner and outer layer stranded wires of the armor protective line adopt copper-coated steel wires with high strength and strong corrosion resistance, the tensile strength of a single wire of the copper-coated steel wire is more than or equal to 100MPa, the cable wire is protected from being damaged when an object hits the cable wire, conductive sand is adhered to the inner side of the inner layer stranded wire, the movement of the pre-stranded armor protective line can be prevented, the middle flame-retardant layer of the pre-stranded armor protective line is an insulating layer made of high-density graphite paper, which is an important guarantee for protecting the cable wire, the armor protective line is made of pre-stranded wires, the stress on a ground wire is uniform and stress-free, the mechanical property is reliable, the installation is convenient and convenient, the cable wire can be effectively protected, the surface metal structure can not be damaged when the cable wire is, the thread is not damaged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view taken along line A-A of the present invention;
FIG. 3 is an exploded view of a protective layer according to the present invention;
fig. 4 is a schematic view of the installation structure of the present invention.
In the figure: 1 cable, 2 armor protective layers, 21 inner protective layers, 22 outer protective layers, 23 flame retardant layers and 3 central color mark points.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a preformed armor protecting wire, is including arranging the cable at bridge or tunnel entry, and this cable includes thread 1 and the cladding at 1 ascending armor inoxidizing coating 2 of this thread, armor inoxidizing coating 2 still includes interior sheath 21, fire-retardant layer 23 in the middle of and outer jacket 22, fire-retardant layer 23 in the middle of is located interior sheath 21 with between the outer jacket 22, interior sheath 21 is followed the axial cladding of thread 1, the outer jacket 22 cladding is in the outside of fire-retardant layer 23 in the middle of.
Wherein the inner protective layer 21 and the outer protective layer 22 have the same structure, the inner protective layer 21 and the outer protective layer 22 are made of copper-clad steel wires with high strength and strong corrosion resistance by a pre-twisted spiral pre-forming process, the tensile strength of a single wire of the copper-clad steel wires is more than or equal to 100MPa, the diameter of the copper-clad steel wires is 2.6mm, the thickness of a copper clad layer is more than or equal to 80 mu m, a central color marking point 3 serving as an installation starting point is marked on the outer side of the structural layer of the outer protective layer 22, the point is coated by waterproof paint and has the width of 2-3cm, the twisting direction of the inner protective layer 21 and the outer protective layer 22 is consistent with the twisting direction of the outer layer of the cable 1 covered by the inner protective layer 21 and the cable 1, conductive sand used for preventing the armor protective layer 2 from moving axially is adhered to the position of the inner protective layer 21 and the cable 1, the middle flame-retardant layer 23 is, the cord 1 can withstand 4000A-7500A short circuit current surge after being integrally pre-twisted coated.
Specifically, when the cable is used, the components of the cable are high-quality materials, the cable 1 is integrally coated with the cable, the cable can bear 4000A-7500A short-circuit current impact, the stranded wires of the inner protection layer 21 and the outer protection layer 22 in the armored protection layer 2 are copper-coated steel wires with high strength and strong corrosion resistance, the tensile strength of each single wire of the copper-coated steel wires is more than or equal to 100MPa, the cable 1 is protected from being damaged in the process of hitting the cable by an object, conductive sand is adhered to the inner side of the stranded wire of the inner protection layer 21, the armored protection layer 2 can be prevented from moving, the middle flame-retardant layer 23 of the armored protection layer 2 is an insulating layer made of high-density graphite paper, the cable 1 is important to be protected, the inner protection layer 21 and the outer protection layer 22 in the armored protection layer 2 are made in a pre-stranded mode, the stress on a ground wire is uniform and free of stress concentration, when the cable 1 is in lap joint short circuit, the armor protective layer 2 on the surface is burnt at high temperature, and the cable 1 cannot be damaged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A preformed armor beads, including the cable of arranging at bridge or tunnel entry, its characterized in that: the cable comprises a cable (1) and an armor protection layer (2) coated on the axial direction of the cable (1), wherein the armor protection layer (2) further comprises an inner protection layer (21), an intermediate flame-retardant layer (23) and an outer protection layer (22), the intermediate flame-retardant layer (23) is positioned between the inner protection layer (21) and the outer protection layer (22), the inner protection layer (21) is coated along the axial direction of the cable (1), and the outer protection layer (22) is coated on the outer side of the intermediate flame-retardant layer (23);
the inner protective layer (21) and the outer protective layer (22) have the same structure and are made of copper-clad steel wires with high strength and strong corrosion resistance by a pre-twisted spiral preforming process;
the tensile strength of the single wire of the copper-clad steel wire is more than or equal to 100MPa, the diameter of the copper-clad steel wire is 2.6mm, and the thickness of a copper coating is more than or equal to 80 mu m;
the twisting direction of the inner protective layer (21) and the outer protective layer (22) is consistent with the twisting direction of the outer layer of the thread (1) covered by the inner protective layer and the outer protective layer;
the position of the inner protection layer (21) which is in contact with the cable (1) is also adhered with conductive sand for preventing the armor protective layer (2) from moving axially;
the middle flame-retardant layer (23) also comprises an insulating layer, and the insulating layer is made of high-density graphite paper;
the cord (1) can bear 4000A-7500A short-circuit current impact after being coated in an integral pre-twisted manner.
