CN109411147A - A kind of fire resisting cable for digital communication - Google Patents
A kind of fire resisting cable for digital communication Download PDFInfo
- Publication number
- CN109411147A CN109411147A CN201811423480.7A CN201811423480A CN109411147A CN 109411147 A CN109411147 A CN 109411147A CN 201811423480 A CN201811423480 A CN 201811423480A CN 109411147 A CN109411147 A CN 109411147A
- Authority
- CN
- China
- Prior art keywords
- flame retardant
- digital communication
- fire resisting
- cable
- retardant coating
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/10—Screens specially adapted for reducing interference from external sources
- H01B11/1025—Screens specially adapted for reducing interference from external sources composed of a helicoidally wound tape-conductor
-
- 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
-
- 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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
-
- 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
- H01B7/1875—Multi-layer 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
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
-
- 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
-
- 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
-
- 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
Abstract
This application involves a kind of fire resisting cable for digital communication, a kind of fire resisting cable for digital communication, comprising: cable core, four groups of lines pair including being arranged into two rows two column, every group of line is to including two mutually twisted transmission lines；Lock armo layer is set in the outside of four groups of lines pair；Flame retardant coating is arranged in the lock armo layer inner surface；Foam flame retardant filler is filled between the flame retardant coating and the line pair, by four groups of lines to fixation；Transmission line includes the high density polyethylene (HDPE) insulating layer of conductor, the mica tape of wrapped conductor, cladding mica tape.The present invention has good fire resisting, heat resistance, while the stainless steel spiral lock armo mode used improves cable bend performance, tension/lateral pressure resistant and corrosion-resistant level, and cable can directly be laid, and is routed from poling, improves construction efficiency.
Description
Technical field
The application belongs to communication cable technical field, more particularly, to a kind of fire resisting cable for digital communication.
Background technique
Cable for digital communication is used for house wiring, and in special occasions, cable flame retardance cannot fully meet application
Demand needs cable to have fire resistance, i.e., in the event of a fire, can adhere to normal communication in 90 minutes.
Common PVC sheath cable for digital communication does not have fire resisting function, when fire occurs, will soon communicate
Disrupted condition.
Summary of the invention
The technical problem to be solved by the present invention is to solve the deficiency of communication cable fire resistance in the prior art, thus
A kind of fire resisting cable for digital communication is provided.
The technical solution adopted by the present invention to solve the technical problems is: a kind of fire resisting cable for digital communication, comprising:
Cable core, four groups of lines pair including being arranged into two rows two column, every group of line is to including two mutually twisted transmission lines；
Lock armo layer is set in the outside of four groups of lines pair；
Flame retardant coating is arranged in the lock armo layer inner surface；
Foam flame retardant filler is filled between the flame retardant coating and the line pair, by four groups of lines to fixation；
The flame retardant coating is divided into first flame retardant coating and second flame retardant coating, and the first fire resisting layer material is ceramics
Change low smoke halogen-free flame-retardant polyolefin, second flame retardant coating includes asbestos cloth and fireproof coating, and the fireproof coating is applied to stone
On cotton, and it is filled in asbestos cloth hollow out position；
The transmission line includes the high density polyethylene (HDPE) of conductor, the mica tape of the wrapped conductor, the cladding mica tape
Insulating layer.
Preferably, fire resisting cable for digital communication of the invention, the Duplication of the mica tape is 50% or more.
Preferably, fire resisting cable for digital communication of the invention, the lock armo layer material are stainless steel.
Preferably, fire resisting cable for digital communication of the invention, the thickness 0.2mm of the lock armo layer.
Preferably, fire resisting cable for digital communication of the invention, the asbestos cloth is by asbestos twisted rope and braided asbestos square packing shuffling shape
At wherein the quality of the asbestos twisted rope accounts for 30-40%, the quality of the braided asbestos square packing accounts for 60-70%.
Preferably, fire resisting cable for digital communication of the invention, first flame retardant coating and second flame retardant coating with it is described
The ratio between the thickness of lock armo layer are as follows: 1:0.5-0.6:0.5-0.8.
Preferably, fire resisting cable for digital communication of the invention, fireproof coating add fire prevention resistance by tertiary acrylic emulsion water-based material
Fire agent, plasticizer composition.
The beneficial effects of the present invention are: the stainless steel spiral for effectively increasing cable fire performance, while using interlocks armour
Dress mode improves cable bend performance, tension/lateral pressure resistant and corrosion-resistant level, and cable can directly be laid, and is routed from poling,
Improve construction efficiency.
