CN115985566B - Medium-voltage cross-linked flame-retardant power cable for anti-electricity tree - Google Patents
Medium-voltage cross-linked flame-retardant power cable for anti-electricity tree Download PDFInfo
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- CN115985566B CN115985566B CN202310250464.7A CN202310250464A CN115985566B CN 115985566 B CN115985566 B CN 115985566B CN 202310250464 A CN202310250464 A CN 202310250464A CN 115985566 B CN115985566 B CN 115985566B
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Abstract
The invention discloses an anti-electricity tree medium-voltage crosslinking flame-retardant power cable, which relates to the technical field of cables, wherein a supporting frame is uniformly sleeved on the outer side of an outer shielding layer, elastic rubber is sleeved on the outer side of the outer shielding layer, the elastic rubber is positioned between every two adjacent supporting frames, a mounting opening is formed in the middle of the outer side of the elastic rubber in a penetrating way, a mounting groove is formed in the outer side of the supporting frame, through holes are formed in two sides of the bottom surface of the mounting groove in a penetrating way, fixing lugs are embedded in the through holes and the fixing grooves, a spring piece is welded between two adjacent fixing lugs positioned on two adjacent supporting frames, external pressure applied to the cable is subjected to primary buffering through a heat-conducting silica gel piece, the residual external pressure is matched with the elastic rubber to absorb and buffer the residual external pressure, so that the external pressure cannot act on a conductor, mechanical stress cannot be generated by the conductor, and the promotion effect of the mechanical stress on the growth of an electric branch is avoided.
Description
Technical Field
The invention relates to the technical field of cables, in particular to an anti-electricity tree medium-voltage cross-linking flame-retardant power cable.
Background
The electric tree branch is commonly called as an electric tree, and is easy to age and damage in the operation process of the cable, mainly because the insulation is internally discharged to generate fine cracks to form fine channels, the channels are hollow, carbon particle marks generated by discharging are arranged on the pipe wall, the electric tree branch is dendritic in winter, the branch number is small and clear, the electric tree branch is a dendritic defect which can be observed from a microscope and is formed by air gaps, impurities or moisture in the crosslinked polyethylene cable insulating layer, uneven surfaces between the shielding layer and the insulating layer and the like, partial discharge is generated under the action of an electric field, and the insulation is aged and broken down.
The existing medium-voltage cable has weak pressure resistance, when the conductor in the cable receives external pressure, the cable conductor can generate mechanical stress, and the cable conductor containing the mechanical stress not only shortens the initiation time of the electric branch, but also quickens the growth speed of the electric branch, so that a power cable with strong pressure resistance is needed, and the external pressure can be greatly reduced to reduce the generation of the electric branch phenomenon.
Disclosure of Invention
The invention provides a medium-voltage cross-linked flame-retardant power cable for an electric tree, which can effectively solve the problems that the existing medium-voltage cable in the background art is weak in pressure resistance, when a conductor in the cable is subjected to external pressure, the cable conductor generates mechanical stress, and the cable conductor containing the mechanical stress not only shortens the initiation time of an electric tree branch, but also accelerates the growth speed of the electric tree branch.
In order to achieve the above purpose, the present invention provides the following technical solutions: the medium-voltage cross-linked flame-retardant power cable comprises a conductor, wherein an inner shielding layer is wrapped outside the conductor, an insulating layer is wrapped outside the inner shielding layer, an outer shielding layer is wrapped outside the insulating layer, a compression-resistant component is arranged outside the outer shielding layer, and the compression-resistant component comprises a supporting frame;
the outer side of the outer shielding layer is uniformly sleeved with a supporting frame, the outer side of the outer shielding layer is sleeved with elastic rubber, the outer side of the supporting frame is provided with a mounting groove, two sides of the mounting groove are provided with through holes in a penetrating mode, two sides of the bottom surface of the mounting groove are provided with fixing grooves, two ends of the bottom surface of the mounting groove are provided with clamping grooves, fixing lugs are embedded into the through holes and the fixing grooves, and a spring piece is welded between two adjacent fixing lugs on two adjacent supporting frames;
the mounting groove is internally clamped with a fixing plate, two ends of the bottom of the fixing plate are welded with clamping joints, a sliding groove is formed in the clamping joints, a fixing head is slidably mounted in the sliding groove, and a fixing spring is connected between one end of the fixing head and one side of the sliding groove.
