CN105469895A - Large-span low overhead type DC photovoltaic cable - Google Patents
Large-span low overhead type DC photovoltaic cable Download PDFInfo
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- CN105469895A CN105469895A CN201410450384.7A CN201410450384A CN105469895A CN 105469895 A CN105469895 A CN 105469895A CN 201410450384 A CN201410450384 A CN 201410450384A CN 105469895 A CN105469895 A CN 105469895A
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- overhead type
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Abstract
The invention relates to a large-span low overhead type DC photovoltaic cable, which comprises an outer sheath and a cable core. The large-span low overhead type DC photovoltaic cable is characterized by further comprising a reinforcement core which winds around the cable core to distribute in an equilateral triangle. The outer sheath wraps the cable core and the reinforcement core. A space between the cable core and the reinforcement core is filled with buffer filler. The reinforcement core comprises a cable rope which is formed by engaging steel wires in strand and an insulating layer which wraps the cable rope. The cable core comprises a metal shielding layer, a waterproof layer, an armored layer and wire cores which are located in two semicircular cavity bodies of the metal shielding layer. The metal shielding layer is sequentially sleeved with the waterproof layer and the armored layer. By adopting the reinforcement core structure in the shape of an equilateral triangle, the distance between brackets can be up to 20-30 meters, thus the used brackets are greatly reduced, the cost is decreased, and a large-span low overhead scheme is realized.
Description
Technical field
The present invention relates to a kind of photovoltaic cable mounting structure, is a kind of large span low latitude overhead type direct current light luff cable specifically.
background technology
Photovoltaic solar generating is mainly distributed in NORTHWEST CHINA Desert Area, directly light energy conversion is become electric energy by each solar panel of array arrangement by photoelectric effect or Photochemical effects, when solar irradiation is mapped on semiconductor, some photons are with the valence electron collision of composition semiconductor, so produce electronics-hole pair, luminous energy is just to produce the right formal transformation in electronics-hole for electric energy.The direct current collected is transferred in the header box of photovoltaic plant by low pressure photovoltaic cable by solar panel, then carry out inversion, high-tension electricity that boost conversion becomes utility grid general.Low-voltage cable between solar panel to header box can adopt the built on stilts installation in low latitude to prevent the invasion and attack of rainwater or animal, photovoltaic DC cable is generally copper core flame-proof polyvinyl chloride insulation PVC sheath flexible cable, cannot support alone, cable is coiled into splayed configuration and ties up on crossbearer by general use rope, aerial construction is simple and crude, because cable length is extremely long, the a lot of rack bearing of needs of cable, between general 5 ~ 10 meters of gap length between support calcaneus branches frame, support at substantial cost.
Summary of the invention
For above-mentioned situation, the invention provides a kind of large span low latitude overhead type direct current light luff cable, setting up equilateral triangle in the cable and be distributed in strengthening core around cable core, when setting up cable, only the strengthening core being in cable core periphery need be fixed, improve cable core intensity, use equilateral triangle strengthening core structure of the present invention, the spacing between support and support can reach 20 ~ 30 meters, thus significantly reduces support use, reduce costs, scheme is maked somebody a mere figurehead in the low latitude realizing large span.
To achieve these goals, technical scheme of the present invention is as follows:
Large span low latitude overhead type direct current light luff cable, comprise oversheath and cable core, it is characterized in that, also comprise the strengthening core becoming equilateral triangle to distribute around cable core, oversheath parcel cable core and strengthening core, buffering filler is also filled with between cable core and strengthening core, described strengthening core comprises the hawser being bited into strand by steel wire and the insulating barrier wrapped up outside it, described cable core comprises metal screen layer, watertight composition, armour and is arranged in the core of metal screen layer two semicircle cavitys, and the outside of metal screen layer is set with watertight composition and armour successively.
Described insulating layer material can be polyvinyl chloride, polyethylene, polypropylene, fluoroplastics, chlorinated polyether, polyamide.
The material of described metal screen layer is semiconductive material: one or several in double plastic-coated aluminium strip, copper strips, copper-clad stainless steel band, high strength modification copper strips or naked firm bimetallic strip.
Described watertight composition for adopt plastic-aluminum combined plate structure, take polypropylene material as core, with the application aluminium sheet after chemical treatment for skin-material, the composite plate structure that both are composited.
Described armour to be thickness that one deck indulges bag be steel band or the application steel band of 0.15 ~ 0.2 millimeter, the steel band of armour or application steel band need individual layer or two-sided cast preservation blends in vertical packet procedures.
Described oversheath is duplex sheath, and duplex sheath is polyethylene-polyvinyl chloride duplex sheath or polypropylene-black polyethylene duplex sheath.The former has better lightning protection, antiseptic property, and the latter has mechanical strength and the outstanding moisture effects such as better resistance to compression, tension.
