CN108695019A - A kind of flame-retardant pull tension long haul communication instrument signal cable - Google Patents
A kind of flame-retardant pull tension long haul communication instrument signal cable Download PDFInfo
- Publication number
- CN108695019A CN108695019A CN201810495508.1A CN201810495508A CN108695019A CN 108695019 A CN108695019 A CN 108695019A CN 201810495508 A CN201810495508 A CN 201810495508A CN 108695019 A CN108695019 A CN 108695019A
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- CN
- China
- Prior art keywords
- flame
- cable
- coated
- long haul
- communication instrument
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- 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
-
- 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
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments 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
- H01B7/29—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
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- Insulated Conductors (AREA)
Abstract
The invention discloses a kind of flame-retardant pull tension long haul communication instrument signal cables, cable core includes strengthening core and multiple signal line groups, strengthening core is located in the middle part of the cable core, multiple signal line groups are arranged around strengthening core, each signal line group includes two signal wires and the sub-shield that is coated on outside two signal wires, total wrapping layer is coated on outside the cable core, and total shielded layer is coated on outside total wrapping layer, and oversheath is coated on outside total shielded layer.Pass through the flame-retardant pull tension long haul communication instrument signal cable of above-mentioned optimization design; by the way that multiple signal line groups are arranged around strengthening core; cable forced position is set to be located at cable center; signal wire will not be caused to generate situations such as uneven stress causes signal wire to be broken; effective protection signal wire; to improve the towing intensity of cable so that cable has good tensile property.
Description
Technical field
The present invention relates to field of cable technology more particularly to a kind of flame-retardant pull tension long haul communication instrument signal cables.
Background technology
Cable is typically by several or several groups of conducting wires (every group at least two) are twisted, between every group of conducting wire mutually absolutely
Edge, and be often twisted into around a center, entire outside is surrounded by the coating of high-insulation.Cable has interior energization, external insulation
Feature.In daily life, present cable is in cable cabling using more enhancing structure to enhance its pull resistance
By aramid fiber, rope made of hemp etc. and the twisted circular configuration as an entirety of insulated wire cores, or in the side of oversheath or two
Side uses the enhancing structure of steel wire rope.This above-mentioned class formation respectively has quality, and ideal state is not achieved when in use.Use fiber crops
The construction of cable of rope and fiber, it is good using the intensity of steel wire to be far from intensity, also poorer than other on the service life.Use steel
The intensity of silk is good, but in use due to the poor in flexibility of steel wire, can cause between each insulated wire cores of cable core by
Power is uneven, and the disconnected core of insulated wire cores is caused to happen.
Invention content
To solve technical problem present in background technology, the present invention proposes a kind of flame-retardant pull tension long haul communication instrument letter
Number cable.
A kind of flame-retardant pull tension long haul communication instrument signal cable proposed by the present invention, including:Cable core, wrapping layer, total screen
Cover layer, oversheath;
Cable core includes strengthening core and multiple signal line groups, and strengthening core is located in the middle part of the cable core, and multiple signal line groups surround
Strengthening core arranges that each signal line group includes two signal wires and the sub-shield that is coated on outside two signal wires;
Total wrapping layer is coated on outside the cable core, and total shielded layer is coated on outside total wrapping layer, and oversheath is coated on always
Outside shielded layer.
Preferably, packing material is filled in cable core.
Preferably, every signal wire includes the conductor for being located at middle part, the inner insulating layer being coated on outside conductor and is coated on
External insulation layer outside inner insulating layer.
Preferably, the inner insulating layer is made of polyethylene foamed insulating materials, and the external insulation layer uses polyethylene
Insulating materials is made.
Preferably, sub-shield is coated using aluminium foil.
Preferably, sub-shield is internally provided with tinned copper wire drainage thread.
Preferably, total shielded layer is woven using tinned copper wire.
Preferably, oversheath is made of flame-proof polyvinyl chloride.
Preferably, strengthening core is twisted using finer wire.
