CN112635116A - Irradiation crosslinking polyolefin insulation photovoltaic cable - Google Patents
Irradiation crosslinking polyolefin insulation photovoltaic cable Download PDFInfo
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- CN112635116A CN112635116A CN202011305880.5A CN202011305880A CN112635116A CN 112635116 A CN112635116 A CN 112635116A CN 202011305880 A CN202011305880 A CN 202011305880A CN 112635116 A CN112635116 A CN 112635116A
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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
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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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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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
- H01B7/17—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
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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
- H01B7/17—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
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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
- H01B7/17—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
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
- H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses an irradiation crosslinking polyolefin insulation photovoltaic cable which comprises a cable main body, wherein a cable shell is arranged on the outer surface of the cable main body, a polyolefin sheath is arranged on the inner surface of the cable shell, a waterproof layer is fixedly connected to the inner surface of the polyolefin sheath, and a conductor cavity is arranged on the inner surface of the waterproof layer. According to the invention, the tin-plated copper conductor and the conductor cavity are not easy to be adhered through the arranged waterproof layer and the polyolefin sheath, after the cable main body is broken, moisture in the external environment leaks into the waterproof layer through the arrangement of the water outlet hole, the moisture can be stored through the water storage layer through storage and adsorption of the water storage layer, and when the moisture in the water storage layer reaches a critical value, the moisture is discharged through the water outlet hole, and the first wear-resisting ring arranged on the outer surface of the cable main body can improve the overall wear resistance of the cable main body, so that the cable damage caused by long-term wear is prevented.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to an irradiation crosslinking polyolefin insulated photovoltaic cable.
Background
The solar photovoltaic power generation does not need to occupy a large amount of land, has the advantages that a plurality of conventional power generation modes and other power generation modes do not have, and is clean, environment-friendly, green and safe renewable energy. As a key transmission component of a solar photovoltaic power generation system, a photovoltaic cable plays a vital role in the utilization of solar energy.
To this end, the chinese application patent No. CN202549439U discloses a tension-resistant high-temperature irradiation-resistant cross-linked polyolefin insulated photovoltaic cable, which comprises a copper conductor, a tension-resistant element, a high-temperature-resistant structure layer, a low-smoke halogen-free irradiation cross-linked flame-retardant polyolefin insulation layer, a low-smoke halogen-free high-temperature-resistant isolation layer, and a low-smoke halogen-free irradiation cross-linked flame-retardant polyolefin sheath layer; copper conductor and tensile element closely the transposition form a transposition body together, and the cladding of high temperature resistant structure layer is on the transposition body, and the cladding of low smoke and zero halogen irradiation cross-linked flame retardant polyolefin insulating layer is on high temperature resistant structure layer, and the cladding of low smoke and zero halogen irradiation cross-linked flame retardant polyolefin insulating layer is on low smoke and zero halogen irradiation cross-linked flame retardant polyolefin insulating layer, and the crowded package of low smoke and zero halogen irradiation cross-linked flame retardant polyolefin restrictive coating is on low smoke and zero halogen high temperature. The cable has a wider working temperature, namely the temporary overload of the conductor can reach +130 ℃, the working environment temperature is between 40 ℃ below zero and +110 ℃ (TUV upper limit +90 ℃), and meanwhile, the cable has the high-temperature resistance and the capability of meeting the environmental requirement that the short-term temperature exceeds 130 ℃, and has good ozone resistance, ultraviolet resistance, water vapor resistance and resistance. The high-temperature-resistant and environment-friendly composite material is provided with a tensile element, a high-temperature-resistant structural layer and a low-smoke halogen-free irradiation crosslinking flame-retardant polyolefin insulating layer, so that the high-temperature-resistant and environment-friendly composite material is high in high-temperature resistance and environment adaptability.
If the thickness of current photovoltaic cable insulating layer and sheath is designed too thinly, then the cable is difficult to pass through whole line high temperature pressure test and resistant indent test, and the thickness of insulating and sheath is too thick, then the cable external diameter is great, can cause the cable to mismatch with the photovoltaic terminal box to and material cost's waste, it is the same according to the insulating of its photovoltaic cable of contrast patent and the base stock of sheath material, the performance is similar basically, if extrude simultaneously, often can cause insulating and sheath adhesion.