Described buffering filler adopts polyurathamc filler, and cable core and strengthening core intercept and come by polyurethane filler, and have certain cementation, ensures that strengthening core and cable core keep the structure of equilateral triangle to misplace in use procedure.
Advantage of the present invention: set up equilateral triangle in the cable and be distributed in strengthening core around cable core, when setting up cable, only the strengthening core being in cable core periphery need be fixed, improve cable core intensity, use equilateral triangle strengthening core structure of the present invention, the spacing between support and support can reach 20 ~ 30 meters, thus significantly reduces support use, reduce costs, scheme is maked somebody a mere figurehead in the low latitude realizing large span.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In the drawings: 1-oversheath, 2-insulating barrier, 3-cable core, 4-metal screen layer, 5-watertight composition, 6-armour, 7-cushions filler, 8-hawser.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
See Fig. 1, large span low latitude overhead type direct current light luff cable, comprise oversheath and cable core, it is characterized in that, also comprise the strengthening core becoming equilateral triangle to distribute around cable core, oversheath parcel cable core and strengthening core, buffering filler is also filled with between cable core and strengthening core, described strengthening core comprises the hawser being bited into strand by steel wire and the insulating barrier wrapped up outside it, described cable core comprises metal screen layer, watertight composition, armour and is arranged in the core of metal screen layer two semicircle cavitys, and the outside of metal screen layer is set with watertight composition and armour successively.
Described insulating layer material can be polyvinyl chloride, polyethylene, polypropylene, fluoroplastics, chlorinated polyether, polyamide.
The material of described metal screen layer is semiconductive material: one or several in double plastic-coated aluminium strip, copper strips, copper-clad stainless steel band, high strength modification copper strips or naked firm bimetallic strip.
Described watertight composition for adopt plastic-aluminum combined plate structure, take polypropylene material as core, with the application aluminium sheet after chemical treatment for skin-material, the composite plate structure that both are composited.
Described armour to be thickness that one deck indulges bag be steel band or the application steel band of 0.15 ~ 0.2 millimeter, the steel band of armour or application steel band need individual layer or two-sided cast preservation blends in vertical packet procedures.
Described oversheath is duplex sheath, and duplex sheath is polyethylene-polyvinyl chloride duplex sheath or polypropylene-black polyethylene duplex sheath.The former has better lightning protection, antiseptic property, and the latter has mechanical strength and the outstanding moisture effects such as better resistance to compression, tension.
Described buffering filler adopts polyurathamc filler, and cable core and strengthening core intercept and come by polyurethane filler, and have certain cementation, ensures that strengthening core and cable core keep the structure of equilateral triangle to misplace in use procedure.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection range of application claims is defined by appending claims and equivalent thereof.
Claims (5)
1. large span low latitude overhead type direct current light luff cable, comprise oversheath and cable core, it is characterized in that, also comprise the strengthening core becoming equilateral triangle to distribute around cable core, oversheath parcel cable core and strengthening core, buffering filler is also filled with between cable core and strengthening core, described strengthening core comprises the hawser being bited into strand by steel wire and the insulating barrier wrapped up outside it, described cable core comprises metal screen layer, watertight composition, armour and is arranged in the core of metal screen layer two semicircle cavitys, and the outside of metal screen layer is set with watertight composition and armour successively.
2. large span low latitude according to claim 1 overhead type direct current light luff cable, it is characterized in that, the material of described metal screen layer is semiconductive material: one or several in double plastic-coated aluminium strip, copper strips, copper-clad stainless steel band, high strength modification copper strips or naked firm bimetallic strip.
3. large span low latitude according to claim 1 overhead type direct current light luff cable, it is characterized in that, described watertight composition adopts plastic-aluminum combined plate structure: take polypropylene material as core, with the application aluminium sheet after chemical treatment for skin-material, the composite plate structure that both are composited.
4. large span low latitude according to claim 1 overhead type direct current light luff cable, it is characterized in that, described oversheath is duplex sheath, and duplex sheath is polyethylene-polyvinyl chloride duplex sheath or polypropylene-black polyethylene duplex sheath.