In the present invention, the flame-retardant pull tension long haul communication instrument signal cable proposed, cable core includes strengthening core and multiple
Signal line group, strengthening core are located in the middle part of the cable core, and multiple signal line groups are arranged around strengthening core, and each signal line group includes two
Root signal wire and the sub-shield being coated on outside two signal wires, total wrapping layer are coated on outside the cable core, total shielded layer
It is coated on outside total wrapping layer, oversheath is coated on outside total shielded layer.Pass through the flame-retardant pull tension long range of above-mentioned optimization design
Communication instrument signal cable, by around strengthening core setting, cable forced position being made to be located at cable center multiple signal line groups,
Signal wire will not be caused to generate situations such as uneven stress causes signal wire to be broken, effective protection signal wire, to improve
The towing intensity of cable so that cable has good tensile property.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of flame-retardant pull tension long haul communication instrument signal cable proposed by the present invention.
Specific implementation mode
As shown in FIG. 1, FIG. 1 is a kind of structures of flame-retardant pull tension long haul communication instrument signal cable proposed by the present invention to show
It is intended to.
Referring to Fig.1, a kind of flame-retardant pull tension long haul communication instrument signal cable proposed by the present invention, including:It is cable core, wrapped
Layer 1, total shielded layer 2, oversheath 3;
Cable core includes strengthening core 8 and multiple signal line groups, and strengthening core 8 is located in the middle part of the cable core, and multiple signal line groups are enclosed
It is arranged around strengthening core 8, each signal line group includes two signal wires and the sub-shield 4 that is coated on outside two signal wires;
Total wrapping layer 1 is coated on outside the cable core, and total shielded layer 2 is coated on outside total wrapping layer 1, and oversheath 3 coats
Outside total shielded layer 2.
In the present embodiment, the flame-retardant pull tension long haul communication instrument signal cable proposed, cable core include strengthening core and
Multiple signal line groups, strengthening core are located in the middle part of the cable core, and multiple signal line groups are arranged around strengthening core, each signal line group packet
The sub-shield for including two signal wires and being coated on outside two signal wires, total wrapping layer are coated on outside the cable core, total to shield
It covers layer to be coated on outside total wrapping layer, oversheath is coated on outside total shielded layer.Flame-retardant pull tension by above-mentioned optimization design is long
Distance communication instrument signal cable makes cable forced position be located at cable by the way that multiple signal line groups are arranged around strengthening core
Center will not cause signal wire to generate situations such as uneven stress causes signal wire to be broken, effective protection signal wire, thus
Improve the towing intensity of cable so that cable has good tensile property.
In a specific embodiment, packing material 9 is filled between cable core is interior, packing material is matched with strengthening core is combined into signal wire
Protection is provided;In the specific choice mode of packing material, cable core fills the rounding that flame resistant filler rope ensures cable core.
In the specific design method of signal wire, every signal wire includes the conductor 5 for being located at middle part, is coated on outside conductor 5
The inner insulating layer 6 in portion and the external insulation layer 7 being coated on outside inner insulating layer 6, double hyer insulation ensure insulating reliability.Have in conductor
Body selection in, conductor is twisted by internal stranded copper wire, copper wire directly by it is regular it is twisted in a manner of combine, ensure the soft of cable
Soft energy, and be also most stable of layout type, external force is difficult the combination layout between changing them.
In further specific design method, the inner insulating layer 6 is made of polyethylene foamed insulating materials, described outer
Insulating layer 7 is made of polyethylene insulation material;Double hyer insulation uses internal foamed insulation, external polyethylene double hyer insulation one
Molding, while the reliability for ensureing insulating properties and being combined with conductor, insulation soft pliable is bent, can make insulated wire cores softness, no
Embrittlement hardens, and has relatively low capacitance.
In the specific design method of sub-shield, sub-shield 4 is coated using aluminium foil;Further, separated-shielding
Layer 4 is internally provided with tinned copper wire drainage thread;In the specific design method of total shielded layer, total shielded layer 2 is compiled using tinned copper wire
It knits;Such shielding form can play the role of shielding external electromagnetic waves, and protection internal signal transmission is more stable, no
It is disturbed, which ensure that cable can be anti-interference, and tinned copper wire has the effect of preventing copper wire from aoxidizing simultaneously.