In view of the above problems, there is a need to provide a radiation-crosslinked polyolefin insulated photovoltaic cable to solve the above problems.
Disclosure of Invention
The invention aims to provide an irradiation crosslinking polyolefin insulated photovoltaic cable, which aims to solve the problems that the insulation and the sheath of the existing photovoltaic cable proposed in the background art are easily adhered due to the fact that the base materials of the insulation and the sheath are the same and the performances are basically similar.
In order to achieve the above object, the present invention provides an irradiation crosslinking polyolefin insulated photovoltaic cable, comprising a cable main body, wherein a cable jacket is arranged on the outer surface of the cable main body, a polyolefin sheath is arranged on the inner surface of the cable jacket, a waterproof layer is fixedly connected to the inner surface of the polyolefin sheath, a conductor cavity is arranged on the inner surface of the waterproof layer, a tin-plated copper conductor is inserted into the conductor cavity, a limiting pad is arranged on the outer surface of the waterproof layer, the polyolefin sheath comprises talcum powder, the talcum powder is fixedly connected to the outer surface of the bottom end of the cable jacket, a second wear-resistant ring is fixedly connected to the outer surface of the bottom end of the talcum powder, a protective pad is arranged on the inner surface of the second wear-resistant ring, a polyolefin insulating layer is fixedly connected to the bottom, the inner surface of the connecting gasket is bonded with a first blocking layer, the outer surface of the second wear-resistant ring is of a spherical structure with a smooth structure, the second wear-resistant ring is sleeved on the peripheral outer surface of the protective pad, and the polyolefin insulating layer is made of high-polymer filler.
Preferably, the polyolefin insulating layer passes through glue fixed connection with the connection packing ring, the connection packing ring passes through glue fixed connection with first layer of blocking, the surface of polyolefin insulating layer is coarse structure's elastic material.
Preferably, the cable housing comprises a housing body, a first wear-resistant ring is arranged on the outer surface of the housing body, and fastening rings are fixedly connected to the bottom of the first wear-resistant ring.
Preferably, the first wear-resistant ring is of a spiral structure, the first wear-resistant ring is horizontally arranged on the outer surface of the shell body, and the first wear-resistant ring is bonded on the outer surface of the shell body through a fastening ring.
Preferably, the waterproof layer includes the apopore, the internal surface fixedly connected with retainer plate of apopore, the upper end surface of retainer plate is provided with the bleeder vent, the last surface mounting of bleeder vent has the outer jacket, the upper end bonding of outer jacket has the reservoir bed, the last fixed surface of reservoir bed is connected with the second and blocks the layer, the upper surface that the layer was blocked to the second is provided with the rubber packing ring, the last fixed surface of rubber packing ring is connected with the inner chamber.
Preferably, the apopore through connection is at the surface of bleeder vent and outer jacket, the surface of apopore is the rubber tube of smooth structure, the apopore is provided with two sets perpendicularly, and the apopore all sets up the upper and lower both sides surface at the reservoir.
Preferably, the surface of water storage layer is coarse structure's the elasticity material that absorbs water, and the water storage layer blocks the bottom surface on layer at the second through the fixed bonding of glue, the surface of bleeder vent is smooth structure's circular through-hole.
Preferably, the tin-plated copper conductor includes the inoxidizing coating, the internal surface bonding of inoxidizing coating has the shielding ring, the internal surface of shielding ring is provided with the conductor storehouse, the inside in conductor storehouse is inserted and is equipped with the copper core coil, the surface cover of copper core coil is equipped with the coil bluff piece.
Preferably, the outer surface of the copper core coil is a cylindrical copper pipe, the copper core coils are provided with inner surfaces inserted in the conductor bin, and the outer surface of the shielding ring is an insulating ferrule made of insulating materials.
Preferably, the limiting pad is fixedly installed on the outer surface of the waterproof layer, and the outer surface of the limiting pad is attached to the outer surface of the inner side of the polyolefin sheath.
