CN115762886A - Waterproof low-voltage power cable and preparation method thereof - Google Patents

Waterproof low-voltage power cable and preparation method thereof Download PDF

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Publication number
CN115762886A
CN115762886A CN202211601618.4A CN202211601618A CN115762886A CN 115762886 A CN115762886 A CN 115762886A CN 202211601618 A CN202211601618 A CN 202211601618A CN 115762886 A CN115762886 A CN 115762886A
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China
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waterproof
wall
cable
sleeve
voltage power
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CN202211601618.4A
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CN115762886B (en
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李松
王凯
吕利轩
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Kunming Kunming Railway Cable Co ltd
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Shandong Yuesen Intelligent Technology Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Abstract

The invention discloses a waterproof low-voltage power cable and a preparation method thereof, and the waterproof low-voltage power cable comprises a protective sleeve, a waterproof sleeve, a steel strip and a conductor, wherein a plurality of heat insulation mechanisms are arranged between the protective sleeve and the waterproof sleeve, the waterproof sleeve is fixedly connected with the steel strip, the conductor is positioned inside the steel strip, heat insulation cotton is filled between the protective sleeve and the waterproof sleeve, each heat insulation mechanism comprises two fixing plates, two cushion pads and a heat insulation pad, the heat insulation pad is positioned between the two cushion pads, the outer walls of the two sides of the heat insulation pad are respectively glued with the two cushion pads, one fixing plate is glued with the protective sleeve, and the other fixing plate is glued with the waterproof sleeve. The cable heat insulation device can cool hot air, so that the heat insulation effect of the heat insulation mechanism is improved, the interior of the cable is protected conveniently, and the phenomenon that the interior of the cable is softened due to high temperature because heat is transferred to the interior of the cable, and the interior of the cable is damaged is prevented.

Description

Waterproof low-voltage power cable and preparation method thereof
Technical Field
The invention relates to the field of power cables, in particular to a waterproof low-voltage power cable and a preparation method thereof.
Background
The cable has various types, including a high-voltage cable and a low-voltage cable, the high-voltage cable has a complex interior and is respectively provided with a conductor, an inner semiconductor layer, an insulating layer, an outer semiconductor layer, a metal armor and a sheath layer from inside to outside; the low-voltage cable is relatively simple and is respectively a conductor-insulating layer-steel belt-sheath from inside to outside, and actually, the main difference between the low-voltage cable and the low-voltage cable is that the high-voltage cable has more semiconductor layers and shielding layers than the low-voltage cable, so that the high-voltage cable is much thicker than the low-voltage cable in insulating layer, the structure is more complex, the same process requirement is higher, and the waterproof low-voltage power cable has a waterproof function.
Waterproof low voltage power cable is when using, because the length of cable is longer, consequently, need drag the processing to the cable when laying the cable, at this moment, the surface of cable can and take place the friction between the ground to make the surface production of cable heat, and because the inside of thermal conduction messenger cable surface's heat transfer to cable, thereby lead to the inside of cable to take place to soften because the temperature is higher, thereby cause the damage to the inside of cable.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme:
waterproof low pressure power cable, including lag, waterproof cover, steel band and conductor, be provided with a plurality of heat-proof mechanism between lag and the waterproof cover, fixed connection between waterproof cover and the steel band, the conductor is located the inside of steel band, it has thermal-insulated cotton to fill between lag and the waterproof cover, heat-proof mechanism includes two fixed plates, two blotters and heat insulating mattress, and the heat insulating mattress is located between two blotters, the both sides outer wall of heat insulating mattress splice between two blotters respectively, one of them bond between fixed plate and the lag, another bond between fixed plate and the waterproof cover, two bond between fixed plate respectively and two blotters, the cross section of heat insulating mattress is the waist drum form, and the both sides outer wall of heat insulating mattress is provided with a plurality of continuous bellyings, the water cavity has been seted up to the inside of heat insulating mattress.