Since stainless steel band has excellent electromagnetic shielding capability, the shielding construction outside cable core is eliminated, simplifies structure, drop
Low cost.
Detailed description of the invention
The technical solution of the application is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the fire resisting cable for digital communication structural schematic diagram of the embodiment of the present application.
Appended drawing reference in figure are as follows: transmission line 11；Foam flame retardant filler 2；First flame retardant coating 31；Second flame retardant coating 32；
Lock armo layer 4.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the application and simplifies description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
The limitation of the application protection scope.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the invention, unless separately
It is described, the meaning of " plurality " is two or more.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in this application.
It is described in detail the technical solution of the application below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment
The present embodiment provides a kind of fire resisting cable for digital communication, as shown in Figure 1, comprising:
Cable core, four groups of lines pair including being arranged into two rows two column, every group of line is to including two mutually twisted transmission lines 11；
Lock armo layer 4 is set in the outside of four groups of lines pair；
Flame retardant coating is arranged in 4 inner surface of lock armo layer；
Foam flame retardant filler 2 is filled between the flame retardant coating and the line pair, by four groups of lines to fixation；
The flame retardant coating is divided into first flame retardant coating 31 and second flame retardant coating 32,31 material of the first flame retardant coating
For ceramic low smoke halogen-free flame-retardant polyolefin, second flame retardant coating 32 includes asbestos cloth and fireproof coating, the fireproof coating
It is applied on asbestos cloth, and is filled in asbestos cloth hollow out position；
The transmission line 11 includes the high-density polyethylene of conductor, the mica tape of the wrapped conductor, the cladding mica tape
Alkene insulating layer.
The fire resisting cable for digital communication of the present embodiment, occur fire when, the first flame retardant coating 31 forms shell, play insulation,
Oxygen barrier effect guarantees that cable works normally；Second flame retardant coating 32 has good fire resistance.
For foam flame retardant filler 2 since air bubble exists, dielectric constant is smaller, not will increase line diameter；In addition, filling
Object is capable of fixing 4 pairs of lines, improves the stability of cable transmission characteristic.
For foam flame retardant filler 2 since air bubble exists, dielectric constant is smaller, not will increase line diameter；In addition, filling
Object is capable of fixing line pair, improves the stability of cable transmission characteristic；
Second flame retardant coating, 32 heat resistance is good, simultaneously because having smeared fireproof coating, compensates at asbestos cord woven gap
The disadvantage of heat resistance difference；
The mica tape of transmission line 11 has good heat resistance, and the high density polyethylene (HDPE) insulating layer for coating the mica tape is resistance to
Mill property, electrical insulating property, toughness and cold resistance are preferable.
Preferably, the fire resisting cable for digital communication of the present embodiment, the Duplication of the mica tape is 50% or more.
Preferably, the fire resisting cable for digital communication of the present embodiment, 4 material of lock armo layer are stainless steel.This implementation
The lock armo of example uses helical structure, improves cable bend performance, tension/lateral pressure resistant and corrosion-resistant level, cable can be straight
Laying is connect, is routed from poling, construction efficiency is improved.Since stainless steel band has excellent electromagnetic shielding capability, cable is eliminated
Shielding construction outside core simplifies structure, reduces cost.
Preferably, the fire resisting cable for digital communication of the present embodiment, the thickness 0.2mm of the lock armo layer 4.
Preferably, the fire resisting cable for digital communication of the present embodiment, the asbestos cloth is by asbestos twisted rope and braided asbestos square packing shuffling
It is formed, wherein the quality of the asbestos twisted rope accounts for 30-40%, the quality of the braided asbestos square packing accounts for 60-70%.Braided asbestos square packing is suitble to
Fireproof coating is adsorbed, asbestos twisted rope, which plays, tightly fills in closed effect, and two kinds of asbestos cord mutual cooperations both play absorption fire prevention
Coating improves fire protecting performance, and there is certain softness to be suitble to wind cable core again.
Preferably, the fire resisting cable for digital communication of the present embodiment, first flame retardant coating 31 and second flame retardant coating 32
With the ratio between the thickness of the lock armo layer 4 are as follows: 1:0.5-0.6:0.5-0.8.Comprehensive performance, i.e. fire resistance can be obtained
Energy, bending property, tension/lateral pressure resistant and the corrosion-resistant effect for obtaining synthesis.
