CN109036698A - A kind of high current photovoltaic plant direct current confluence cable and its mounting and installation method - Google Patents
A kind of high current photovoltaic plant direct current confluence cable and its mounting and installation method Download PDFInfo
- Publication number
- CN109036698A CN109036698A CN201810744395.4A CN201810744395A CN109036698A CN 109036698 A CN109036698 A CN 109036698A CN 201810744395 A CN201810744395 A CN 201810744395A CN 109036698 A CN109036698 A CN 109036698A
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- cable
- wall
- socketed
- layer
- direct current
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- 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
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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
- H01B7/02—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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- 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
- H01B7/22—Metal wires or tapes, e.g. made of steel
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
-
- 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
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
Landscapes
- Photovoltaic Devices (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
It is disclosed by the invention to belong to photovoltaic cable technical field, specially a kind of high current photovoltaic plant direct current confluence cable and its mounting and installation method, including leader cable, the bottom of the leader cable is connected with branch cable by connecting terminal, the outer wall of the conductor is socketed with shield layer, the outer wall of the shield layer is socketed with insulating layer, the outer wall of the insulating layer is socketed with heat-conducting layer, the outer wall of the heat-conducting layer is socketed with flame retardant coating, the outer wall of the flame retardant coating is socketed with steel-tape armouring layer, the outer wall of the steel-tape armouring layer is uniformly arranged full skirt portion, full skirt portion had once been set in the outer wall of cable, improve cable climbs electric energy power, improve insulation performance, and fire prevention heat dissipation performance is excellent, also there is acid and alkali-resistance, resistance to grease, the performance of tear-proof and environmental protection, the mounting and installation method of the invention is simple, installation speed is fast, convenient for constructing on the spot , falling off for junction can be prevented, there is good sealing performance, meets and uses needs.
Description
Technical field
The present invention relates to photovoltaic cable technical field, specially a kind of high current photovoltaic plant with direct current converge cable and its
Mounting and installation method.
Background technique
Photovoltaic plant, refer to it is a kind of using solar energy, using electronic components such as special material crystal silicon plate, inverters
The power generation system of composition, the photovoltaic generating system for being connected with power grid and transmitting electric power to power grid.Photovoltaic plant is to belong to state at present
Family encourages the maximum green electric power supply of dynamics to develop energy project.During photovoltaic power station power generation, the electric current generated is very
Greatly, and often muti-piece photovoltaic module series and parallel is needed, links adaptable direct current, is sent to by direct current bus bar (cable) inverse
Become device to be converted into exchanging, then boosts, is grid-connected.The performance of existing cable can not meet use demand, especially insulating properties,
Fire line and electrical shielding performance, so that the service life of cable is low, and also will cause the generation of contingency, for this purpose, I
Propose a kind of high current photovoltaic plant direct current confluence cable and its mounting and installation method.
Summary of the invention
Converge cable and its mounting and installation method the purpose of the present invention is to provide a kind of high current photovoltaic plant direct current,
It can not meet use demand to solve the performance of existing cable mentioned above in the background art, especially in insulating properties, anti-
Fire and electrical shielding performance, so that the service life of cable is low, and the problem of also will cause the generation of contingency.
To achieve the above object, the electricity the invention provides the following technical scheme: a kind of high current photovoltaic plant direct current converges
The bottom of cable, including leader cable, the leader cable is connected with branch cable, the company of the leader cable and branch cable by connecting terminal
The place of connecing is socketed with terminal box, and the leader cable includes conductor, and the outer wall of the conductor is socketed with shield layer, the shield layer
Outer wall be socketed with insulating layer, the outer wall of the insulating layer is socketed with heat-conducting layer, and the outer wall of the heat-conducting layer is socketed with flame retardant coating,
The outer wall of the flame retardant coating is socketed with steel-tape armouring layer, and the outer wall of the steel-tape armouring layer is uniformly arranged full skirt portion, the main electricity
Cable is identical as the structure of branch cable, and the left and right sides and bottom of the terminal box are provided with wiring hole, the inner cavity of the wiring hole
It is plugged with sealing ring, the left and right sides and bottom of the inner cavity rear surface of the terminal box are mounted on cable fixing buckle.