Preferably, the outer wall of the conductor is fixedly sleeved with an insulating sleeve, the outer wall of the insulating sleeve is provided with a plurality of grooves, the inner wall of the steel belt is bonded with a plurality of limiting pads, the outer wall of each limiting pad is provided with a plurality of convex teeth, and the convex teeth are meshed with the grooves.
Preferably, two a plurality of notches have all been seted up to the outer wall of blotter, and the inner wall of notch has first spring through bolted connection, and the blotter is flexible material.
Preferably, the inside in water cavity is provided with rabbling mechanism, and rabbling mechanism includes connecting band and a plurality of swing mechanism, fixed connection between connecting band and the water cavity, and a plurality of swing mechanism equidistance are fixed on the upper and lower both sides outer wall of connecting band, and the connecting band is the elasticity material, and crisscross distribution between two upper and lower swing mechanism.
Preferably, the swing mechanism is composed of two swing plates and two second springs, the two swing plates are connected with the connecting band through hinges, the two swing plates are distributed in a V shape, and two ends of the second springs are respectively fixedly connected with the swing plates and the connecting band.
Preferably, a balloon is bonded between the two swing plates and is made of hollow elastic materials, and a plurality of nozzles are formed in the outer wall of the balloon.
Preferably, the outer wall of lag is provided with protection machanism, and protection machanism comprises a plurality of protective rings, and a plurality of protective rings equidistance distribute on the outer wall of lag, and a plurality of ring channels have been seted up to the outer wall of lag, sliding connection between ring channel and the protective ring, and a plurality of ball grooves have been seted up to the outer wall of protective ring, and the inner wall roll connection in ball groove has the ball, roll connection between ball and the ring channel.
Preferably, the limiting grooves are formed in the inner walls of the two sides of the annular groove, the inner walls of the two limiting grooves are connected with limiting rings in a sliding mode, and the limiting rings are fixedly connected with the protection rings.
Preferably, a plurality of cavities are formed in the outer wall of the protection ring, the inner wall of each cavity is connected with a protection pad in a sliding mode, a third spring is arranged between each protection pad and each cavity, and a through hole is formed between every two adjacent cavities.
The preparation method of the waterproof low-voltage power cable comprises the following specific steps:
s1: drawing the copper or aluminum into a single wire: at normal temperature, a wire drawing machine is used for enabling copper or aluminum to pass through a plurality of die holes of a drawing die, so that the section of the drawing die is reduced and the length of the drawing die is increased;
s2: annealing the monofilaments: the monofilament is heated to a certain temperature, and the toughness of the monofilament is improved and the strength of the monofilament is reduced in a recrystallization mode;
s3: twisting the conductor: combining a plurality of monofilaments, and twisting the monofilaments through equipment;
s4: preparing an insulating sleeve: melting the insulating material by injection molding, and extruding the insulating material by an extruder;
s5: and fixedly sleeving the molded insulating sleeve on the outer wall of the conductor in a sleeving manner, so as to coat the conductor.
S6: and extruding and forming the waterproof sleeve and the protective sleeve in the same way, fixing the formed waterproof sleeve on the outer wall of the insulating sleeve, fixing the protective sleeve, and finishing the cable preparation after the fixing is finished.