Compared with the prior art, the invention has the beneficial effects that:
make difficult the gluing between tin-plated copper conductor and the conductor chamber through waterproof layer and the polyolefin sheath that sets up, make through setting up of apopore after the cable main part is breaking, the moisture content of its external environment leaks behind the inside of waterproof layer, adsorb through the storage of reservoir, make moisture can save through the reservoir, when moisture content reaches the critical value in the reservoir, discharge through the apopore, and then make the inside copper core cable of inner chamber can't receive the influence of steam, and scribble one deck talcum powder on insulating surface before crowded sheath, can play fine isolation to insulating and sheath, the holistic wearability of cable main part can be improved to first wear-resisting circle that its surface set up, cable damage because of long-term wearing and tearing cause has been prevented.
Drawings
FIG. 1 is a schematic view of the entire structure of the present invention;
FIG. 2 is a schematic side sectional view of the structure of the present invention;
FIG. 3 is a schematic cross-sectional side view of the tin-plated copper conductor structure of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 5 is a schematic sectional view of the waterproof layer of FIG. 2 according to the present invention in front view;
fig. 6 is a schematic front view of the cable jacket of fig. 2 according to the present invention.
In the figure: 1. a cable body; 2. a cable housing; 201. a shell body; 202. a first wear ring; 203. a fastening ring; 3. a polyolefin jacket; 301. talc powder; 302. a second wear ring; 303. a protective pad; 304. a polyolefin insulating layer; 305. a connection washer; 306. a first blocking layer; 4. a waterproof layer; 401. a water outlet hole; 402. a stationary ring; 403. air holes are formed; 404. an outer jacket; 405. a water storage layer; 406. a second blocking layer; 407. a rubber gasket; 408. an inner cavity; 5. a catheter lumen; 6. a tin-plated copper conductor; 601. a protective layer; 602. a shield ring; 603. a coil guard sheet; 604. a copper core coil; 605. a conductor bin; 7. a limiting pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, an embodiment of the present invention is shown:
an irradiation crosslinking polyolefin insulation photovoltaic cable comprises a cable main body 1, a cable shell 2 is arranged on the outer surface of the cable main body 1, a polyolefin sheath 3 is arranged on the inner surface of the cable shell 2, a waterproof layer 4 is fixedly connected to the inner surface of the polyolefin sheath 3, a conductor cavity 5 is arranged on the inner surface of the waterproof layer 4, a tinned copper conductor 6 is inserted in the conductor cavity 5, a limiting pad 7 is arranged on the outer surface of the waterproof layer 4, the polyolefin sheath 3 comprises talcum powder 301, the talcum powder 301 is fixedly connected to the outer surface of the bottom end of the cable shell 2, a second wear-resistant ring 302 is fixedly connected to the outer surface of the bottom end of the talcum powder 301, a protective pad 303 is arranged on the inner surface of the second wear-resistant ring 302, a polyolefin insulation layer 304 is fixedly connected to the bottom end of the protective pad 303, the outer surface of the second wear-resistant ring 302 is a spherical structure with a smooth structure, the second wear-resistant ring 302 is sleeved on the peripheral outer surface of the protective pad 303, the polyolefin insulating layer 304 is high polymer filler, the polyolefin insulating layer 304 is fixedly connected with the connecting gasket 305 through glue, the connecting gasket 305 is fixedly connected with the first blocking layer 306 through glue, the outer surface of the polyolefin insulating layer 304 is an elastic material with a rough structure, the irradiation crosslinking wire is a wire manufactured by using an irradiation crosslinking process, the irradiation crosslinking is a wire manufactured by using a high-energy electron beam generated by an electron accelerator to bombard the insulating layer to break molecular chains to form macromolecular free radicals, and then the macromolecular free radicals are recombined into crosslinking bonds, so that the original linear molecular structure is changed into a three-dimensional reticular molecular structure to form crosslinking, and the irradiation crosslinking wire is a novel home decoration building wire developed and produced by using the physical method, the electric wire has the characteristics of environmental protection, safety, long service life and the like, has excellent mechanical and physical properties, good