CN111028994A - 6A-type shielding high-flame-retardant cable and processing method thereof - Google Patents

6A-type shielding high-flame-retardant cable and processing method thereof Download PDF

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Publication number
CN111028994A
CN111028994A CN201911158045.0A CN201911158045A CN111028994A CN 111028994 A CN111028994 A CN 111028994A CN 201911158045 A CN201911158045 A CN 201911158045A CN 111028994 A CN111028994 A CN 111028994A
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CN
China
Prior art keywords
double
retardant
flame
wrapped
shielding
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
Application number
CN201911158045.0A
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Chinese (zh)
Inventor
张�林
丁先分
叶迪辉
丁玉生
周佳瑜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Korea Telecom Technology Co Ltd
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Ningbo Korea Telecom Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningbo Korea Telecom Technology Co Ltd filed Critical Ningbo Korea Telecom Technology Co Ltd
Priority to CN201911158045.0A priority Critical patent/CN111028994A/en
Publication of CN111028994A publication Critical patent/CN111028994A/en
Pending legal-status Critical Current

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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
    • H01B7/29—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
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • 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
    • H01B7/0208—Cables with several layers of insulating material
    • H01B7/0216—Two layers
    • 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
    • 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
    • H01B9/024—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of braided metal wire

Abstract

The invention discloses a 6A-type shielding high-flame-retardant cable and a processing method thereof, wherein the 6A-type shielding high-flame-retardant cable structure comprises an inner conductor, a double-insulation layer, an inner sheath, a glass fiber flame-retardant wrapping tape, a double shield and an outer sheath, and the processing method comprises the steps of conductor preheating, insulation extrusion, cabling, inner protection, wrapping of the glass fiber flame-retardant wrapping tape, wrapping of the double shield and outer protection.