According to the technical scheme, the elastic rubber is positioned between every two adjacent supporting frames, and the middle of the outer side of the elastic rubber is provided with the mounting opening in a penetrating way;
the fixed plate top has seted up the removal groove, remove groove both ends and slide groove and be linked together, the inside embedding of removal groove has the pull rod, pull rod bottom both ends and fixed head top interconnect.
According to the technical scheme, the conductors, the inner shielding layer, the insulating layer and the outer shielding layer are sequentially and tightly attached to each other, and the longitudinal section of the support frame is in the shape of an equilateral triangle.
According to the technical scheme, the inner side of the elastic rubber is tightly attached to the outer side of the outer shielding layer, and the longitudinal section of the elastic rubber is in the shape of an equilateral triangle;
fixing holes are formed in two sides of the inside of the clamping groove, and the cross section of each fixing lug is L-shaped.
According to the technical scheme, the inner wall of the sliding groove is tightly attached to the outer surface of the fixed head, and the contact surfaces between the sliding groove and the fixed head are smooth surfaces.
According to the technical scheme, the cross section of the spring piece is wavy, and the outer side of the elastic rubber is attached to the inner side of the spring piece.
According to the technical scheme, the moisture-proof assembly is arranged on the outer side of the elastic rubber and comprises a water suction pipe;
the support frame both sides weld in the water suction pipe one end, the water suction hole has evenly been seted up to the water suction pipe surface, the end cap is installed in the rotation of water suction pipe other end, every two adjacency water suction sponge has been clamped between the water suction pipe on the support frame, the embedding hole has been seted up at water suction sponge both ends, the water suction pipe is embedded in the embedding hole inside.
According to the technical scheme, the outer side of the outer shielding layer is provided with the cooling component, and the cooling component comprises a heat conducting rod;
the outer side of the outer shielding layer is provided with a heat conducting rod which is positioned in the center of the supporting frame and penetrates through the inside of the elastic rubber, the outer side of the heat conducting rod is uniformly provided with fixed threads, the outer side of the fixed threads is rotationally provided with a thread bush, the outer side of the thread bush is welded with a rotating seat, the inside of the rotating seat is rotationally provided with a sleeve rod, the outer side of the sleeve rod is slidingly provided with a sleeve, the telescopic spring is connected between the loop bar and the sleeve, the supporting piece is welded at the top of the sleeve, the loop bar and the sleeve penetrate through the inside of the mounting opening, the connecting plate is mounted on the inner side of the support frame, the heat conducting piece is welded on the outer side of the connecting plate, the flame-retardant layer is wrapped on the outer side of the support frame, the sheath is wrapped on the flame-retardant layer, and the heat conducting silica gel piece is embedded between the spring piece and the flame-retardant layer.
According to the technical scheme, the outer side of the heat conducting rod is tightly attached to one end of the heat conducting fin, and heat conducting silicone grease is smeared between the connecting plate and the supporting frame.
According to the technical scheme, the outer wall of the loop bar and the inner wall of the sleeve are smooth curved surfaces, and the outer wall of the loop bar is tightly attached to the inner wall of the sleeve.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:
1. be provided with compression resistance module, the support frame can strengthen cable self intensity, and can separate external pressure and conductor, apply the external pressure on the cable, preliminary buffering is carried out through the heat conduction silica gel piece earlier, remaining external pressure extrusion spring leaf, the spring leaf is buckled, cooperation elastic rubber absorbs the buffering to remaining external pressure, make external pressure unable effect on the conductor, make the conductor can not produce mechanical stress, avoid mechanical stress to the promotion effect of electric branch growth, and every spring leaf is independent installation, utilize the joint each other between the part, make the installation dismantle convenient and fast more.
2. Be provided with dampproofing subassembly, utilize the hydroscopicity of the sponge that absorbs water, absorb the inside moisture of cable, the inside water absorbent of having placed of water absorption pipe, the composition of water absorbent is polyacrylate formula high water absorbent resin, and moisture passes the hole of absorbing water, enters into in the water absorption pipe, and the water absorbent absorbs moisture, and the sponge is absorbed in the cooperation, makes the effect of absorbing water better, and the end cap is connected through the screw thread with the water absorption pipe, makes things convenient for the placing of water absorbent, convenient and fast.