environmental stress cracking resistance and excellent wear resistance, can bear concentrated mechanical stress better than PVC and PE, has various chemical solvents resistance, is stable in various surrounding corrosive media, has smaller outer diameter than that of an all polyvinyl chloride insulated electric wire with the same specification section, can reduce the using pipe diameter in pipe penetrating construction or penetrate more electric wires under the condition of the same pipe diameter, reduces the building installation cost, has much lighter weight than that of a polyvinyl chloride insulated electric wire product, is more convenient to install and transport, reduces the labor intensity and the transportation cost, has the highest rated temperature of 125 ℃ when the irradiation crosslinked insulated electric wire works for a long time, has the highest rated temperature of more than that of the polyvinyl chloride insulated electric wire, the cable does not release corrosive gas and toxic gas during combustion, does not produce secondary hazard, meets the requirement of modern fire safety, is a novel environment-friendly product, has good electrical performance, has much higher insulation resistance compared with a PVC electric wire (cable), has a very small dielectric loss tangent value tan delta, and basically does not change along with the change of temperature, after the polyolefin insulation layer 304 and the sheath are extruded and printed, and are subjected to irradiation crosslinking once, the elongation rate under the insulated load is controlled to be 40-50%, the sheath is controlled to be 30-40%, the polyolefin sheath 3 is made of a non-blooming material, because the photovoltaic cable is subjected to double 95 tests at the outlet, namely is placed in an environment with the temperature of 95 ℃ and the humidity of 95% for 7 days, and the blooming phenomenon does not occur on the surface of the cable.
Spacing pad 7 fixed mounting is at the surface of waterproof layer 4, and the surface laminating of spacing pad 7 is at the inboard surface of polyolefin sheath 3, cable jacket 2 includes shell body 201, the surface of shell body 201 is provided with first wear-resisting circle 202, the bottom fixed connection of first wear-resisting circle 202 has fastening ring 203, first wear-resisting circle 202 is helical structure, and first wear-resisting circle 202 horizontal installation is at the surface of shell body 201, first wear-resisting circle 202 passes through the surface of fastening ring 203 bonding at shell body 201, when the cable is laying, make cable body 1's surface wearability stronger through the setting up of first wear-resisting circle 202, prevented to lead to the holistic damage of cable because of the wearability is relatively poor.
The waterproof layer 4 comprises a water outlet hole 401, a fixing ring 402 is fixedly connected to the inner surface of the water outlet hole 401, the outer surface of the upper end of the fixing ring 402 is provided with a vent hole 403, an outer protective layer 404 is mounted on the upper surface of the vent hole 403, a water storage layer 405 is bonded to the upper end of the outer protective layer 404, a second blocking layer 406 is fixedly connected to the upper surface of the water storage layer 405, rubber gaskets 407 are arranged on the upper surface of the second blocking layer 406, the upper surface of each rubber gasket 407 is fixedly connected with an inner cavity 408, the water outlet hole 401 is connected to the outer surfaces of the vent hole 403 and the outer protective layer 404 in a penetrating manner, the outer surface of the water outlet hole 401 is a rubber tube with a smooth structure, two groups of water outlet holes 401 are vertically arranged, the water outlet holes 401 are all arranged on the outer surfaces of the upper side and the lower side, the surface of bleeder vent 403 is the circular through-hole of smooth structure, after cable body 1 exposes in outdoor environment throughout the year and month, its surface material easily causes the damage rupture because of corroding, after its surface rupture, ponding permeates into the surface of reservoir 405 through retainer plate 402 and outer jacket 404 through the infiltration hole, make reservoir 405 can be through storing ponding, when ponding storage is excessive, carry out moisture content discharge to it through the hole that apopore 401 set up, and block the isolated of layer 406 through the second, make moisture content can't permeate into the inside of rubber packing ring 407, thereby prevented to persist and then cause the corruption to cable body 1 because of ponding for a long time in every of cable body 1, thereby the life of serious influence cable.
