CN205318875U - High temperature resistant high voltage withstanding cable - Google Patents

High temperature resistant high voltage withstanding cable Download PDF

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Publication number
CN205318875U
CN205318875U CN201521079846.5U CN201521079846U CN205318875U CN 205318875 U CN205318875 U CN 205318875U CN 201521079846 U CN201521079846 U CN 201521079846U CN 205318875 U CN205318875 U CN 205318875U
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China
Prior art keywords
high temperature
temperature resistant
cable
high voltage
voltage withstanding
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Active
Application number
CN201521079846.5U
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Chinese (zh)
Inventor
周建栋
沈伟华
黎期旺
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GUANGDONG ZHONGDE CABLE CO Ltd
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GUANGDONG ZHONGDE CABLE CO Ltd
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Priority to CN201521079846.5U priority Critical patent/CN205318875U/en
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Abstract

The utility model belongs to the cable field, in particular to high temperature resistant high voltage withstanding cable, including copper conductor and the restrictive coating of parcel outside the copper conductor, this restrictive coating is including the interior sheath of high temperature resistant fluorine plastic insulation layer, mica band layer, low smoke and zero halogen flame retardant polyolefin, woven shield, low smoke and zero halogen flame retardant polyolefin outer jacket, the wear -resisting fluoroplastics oversheath that set gradually from inside to outside. High temperature resistant fluoroplastics can improve the high temperature resistance ability of cable, and the temperature resistant grade reaches 260 DEG C, the parcel has the mica tape can improve the insulating properties and the high voltage withstanding performance of cable, and outmost still parcel has wear -resisting fluoroplastics, increases the abrasion strength of cable, and fluoroplastics have the self -extinguishment, also can prevent the flame diffusion in case the cable has caught fire. To sum up, above -mentioned structure ability multi -angle protection of cables, the high temperature high voltage of production when effectively the reduction comes from the conductor circular telegram or outside adverse circumstances are to the influence of the life production of cable.

