CN111640529A - Flexible fireproof cable - Google Patents

Flexible fireproof cable Download PDF

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Publication number
CN111640529A
CN111640529A CN202010456436.7A CN202010456436A CN111640529A CN 111640529 A CN111640529 A CN 111640529A CN 202010456436 A CN202010456436 A CN 202010456436A CN 111640529 A CN111640529 A CN 111640529A
Authority
CN
China
Prior art keywords
copper core
layer
insulating layer
cable
shielding 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
Application number
CN202010456436.7A
Other languages
Chinese (zh)
Inventor
吴长凯
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.)
Shenzhen Aowei Cable Manufacturing Co ltd
Original Assignee
Shenzhen Aowei Cable Manufacturing 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 Shenzhen Aowei Cable Manufacturing Co ltd filed Critical Shenzhen Aowei Cable Manufacturing Co ltd
Priority to CN202010456436.7A priority Critical patent/CN111640529A/en
Publication of CN111640529A publication Critical patent/CN111640529A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0208Cables with several layers of insulating material
    • H01B7/0216Two layers
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/302Polyurethanes or polythiourethanes; Polyurea or polythiourea
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/04Flexible cables, conductors, or cords, e.g. trailing cables
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22Metal wires or tapes, e.g. made of steel
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28Protection against damage caused by moisture, corrosion, chemical attack or weather
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Abstract

The invention provides a flexible fireproof cable, and relates to the technical field of cables. The cable comprises a cable main body and a copper core arranged in the cable main body, wherein the cable main body comprises an insulating layer, a shielding layer, a heat insulation layer, a reinforcing layer and a sheath layer, the copper core comprises a first copper core, a second copper core and a third copper core, the first copper core, the second copper core and the third copper core are arranged in a delta shape, the insulating layer comprises a first insulating layer and a second insulating layer, the shielding layer comprises a first shielding layer and a second shielding layer, and the first shielding layer and the first insulating layer are sequentially coated on the first copper core, the second copper core and the third copper core. The anti-twist high-flexibility cable disclosed by the invention can keep good anti-twist, oil-proof, cold-proof and weather-proof atmospheric aging performances and keep higher softness.

Description

Flexible fireproof cable
Technical Field
The invention relates to the technical field of cables, in particular to a flexible fireproof cable.
Background
Cables are an important component of power transmission. Since the cable is often erected in a severe environment, the cable should have good properties of low temperature resistance, corrosion resistance, oil resistance, weather-proof atmospheric aging resistance and the like. The insulation and jacket layers of the cable play a critical role in the above-mentioned properties of the cable. In order to make the cable have good performances of torsion resistance, oil resistance, cold resistance, weather-proof atmospheric aging resistance and the like, the sheath layer and the insulating layer should keep high flexibility at the ambient temperature so as to reduce internal stress generated during torsion and prevent the cable from structural damage.
Disclosure of Invention
Aiming at the defects in the problems, the invention provides the flexible fireproof cable, so that the anti-twisting high-flexibility cable can keep good anti-twisting, oil-proof, cold-proof and weather-proof atmospheric aging properties and keep high softness.
In order to solve the above problems, the present invention provides a flexible fireproof cable, including a cable main body and a copper core disposed in the cable main body, wherein the cable main body includes an insulating layer, a shielding layer, a heat insulation layer, a reinforcing layer and a sheath layer, the copper core includes a first copper core, a second copper core and a third copper core, the first copper core, the second copper core and the third copper core are disposed in a delta shape, the insulating layer includes a first insulating layer and a second insulating layer, the shielding layer includes the first shielding layer and a second shielding layer, and the first copper core, the second copper core and the third copper core are sequentially coated with the first shielding layer and the first insulating layer.
Preferably, the first insulating layer and the second insulating layer are both made of thermoplastic elastic insulators.
Preferably, the reinforcing layer is formed by winding steel wires.
Preferably, the first shielding layer and the second shielding layer are woven by copper wires.
Preferably, the thermal insulation layer is a glass fiber layer coated with silicone rubber.
Compared with the prior art, the invention has the following advantages:
the anti-twist high-flexibility cable disclosed by the invention can keep good anti-twist, oil-proof, cold-proof and weather-proof atmospheric aging performances and keep higher softness.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings and examples, which are not intended to limit the present invention.
As shown in fig. 1, the embodiment of the invention includes a cable main body 1 and a copper core arranged in the cable main body 1, the cable main body 1 includes an insulating layer, a shielding layer, a heat insulation layer 2, a reinforcing layer 3 and a sheath layer 4, the copper core includes a first copper core 5, a second copper core 6 and a third copper core 7, the first copper core 5, the second copper core 6 and the third copper core 7 are arranged in a delta shape, the insulating layer includes a first insulating layer 8 and a second insulating layer 9, the shielding layer includes a first shielding layer 10 and a second shielding layer 11, and the first copper core 5, the second copper core 6 and the third copper core 7 are sequentially wrapped with the first shielding layer 10 and the first insulating layer 8.
The first insulating layer 8 and the second insulating layer 9 are both made of thermoplastic elastic insulators, and the thermoplastic elastic insulators are made of thermoplastic polyurethane.
The reinforcing layer 3 is formed by winding steel wires.
The first shielding layer 10 and the second shielding layer 11 are both woven by copper wires.
The heat insulation layer 2 is a glass fiber layer coated with silicon rubber.
According to the invention, the insulating layer, the shielding layer, the heat insulation layer 2, the reinforcing layer 3 and the sheath layer 4 are combined together, and through experimental optimization, the cable has strong bending deformation resistance, is reasonable in structure, is not easy to bend and damage, is long in service life, and is beneficial to popularization and application.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
In the description of the present specification, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of describing the technical solutions of the present patent and for simplification of the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present patent application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this patent application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this specification, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present specification can be understood by those of ordinary skill in the art as appropriate.
In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (5)