3. The heat-conducting cable is provided with a cooling component, heat generated by a conductor is conducted on a heat-conducting rod, the heat is conducted to a heat-conducting silica gel sheet through a heat-conducting sheet and a supporting frame, the heat on the heat-conducting rod is conducted to the supporting sheet and a spring sheet through a thread sleeve, the spring sheet is tightly attached to the heat-conducting silica gel sheet, and finally the heat generated by the conductor is emitted from a sheath under the conduction effect of the heat-conducting silica gel sheet, so that the heat-conducting material is excellent, the heat dissipation path and area are increased, the temperature inside the cable is rapidly reduced, and the electric branch initiation rate is reduced.
In conclusion, the compression-resistant component and the cooling component are matched with each other, so that the occurrence rate of the phenomenon of electric branches is greatly reduced, the service life of the cable is greatly prolonged, the moisture-resistant component can absorb moisture, the moisture is prevented from entering between the conductor and the insulating layer, and the phenomenon of water branches is avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the cable of the present invention;
FIG. 3 is a schematic view of the mounting structure of the spring plate of the present invention;
FIG. 4 is a schematic view of the mounting structure of the support sheet of the present invention;
FIG. 5 is a schematic view of the mounting structure of the elastic rubber of the present invention;
FIG. 6 is a schematic diagram of a cooling assembly of the present invention;
FIG. 7 is a schematic view of the mounting structure of the sleeve of the present invention;
fig. 8 is a schematic view of the installation structure of the heat conductive sheet of the present invention;
FIG. 9 is a schematic view of a structure of a clamping groove according to the present invention;
FIG. 10 is a schematic view of the mounting structure of the stationary head of the present invention;
reference numerals in the drawings: 1. a conductor; 2. an inner shielding layer; 3. an insulating layer; 4. an outer shielding layer; 8. a flame retardant layer; 9. a sheath;
5. a cooling component; 501. a heat conduction rod; 502. a fixed thread; 503. a thread sleeve; 504. a rotating seat; 505. a loop bar; 506. a sleeve; 507. a telescopic spring; 508. a support sheet; 509. a connecting plate; 510. a heat conductive sheet; 511. a thermally conductive silicone sheet;
6. a compression resistant assembly; 601. a support frame; 602. an elastic rubber; 603. a mounting port; 604. a mounting groove; 605. a through hole; 606. a fixing groove; 607. a clamping groove; 608. a spring piece; 609. a fixed ear; 610. a fixing plate; 611. a clamping joint; 612. a sliding groove; 613. a fixed head; 614. a fixed spring; 615. a pull rod; 616. a moving groove;
7. a moisture resistant assembly; 701. a water suction pipe; 702. a water suction hole; 703. a plug; 704. a water absorbing sponge; 705. and is inserted into the hole.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples: as shown in fig. 1-10, the invention provides a technical scheme of an electric tree medium voltage crosslinked flame-retardant power cable, which comprises a conductor 1, wherein an inner shielding layer 2 is wrapped outside the conductor 1, an insulating layer 3 is wrapped outside the inner shielding layer 2, an outer shielding layer 4 is wrapped outside the insulating layer 3, gaps among the conductor 1, the inner shielding layer 2, the insulating layer 3 and the outer shielding layer 4 are sequentially and tightly adhered, gaps among the layers are reduced, impurities such as external metal powder and the like are prevented from entering into the gaps between the insulating layer 3 and the conductor 1, partial discharge caused by overhigh concentrated field intensity in the insulating layer 3 is prevented from being caused, the insulating layer 3 is broken down in a dendritic ageing manner, and a compression assembly 6 is arranged outside the outer shielding layer 4;
the compression-resistant assembly 6 comprises a support frame 601, elastic rubber 602, a mounting opening 603, a mounting groove 604, a through opening 605, a fixing groove 606, a clamping groove 607, a spring piece 608, a fixing lug 609, a fixing plate 610, a clamping joint 611, a sliding groove 612, a fixing head 613, a pull rod 615 and a moving groove 616;
the outer side of the outer shielding layer 4 is uniformly sleeved with a supporting frame 601, the longitudinal section of the supporting frame 601 is in an equilateral triangle shape, so that the compression resistance of the supporting frame 601 is stronger, the outer side of the outer shielding layer 4 is sleeved with an elastic rubber 602, the inner side of the elastic rubber 602 is tightly attached to the outer side of the outer shielding layer 4, the stability of the elastic rubber 602 is higher, the elastic rubber 602 is prevented from shaking in a cable, the longitudinal section of the elastic rubber 602 is in an equilateral triangle shape, the elastic rubber 602 is positioned between every two adjacent supporting frames 601, a mounting opening 603 is penetrated and formed in the middle of the outer side of the elastic rubber 602, a mounting groove 604 is formed in the outer side of the supporting frame 601, through