CN105913945A - Heat insulation-type cable - Google Patents

Heat insulation-type cable Download PDF

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Publication number
CN105913945A
CN105913945A CN201610342516.3A CN201610342516A CN105913945A CN 105913945 A CN105913945 A CN 105913945A CN 201610342516 A CN201610342516 A CN 201610342516A CN 105913945 A CN105913945 A CN 105913945A
Authority
CN
China
Prior art keywords
cable
thickness
inner sheath
cable core
heat insulation
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
CN201610342516.3A
Other languages
Chinese (zh)
Inventor
董建深
贺云芳
刘永伟
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.)
WUXI NEW SUNSHINE CABLE CO Ltd
Original Assignee
WUXI NEW SUNSHINE CABLE 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 WUXI NEW SUNSHINE CABLE CO Ltd filed Critical WUXI NEW SUNSHINE CABLE CO Ltd
Priority to CN201610342516.3A priority Critical patent/CN105913945A/en
Publication of CN105913945A publication Critical patent/CN105913945A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC 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
    • HELECTRICITY
    • H01ELECTRIC 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
    • HELECTRICITY
    • H01ELECTRIC 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
    • H01ELECTRIC 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
    • H01ELECTRIC 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
    • H01ELECTRIC 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
    • H01B7/282Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • HELECTRICITY
    • H01ELECTRIC 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
    • H01B7/295Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables
    • H01B9/02Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • 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

Landscapes

  • Insulated Conductors (AREA)

Abstract

The invention discloses a heat insulation-type cable, which comprises a cable core. An inner sheath and an outer sheath are extruded outside the cable core; the cable core is composed of a triangular support, three insulated wire cores mutually extruded inside the triangular support and ground wires located at three vertex angles of the triangular support; a ceramic fiber is arranged between the triangular support and the inner sheath; and an elastic buffer layer with a thickness of 2 to 5 mm, a metal armored layer with a thickness of 2 to 4 mm and a rock wool heat insulation layer with a thickness of 3 to 6 mm are sequentially arranged between the inner sheath and the outer sheath. Through arranging multiple heat insulation structures, the cable of the invention has the advantages of good heat insulation performance, high temperature resistance, good heat stability, low heat conductivity and the like.

Description

A kind of heat preservation type cable
Technical field
The present invention relates to power cable field, refer in particular to a kind of heat preservation type cable.
Background technology
At present, along with Chinese society expanding economy, cable consumption increases rapidly, the prescription of cable is the most constantly improved, the cable such as used in the field such as computer, machine room is the highest to aspect requirements such as the high and low temperature resistance of cable, oil resistant, mechanical resistant damage, interference free performances.Only meet the requirements, could more preferably ensure the production and application of cable.
The cable of prior art, although fire resistance is good, but effect of heat insulation is limited, bendability is poor, affects the current-carrying capacity that cable is properly functioning.
The cable of prior art, cable conductor easily loosens, and when being squeezed or bend, easily break core so that cable cannot work.
Summary of the invention
The technical problem to be solved there is provided a kind of lightweight, high temperature resistant, Heat stability is good, thermal conductivity are low, specific heat is little, heat preservation type cable.
A kind of heat preservation type cable of the present invention, including cable core, extrudes inner sheath and oversheath outside cable core;Described cable core by triangular supports, three squeeze mutually the insulated wire cores being arranged in triangular supports and be positioned at the ground wire at three drift angles of triangular supports and constitute;Ceramic fibre silk it is provided with between triangular supports and inner sheath;Be sequentially provided with between inner sheath and oversheath thickness be the elastic cord breaker of 2-5mm, thickness be the metal armor layers of 2-4mm and rock wool thermal insulation layer that thickness is 3-6mm.
Improving further, insulating barrier that described insulated wire cores by aluminium conductor, is extruded in outside aluminium conductor successively, insulation screen and the silica gel fireproof casing being arranged on outside insulation screen are constituted.
Improving further, described metal armor layers is aluminum copper-clad armor.
The beneficial effects of the present invention is:
1, the cable core of the present invention is provided with triangular supports, plays the protective effect to insulated wire cores so that core is not easily broken;
2, the present invention is provided with ceramic fibre silk, not only makes cable have the non-ferrous metal erosivenesses such as lightweight, high temperature resistant, Heat stability is good, thermal conductivity are low, specific heat is little and mechanical resistant vibrations, also have anti-molten tactile aluminum, zinc;
3, cable is additionally provided with rock wool thermal insulation layer so that the adiabatic heat-proof quality of cable is good, and under normal temperature condition, the thermal conductivity of (about 25 DEG C) is generally between 0.03~0.047W/ (moK);
4, the insulated wire cores outermost layer of the present invention is cased with silica gel fireproof casing so that cable has resistance to elevated temperatures, thermal and insulating performance, fire resistance, electrical insulation capability, chemical stability, weather-resistant performance, cold-resistant, water-fast, oil resistant, resistance to ozone, proof voltage, resistance to electric arc, corona-resistance property etc., particularly safety and environmental protection performance, is the optimal substitute products of the hazardness goods such as asbestos;After sulfuration can in-260 ° of C temperature ranges of-65 ° of C life-time service keep its resilient flexible performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
As it is shown in figure 1, a kind of heat preservation type cable of the present invention, including cable core, outside cable core, extrude inner sheath 8 and oversheath 12;Described cable core is squeezed mutually the insulated wire cores being arranged in triangular supports and is positioned at the ground wire 2 at 1 three drift angles of triangular supports and constitutes by triangular supports 1, three;Insulating barrier 4 that described insulated wire cores by aluminium conductor 3, is extruded in outside aluminium conductor successively, insulation screen 5 and the silica gel fireproof casing 6 being arranged on outside insulation screen are constituted;Between triangular supports 1 and inner sheath 8, it is provided with ceramic fibre silk 7, not only makes cable have the non-ferrous metal erosivenesses such as lightweight, high temperature resistant, Heat stability is good, thermal conductivity are low, specific heat is little and mechanical resistant vibrations, also have anti-molten tactile aluminum, zinc;Be sequentially provided with elastic cord breaker 9 that thickness is 2-5mm between inner sheath 8 and oversheath 12, thickness is the metal armor layers 10 of 2-4mm and rock wool thermal insulation layer 11 that thickness is 3-6mm, the adiabatic heat-proof quality making cable is good, and under normal temperature condition, the thermal conductivity of (about 25 DEG C) is generally between 0.03~0.047W/ (moK).
The invention provides a kind of thinking and the method for heat preservation type cable; the method and the approach that implement this technical scheme are a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.Each component part the clearest and the most definite in the present embodiment all can use prior art to be realized.