Description

High temperature resistant high voltage withstanding cable
Technical field
This utility model belongs to field of cables, particularly to high temperature resistant high voltage withstanding cable.
Background technology
Along with developing rapidly of China's economy, the field such as the subway of China, nuclear power station, optoelectronic communication develops at a speed unheard of before, and the consumption of electricity also increases rapidly therewith. Therewith, all kinds of big power stations also arise at the historic moment, and the performance of power transmission cable also accepts unprecedented test. Electric energy for supertension conducts field; particularly nuclear power field; wire can produce amount of heat and cause cable to heat up in the course of the work; the long-term work under this high temperature and high-tension condition of the cable of traditional material is easily aging and ftractures; after cracking wire by exposed outside; and the adverse circumstances of the Exterior cable also moment damages the protective layer of cable, cause major safety risks to the life of people and property.
Utility model content
Of the present utility model be to provide a kind of can under high temperature, high voltage and adverse circumstances the high temperature resistant high voltage withstanding cable of life-time service.
In order to solve above-mentioned technical problem, this utility model is achieved through the following technical solutions:
High temperature resistant high voltage withstanding cable, including copper conductor and the restrictive coating being wrapped in outside copper conductor, this restrictive coating includes the thermostable fluorine plastic insulating layer, mica wrapping tape layer, low smoke halogen-free flame-retardant polyolefin sheath, woven shield, low smoke halogen-free flame-retardant polyolefin outer jacket and the wear-resisting fluoroplastics oversheath that stack gradually from inside to outside.
Wherein, copper conductor is high purity oxygen free copper bar.
Wherein, thermostable fluorine plastic insulating layer is Meltability polytetrafluorethyletubular insulating barrier.
Wherein, mica wrapping tape layer is composited by gold mica tape and synthetic mica tape.
Wherein, mica wrapping tape layer is vertical is wrapped in thermostable fluorine plastic insulating layer.
Wherein, woven shield is worked out by the copper-clad magnesium-aluminum alloy line that diameter is 0.1mm ~ 0.2mm.
Wherein, the copper volume of copper-clad magnesium-aluminum alloy line accounts for the 20% ~ 40% of copper-clad magnesium-aluminum alloy line volume.
Wherein, wear-resisting fluoroplastics oversheath is grease proofing anticorrosion politef oversheath.
Compared with prior art, the beneficial effects of the utility model are:
High temperature resistant high voltage withstanding cable of the present utility model, including copper conductor and the restrictive coating being wrapped in outside copper conductor, this restrictive coating includes the thermostable fluorine plastic insulating layer, mica wrapping tape layer, low smoke halogen-free flame-retardant polyolefin sheath, woven shield, low smoke halogen-free flame-retardant polyolefin outer jacket and the wear-resisting fluoroplastics oversheath that stack gradually from inside to outside. Thermostable fluorine plastics can prevent from improving the resistance to elevated temperatures of cable, and temperature resistant grade reaches 260 DEG C; It is enclosed with mica tape and can improve the insulating properties of cable and high voltage withstanding performance; Inside and outside sheath can increase the intensity of cable; Woven shield can play the effect of ground protection, and electric current is produced electromagnetic-field-shielded in cable; And outermost layer is also enclosed with wear-resisting fluoroplastics, increase the abrasion resistance of cable, and fluoroplastics there is self-extinguishment, once ignition of cable also can stop flame spread. To sum up, said structure energy multi-angle protection cable, can effectively reduce the impact that the service life of cable is produced by the adverse circumstances of high temperature high voltage or the outside produced when being energized from conductor.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by of the present utility model, is used for explaining this utility model, is not intended that restriction of the present utility model together with embodiment of the present utility model, in the accompanying drawings:
Fig. 1 is the structural representation of high temperature resistant high voltage withstanding cable of the present utility model.
Accompanying drawing labelling includes:
1 oxygen-free copper bar;
2 Meltability polytetrafluorethyletubular insulating barriers;
3 mica wrapping tape layers;
4 low smoke halogen-free flame-retardant polyolefin sheaths;
5 woven shields;
6 low smoke halogen-free flame-retardant polyolefin outer jackets;
7 grease proofing anticorrosion politef oversheaths.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains this utility model, be not used to limit this utility model.
High temperature resistant high voltage withstanding cable of the present utility model, including copper conductor (i.e. oxygen-free copper bar 1) and the restrictive coating that is wrapped in outside copper conductor, this restrictive coating includes the thermostable fluorine plastic insulating layer (i.e. meltability teflon insulation layer 2), mica wrapping tape layer 3, low smoke halogen-free flame-retardant polyolefin sheath 4, woven shield 5, low smoke halogen-free flame-retardant polyolefin outer jacket 6 and the wear-resisting fluoroplastics oversheath (i.e. grease proofing anticorrosion politef oversheath 7) that stack gradually from inside to outside.
Specifically, copper conductor is high purity oxygen free copper bar 1, and its resistivity is little, can reduce caloric value.
Specifically, thermostable fluorine plastic insulating layer is Meltability polytetrafluorethyletubular insulating barrier 2, and it has good resistance to stress and crack resistence.
Specifically, mica wrapping tape layer 3 is composited by gold mica tape and synthetic mica tape. Gold mica tape has good fire resistance, resistance to acids and bases and anti-corona, radiation-resistant characteristic, and has fine flexibility and hot strength, has held the cable of gold mica tape, can ensure that 90min does not puncture when 840 DEG C of voltage 1000V of temperature; And synthetic mica tape possesses the advantage of gold mica tape simultaneously, its temperature classification is high, can reach the fire-resistant level of A level (950 1 1000 DEG C); These two kinds of mica tapes are combined into double-deck mica tape, can reach high temperature resistant and high voltage withstanding requirement. Mica wrapping tape layer 3 is vertical to be wrapped in outside Meltability polytetrafluorethyletubular insulating barrier 2, adopts the mode of vertical bag can reduce the overlap of mica wrapping tape, saves material, also make cable entirety thickness consistent.
Specifically, the copper-clad magnesium-aluminum alloy line that woven shield 5 adopts diameter to be 0.1mm ~ 0.2mm is worked out, and the copper volume of this kind of copper-clad magnesium-aluminum alloy line accounts for the 20% ~ 40% of copper-clad magnesium-aluminum alloy line volume. In the present embodiment, the diameter of copper-clad magnesium-aluminum alloy line is 0.15mm, copper volume accounts for the 30% of copper-clad magnesium-aluminum alloy line volume, compared to the common copper-clad magnesium-aluminum alloy line that copper volume accounting is 15%, this kind of alloy wire adds the volume ratio of copper, makes alloy wire have relatively low resistivity, also improves the tensile strength of alloy wire simultaneously, the woven shield shield effectiveness using this kind of alloy wire establishment is good, and improves the tensile strength of cable.
Specifically, wear-resisting fluoroplastics oversheath is grease proofing anticorrosion politef oversheath 7, it has the chemical stability of height, almost resistant to the corrosion of all of common strong acid, highly basic or hydrogen-oxygen voltinism chemicals, also there is high temperature resistant, wear-resisting feature simultaneously, be a kind of desirable grease proofing corrosion-resistant high-temperature material.
High temperature resistant high voltage withstanding cable of the present utility model, its performance indications are as follows after tested: insulation tensile strength is 25.5MPa; Insulation elongation at break is 226%; Testing 168 hours under the environment of 180 DEG C, after insulation ag(e)ing, tensile strength is 23.9MPa, and after insulation ag(e)ing, percentage elongation is 215%; When 136 DEG C, sheath caloric deformation rate is 35%; The high temperature impact carried out under 180 DEG C of environment 1 hour can keep cable not ftracture; And fire resistance is by IEC60332-1 standard.
To sum up, said structure energy multi-angle protection cable, can effectively reduce the impact that high temperature, high voltage or adverse circumstances produce the service life on cable.
Last it is noted that these are only preferred embodiment of the present utility model; it is not limited to this utility model; although this utility model being described in detail with reference to embodiment; for a person skilled in the art; technical scheme described in foregoing embodiments still can be modified by it; or wherein portion of techniques feature is carried out equivalent replacement; but it is all within spirit of the present utility model and principle; any amendment of being made, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.