openings 605 are penetrated and formed in the two sides of the bottom surface of the mounting groove 604, fixing grooves 606 are formed in the two ends of the bottom surface of the mounting groove 604, clamping grooves 607 are formed in the two ends of the bottom surface of the mounting groove 605, fixing lugs 609 are embedded in the through openings 605 and the fixing grooves 606, the cross section of the fixing lugs 609 are L-shaped, the fixing lugs 609 are fixed more stably, the spring piece 608 is welded between two adjacent fixing lugs 609 on two adjacent supporting frames 601, the cross section of the spring piece 608 is wave-shaped, the outer side of the elastic rubber 602 is attached to the inner side of the spring piece 608, when the spring piece 608 is bent by external pressure, the elastic rubber 602 is matched to absorb and buffer the external pressure, the conductor 1 is prevented from bearing the external pressure, the fixing plate 610 is clamped in the installation groove 604, the clamping connectors 611 are welded at two ends of the bottom of the fixing plate 610, the sliding grooves 612 are formed in the clamping connectors 611, the fixing heads 613 are slidably arranged in the sliding grooves 612, the fixing springs 614 are connected between one end of each fixing head 613 and one side of the sliding groove 612, the fixing holes are formed in two sides of the inner part of each clamping groove 607, the fixing heads 613 can be embedded into the fixing holes, the fixing plate 610 can be fixed in the installation groove 604, the inner wall of the sliding groove 612 is tightly attached to the outer surface of the fixed head 613, the contact surface between the sliding groove 612 and the fixed head 613 is smooth, the relative friction force between the sliding groove 612 and the fixed head 613 is reduced, the fixed head 613 can smoothly move in the sliding groove 612, the top of the fixed plate 610 is provided with a moving groove 616, the two ends of the moving groove 616 are communicated with the sliding groove 612, a pull rod 615 is embedded in the moving groove 616, and the two ends of the bottom of the pull rod 615 are mutually connected with the top of the fixed head 613;
the outside of the elastic rubber 602 is provided with a moistureproof assembly 7;
the dampproof assembly 7 comprises a water suction pipe 701, a water suction hole 702, a plug 703, a water suction sponge 704 and an embedding hole 705;
two sides of the support frame 601 are welded at one end of the water suction pipe 701, water suction holes 702 are uniformly formed in the outer surface of the water suction pipe 701, plugs 703 are rotatably arranged at the other end of the water suction pipe 701, water suction sponges 704 are clamped between the water suction pipes 701 on every two adjacent support frames 601, embedded holes 705 are formed in two ends of each water suction sponge 704, and the water suction pipes 701 are embedded into the embedded holes 705;
a cooling component 5 is arranged outside the outer shielding layer 4;
the cooling component 5 comprises a heat conducting rod 501, a fixed thread 502, a thread sleeve 503, a rotating seat 504, a sleeve rod 505, a sleeve 506, a telescopic spring 507, a supporting sheet 508, a connecting plate 509, a heat conducting sheet 510 and a heat conducting silica gel sheet 511;
the heat conducting rod 501 is arranged on the outer side of the outer shielding layer 4, the heat conducting rod 501 is located in the center of the supporting frame 601 and penetrates through the inside of the elastic rubber 602, the fixing thread 502 is evenly arranged on the outer side of the heat conducting rod 501, the thread sleeve 503 is rotatably arranged on the outer side of the fixing thread 502, the rotating seat 504 is welded on the outer side of the thread sleeve 503, the sleeve 505 is rotatably arranged in the rotating seat 504, the sleeve 506 is slidably arranged on the outer side of the sleeve 505, the outer wall of the sleeve 505 and the inner wall of the sleeve 506 are smooth, the relative friction between the sleeve 505 and the sleeve 506 is reduced, the sleeve 506 moves on the sleeve 505 more smoothly, the outer wall of the sleeve 505 is tightly attached to the inner wall of the sleeve 506, heat on the heat conducting rod 501 can be conducted on the spring piece 608 through the sleeve 505, the sleeve 506 and the supporting piece 508 quickly, the heat dissipation capacity is enhanced, the telescopic spring 507 is connected between the sleeve 505 and the sleeve 506, the supporting frame 506 is welded on the top of the supporting frame 508, the sleeve 505 and the sleeve 506 penetrates through the inside 603, the connecting plate 509 is arranged on the inner side of the supporting frame 601, the outer side of the connecting plate 509 is welded with the heat conducting piece 510, one end 601 is tightly attached to one end of the sleeve 510, the heat conducting piece 601 is tightly attached to the connecting plate 601, the heat conducting layer is tightly attached to the inner side of the connecting plate 509, the heat conducting layer is coated with the heat conducting layer is coated on the supporting frame 8, the heat conducting layer is coated with heat conducting layer, the heat conducting layer is coated on the heat conducting layer is coated with heat conducting layer, and has heat conducting layer is coated with heat, and has heat is.