Claims (3)

1. a heat preservation type cable, including cable core, extrudes inner sheath and oversheath outside cable core;It is characterized in that: described cable core by triangular supports, three squeeze mutually the insulated wire cores being arranged in triangular supports and be positioned at the ground wire at three drift angles of triangular supports and constitute;Ceramic fibre silk it is provided with between triangular supports and inner sheath;Be sequentially provided with between inner sheath and oversheath thickness be the elastic cord breaker of 2-5mm, thickness be the metal armor layers of 2-4mm and rock wool thermal insulation layer that thickness is 3-6mm.
Heat preservation type cable the most according to claim 1, it is characterised in that: insulating barrier that described insulated wire cores by aluminium conductor, is extruded in outside aluminium conductor successively, insulation screen and the silica gel fireproof casing being arranged on outside insulation screen are constituted.
Heat preservation type cable the most according to claim 1, it is characterised in that: described metal armor layers is aluminum copper-clad armor.
CN201610342516.3A 2016-05-23 2016-05-23 Heat insulation-type cable Pending CN105913945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610342516.3A CN105913945A (en) 2016-05-23 2016-05-23 Heat insulation-type cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610342516.3A CN105913945A (en) 2016-05-23 2016-05-23 Heat insulation-type cable

Publications (1)

Publication Number Publication Date
CN105913945A true CN105913945A (en) 2016-08-31

Family

ID=56749455

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610342516.3A Pending CN105913945A (en) 2016-05-23 2016-05-23 Heat insulation-type cable

Country Status (1)

Country Link
CN (1) CN105913945A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106653202A (en) * 2016-12-27 2017-05-10 上海昌佳电气有限公司 Silicon rubber high-temperature-resistant power cable
CN107682945A (en) * 2017-10-31 2018-02-09 山东华宁电伴热科技有限公司 A kind of high pressure resistant kelvin effect heating cable
CN113096866A (en) * 2021-03-09 2021-07-09 安徽渡江电缆集团有限公司 But withstand voltage insulation power cable

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203366838U (en) * 2013-05-04 2013-12-25 安徽省康利亚实业有限公司 High-temperature-resistant cable structure in low voltage power transmission and distribution line of high-rise building
CN203386522U (en) * 2013-06-26 2014-01-08 开开电缆科技有限公司 Heat insulation fireproof cable
CN204480730U (en) * 2015-04-15 2015-07-15 广东金牌电缆股份有限公司 The standoff high-temperature-resistant, tensile cable of a kind of inner band
CN105321600A (en) * 2015-10-27 2016-02-10 合肥安奎思成套设备有限公司 Tensile and pressure-proof mine self-cooling cable
CN105427944A (en) * 2015-12-23 2016-03-23 无锡市曙光电缆有限公司 Confidential optical fiber composite medium-voltage cable
CN205751646U (en) * 2016-05-23 2016-11-30 无锡市新阳光电缆有限公司 A kind of heat preservation type cable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203366838U (en) * 2013-05-04 2013-12-25 安徽省康利亚实业有限公司 High-temperature-resistant cable structure in low voltage power transmission and distribution line of high-rise building
CN203386522U (en) * 2013-06-26 2014-01-08 开开电缆科技有限公司 Heat insulation fireproof cable
CN204480730U (en) * 2015-04-15 2015-07-15 广东金牌电缆股份有限公司 The standoff high-temperature-resistant, tensile cable of a kind of inner band
CN105321600A (en) * 2015-10-27 2016-02-10 合肥安奎思成套设备有限公司 Tensile and pressure-proof mine self-cooling cable
CN105427944A (en) * 2015-12-23 2016-03-23 无锡市曙光电缆有限公司 Confidential optical fiber composite medium-voltage cable
CN205751646U (en) * 2016-05-23 2016-11-30 无锡市新阳光电缆有限公司 A kind of heat preservation type cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106653202A (en) * 2016-12-27 2017-05-10 上海昌佳电气有限公司 Silicon rubber high-temperature-resistant power cable
CN107682945A (en) * 2017-10-31 2018-02-09 山东华宁电伴热科技有限公司 A kind of high pressure resistant kelvin effect heating cable
CN113096866A (en) * 2021-03-09 2021-07-09 安徽渡江电缆集团有限公司 But withstand voltage insulation power cable

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C10 Entry into substantive examination
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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160831

WD01 Invention patent application deemed withdrawn after publication