The tin-plated copper conductor 6 comprises a protective layer 601, a shielding ring 602 is adhered to the inner surface of the protective layer 601, a conductor bin 605 is arranged on the inner surface of the shielding ring 602, a copper core coil 604 is inserted into the conductor bin 605, a coil protection sheet 603 is sleeved on the outer surface of the copper core coil 604, the outer surface of the copper core coil 604 is a cylindrical copper pipe, the copper core coils 604 are all provided with inner surfaces inserted into the conductor bin 605, the outer surface of the shielding ring 602 is an insulating ferrule made of insulating materials, and the inert metal layer is coated on the outer surface of the shielding ring, so that the oxidation resistance of copper can be remarkably improved, and the conductivity of the copper can be. The resistivity is low: the resistivity of the aluminum core cable is about 1.68 times higher than that of the copper core cable, and the ductility is good: the ductility of the copper alloy is 20-40%, the ductility of the electrician copper is more than 30%, the ductility of the aluminum alloy is only 18%, and the strength is high: the response stress at normal temperature is 7-28% higher than that of aluminum. In particular, the stress at high temperature, which is far from the stress at high temperature, resists fatigue: aluminum materials are easy to crack after being repeatedly bent, and copper is not easy to crack. In the aspect of an elastic target, copper is 1.7-1.8 times higher than aluminum, and the copper-aluminum alloy has good stability and corrosion resistance: the copper core is oxidation resistant and corrosion resistant, while the aluminum core is simply oxidized and corroded, and the current-carrying capacity is large: because the resistivity is low, the current-carrying capacity (maximum current that can pass) of the copper core cable with the same section is about 30% higher than that of the aluminum core cable, and the voltage loss is low: because the resistivity of the copper-core cable is low, the same current flows in the same cross section. The voltage drop of the copper core cable is small. The same power transmission interval can ensure higher voltage quality; under the condition of the corresponding voltage drop, the power transmission of the copper-core cable reaches a far distance, namely, the power supply coverage area is large, the network planning is facilitated, the number of the power supply points is reduced, tin does not belong to inert metal and is more reactive than copper in nature, but the tin is very stable in the air at normal temperature, and a layer of compact oxide film is generated on the surface of the tin to prevent the tin from being oxidized continuously, so that the oxidation resistance of the copper can be improved to a certain extent by tinning the surface of the copper. The tin-plated copper has good stability, conductivity, wear resistance, corrosion resistance and electromagnetic shielding property.
The working principle is as follows: the tin-plated copper conductor 6 is uniformly inserted into the inner surface of the conductor cavity 5, and under the arrangement of the polyolefin insulation layer 304, the connection gasket 305 and the first blocking layer 306, the overall corrosion resistance and wear resistance of the tin-plated copper conductor 6 are stronger, and after the tin-plated copper conductor 6 is installed, the shielding ring 602 and the protective layer 601 effectively insulate the tin-plated copper conductor 6.
When the surface of cable main body 1 breaks and then oozes the water, its surface material causes the damage easily to break because of the corruption, after its surface breaks, ponding passes through the surface that retainer plate 402 and outer jacket 404 permeate into aqua storage layer 405 through the infiltration hole, make aqua storage layer 405 can be through storing ponding, when ponding storage is excessive, carry out moisture content discharge to it through the hole that apopore 401 set up, and block the isolated of layer 406 through the second, make moisture content can't permeate into the inside of rubber packing ring 407.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. An irradiation crosslinked polyolefin insulated photovoltaic cable comprising a cable main body (1), characterized in that: the cable comprises a cable body (1), wherein a cable shell (2) is arranged on the outer surface of the cable body (1), a polyolefin sheath (3) is arranged on the inner surface of the cable shell (2), a waterproof layer (4) is fixedly connected to the inner surface of the polyolefin sheath (3), a conductor cavity (5) is arranged on the inner surface of the waterproof layer (4), a tin-plated copper conductor (6) is inserted into the conductor cavity (5), a limiting pad (7) is arranged on the outer surface of the waterproof layer (4), the polyolefin sheath (3) comprises talcum powder (301), the talcum powder (301) is fixedly connected to the outer surface of the bottom end of the cable shell (2), a second wear-resistant ring (302) is fixedly connected to the outer surface of the bottom end of the talcum powder (301), a protective pad (303) is arranged on the inner surface of the second wear-resistant ring (302), and a polyolefin insulating layer (304), the inner surface of the polyolefin insulation layer (304) is bonded with a connecting gasket (305), the inner surface of the connecting gasket (305) is bonded with a first blocking layer (306), the outer surface of the second wear-resistant ring (302) is of a spherical structure with a smooth structure, the second wear-resistant ring (302) comprises a surrounding outer surface sleeved on the protective pad (303), and the polyolefin insulation layer (304) is made of high polymer filler.