1. The utility model provides a flexible fireproof cable, is in including cable main part and setting copper core in the cable main part, a serial communication port, cable main part includes insulating layer, shielding layer, insulating layer, enhancement layer and restrictive coating, the copper core includes first copper core, second copper core and third copper core, first copper core the second copper core with the third copper core is the setting of article font, the insulating layer includes first insulating layer and second insulating layer, the shielding layer includes first shielding layer and second shielding layer, first copper core the second copper core with all the cladding in proper order on the third copper core have first shielding layer with first insulating layer.
2. A flexible fire-resistant cable according to claim 1, wherein said first insulating layer and said second insulating layer are each made of a thermoplastic elastomer insulator.
3. A flexible fire-resistant cable according to claim 1, wherein said reinforcing layer is wound of steel wire.
4. The flexible fireproof cable of claim 1, wherein the first shielding layer and the second shielding layer are braided with copper wires.
5. A flexible fire-protected cable according to claim 1, wherein said insulating layer is a glass fibre layer coated with silicone rubber.
CN202010456436.7A 2020-05-26 2020-05-26 Flexible fireproof cable Pending CN111640529A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010456436.7A CN111640529A (en) 2020-05-26 2020-05-26 Flexible fireproof cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010456436.7A CN111640529A (en) 2020-05-26 2020-05-26 Flexible fireproof cable

Publications (1)

Publication Number Publication Date
CN111640529A true CN111640529A (en) 2020-09-08

Family

ID=72331630

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010456436.7A Pending CN111640529A (en) 2020-05-26 2020-05-26 Flexible fireproof cable

Country Status (1)

Country Link
CN (1) CN111640529A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205028678U (en) * 2015-09-28 2016-02-10 四川新蓉电缆有限责任公司 Medium voltage fireproof cable
CN205302999U (en) * 2016-01-18 2016-06-08 明达线缆集团有限公司 Metal sheath inorganic mineral insulation flexible fireproof cable
CN107301898A (en) * 2017-06-19 2017-10-27 四川弘毅智慧知识产权运营有限公司 A kind of multiple shield cable
CN107731414A (en) * 2017-11-28 2018-02-23 安徽恒晶电缆集团有限公司 A kind of heat resistance silicon rubber insulating control cable
CN109637733A (en) * 2018-12-05 2019-04-16 安徽华能电缆集团有限公司 A kind of high voltage flame resistant cable and preparation method thereof
CN209199664U (en) * 2019-01-07 2019-08-02 青岛华信电缆制造有限公司 A kind of anti-interference flame retardant cable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205028678U (en) * 2015-09-28 2016-02-10 四川新蓉电缆有限责任公司 Medium voltage fireproof cable
CN205302999U (en) * 2016-01-18 2016-06-08 明达线缆集团有限公司 Metal sheath inorganic mineral insulation flexible fireproof cable
CN107301898A (en) * 2017-06-19 2017-10-27 四川弘毅智慧知识产权运营有限公司 A kind of multiple shield cable
CN107731414A (en) * 2017-11-28 2018-02-23 安徽恒晶电缆集团有限公司 A kind of heat resistance silicon rubber insulating control cable
CN109637733A (en) * 2018-12-05 2019-04-16 安徽华能电缆集团有限公司 A kind of high voltage flame resistant cable and preparation method thereof
CN209199664U (en) * 2019-01-07 2019-08-02 青岛华信电缆制造有限公司 A kind of anti-interference flame retardant cable

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