The working principle and the using flow of the invention are as follows: when the cable sheath 9 is subjected to external pressure, the external pressure is conducted on the support frame 601 and the heat-conducting silica gel sheet 511 through the sheath 9 and the flame-retardant layer 8, the flame-retardant layer 8 is made of PVC material added with halogen flame retardance, the flame-retardant cable has good flame retardant property, the support frame 601 plays a role in reinforcing the strength of the cable, the external pressure and the conductor 1 can be blocked, the external pressure conducted on the heat-conducting silica gel sheet 511 is initially buffered through the heat-conducting silica gel sheet 511, the rest external pressure extrudes the spring piece 608, the spring piece 608 is bent, the rest external pressure is absorbed and buffered by matching with the elastic rubber 602, so that the external pressure cannot act on the conductor 1, each spring piece 608 of the cable is independently installed, the production and maintenance of the cable are facilitated, and when the spring piece 608 is assembled, the L-shaped fixing lug 609 is embedded into the through hole 605 and the fixing groove 606, the clamping connector 611 on the fixing plate 610 is embedded into the clamping groove 607, the fixing head 613 is embedded into the fixing hole on one side of the clamping groove 607 under the action of the fixing spring 614, the fixing plate 610 is fixed in the mounting groove 604, the fixing lug 609 is fixed by the fixing plate 610, the spring piece 608 is prevented from being separated, when a cable is maintained, a damaged section of the cable is taken down, a new section of the cable is replaced, when the damaged cable is processed, the cable sheath 9 and the flame retardant layer 8 are stripped, the pull rod 615 in the moving groove 616 is pulled, the fixing spring 614 is contracted, the clamping connector 611 is removed from the clamping groove 607, the spring piece 608 and the fixing plate 610 are taken down, and components such as the spring piece 608 are recycled;
be provided with dampproofing subassembly 7, if the cable is outside damaged, utilize the hydroscopicity of water absorbing sponge 704, can absorb the inside moisture of cable, the inside water absorbent of having placed of water-absorbing pipe 701, the composition of water absorbent is polyacrylate formula super absorbent resin, moisture passes water absorption hole 702, enter into in the water absorbent pipe 701, the water absorbent absorbs the moisture, cooperation water absorbing sponge 704 makes dehumidification effect better, plug 703 is connected through the screw thread with water absorbent pipe 701, make things convenient for the placing and the replacement of water absorbent.
The medium voltage cable is in the state of being electrified, conductor 1 can produce heat, and along with the rise of temperature, the electric branch initiation rate presents the rising trend, consequently accelerate the heat dissipation of cable temperature, be provided with cooling module 5, support frame 601, heat conduction pole 501, the thread bush 503, rotating seat 504, loop bar 505, sleeve 506 and backing sheet 508 material are the copper aluminum alloy, the copper aluminum alloy makes the heat conduction fast, the heat conduction that conductor 1 produced is on heat conduction pole 501, on support frame 601 through heat conduction pole 510 and connecting plate 509 conduction, again on heat conduction silica gel piece 511 through support frame 601 conduction, the backing sheet 508 makes the backing sheet 508 laminate in real time in the spring leaf 608 under the effect of extension spring 507, heat on the heat conduction pole 501 passes through thread bush 503, rotating seat 504, loop bar 505, sleeve 506 and backing sheet 508 conduction on spring leaf 608 in proper order, the spring leaf 608 closely laminates with heat conduction silica gel piece 511 again, finally the heat that conductor 1 produced, give off from sheath 9 under the conduction effect of heat conduction silica gel piece 511, make the inside the cable fast cooling under the heat that utilizes good heat conduction material, reduce the electric branch initiation rate.