2. A pre-twisted armour wire strip according to claim 1, wherein: the outer side of the structural layer of the outer protective layer (22) is also marked with a central color marking point (3) serving as an installation starting point, the point is coated with waterproof paint, and the width of the point is 2-3 cm.
3. A pre-twisted armour wire strip according to claim 1, wherein: the middle flame-retardant layer (23) is made of a flame-retardant material with the combustion performance grade of A1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636476.9A CN109698044B (en) | 2018-12-29 | 2018-12-29 | Preformed armor protective line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636476.9A CN109698044B (en) | 2018-12-29 | 2018-12-29 | Preformed armor protective line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109698044A CN109698044A (en) | 2019-04-30 |
| CN109698044B true CN109698044B (en) | 2021-01-15 |
Family
ID=66232461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811636476.9A Active CN109698044B (en) | 2018-12-29 | 2018-12-29 | Preformed armor protective line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109698044B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444332A (en) * | 2019-08-26 | 2019-11-12 | 深圳新阳蓝光能源科技股份有限公司 | A kind of Novel pre-hinged armouring shield lines |
| US11569006B1 (en) | 2021-08-20 | 2023-01-31 | Tesa Se | Cover for a cable harness with different color layers |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11223282A (en) * | 1998-02-05 | 1999-08-17 | Sumitomo Wiring Syst Ltd | Tube for protecting wire harness |
| KR100881406B1 (en) * | 2007-10-11 | 2009-02-05 | 김영중 | Control cable and manufacturing method thereof |
| CN203180457U (en) * | 2012-08-21 | 2013-09-04 | 青海省电力公司信息通信公司 | Power transmission line combined anti-vibration line-armoring device used in salt lake regions |
| CN103886980A (en) * | 2014-02-28 | 2014-06-25 | 安徽幸福电器电缆有限公司 | Flame-retardant cable |
| CN104103352A (en) * | 2014-07-16 | 2014-10-15 | 中天科技海缆有限公司 | Environment-friendly sea-worm-proof double-steel-wire armored optical fiber composite submarine cable |
| CN204947537U (en) * | 2015-08-18 | 2016-01-06 | 国网辽宁省电力有限公司沈阳供电公司 | A kind of carbon fiber composite core wire preformedly protects lines with trapezoidal |
| CN206678827U (en) * | 2016-11-25 | 2017-11-28 | 北京盈电电气有限公司 | A kind of preformed armouring shield line and curve connection joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9627100B2 (en) * | 2013-04-24 | 2017-04-18 | Wireco World Group Inc. | High-power low-resistance electromechanical cable |
-
2018
- 2018-12-29 CN CN201811636476.9A patent/CN109698044B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11223282A (en) * | 1998-02-05 | 1999-08-17 | Sumitomo Wiring Syst Ltd | Tube for protecting wire harness |
| KR100881406B1 (en) * | 2007-10-11 | 2009-02-05 | 김영중 | Control cable and manufacturing method thereof |
| CN203180457U (en) * | 2012-08-21 | 2013-09-04 | 青海省电力公司信息通信公司 | Power transmission line combined anti-vibration line-armoring device used in salt lake regions |
| CN103886980A (en) * | 2014-02-28 | 2014-06-25 | 安徽幸福电器电缆有限公司 | Flame-retardant cable |
| CN104103352A (en) * | 2014-07-16 | 2014-10-15 | 中天科技海缆有限公司 | Environment-friendly sea-worm-proof double-steel-wire armored optical fiber composite submarine cable |
| CN204947537U (en) * | 2015-08-18 | 2016-01-06 | 国网辽宁省电力有限公司沈阳供电公司 | A kind of carbon fiber composite core wire preformedly protects lines with trapezoidal |
| CN206678827U (en) * | 2016-11-25 | 2017-11-28 | 北京盈电电气有限公司 | A kind of preformed armouring shield line and curve connection joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109698044A (en) | 2019-04-30 |
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