The invention has the beneficial effects that:
1. according to the cable, due to the arranged heat insulation mechanism, when the cable is dragged, the surface of the cable generates heat due to the friction of the ground, at the moment, the heat on the surface of the cable is conducted to the inside of the cable, so that the inside of the cable is softened due to high temperature, and the inside of the cable is damaged;
2. according to the rapid heating device, due to the arrangement of the stirring mechanism and the swinging mechanism, when hot air is transmitted to the inside of the water cavity, the hot air can be cooled through water, and the cable can swing when being dragged, so that the water in the water cavity can fluctuate along with the fluctuation of the cable, at the moment, when the fluctuating water collides with the stirring mechanism, the connecting belt can drive the swinging mechanism to swing back and forth under the action of water waves, when the swinging mechanism swings upwards, the two swinging plates can expand towards two sides under the action of water pressure, at the moment, the water can fluctuate towards two sides under the action of the swinging plates, and when the swinging mechanism swings downwards, the two swinging plates can be folded, the swinging plates can extrude the balloon when being folded, at the moment, the water in the balloon can be ejected through the nozzle, so that the fluctuation effect of the water is improved, the cooling effect of the water on the hot air is achieved, and the heat insulation effect of the heat insulation mechanism on the hot air is further improved;
3. according to the cable protection device, due to the arrangement of the protection mechanism, when the cable is dragged, friction between the cable and the ground can be reduced through the protection ring and the annular groove, so that the surface of the cable is protected and treated conveniently, the surface of the cable is prevented from being abraded due to friction, in addition, the cross section of the cable is circular, the cable is easy to roll when placed on the ground, so that the surface of the cable can be abraded, the cable can be prevented from rolling through matching of the protection pads, when the cable is placed on the ground, the protection pad at the bottom of the cable can shrink into the cavity due to the gravity of the cable, at the moment, the space in the cavity can be compressed, gas in the cavity can be conveyed into other cavities through the through hole, at the moment, other protection pads can extend out of the cavity due to the input of the gas, the extending lengths of the protection pads are different, so that the surface of the cable can be rough and uneven through matching of the protection pads, the cable can be increased in friction force with the ground, and the surface of the cable can be prevented from being abraded due to the rolling of the cable.
Drawings
Fig. 1 is a schematic structural view of a waterproof low-voltage power cable according to the present invention;
fig. 2 is a schematic cross-sectional view of a waterproof low-voltage power cable according to the present invention;
fig. 3 is a schematic structural view of a position a of the waterproof low-voltage power cable according to the present invention;
fig. 4 is a schematic structural view of a protective sleeve of a waterproof low-voltage power cable according to the present invention;
FIG. 5 is a schematic structural view of a heat insulation mechanism of the waterproof low-voltage power cable according to the present invention;
FIG. 6 is a schematic cross-sectional view of the heat insulation mechanism of the waterproof low-voltage power cable according to the present invention;
fig. 7 is a schematic structural view of a stirring mechanism of the waterproof low-voltage power cable provided by the invention;
fig. 8 is a schematic structural view of a swing mechanism of the waterproof low-voltage power cable according to the present invention.
In the drawings: 1-a steel belt; 2-waterproof jacket; 3-heat insulation cotton; 4-a heat insulation mechanism; 5-protecting jacket; 6-a protection mechanism; 7-a limiting pad; 8-a ball bearing; 9-a protective pad; 10-a cavity; 11-a through hole; 12-a guard ring; 13-a conductor; 14-an insulating sleeve; 15-convex teeth; 16-a groove; 17-an annular groove; 18-a limiting groove; 19-fixing the plate; 20-a heat insulation mat; 21-a cushion pad; 22-notches; 23-a first spring; 24-a water cavity; 25-a stirring mechanism; 26-a swing mechanism; 27-a connecting band; 28-a swing plate; 29-a balloon; 30-a nozzle; 31-second spring.