Finally, it should be noted that: the foregoing is merely a preferred example of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a fire-retardant power cable of anti electric tree middling pressure cross-linking, includes conductor (1), conductor (1) outside parcel has interior shielding layer (2), interior shielding layer (2) outside parcel has insulating layer (3), insulating layer (3) outside parcel has outer shielding layer (4), characterized in that, outer shielding layer (4) outside is provided with compressive assembly (6), compressive assembly (6) include support frame (601);
the outer side of the outer shielding layer (4) is uniformly sleeved with a supporting frame (601), the outer side of the outer shielding layer (4) is sleeved with elastic rubber (602), and the outer side of the elastic rubber (602) is provided with a moistureproof assembly (7);
the elastic rubber (602) is internally provided with a mounting opening (603) in a penetrating way in the outer side, the outer side of the supporting frame (601) is provided with a mounting groove (604), two sides of the mounting groove (604) are provided with through holes (605) in a penetrating way, two sides of the bottom surface of the mounting groove (604) are provided with fixing grooves (606), two ends of the bottom surface of the mounting groove (604) are provided with clamping grooves (607), the through holes (605) and the fixing grooves (606) are internally embedded with fixing lugs (609), and a spring piece (608) is welded between two adjacent fixing lugs (609) on two adjacent supporting frames (601);
the mounting groove (604) is internally clamped with a fixed plate (610), two ends of the bottom of the fixed plate (610) are welded with clamping joints (611), sliding grooves (612) are formed in the clamping joints (611), fixed heads (613) are slidably arranged in the sliding grooves (612), and a fixed spring (614) is connected between one end of each fixed head (613) and one side of each sliding groove (612);
a movable groove (616) is formed in the top of the fixed plate (610), two ends of the movable groove (616) are communicated with the sliding groove (612), a pull rod (615) is embedded in the movable groove (616), and two ends of the bottom of the pull rod (615) are connected with the top of the fixed head (613);
the moisture proof assembly (7) comprises a water suction pipe (701);
the two sides of the support frame (601) are welded at one end of the water suction pipe (701), water suction holes (702) are uniformly formed in the outer surface of the water suction pipe (701), plugs (703) are rotatably arranged at the other end of the water suction pipe (701), water suction sponges (704) are clamped between every two adjacent water suction pipes (701) on the support frame (601), embedding holes (705) are formed in two ends of each water suction sponge (704), and the water suction pipes (701) are embedded in the embedding holes (705);
a cooling component (5) is arranged on the outer side of the outer shielding layer (4), and the cooling component (5) comprises a heat conducting rod (501);
the utility model discloses a heat-conducting strip, including support frame (506), heat-conducting rod (501), support frame (601), heat-conducting rod (501), fixed screw thread (502) are evenly offered in the support frame (601) center and run through inside elastic rubber (602), screw thread cover (503) are installed in rotation in fixed screw thread (502) outside, screw thread cover (503) outside welding has roating seat (504), roating seat (504) inside rotation installs loop bar (505), loop bar (505) outside slide and install sleeve (506), be connected with extension spring (507) between loop bar (505) and sleeve (506), sleeve (506) top welding has supporting plate (508), inside loop bar (505) and sleeve (506) run through installing port (603), connecting plate (509) are installed to support frame (601) inboard, heat-conducting plate (510) outside welding has flame retardant coating (8), flame retardant coating (8) have sheath (9), be connected with extension spring (507) between loop bar (505) and sleeve (506), heat-conducting strip (511) are embedded into in the heat-conducting strip.
2. A tree medium voltage crosslinked flame retardant power cable according to claim 1, characterized in that said elastic rubber (602) is located between every two adjacent support frames (601).