Preferably, the cable fixing buckle includes the opposite upper arc panel and arc lower plate of opening, and upper arc panel is under
The left end of arc panel is hinged, and the upper arc panel and arc lower plate are mutually uniformly equipped with elastic component, the elastic component depending on face
The other end clamping plate is installed, the right side of the upper arc panel and arc lower plate is integrally formed with fixed plate, the fixed plate
On be provided with fixation hole.
Preferably, the front surface of the terminal box is equipped with box cover, and box cover is located at the front side of wiring hole.
Preferably, the shield layer is extruded in the outer wall of conductor using electrical shielding material squash type.
Preferably, the heat-conducting layer is made of silicon rubber, Strong oxdiative aluminium and graphene, and silicon rubber, Strong oxdiative aluminium and
Component between graphene is 15:3:2.
Preferably, refractory raw material is extruded in the outer wall of heat-conducting layer, the refractory raw material using extruding machine by the flame retardant coating
For halogen-free anti-flaming polyolefin.
Preferably, the steel-tape armouring layer is using bi-metallic gap formula around the outer wall of flame retardant coating.
A kind of high current photovoltaic plant direct current converges the mounting and installation method of cable, the high current photovoltaic plant direct current
The mounting and installation method of confluence cable includes the following steps:
S1: leader cable being passed through in the wiring hole at left and right sides of terminal box, is then sealed wiring hole using sealing ring, will
Leader cable is located at one section of central location among terminal box and carries out wire stripping, so that the conductor of leader cable exposes, then will branch
Cable one end passes through the wiring hole of terminal box bottom, and by the end of branch cable using the exposed of connecting terminal connection leader cable
Portion；
S2: leader cable branch cable is fixed using cable fixing buckle, when fixed, leader cable or branch cable is passed through upper
Between arc panel and arc lower plate, arc panel and arc lower plate in compression are realized by elastic component and clamping plate to upper arc panel
With the clamping of arc lower plate, then makes two fixation hole alignment, fixed using bolt, spring washer, plain cushion and nut；
S3: processing is sealed to the junction of leader cable and branch cable, finally closes box cover.
Compared with prior art, the beneficial effects of the present invention are: a kind of high current photovoltaic plant that the invention proposes is used directly
Stream confluence cable and its mounting and installation method, good insulation preformance had once set full skirt portion in the outer wall of cable, and had improved climbing for cable
Electric energy power improves insulation performance, and heat dissipation performance of preventing fires is excellent, also has acid and alkali-resistance, resistance to grease, tear-proof and the property of environmental protection
Can, the mounting and installation method of the invention is simple, and installation speed is fast, convenient for constructing on the spot, can prevent falling off for junction, have
Good sealing performance meets and uses needs.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is leader cable structural schematic diagram of the present invention；
Fig. 3 is junction box structure schematic diagram of the present invention；
Fig. 4 is cable fixing buckle structural schematic diagram of the present invention.
In figure: 1 leader cable, 11 conductors, 12 shield layers, 13 insulating layers, 14 heat-conducting layers, 15 flame retardant coatings, 16 steel-tape armourings
Layer, 17 protective jackets, 18 full skirt portions, 2 branch cables, 3 terminal boxes, 31 wiring holes, 32 sealing rings, 33 cable fixing buckles, arc on 331
Plate, 332 arc lower plates, 333 elastic components, 334 clamping plates, 335 fixed plates, 336 fixation holes, 4 connecting terminals.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-4 is please referred to, the present invention provides a kind of high current photovoltaic plant direct current confluence cable, including leader cable 1, institute
It states the bottom of leader cable 1 and branch cable 2 is connected with by connecting terminal 4, the junction of the leader cable 1 and branch cable 2 is socketed with
Terminal box 3, the leader cable 1 include conductor 11, and the outer wall of the conductor 11 is socketed with shield layer 12, the shield layer 12
Outer wall be socketed with insulating layer 13, the outer wall of the insulating layer 13 is socketed with heat-conducting layer 14, the outer wall socket of the heat-conducting layer 14
There is flame retardant coating 15, the outer wall of the flame retardant coating 15 is socketed with steel-tape armouring layer 16, and the outer wall of the steel-tape armouring layer 16 is uniformly set
Full skirt portion 18 is set, the leader cable 1 is identical as the structure of branch cable 2, and the left and right sides and bottom of the terminal box 3 are provided with and connect
String holes 31, the inner cavity of the wiring hole 31 are plugged with sealing ring 32, the left and right sides and bottom of the inner cavity rear surface of the terminal box 3
Portion is mounted on cable fixing buckle 33.