Detailed Description
Example 1
Referring to fig. 1-7, the waterproof low-voltage power cable comprises a protective sleeve 5, a waterproof sleeve 2, a steel strip 1 and a conductor 13, wherein a plurality of heat insulation mechanisms 4 are arranged between the protective sleeve 5 and the waterproof sleeve 2, the waterproof sleeve 2 is fixedly connected with the steel strip 1, the conductor 13 is arranged inside the steel strip 1, heat insulation cotton 3 is filled between the protective sleeve 5 and the waterproof sleeve 2, each heat insulation mechanism 4 comprises two fixing plates 19, two buffer pads 21 and a heat insulation pad 20, the heat insulation pad 20 is arranged between the two buffer pads 21, the outer walls of the two sides of the heat insulation pad 20 are respectively glued with the two buffer pads 21, one fixing plate 19 is glued with the protective sleeve 5, the other fixing plate 19 is glued with the waterproof sleeve 2, the two fixing plates 19 are respectively glued with the two buffer pads 21, the cross section of the heat insulation pad 20 is in a waist drum shape, the outer walls of the two sides of the heat insulation pad 20 are provided with a plurality of continuous protruding portions, a water cavity 24 is arranged inside the heat insulation pad 20, when the cable is dragged, the surface of the cable generates heat due to the friction of the ground, at this time, the heat on the surface of the cable is conducted to the inside of the cable, so that the inside of the cable is softened due to high temperature, thereby damaging the inside of the cable, the cable can be subjected to cooling and heat insulation treatment through the heat insulation mechanism 4, when the heat is transmitted to the outer wall of the heat insulation mechanism 4 through the skin of the cable, because the cross section of the heat insulation pad 20 is waist drum-shaped, the two sides of the heat insulation pad 20 are small in size and the middle is large in size, in addition, the two sides of the heat insulation pad 20 are provided with a plurality of continuous protruding parts, therefore, the transmission path of the hot air is enlarged, and the hot air can consume energy during transmission, therefore, along with the enlargement of the transmission path, at this time, the heat of the hot air can be consumed, thereby achieving the effect of cooling, in addition, because the inside of heat insulating mattress 20 is equipped with water cavity 24, consequently, can cool down the outer wall of heat insulating mattress 20 through the inside hydroenergy in water cavity 24 and handle, consequently, when the inside of steam transmission to water cavity 24 contacted with water, at this moment, can cool down the processing to steam through hydroenergy, thereby improve heat-proof mechanism 4's thermal-insulated effect, so as to protect the inside of cable, prevent to lead to the inside of cable because the heat transmission is higher and take place to soften because of the temperature, thereby cause the damage to the inside of cable.
According to the invention, the outer wall of the conductor 13 is fixedly sleeved with the insulating sleeve 14, the outer wall of the insulating sleeve 14 is provided with a plurality of grooves 16, the inner wall of the steel belt 1 is bonded with a plurality of limiting pads 7, the outer wall of each limiting pad 7 is provided with a plurality of convex teeth 15, and the convex teeth 15 are meshed with the grooves 16.
In the invention, a plurality of notches 22 are formed in the outer walls of the two buffer cushions 21, the inner walls of the notches 22 are connected with first springs 23 through bolts, and the buffer cushions 21 are made of flexible materials.
Example 2
Referring to fig. 1-8, compared with embodiment 1, in the waterproof low-voltage power cable according to embodiment 1, on the basis of embodiment 1, a stirring mechanism 25 is disposed inside the water cavity 24, and the stirring mechanism 25 includes a connecting band 27 and a plurality of swing mechanisms 26, the connecting band 27 is fixedly connected to the water cavity 24, the plurality of swing mechanisms 26 are fixed to outer walls of upper and lower sides of the connecting band 27 at equal intervals, the connecting band 27 is made of an elastic material, and the upper and lower swing mechanisms 26 are distributed in a staggered manner.
In the invention, the swing mechanism 26 is composed of two swing plates 28 and two second springs 31, the two swing plates 28 are connected with the connecting belt 27 through hinges, the two swing plates 28 are distributed in a V shape, and two ends of the second springs 31 are respectively fixedly connected with the swing plates 28 and the connecting belt 27.