2. The radiation crosslinked polyolefin insulated photovoltaic cable of claim 1, characterized in that: the polyolefin insulating layer (304) is fixedly connected with the connecting gasket (305) through glue, the connecting gasket (305) is fixedly connected with the first blocking layer (306) through glue, and the outer surface of the polyolefin insulating layer (304) is made of an elastic material with a rough structure.
3. The radiation crosslinked polyolefin insulated photovoltaic cable of claim 1, characterized in that: the cable shell (2) comprises a shell body (201), a first wear-resisting ring (202) is arranged on the outer surface of the shell body (201), and fastening rings (203) are fixedly connected to the bottom of the first wear-resisting ring (202).
4. The radiation crosslinked polyolefin insulated photovoltaic cable of claim 3, characterized in that: the first wear-resistant ring (202) is of a spiral structure, the first wear-resistant ring (202) is horizontally arranged on the outer surface of the shell body (201), and the first wear-resistant ring (202) is bonded on the outer surface of the shell body (201) through a fastening ring (203).
5. The radiation crosslinked polyolefin insulated photovoltaic cable of claim 1, characterized in that: waterproof layer (4) include apopore (401), the internal surface fixedly connected with retainer plate (402) of apopore (401), the upper end surface of retainer plate (402) is provided with bleeder vent (403), the last surface mounting of bleeder vent (403) has outer jacket (404), the upper end bonding of outer jacket (404) has water reservoir (405), the last fixed surface of water reservoir (405) is connected with the second and blocks layer (406), the upper surface that the layer (406) was blocked to the second is provided with rubber packing ring (407), the last fixed surface of rubber packing ring (407) is connected with inner chamber (408).
6. The radiation crosslinked polyolefin insulated photovoltaic cable of claim 5, characterized in that: apopore (401) run through the surface of connecting in bleeder vent (403) and outer jacket (404), the surface of apopore (401) is the rubber tube of smooth structure, apopore (401) are provided with two sets ofly perpendicularly, and apopore (401) all set up the upper and lower both sides surface at aqua storage layer (405).
7. The radiation crosslinked polyolefin insulated photovoltaic cable of claim 5, characterized in that: the surface of reservoir stratum (405) is coarse texture's elasticity material that absorbs water, and reservoir stratum (405) blocks the bottom surface of layer (406) at the second through the fixed bonding of glue, the surface of bleeder vent (403) is smooth structure's circular through-hole.
8. The radiation crosslinked polyolefin insulated photovoltaic cable of claim 1, characterized in that: the tin-plated copper conductor (6) comprises a protective layer (601), a shielding ring (602) is bonded on the inner surface of the protective layer (601), a conductor bin (605) is arranged on the inner surface of the shielding ring (602), a copper core coil (604) is inserted into the conductor bin (605), and a coil protection sheet (603) is sleeved on the outer surface of the copper core coil (604).
9. The radiation crosslinked polyolefin insulated photovoltaic cable of claim 8, characterized in that: the outer surface of the copper core coil (604) is a cylindrical copper pipe, the copper core coil (604) is provided with an inner surface inserted in the conductor bin (605), and the outer surface of the shielding ring (602) is an insulating ferrule made of insulating materials.