Description

6A-type shielding high-flame-retardant cable and processing method thereof
Technical Field
The invention relates to the field of cables, in particular to a 6A-type shielding high-flame-retardant cable and a processing method thereof.
Background
The shielding flame-retardant cable has shielding and flame-retardant performances, can play a role in protecting the cable in the use process of the cable, can reduce cable interference, can have certain fireproof performance in the case of fire, and is a cable frequently used in electric energy transmission. The common shielding flame-retardant cable only has one insulating layer, the insulating property is lower, the resistance value of the cable is larger, and the transmission cost is increased.
For example, patent CN201910391557.5 discloses a power cable processing method, which specifically includes the following steps: s1, manufacturing a cable core conductor, a1, drawing a copper metal material, a2, twisting a copper wire, a3, hardening removal treatment of the cable core conductor, a4 and cable core combination treatment, S2, manufacturing an insulated cable core, S3, manufacturing a cable protective layer, S4 and cable quality inspection control, and the invention relates to the technical field of power cable processing.
The product of the patent only has one insulating layer, so that the resistance value of the cable cannot be effectively reduced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a 6A-type shielding high-flame-retardant cable which uses double-layer insulation, obviously reduces the dielectric constant of an insulation layer, improves the quality of a transmission line, reduces the cost, uses a natural color material as an inner layer, does not need to change the color of an inner layer extruder, only needs to change the color of an outer layer, and is greatly convenient to produce and a processing method, so as to solve the defects caused in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a 6A class shielding high flame retardant cable, includes that 6A class shielding high flame retardant cable structure includes inner conductor, double insulation layer, inner sheath, the fire-retardant band of glass fibre, double-shielding and oversheath, and double-deck insulating parcel inner conductor constitutes the sinle silk, and eight groups of sinle silks pair twist stranding, inner sheath nestification are in the outside of a plurality of sinle silks pair twist stranding, and the fire-retardant band of glass fibre nestification is in the outside of inner sheath, and double-shielding nestification is in the outside of the fire-retardant band of glass fibre, and the oversheath nestification is in.
A method for processing a 6A-type shielding high-flame-retardant cable comprises the following steps:
(1) conductor preheating
Preheating the inner conductor at the preheating temperature of 80 ℃;
(2) insulation extrusion
The inner conductor is pulled to cover the double-layer insulating sleeve in the extruder through the extruder, and then is sent into cold water to be cooled and shaped to form a wire core;
(3) pair-twisted cabling
Twisting a plurality of groups of wire cores to form a cable main body;
(4) internal protection
A cross filling frame is erected between the cable main body bodies and wraps the inner sheath;
(5) glass fiber wrapped flame-retardant wrapping tape
A glass fiber flame-retardant wrapping tape is wrapped outside the inner sheath;
(6) package double shielding
Wrapping a double shielding layer outside the glass fiber flame-retardant wrapping tape;
(7) external protection
And wrapping the outer sheath outside the double shielding layers.
Preferably, the double insulation layers comprise a natural color inner insulation layer and an outer insulation layer, the natural color inner insulation layer is wrapped on the outer portion of the inner conductor, and the outer insulation layer is wrapped on the outer portion of the natural color inner insulation layer.
Preferably, the inner conductor is a single-stranded copper wire, a tinned stranded copper wire or a silvered stranded copper wire.
Preferably, the double shielding comprises aluminum foil shielding and braided shielding, the aluminum foil shielding package is arranged outside the glass fiber flame-retardant wrapping tape, and the braided shielding package is arranged outside the aluminum foil shielding.
Preferably, a cross filling frame is arranged in the inner sheath and arranged between the wire cores.
Preferably, the glass fiber flame-retardant wrapping tape is an alkali-free glass fiber tape, the thickness of the glass fiber flame-retardant wrapping tape is not less than 0.016mm, the width of the glass fiber flame-retardant wrapping tape is 18-35mm, and the strength of the glass fiber flame-retardant wrapping tape is more than 30N/25 mm.
The beneficial effect of adopting above technical scheme is: the invention relates to a 6A-class shielding high-flame-retardant cable and a processing method thereof, wherein double-layer insulation is used, the dielectric constant of an insulating layer is obviously reduced, the quality of a transmission line is improved, the cost is reduced, a natural color material is used as an inner layer, an inner layer extruder does not need to change colors, only the color of an outer layer needs to be changed, the production is greatly facilitated, the double-layer insulation layer comprises a natural color inner insulation layer and an outer insulation layer, the natural color inner insulation layer is wrapped and arranged outside an inner conductor, the outer insulation layer is wrapped and arranged outside the natural color inner insulation layer, the double-layer insulation structure of the structure can effectively improve the insulation performance, the inner conductor is a single-stranded copper wire or a tinned stranded copper wire or a silvered stranded copper wire, the inner conductor of the structure can be selected according to different use conditions, the applicability of the cable is wider, the double-shielding comprises an aluminum foil shield and a braided, the woven shielding package is arranged outside the aluminum foil shielding, the double-shielding structure of the structure can effectively shield electromagnetic interference, a cross filling frame is arranged in the inner sheath, the cross filling frame is arranged between the wire cores, the structure can effectively realize a supporting cable structure, the glass fiber flame-retardant wrapping tape uses an alkali-free glass fiber tape, the thickness is not less than 0.016mm, the width is 18-35mm, the strength of the fiber tape is greater than 30N/25mm, the glass fiber flame-retardant wrapping tape of the structure has better performance and higher strength, and the service life of the cable can be effectively prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