Preferably, the fire resisting cable for digital communication of the present embodiment, fireproof coating are added by tertiary acrylic emulsion water-based material and are prevented fires
Fire retardant, plasticizer composition.
It is enlightenment with the above-mentioned desirable embodiment according to the application, through the above description, relevant staff is complete
Full various changes and amendments can be carried out in the range of without departing from this item application technical idea.The technology of this item application
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (6)
1. a kind of fire resisting cable for digital communication characterized by comprising
Cable core, four groups of lines pair including being arranged into two rows two column, every group of line is to including two mutually twisted transmission lines (11)；
Lock armo layer (4), is set in the outside of four groups of lines pair；
Flame retardant coating is arranged in lock armo layer (4) inner surface；
Foam flame retardant filler (2), is filled between the flame retardant coating and the line pair, by four groups of lines to fixation；
The flame retardant coating is divided into first flame retardant coating (31) and second flame retardant coating (32), the first flame retardant coating (31) material
Material is ceramic low smoke halogen-free flame-retardant polyolefin, and second flame retardant coating (32) includes asbestos cloth and fireproof coating, the fire prevention
Coating material is filled in asbestos cloth hollow out position on asbestos cloth, and fireproof coating is added by tertiary acrylic emulsion water-based material and prevented fires
Fire retardant, plasticizer composition；
The transmission line (11) includes the high density polyethylene (HDPE) of conductor, the mica tape of the wrapped conductor, the cladding mica tape
Insulating layer.
2. fire resisting cable for digital communication according to claim 1, which is characterized in that the Duplication of the mica tape is 50%
More than.
3. fire resisting cable for digital communication according to claim 1, which is characterized in that lock armo layer (4) material is
Stainless steel.
4. fire resisting cable for digital communication according to claim 3, which is characterized in that the thickness of the lock armo layer (4)
0.2mm。
5. fire resisting cable for digital communication according to claim 1-4, which is characterized in that the asbestos cloth is by asbestos
It turns round rope to be formed with braided asbestos square packing shuffling, wherein the quality of the asbestos twisted rope accounts for 30-40%, the quality of the braided asbestos square packing is accounted for
60-70%.
6. fire resisting cable for digital communication according to claim 5, which is characterized in that first flame retardant coating (31) with it is described
The ratio between the thickness of second flame retardant coating (32) and the lock armo layer (4) are as follows: 1:0.5-0.6:0.5-0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423480.7A CN109411147A (en) | 2018-11-27 | 2018-11-27 | A kind of fire resisting cable for digital communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423480.7A CN109411147A (en) | 2018-11-27 | 2018-11-27 | A kind of fire resisting cable for digital communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109411147A true CN109411147A (en) | 2019-03-01 |
Family
ID=65455707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811423480.7A Pending CN109411147A (en) | 2018-11-27 | 2018-11-27 | A kind of fire resisting cable for digital communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109411147A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903803A (en) * | 2014-03-04 | 2014-07-02 | 江苏珠影特种电缆有限公司 | Three-core medium-pressure waterproof and fire-resistant cable |
| CN205751652U (en) * | 2016-07-06 | 2016-11-30 | 宝上电缆有限公司 | A kind of Novel fire-resistant controls cable |
| CN205881497U (en) * | 2016-06-28 | 2017-01-11 | 湖北普鸿德电缆有限公司 | High fire -retardant fire resisting cable of environment -friendly |
| US20180096753A1 (en) * | 2015-06-05 | 2018-04-05 | Leoni Kabel Gmbh | Data cable |
-
2018
- 2018-11-27 CN CN201811423480.7A patent/CN109411147A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903803A (en) * | 2014-03-04 | 2014-07-02 | 江苏珠影特种电缆有限公司 | Three-core medium-pressure waterproof and fire-resistant cable |
| US20180096753A1 (en) * | 2015-06-05 | 2018-04-05 | Leoni Kabel Gmbh | Data cable |
| CN205881497U (en) * | 2016-06-28 | 2017-01-11 | 湖北普鸿德电缆有限公司 | High fire -retardant fire resisting cable of environment -friendly |
| CN205751652U (en) * | 2016-07-06 | 2016-11-30 | 宝上电缆有限公司 | A kind of Novel fire-resistant controls cable |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190301 |
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| RJ01 | Rejection of invention patent application after publication |