According to the invention, the balloon 29 is bonded between the two swinging plates 28, the balloon 29 is made of hollow elastic material, the outer wall of the balloon 29 is provided with the plurality of nozzles 30, when hot air is transmitted to the inside of the water cavity 24, the hot air can be cooled through water, and the cable can swing when being dragged, so that the water inside the water cavity 24 can fluctuate along with the fluctuation of the cable, at the moment, when the fluctuating water collides with the stirring mechanism 25, the connecting belt 27 can drive the swinging mechanism 26 to reciprocate under the action of water waves, when the swinging mechanism 26 swings upwards, the two swinging plates 28 can expand towards two sides under the action of water pressure, at the moment, the water can fluctuate towards two sides under the action of the swinging plates 28, and when the swinging mechanism 26 swings downwards, the two swinging plates 28 can be folded, and when the swinging plates 28 are folded, the balloon 29 can be extruded and extruded when the swinging mechanism is folded, at the moment, the water inside the balloon 29 can fluctuate through the nozzles 30, so that the high water effect of cooling the hot air through the water is improved, and the effect of cooling the hot air can be further improved, and the heat insulation effect of the fluctuation of the heat insulation mechanism is further improved.
Example 3
Referring to fig. 1-4, waterproof low voltage power cable, compare with embodiment 1, on embodiment 1's basis, the outer wall of lag 5 is provided with protection machanism 6, and protection machanism 6 comprises a plurality of protective rings 12, a plurality of protective rings 12 equidistance distribute on lag 5's outer wall, a plurality of ring channels 17 have been seted up to lag 5's outer wall, sliding connection between ring channel 17 and the protective ring 12, a plurality of ball grooves have been seted up to protective ring 12's outer wall, ball groove's inner wall roll connection has ball 8, roll connection between ball 8 and the ring channel 17.
In the invention, the inner walls of the two sides of the annular groove 17 are both provided with a limiting groove 18, the inner walls of the two limiting grooves 18 are both connected with a limiting ring in a sliding manner, and the limiting rings are fixedly connected with the protective ring 12.
According to the invention, the outer wall of the protective ring 12 is provided with a plurality of cavities 10, the inner wall of each cavity 10 is connected with the protective pad 9 in a sliding manner, a third spring is arranged between each protective pad 9 and each cavity 10, a through hole 11 is formed between every two adjacent cavities 10, when a cable is dragged, friction between the cable and the ground can be reduced through the protective ring 12 and the annular groove 17, so that the surface of the cable can be protected and treated conveniently, and the surface of the cable is prevented from being abraded due to the friction, in addition, the cross section of the cable is circular, so that the cable is easy to roll when being placed on the ground, the surface of the cable can be abraded due to the abrasion, the cable can be prevented from rolling due to the cooperation of the plurality of protective pads 9, when the cable is placed on the ground, the protective pad 9 at the bottom of the cable can be contracted into the cavities 10 due to the gravity of the cable, at the moment, the space inside the cavities 10 can be compressed, the gas inside the cavities 10 can be conveyed to the rest of the cavities 10 through the through holes 11, at the rest of the protective pads 9 can extend out of the inside of the cavities 10 due to the input of the gas, so that the difference of the cable, the surface of the protective pads, the cable can be prevented from being abraded due to the rough matching of the rough surface of the cable, and the abrasion, and the surface of the cable can be prevented from being increased.
The preparation method of the waterproof low-voltage power cable comprises the following specific steps:
s1: drawing copper or aluminum into single wire: at normal temperature, a wire drawing machine is used for enabling copper or aluminum to pass through a plurality of die holes of a drawing die, so that the section of the drawing die is reduced and the length of the drawing die is increased;
s2: annealing the monofilaments: the monofilament is heated to a certain temperature, and the toughness of the monofilament is improved and the strength of the monofilament is reduced in a recrystallization mode;
s3: twisting the conductor: combining a plurality of monofilaments, and twisting the monofilaments through equipment;
s4: preparing an insulating sleeve: melting the insulating material by injection molding, and extruding the insulating material by an extruder;
s5: and fixedly sleeving the molded insulating sleeve on the outer wall of the conductor in a sleeving manner, so as to coat the conductor.