wherein, 1, an inner conductor; 2. a double insulating layer; 3. an inner sheath; 4. a glass fiber flame-retardant wrapping tape; 5. double shielding; 6. an outer sheath; 7. a natural color inner insulating layer; 8. an outer insulating layer; 9. shielding by aluminum foil; 10. weaving shielding; 11. a cross filling frame; 12. aramid yarn.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 shows a specific embodiment of the invention: the utility model provides a 6A class shielding high flame retardant cable, includes that 6A class shielding high flame retardant cable structure includes inner conductor 1, double-insulation layer 2, inner sheath 3, the fire-retardant band 4 of glass fibre, double-shielding 5 and oversheath 6, and double-deck insulation parcel inner conductor 1 constitutes the sinle silk, and eight group's sinle silk pair twist stranding are cabled, and 3 nestings of inner sheath are in the outside of a plurality of sinle silk pair twist stranding, and 4 nestings of the fire-retardant band of glass fibre are in the outside of inner sheath 3, and 5 nestings of double-shielding are in the outside of the fire-retardant band 4 of glass fibre, and 6.
Double insulation layer 2 includes true qualities inner insulating layer 7 and outer insulating layer 8, and true qualities inner insulating layer 7 parcel sets up in the outside of inner conductor 1, and outer insulating layer 8 parcel sets up in the outside of true qualities inner insulating layer 7.
The inner conductor 1 is a single-stranded copper wire, and aramid yarns 12 are arranged outside the inner conductor 1.
The double-shielding 5 comprises an aluminum foil shielding 9 and a braided shielding 10, the aluminum foil shielding 9 is wrapped and arranged outside the glass fiber flame-retardant wrapping tape 4, and the braided shielding 10 is wrapped and arranged outside the aluminum foil shielding 9.
Be provided with cross filling frame 11 in the inner sheath 3, cross filling frame 11 sets up between the sinle silk, is provided with aramid yarn 12 between the cross filling frame 11.
A method for processing a 6A-type shielding high-flame-retardant cable comprises the following steps:
(1) conductor preheating
Preheating the inner conductor 1 at the preheating temperature of 80 ℃;
(2) insulation extrusion
The inner conductor 1 is drawn by an extruder to be coated with a double-layer insulating sleeve in the extruder, and then is sent into cold water to be cooled and shaped to form a wire core;
(3) pair-twisted cabling
Twisting a plurality of groups of wire cores to form a cable main body;
(4) internal protection
A cross filling frame is erected between the cable main body bodies and wraps the inner sheath 3;
(5) glass fiber wrapped flame-retardant wrapping tape
The glass fiber flame-retardant wrapping tape 4 is wrapped outside the inner sheath 3, an alkali-free glass fiber tape is used for the glass fiber flame-retardant wrapping tape 4, the thickness is not less than 0.016mm, the width is 25mm, and the strength of the fiber tape is more than 30N/25 mm;
(6) package double shielding
The outer side of the glass fiber flame-retardant wrapping belt 4 is wrapped with a double-shielding 5 layer;
(7) external protection
The outer sheath 6 is wrapped outside the double-shielding 5 layer.
The invention relates to a 6A-class shielding high-flame-retardant cable and a processing method thereof, wherein double-layer insulation is used, the dielectric constant of an insulating layer is obviously reduced, the quality of a transmission line is improved, the cost is reduced, a natural color material is used as an inner layer, an inner layer extruder does not need to change colors, only the color of an outer layer needs to be changed, the production is greatly facilitated, the double-layer insulation layer comprises a natural color inner insulation layer and an outer insulation layer, the natural color inner insulation layer is wrapped and arranged outside an inner conductor, the outer insulation layer is wrapped and arranged outside the natural color inner insulation layer, the double-layer insulation structure of the structure can effectively improve the insulation performance, the inner conductor is a single-stranded copper wire or a tinned stranded copper wire or a silvered stranded copper wire, the inner conductor of the structure can be selected according to different use conditions, the applicability of the cable is wider, the double-shielding comprises an aluminum foil shield and a braided, the woven shielding package is arranged outside the aluminum foil shielding, the double-shielding structure of the structure can effectively shield electromagnetic interference, a cross filling frame is arranged in the inner sheath, the cross filling frame is arranged between the wire cores, the structure can effectively realize a supporting cable structure, the glass fiber flame-retardant wrapping tape uses an alkali-free glass fiber tape, the thickness is not less than 0.016mm, the width is 18-35mm, the strength of the fiber tape is greater than 30N/25mm, the glass fiber flame-retardant wrapping tape of the structure has better performance and higher strength, and the service life of the cable can be effectively prolonged.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims (7)