Claims (8)

1. high temperature resistant high voltage withstanding cable, including copper conductor and the restrictive coating being wrapped in outside described copper conductor, it is characterised in that: described restrictive coating includes the thermostable fluorine plastic insulating layer, mica wrapping tape layer, low smoke halogen-free flame-retardant polyolefin sheath, woven shield, low smoke halogen-free flame-retardant polyolefin outer jacket and the wear-resisting fluoroplastics oversheath that stack gradually from inside to outside.
2. high temperature resistant high voltage withstanding cable according to claim 1, it is characterised in that: described copper conductor is high purity oxygen free copper bar.
3. high temperature resistant high voltage withstanding cable according to claim 1, it is characterised in that: described thermostable fluorine plastic insulating layer is Meltability polytetrafluorethyletubular insulating barrier.
4. high temperature resistant high voltage withstanding cable according to claim 1, it is characterised in that: described mica wrapping tape layer is composited by gold mica tape and synthetic mica tape.
5. high temperature resistant high voltage withstanding cable according to claim 1, it is characterised in that: described mica wrapping tape layer is vertical is wrapped in described thermostable fluorine plastic insulating layer.
6. high temperature resistant high voltage withstanding cable according to claim 1, it is characterised in that: described woven shield is worked out by the copper-clad magnesium-aluminum alloy line that diameter is 0.1mm ~ 0.2mm.
7. high temperature resistant high voltage withstanding cable according to claim 6, it is characterised in that: the copper volume of described copper-clad magnesium-aluminum alloy line accounts for the 20% ~ 40% of described copper-clad magnesium-aluminum alloy line volume.
8. high temperature resistant high voltage withstanding cable according to claim 1, it is characterised in that: described wear-resisting fluoroplastics oversheath is grease proofing anticorrosion politef oversheath.
CN201521079846.5U 2015-12-22 2015-12-22 High temperature resistant high voltage withstanding cable Active CN205318875U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521079846.5U CN205318875U (en) 2015-12-22 2015-12-22 High temperature resistant high voltage withstanding cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521079846.5U CN205318875U (en) 2015-12-22 2015-12-22 High temperature resistant high voltage withstanding cable

Publications (1)

Publication Number Publication Date
CN205318875U true CN205318875U (en) 2016-06-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107863188A (en) * 2017-11-24 2018-03-30 上海南大集团有限公司 A kind of 27.5kV single phase acs water proof fire retardant environmental protection electric railway power cable
CN108899121A (en) * 2018-08-14 2018-11-27 安徽渡江电缆集团有限公司 A kind of environment resistant aging polyolefin photovoltaic cable
CN109003728A (en) * 2018-08-02 2018-12-14 江苏金由新材料有限公司 A kind of cable cover(ing) with high-wearing feature
CN112562907A (en) * 2020-11-25 2021-03-26 安徽华能电缆股份有限公司 Fluoropolymer insulation wire harness cable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107863188A (en) * 2017-11-24 2018-03-30 上海南大集团有限公司 A kind of 27.5kV single phase acs water proof fire retardant environmental protection electric railway power cable
CN109003728A (en) * 2018-08-02 2018-12-14 江苏金由新材料有限公司 A kind of cable cover(ing) with high-wearing feature
CN108899121A (en) * 2018-08-14 2018-11-27 安徽渡江电缆集团有限公司 A kind of environment resistant aging polyolefin photovoltaic cable
CN112562907A (en) * 2020-11-25 2021-03-26 安徽华能电缆股份有限公司 Fluoropolymer insulation wire harness cable

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