S6: and extruding and forming the waterproof sleeve and the protective sleeve in the same way, fixing the formed waterproof sleeve on the outer wall of the insulating sleeve, fixing the protective sleeve, and finishing the cable preparation after the fixing is finished.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. Waterproof low pressure power cable, including lag (5), waterproof cover (2), steel band (1) and conductor (13), be provided with a plurality of heat-proof machanism (4) between lag (5) and waterproof cover (2), fixed connection between waterproof cover (2) and steel band (1), conductor (13) are located the inside of steel band (1), its characterized in that, it has thermal-insulated cotton (3) to fill between lag (5) and waterproof cover (2), heat-proof machanism (4) include two fixed plates (19), two blotters (21) and heat insulating mattress (20), and heat insulating mattress (20) are located between two blotters (21), the both sides outer wall of heat insulating mattress (20) splices between two blotters (21) respectively, one of them bond between fixed plate (19) and lag (5), another bond between fixed plate (19) and waterproof cover (2), two fixed plate (19) bond between two blotters (21) respectively, the cross section of heat insulating mattress (20) is the drum form, and the outer wall of heat insulating mattress (20) is provided with a plurality of protruding both sides in succession the heat insulating mattress (20) the inside water cavity has been seted up.
2. The waterproof low-voltage power cable according to claim 1, wherein an insulating sleeve (14) is fixedly sleeved on the outer wall of the conductor (13), a plurality of grooves (16) are formed in the outer wall of the insulating sleeve (14), a plurality of limiting pads (7) are bonded on the inner wall of the steel belt (1), a plurality of convex teeth (15) are arranged on the outer wall of each limiting pad (7), and the convex teeth (15) are meshed with the grooves (16).
3. The waterproof low-voltage power cable according to claim 1, wherein the outer walls of the two buffering pads (21) are provided with a plurality of notches (22), the inner walls of the notches (22) are connected with a first spring (23) through bolts, and the buffering pads (21) are made of flexible materials.
4. The waterproof low-voltage power cable according to claim 1, wherein a stirring mechanism (25) is disposed inside the water cavity (24), the stirring mechanism (25) comprises a connecting belt (27) and a plurality of swinging mechanisms (26), the connecting belt (27) is fixedly connected with the water cavity (24), the swinging mechanisms (26) are fixed on outer walls of upper and lower sides of the connecting belt (27) at equal intervals, the connecting belt (27) is made of an elastic material, and the upper and lower swinging mechanisms (26) are distributed in a staggered manner.
5. The waterproof low-voltage power cable according to claim 4, wherein the swing mechanism (26) comprises two swing plates (28) and two second springs (31), the two swing plates (28) are connected with the connecting band (27) through hinges, the two swing plates (28) are distributed in a V shape, and two ends of each second spring (31) are fixedly connected with the swing plates (28) and the connecting band (27).
6. The waterproof low-voltage power cable according to claim 5, wherein a balloon (29) is bonded between the two swinging plates (28), the balloon (29) is made of hollow elastic material, and a plurality of nozzles (30) are formed in the outer wall of the balloon (29).
7. The waterproof low-voltage power cable according to claim 1, wherein the protective sleeve (5) is provided with a protective mechanism (6) on the outer wall thereof, the protective mechanism (6) is composed of a plurality of protective rings (12), the plurality of protective rings (12) are equidistantly distributed on the outer wall of the protective sleeve (5), the outer wall of the protective sleeve (5) is provided with a plurality of annular grooves (17), the annular grooves (17) are slidably connected with the protective rings (12), the outer wall of the protective rings (12) is provided with a plurality of ball grooves, the inner walls of the ball grooves are connected with the balls (8) in a rolling manner, and the balls (8) are connected with the annular grooves (17) in a rolling manner.
8. The waterproof low-voltage power cable according to claim 7, wherein the annular groove (17) is provided with a limiting groove (18) on both inner walls thereof, and the two limiting grooves (18) are slidably connected with limiting rings on the inner walls thereof, and the limiting rings are fixedly connected with the guard ring (12).