3. The medium voltage cross-linked flame-retardant power cable for the power tree according to claim 1, wherein the conductors (1), the inner shielding layer (2), the insulating layer (3) and the outer shielding layer (4) are sequentially and tightly attached to each other, and the longitudinal section of the support frame (601) is in the shape of an equilateral triangle.
4. The medium voltage cross-linked flame-retardant power cable for the electric tree according to claim 2, wherein the inner side of the elastic rubber (602) is tightly attached to the outer side of the outer shielding layer (4), and the longitudinal section of the elastic rubber (602) is in the shape of an equilateral triangle;
fixing holes are formed in two sides of the inside of the clamping groove (607), and the cross section of each fixing lug (609) is L-shaped.
5. The medium voltage cross-linked flame-retardant power cable for the power tree according to claim 2, wherein the inner wall of the sliding groove (612) is tightly attached to the outer surface of the fixed head (613), and the contact surfaces between the sliding groove (612) and the fixed head (613) are smooth surfaces.
6. The medium voltage cross-linked flame retardant power cable for an electrical tree according to claim 2, wherein the cross-sectional shape of the spring piece (608) is wavy, and the outer side of the elastic rubber (602) is attached to the inner side of the spring piece (608).
7. The medium voltage cross-linked flame-retardant power cable for the electric tree according to claim 1, wherein the outer side of the heat conducting rod (501) is tightly attached to one end of the heat conducting sheet (510), and heat conducting silicone grease is smeared between the connecting plate (509) and the supporting frame (601).
8. The medium voltage cross-linked flame-retardant power cable for the power tree according to claim 1, wherein the outer wall of the loop bar (505) and the inner wall of the sleeve (506) are smooth curved surfaces, and the outer wall of the loop bar (505) is tightly attached to the inner wall of the sleeve (506).
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| CN202310250464.7A CN115985566B (en) | 2023-03-16 | 2023-03-16 | Medium-voltage cross-linked flame-retardant power cable for anti-electricity tree |
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| CN202310250464.7A CN115985566B (en) | 2023-03-16 | 2023-03-16 | Medium-voltage cross-linked flame-retardant power cable for anti-electricity tree |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000245047A (en) * | 1999-02-22 | 2000-09-08 | Yazaki Corp | Terminal treatment part of insulated power cable |
| WO2021243858A1 (en) * | 2020-06-01 | 2021-12-09 | 江苏恒辉电气有限公司 | Crosslinked polyethylene insulated halogen-free low-smoke flame-retardant special control cable |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208157115U (en) * | 2018-03-30 | 2018-11-27 | 扬州曙光电缆股份有限公司 | A kind of power cable for nuclear power plant |
| CN208140229U (en) * | 2018-08-29 | 2018-11-23 | 江苏省埃迪机电设备实业有限公司 | A kind of full-automatic sensing bellows |
| CN209803422U (en) * | 2019-04-19 | 2019-12-17 | 安徽长荣光纤光缆科技有限公司 | Underground optical cable with high pressure resistance |
| CN213400681U (en) * | 2020-11-17 | 2021-06-08 | 郑州宝诺电子科技有限公司 | Low-smoke halogen-free flame-retardant cable |
| CN217214271U (en) * | 2022-03-31 | 2022-08-16 | 武汉宝上电缆有限公司 | Aluminum alloy conductor crosslinked polyethylene insulation interlocking armored low-voltage power cable |
| CN218092338U (en) * | 2022-07-07 | 2022-12-20 | 湖北钢鼎高新建材有限公司 | Concrete pole layering protector |
| CN218274044U (en) * | 2022-07-26 | 2023-01-10 | 金堡利升科技(深圳)有限公司 | High flame-retardant insulated wire and cable |
| CN115662693A (en) * | 2022-09-08 | 2023-01-31 | 况永江 | Stretch-proofing type communication cable |
-
2023
- 2023-03-16 CN CN202310250464.7A patent/CN115985566B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000245047A (en) * | 1999-02-22 | 2000-09-08 | Yazaki Corp | Terminal treatment part of insulated power cable |
| WO2021243858A1 (en) * | 2020-06-01 | 2021-12-09 | 江苏恒辉电气有限公司 | Crosslinked polyethylene insulated halogen-free low-smoke flame-retardant special control cable |
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