1. The utility model provides a 6A class shielding high flame retardant cable, a serial communication port, including 6A class shielding high flame retardant cable structure includes inner conductor (1), double insulation layer (2), inner sheath (3), fine fire-retardant band (4) of glass, double-shielded (5) and oversheath (6), double-deck insulating parcel inner conductor (1) constitution sinle silk, eight group's sinle silk pair twist stranding are cabled, inner sheath (3) nestification is in the outside of a plurality of sinle silk pair twist stranding, fine fire-retardant band (4) nestification of glass is in the outside of inner sheath (3), double-shielded (5) nestification is in the outside of fine fire-retardant band (4), oversheath (6) nestification is in the outside of double-shielded (5).
2. The class 6A shielded high flame retardant cable according to claim 1, wherein the double insulation layer (2) comprises a natural color inner insulation layer (7) and an outer insulation layer (8), the natural color inner insulation layer (7) is wrapped and arranged outside the inner conductor (1), and the outer insulation layer (8) is wrapped and arranged outside the natural color inner insulation layer (7).
3. The shielded high flame retardant cable of claim 1, wherein the inner conductor (1) is a single stranded copper wire or a tin-plated stranded copper wire or a silver-plated stranded copper wire.
4. The shielded high flame-retardant cable of claim 1, wherein the double shield (5) comprises an aluminum foil shield (9) and a braided shield (10), the aluminum foil shield (9) is wrapped and arranged outside the glass fiber flame-retardant wrapping tape (4), and the braided shield (10) is wrapped and arranged outside the aluminum foil shield (9).
5. The shielded high flame-retardant cable of claim 1, wherein the inner sheath (3) is provided with cross-shaped filling frames (11), and the cross-shaped filling frames (11) are arranged between the cores.
6. A processing method of a 6A-type shielding high-flame-retardant cable is characterized by comprising the following steps:
(1) conductor preheating
Preheating the inner conductor (1) at the preheating temperature of 80 ℃;
(2) insulation extrusion
The inner conductor (1) is pulled to cover the double-layer insulating sleeve in the extruder through the extruder, and then is sent into cold water to be cooled and shaped to form a wire core;
(3) pair-twisted cabling
Twisting a plurality of groups of wire cores to form a cable main body;
(4) internal protection
A cross filling frame is erected among the cable main body, and an inner sheath (3) is wrapped;
(5) glass fiber wrapped flame-retardant wrapping tape
A glass fiber flame-retardant wrapping belt (4) is wrapped outside the inner sheath (3);
(6) package double shielding
The outer side of the glass fiber flame-retardant wrapping tape (4) is wrapped with a double-shielding (5) layer;
(7) external protection
The outer part of the double-shielding layer (5) is wrapped with an outer sheath (6).
7. The processing method of the 6A-type shielding high-flame-retardant cable according to claim 5, wherein the glass fiber flame-retardant wrapping tape (4) is an alkali-free glass fiber tape with a thickness of not less than 0.016mm and a width of 18-35mm, and the strength of the fiber tape is more than 30N/25 mm.
CN201911158045.0A 2019-11-22 2019-11-22 6A-type shielding high-flame-retardant cable and processing method thereof Pending CN111028994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911158045.0A CN111028994A (en) 2019-11-22 2019-11-22 6A-type shielding high-flame-retardant cable and processing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911158045.0A CN111028994A (en) 2019-11-22 2019-11-22 6A-type shielding high-flame-retardant cable and processing method thereof

Publications (1)

Publication Number Publication Date
CN111028994A true CN111028994A (en) 2020-04-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101393782A (en) * 2008-10-10 2009-03-25 江苏帝一集团有限公司 Low-smoke halogen-free flame-retardant digital communication cable for ship
CN102364587A (en) * 2011-10-25 2012-02-29 江苏亨通线缆科技有限公司 Low-attenuation electric wire cable
CN207690556U (en) * 2017-11-27 2018-08-03 广州思普通信设备有限公司 One kind surpassing six type shielding lines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101393782A (en) * 2008-10-10 2009-03-25 江苏帝一集团有限公司 Low-smoke halogen-free flame-retardant digital communication cable for ship
CN102364587A (en) * 2011-10-25 2012-02-29 江苏亨通线缆科技有限公司 Low-attenuation electric wire cable
CN207690556U (en) * 2017-11-27 2018-08-03 广州思普通信设备有限公司 One kind surpassing six type shielding lines

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Application publication date: 20200417

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