Wherein, the cable fixing buckle 33 includes the opposite upper arc panel 331 and arc lower plate 332 of being open, and upper arc
The left end of plate 331 and arc lower plate 332 is hinged, and the upper arc panel 331 and arc lower plate 332 are mutually uniformly equipped with depending on face
Elastic component 333, the other end of the elastic component 333 are equipped with clamping plate 334, the upper arc panel 331 and arc lower plate 332
Right side is provided with fixation hole 336, the front surface installation of the terminal box 3 integrally formed with fixed plate 335 in the fixed plate 335
There is box cover, and box cover is located at the front side of wiring hole 31, the shield layer 12 is extruded in conductor 11 using electrical shielding material squash type
Outer wall, the heat-conducting layer 14 is made of silicon rubber, Strong oxdiative aluminium and graphene, and silicon rubber, Strong oxdiative aluminium and graphene
Between component be 15:3:2, refractory raw material is extruded in the outer wall of heat-conducting layer 14 using extruding machine by the flame retardant coating 15, described
Refractory raw material is halogen-free anti-flaming polyolefin, and the steel-tape armouring layer 16 is using bi-metallic gap formula around the outer of flame retardant coating 15
Wall.
The present invention also provides a kind of high current photovoltaic plant mounting and installation method of direct current confluence cable, the high current light
The mounting and installation method of overhead utility direct current confluence cable includes the following steps:
S1: in the wiring hole 31 that leader cable 1 is passed through to the left and right sides of terminal box 3, then using sealing ring 32 by wiring hole 31 into
Leader cable 1 is located at one section of central location among terminal box 3 and carries out wire stripping, so that the conductor 11 of leader cable 1 is naked by row sealing
Expose, then 2 one end of branch cable is passed through to the wiring hole 31 of 3 bottom of terminal box, and the end of branch cable 2 is used into connecting terminal
The exposed portion of 4 connection leader cables 1；
S2: 1 branch cable 2 of leader cable is fixed using cable fixing buckle 3, when fixed, by leader cable 1 or branch cable 2
Across upper arc panel 331 and arc lower plate 332, arc panel 331 and arc lower plate 332 in compression pass through 333 He of elastic component
Clamping plate 334 realizes the clamping to upper arc panel 331 and arc lower plate 332, is aligned two fixation holes 336, uses
Bolt, spring washer, plain cushion and nut are fixed；
S3: processing is sealed to the junction of leader cable 1 and branch cable 2, finally closes box cover.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
- The cable 1. a kind of high current photovoltaic plant direct current converges, including leader cable (1), the bottom of the leader cable (1) pass through Connecting terminal (4) is connected with branch cable (2), and the junction of the leader cable (1) and branch cable (2) is socketed with terminal box (3), Be characterized in that: the leader cable (1) includes conductor (11), and the outer wall of the conductor (11) is socketed with shield layer (12), described The outer wall of shield layer (12) is socketed with insulating layer (13), and the outer wall of the insulating layer (13) is socketed with heat-conducting layer (14), described The outer wall of heat-conducting layer (14) is socketed with flame retardant coating (15), and the outer wall of the flame retardant coating (15) is socketed with steel-tape armouring layer (16), institute The outer wall for stating steel-tape armouring layer (16) is uniformly arranged full skirt portion (18), and the leader cable (1) is identical as the structure of branch cable (2), The left and right sides and bottom of the terminal box (3) are provided with wiring hole (31), and the inner cavity of the wiring hole (31) is plugged with sealing It encloses (32), the left and right sides and bottom of the inner cavity rear surface of the terminal box (3) are mounted on cable fixing buckle (33).
- The cable 2. a kind of high current photovoltaic plant according to claim 1 direct current converges, it is characterised in that: the cable Fixing buckle (33) includes the opposite upper arc panel (331) and arc lower plate (332) of opening, and upper arc panel (331) and arc lower The left end of plate (332) is hinged, and the upper arc panel (331) and arc lower plate (332) are mutually uniformly equipped with elastic component depending on face (333), the other end of the elastic component (333) is equipped with clamping plate (334), the upper arc panel (331) and arc lower plate (332) right side is provided with fixation hole (336) on the fixed plate (335) integrally formed with fixed plate (335).