10. The radiation crosslinked polyolefin insulated photovoltaic cable of claim 1, characterized in that: the limiting pad (7) is fixedly arranged on the outer surface of the waterproof layer (4), and the outer surface of the limiting pad (7) is attached to the outer surface of the inner side of the polyolefin sheath (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011305880.5A CN112635116A (en) | 2020-11-19 | 2020-11-19 | Irradiation crosslinking polyolefin insulation photovoltaic cable |
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| CN202011305880.5A CN112635116A (en) | 2020-11-19 | 2020-11-19 | Irradiation crosslinking polyolefin insulation photovoltaic cable |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52128580A (en) * | 1976-04-20 | 1977-10-28 | Showa Electric Wire & Cable Co | Crossslinked polyolefin insulated cable |
| JPH0376737A (en) * | 1989-08-17 | 1991-04-02 | Mitsubishi Cable Ind Ltd | Water running-preventive composition and water running-preventive cable manufactured therewith |
| CN103151106A (en) * | 2013-01-09 | 2013-06-12 | 广东中宝联合电缆有限公司 | Movable cable of resistance to drag and scraping prevention and extrusion forming mould device thereof |
| CN105225741A (en) * | 2015-09-23 | 2016-01-06 | 广西资优电气设备有限公司 | A kind of cable of high structural strength |
| CN205004064U (en) * | 2015-08-25 | 2016-01-27 | 天津朗兴电线电缆有限公司 | Low noise cable with automatic distortion power that reduces |
| CN205318903U (en) * | 2016-01-28 | 2016-06-15 | 郑真阳 | Dampproofing railway signal cable |
| CN106229040A (en) * | 2016-08-31 | 2016-12-14 | 扬州光明电缆有限公司 | A kind of converter special cable |
| CN209199635U (en) * | 2018-09-05 | 2019-08-02 | 无锡市昌盛电力建设有限公司 | A kind of cable provideing protection against wear with anti-corrosion function |
| CN111370176A (en) * | 2020-04-18 | 2020-07-03 | 冷辉 | Moisture-proof cable |
| CN211319787U (en) * | 2020-03-11 | 2020-08-21 | 江苏西贝电子网络有限公司 | Fire-resistant cable |
| CN111584127A (en) * | 2020-06-12 | 2020-08-25 | 湖北航天电缆有限公司 | Oil-resistant and ultraviolet-proof B1-level direct-current power cable |
| CN211879100U (en) * | 2020-05-29 | 2020-11-06 | 四川豪琪线缆有限公司 | Fire-resistant power cable of crosslinked polyethylene |
-
2020
- 2020-11-19 CN CN202011305880.5A patent/CN112635116A/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52128580A (en) * | 1976-04-20 | 1977-10-28 | Showa Electric Wire & Cable Co | Crossslinked polyolefin insulated cable |
| JPH0376737A (en) * | 1989-08-17 | 1991-04-02 | Mitsubishi Cable Ind Ltd | Water running-preventive composition and water running-preventive cable manufactured therewith |
| CN103151106A (en) * | 2013-01-09 | 2013-06-12 | 广东中宝联合电缆有限公司 | Movable cable of resistance to drag and scraping prevention and extrusion forming mould device thereof |
| CN205004064U (en) * | 2015-08-25 | 2016-01-27 | 天津朗兴电线电缆有限公司 | Low noise cable with automatic distortion power that reduces |
| CN105225741A (en) * | 2015-09-23 | 2016-01-06 | 广西资优电气设备有限公司 | A kind of cable of high structural strength |
| CN205318903U (en) * | 2016-01-28 | 2016-06-15 | 郑真阳 | Dampproofing railway signal cable |
| CN106229040A (en) * | 2016-08-31 | 2016-12-14 | 扬州光明电缆有限公司 | A kind of converter special cable |
| CN209199635U (en) * | 2018-09-05 | 2019-08-02 | 无锡市昌盛电力建设有限公司 | A kind of cable provideing protection against wear with anti-corrosion function |
| CN211319787U (en) * | 2020-03-11 | 2020-08-21 | 江苏西贝电子网络有限公司 | Fire-resistant cable |
| CN111370176A (en) * | 2020-04-18 | 2020-07-03 | 冷辉 | Moisture-proof cable |
| CN211879100U (en) * | 2020-05-29 | 2020-11-06 | 四川豪琪线缆有限公司 | Fire-resistant power cable of crosslinked polyethylene |
| CN111584127A (en) * | 2020-06-12 | 2020-08-25 | 湖北航天电缆有限公司 | Oil-resistant and ultraviolet-proof B1-level direct-current power cable |
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Application publication date: 20210409 |