In the specific design method of strengthening core, strengthening core 8 is twisted using finer wire;Using centre steel wire rope
3 are used as stiffener, ensure that the excellent tensile property of cable, the design not only ensure that the flexibility of cable, also ensure
The towing intensity of cable, makes inner conductor be not easily broken.
In other specific implementation modes, oversheath 3 is made of flame-proof polyvinyl chloride, has the spies such as resist bending, fire-retardant
Different performance.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of flame-retardant pull tension long haul communication instrument signal cable, which is characterized in that including:Cable core, wrapping layer (1), total screen
Cover layer (2), oversheath (3);
Cable core includes strengthening core (8) and multiple signal line groups, and strengthening core (8) is located in the middle part of the cable core, and multiple signal line groups are enclosed
It is arranged around strengthening core (8), each signal line group includes two signal wires and the sub-shield that is coated on outside two signal wires
(4);
Total wrapping layer (1) is coated on outside the cable core, and total shielded layer (2) is coated on total wrapping layer (1) outside, oversheath (3)
It is external to be coated on total shielded layer (2).
2. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that in the cable core
Filled with packing material (9).
3. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that every signal wire
Include positioned at middle part conductor (5), be coated on the external inner insulating layer (6) of conductor (5) and be coated on outside inner insulating layer (6)
External insulation layer (7).
4. flame-retardant pull tension long haul communication instrument signal cable according to claim 3, which is characterized in that the interior insulation
Layer (6) is made of polyethylene foamed insulating materials, and the external insulation layer (7) is made of polyethylene insulation material.
5. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that sub-shield
(4) it is coated using aluminium foil.
6. flame-retardant pull tension long haul communication instrument signal cable according to claim 5, which is characterized in that sub-shield
(4) it is internally provided with tinned copper wire drainage thread.
7. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that total shielded layer
(2) it is woven using tinned copper wire.
8. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that oversheath (3)
It is made of flame-proof polyvinyl chloride.
9. flame-retardant pull tension long haul communication instrument signal cable according to claim 1, which is characterized in that strengthening core (8)
It is twisted using finer wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810495508.1A CN108695019A (en) | 2018-05-22 | 2018-05-22 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810495508.1A CN108695019A (en) | 2018-05-22 | 2018-05-22 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108695019A true CN108695019A (en) | 2018-10-23 |
Family
ID=63847886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810495508.1A Pending CN108695019A (en) | 2018-05-22 | 2018-05-22 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108695019A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200919A (en) * | 2014-08-15 | 2014-12-10 | 安徽天康股份有限公司 | Low temperature resistant LSZH (Low Smoke Zero Halogen) A type pure tinned shielding instrument signal cable |
| CN104240806A (en) * | 2013-06-21 | 2014-12-24 | 江苏赛特电气有限公司 | Halogen-free low-smoke flame retardant instrument cable for nuclear power plant |
| CN204695856U (en) * | 2015-06-28 | 2015-10-07 | 吴联紫 | A kind of high-strength composite power cable |
| CN208655271U (en) * | 2018-05-22 | 2019-03-26 | 安徽天康(集团)股份有限公司 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
-
2018
- 2018-05-22 CN CN201810495508.1A patent/CN108695019A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240806A (en) * | 2013-06-21 | 2014-12-24 | 江苏赛特电气有限公司 | Halogen-free low-smoke flame retardant instrument cable for nuclear power plant |
| CN104200919A (en) * | 2014-08-15 | 2014-12-10 | 安徽天康股份有限公司 | Low temperature resistant LSZH (Low Smoke Zero Halogen) A type pure tinned shielding instrument signal cable |
| CN204695856U (en) * | 2015-06-28 | 2015-10-07 | 吴联紫 | A kind of high-strength composite power cable |
| CN208655271U (en) * | 2018-05-22 | 2019-03-26 | 安徽天康(集团)股份有限公司 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
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