9. The waterproof low-voltage power cable according to claim 7, wherein a plurality of cavities (10) are formed in the outer wall of the protective ring (12), a protective pad (9) is slidably connected to the inner wall of each cavity (10), a third spring is arranged between each protective pad (9) and each cavity (10), and a through hole (11) is formed between every two adjacent cavities (10).
10. A method for preparing a waterproof low-voltage power cable, characterized in that the method for preparing a waterproof low-voltage power cable according to any one of claims 1 to 9 comprises the following steps:
s1: drawing the copper or aluminum into a single wire: at normal temperature, a wire drawing machine is used for enabling copper or aluminum to pass through a plurality of die holes of a drawing die, so that the section of the drawing die is reduced and the length of the drawing die is increased;
s2: annealing the monofilament: the monofilament is heated to a certain temperature, and the toughness of the monofilament is improved and the strength of the monofilament is reduced in a recrystallization mode;
s3: twisting the conductor: combining a plurality of monofilaments, and twisting the monofilaments through equipment;
s4: preparing an insulating sleeve: melting the insulating material by injection molding, and extruding the insulating material by an extruder;
s5: and fixedly sleeving the molded insulating sleeve on the outer wall of the conductor in a sleeving manner, so as to coat the conductor.
S6: and extruding and forming the waterproof sleeve and the protective sleeve in the same way, fixing the formed waterproof sleeve on the outer wall of the insulating sleeve, fixing the protective sleeve, and finishing the cable preparation after the fixing is finished.
CN202211601618.4A 2022-12-13 2022-12-13 Waterproof low-voltage power cable and preparation method thereof Active CN115762886B (en)

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CN212303161U (en) * 2020-06-09 2021-01-05 南洋电缆集团泰州有限公司 Fireproof cable with cooling structure
CN113903510A (en) * 2021-09-02 2022-01-07 卜艳萍 Double-shielded data transmission cable
CN215954873U (en) * 2021-08-13 2022-03-04 郑州特种电缆有限公司 Wear-resisting type special cable
CN114334268A (en) * 2022-01-13 2022-04-12 深圳市真实力电缆有限公司 Novel dampproofing power cable blocks water
CN114550987A (en) * 2022-02-25 2022-05-27 安徽渡江电缆集团有限公司 Prevent that molten steel scald warp-resistant high temperature reel is with removing flexible cable

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09306246A (en) * 1996-03-12 1997-11-28 Yazaki Corp Method and device for waterproofing wire bundle
DE19740912C1 (en) * 1997-09-17 1999-04-01 Karlsruhe Forschzent Flexible, fluid-cooled cable piece for high electric current
CN208385072U (en) * 2018-06-07 2019-01-15 扬州市金阳光电缆有限公司 A kind of preferable power cable of hardy type shielding
CN209168806U (en) * 2018-08-08 2019-07-26 佛山市南海通达特种线缆制造有限公司 A kind of resistance to compression power communication cable
CN210743635U (en) * 2019-12-05 2020-06-12 安徽徽宁电器仪表集团有限公司 Environment-friendly flame-retardant control cable
CN212303161U (en) * 2020-06-09 2021-01-05 南洋电缆集团泰州有限公司 Fireproof cable with cooling structure
CN215954873U (en) * 2021-08-13 2022-03-04 郑州特种电缆有限公司 Wear-resisting type special cable
CN113903510A (en) * 2021-09-02 2022-01-07 卜艳萍 Double-shielded data transmission cable
CN114334268A (en) * 2022-01-13 2022-04-12 深圳市真实力电缆有限公司 Novel dampproofing power cable blocks water
CN114550987A (en) * 2022-02-25 2022-05-27 安徽渡江电缆集团有限公司 Prevent that molten steel scald warp-resistant high temperature reel is with removing flexible cable

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