5. large span low latitude according to claim 1 overhead type direct current light luff cable, is characterized in that, described buffering filler adopts polyurathamc filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450384.7A CN105469895A (en) | 2014-09-05 | 2014-09-05 | Large-span low overhead type DC photovoltaic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450384.7A CN105469895A (en) | 2014-09-05 | 2014-09-05 | Large-span low overhead type DC photovoltaic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105469895A true CN105469895A (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410450384.7A Pending CN105469895A (en) | 2014-09-05 | 2014-09-05 | Large-span low overhead type DC photovoltaic cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN105469895A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111708122A (en) * | 2020-06-12 | 2020-09-25 | 深圳市欧耐特通讯有限公司 | Novel multi-core optical fiber connector |
| CN117130117A (en) * | 2023-10-25 | 2023-11-28 | 南京华信藤仓光通信有限公司 | Butterfly-shaped compression-resistant stretch-resistant communication optical cable |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0660149A1 (en) * | 1993-12-17 | 1995-06-28 | BICC Public Limited Company | Semiconductive linear element |
| CN201725616U (en) * | 2010-05-18 | 2011-01-26 | 无锡电缆厂有限公司 | Self-supporting overhead insulated cable |
| CN202473309U (en) * | 2012-01-11 | 2012-10-03 | 安徽五洲特种电缆集团有限公司 | Environment stress resistant mechanical load resistant environment-friendly type photovoltaic DC cable |
| CN203085208U (en) * | 2013-03-01 | 2013-07-24 | 扬州华城电缆有限公司 | Comprehensive enhanced solar photovoltaic computer cable |
| CN203406073U (en) * | 2013-08-12 | 2014-01-22 | 江苏俊知技术有限公司 | Remote aerial cable for communication base station |
| CN203689933U (en) * | 2013-11-29 | 2014-07-02 | 四川鑫电电缆有限公司 | Long-distance overhead cable used for communication base station |
| CN203689988U (en) * | 2013-10-11 | 2014-07-02 | 广东德源亨电缆实业有限公司 | Special-shaped armoured cable |
| CN203706713U (en) * | 2014-04-30 | 2014-07-09 | 上海飞航电线电缆有限公司 | Aerial cable |
| CN104008794A (en) * | 2014-06-12 | 2014-08-27 | 江苏大地电缆有限公司 | Composite multi-core ultra-high-strength shielding waterproof and flame-resistant cable |
| CN204143948U (en) * | 2014-09-05 | 2015-02-04 | 上海金友金弘电线电缆股份有限公司 | Large span low latitude overhead type direct current light luff cable |
-
2014
- 2014-09-05 CN CN201410450384.7A patent/CN105469895A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0660149A1 (en) * | 1993-12-17 | 1995-06-28 | BICC Public Limited Company | Semiconductive linear element |
| CN201725616U (en) * | 2010-05-18 | 2011-01-26 | 无锡电缆厂有限公司 | Self-supporting overhead insulated cable |
| CN202473309U (en) * | 2012-01-11 | 2012-10-03 | 安徽五洲特种电缆集团有限公司 | Environment stress resistant mechanical load resistant environment-friendly type photovoltaic DC cable |
| CN203085208U (en) * | 2013-03-01 | 2013-07-24 | 扬州华城电缆有限公司 | Comprehensive enhanced solar photovoltaic computer cable |
| CN203406073U (en) * | 2013-08-12 | 2014-01-22 | 江苏俊知技术有限公司 | Remote aerial cable for communication base station |
| CN203689988U (en) * | 2013-10-11 | 2014-07-02 | 广东德源亨电缆实业有限公司 | Special-shaped armoured cable |
| CN203689933U (en) * | 2013-11-29 | 2014-07-02 | 四川鑫电电缆有限公司 | Long-distance overhead cable used for communication base station |
| CN203706713U (en) * | 2014-04-30 | 2014-07-09 | 上海飞航电线电缆有限公司 | Aerial cable |
| CN104008794A (en) * | 2014-06-12 | 2014-08-27 | 江苏大地电缆有限公司 | Composite multi-core ultra-high-strength shielding waterproof and flame-resistant cable |
| CN204143948U (en) * | 2014-09-05 | 2015-02-04 | 上海金友金弘电线电缆股份有限公司 | Large span low latitude overhead type direct current light luff cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111708122A (en) * | 2020-06-12 | 2020-09-25 | 深圳市欧耐特通讯有限公司 | Novel multi-core optical fiber connector |
| CN117130117A (en) * | 2023-10-25 | 2023-11-28 | 南京华信藤仓光通信有限公司 | Butterfly-shaped compression-resistant stretch-resistant communication optical cable |
| CN117130117B (en) * | 2023-10-25 | 2024-01-19 | 南京华信藤仓光通信有限公司 | Butterfly-shaped compression-resistant stretch-resistant communication optical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 201800 Shanghai City, Anting, outside the town of Pine Road, No. second, building 1148, No. Applicant after: Shanghai Jinyou Jin Hong intelligent electrical Limited by Share Ltd Address before: 201800 Shanghai City, Anting, outside the town of Pine Road, No. second, building 1148, No. Applicant before: SHANGHAI JINYOU JINHONG WIRE & CABLE CO., LTD. |
|
| CB02 | Change of applicant information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160406 |
|
| WD01 | Invention patent application deemed withdrawn after publication |