- The cable 3. a kind of high current photovoltaic plant according to claim 1 direct current converges, it is characterised in that: the wiring The front surface of box (3) is equipped with box cover, and box cover is located at the front side of wiring hole (31).
- The cable 4. a kind of high current photovoltaic plant according to claim 1 direct current converges, it is characterised in that: the electric screen Cover the outer wall that layer (12) are extruded in conductor (11) using electrical shielding material squash type.
- The cable 5. a kind of high current photovoltaic plant according to claim 1 direct current converges, it is characterised in that: described thermally conductive Layer (14) is made of silicon rubber, Strong oxdiative aluminium and graphene, and the component between silicon rubber, Strong oxdiative aluminium and graphene is 15:3:2。
- The cable 6. a kind of high current photovoltaic plant according to claim 1 direct current converges, it is characterised in that: the fire resisting Refractory raw material is extruded in the outer wall of heat-conducting layer (14) using extruding machine by layer (15), and the refractory raw material is halogen-free flameproof polyene Hydrocarbon.
- The cable 7. a kind of high current photovoltaic plant according to claim 1 direct current converges, it is characterised in that: the steel band Armor (16) is using bi-metallic gap formula around the outer wall of flame retardant coating (15).
- The mounting and installation method of cable 8. a kind of high current photovoltaic plant direct current converges, it is characterised in that: the high current photovoltaic The mounting and installation method of power station direct current confluence cable includes the following steps:S1: leader cable (1) being passed through in the wiring hole (31) at left and right sides of terminal box (3), then will be connect using sealing ring (32) String holes (31) is sealed, and leader cable (1) is located at one section of intermediate central location of terminal box (3) and carries out wire stripping, makes winner The conductor (11) of cable (1) exposes, then branch cable (2) one end is passed through to the wiring hole (31) of terminal box (3) bottom, and will The end of branch cable (2) connects the exposed portion of leader cable (1) using connecting terminal (4)；S2: leader cable (1) a branch cable (2) is fixed using cable fixing buckle (3), when fixed, by leader cable (1) or Branch cable (2) is across upper arc panel (331) and arc lower plate (332), arc panel (331) and arc lower plate in compression (332), the clamping to upper arc panel (331) and arc lower plate (332) is realized by elastic component (333) and clamping plate (334), so After make the alignment of two fixation holes (336), fixed using bolt, spring washer, plain cushion and nut；S3: processing is sealed to the junction of leader cable (1) and branch cable (2), finally closes box cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744395.4A CN109036698A (en) | 2018-07-09 | 2018-07-09 | A kind of high current photovoltaic plant direct current confluence cable and its mounting and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744395.4A CN109036698A (en) | 2018-07-09 | 2018-07-09 | A kind of high current photovoltaic plant direct current confluence cable and its mounting and installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109036698A true CN109036698A (en) | 2018-12-18 |
Family
ID=64640750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810744395.4A Pending CN109036698A (en) | 2018-07-09 | 2018-07-09 | A kind of high current photovoltaic plant direct current confluence cable and its mounting and installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109036698A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115954152A (en) * | 2023-01-30 | 2023-04-11 | 河北方科电缆有限公司 | Fireproof cable |
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| CN107086516A (en) * | 2017-04-28 | 2017-08-22 | 远东电缆有限公司 | A kind of high current photovoltaic plant direct current confluxes cable and its mounting and installation method |
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| CN103627179A (en) * | 2013-11-29 | 2014-03-12 | 中国科学院金属研究所 | Graphene-containing silicone rubber composite material with high thermal conductivity and preparation method thereof |
| CN105552820A (en) * | 2014-11-04 | 2016-05-04 | 中国长江电力股份有限公司 | Integrated prefabricated type cable accessory |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115954152A (en) * | 2023-01-30 | 2023-04-11 | 河北方科电缆有限公司 | Fireproof cable |
| CN115954152B (en) * | 2023-01-30 | 2023-05-09 | 河北方科电缆有限公司 | Fireproof cable |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |
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| RJ01 | Rejection of invention patent application after publication |