CN214956051U - Photovoltaic cable with compressed D-shaped aluminum alloy conductor - Google Patents
Photovoltaic cable with compressed D-shaped aluminum alloy conductor Download PDFInfo
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- CN214956051U CN214956051U CN202121323112.2U CN202121323112U CN214956051U CN 214956051 U CN214956051 U CN 214956051U CN 202121323112 U CN202121323112 U CN 202121323112U CN 214956051 U CN214956051 U CN 214956051U
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Abstract
The utility model discloses a compressed D-shaped aluminum alloy conductor photovoltaic cable, which belongs to the field of wire and cable manufacturing and comprises an aluminum alloy conductor, an insulating layer, an inner liner layer, a double-steel-strip armor layer and an outer sheath; the cross-section of aluminum alloy conductor is compact real "D" shape, aluminum alloy conductor is equipped with two, and two aluminum alloy conductor's vertical part sets up in opposite directions, and every aluminum alloy conductor outside has all wrapped up the insulating layer, the cross-section of insulating layer is hollow "D" shape, two insulating layer outsides are located to the inner liner cover simultaneously, the inner liner outside is located to the oversheath cover, and the double steel strip armor layer is located between inner liner and the oversheath. The utility model discloses compare in circular conductor cable, when guaranteeing electric performance, can realize the undergauge, subtract heavy and fall originally, possess better economic popularization benefit.
Description
Technical Field
The utility model relates to a wire and cable makes the field, specificly relates to a sticis D shape aluminum alloy conductor photovoltaic cable.
Background
In the face of gradual depletion of non-renewable energy sources, global energy crisis is increasingly serious, in recent years, China increases investment subsidies for photovoltaic industries, various photovoltaic power stations are rapidly built, and meanwhile, the photovoltaic cable industry matched with the photovoltaic power stations also rapidly rises. However, although photovoltaic power generation is set as a future development trend, it still suffers from high investment cost, long effective period, and the like. Many performances of the aluminum alloy cable are greatly improved nowadays, and even some performances are better than those of the copper core cable. With the gradual development of the domestic aluminum alloy cable technology, the replacement of the copper core cable is realized in most fields, such as civil buildings, public facilities, aerospace and the like, so that if the aluminum alloy cable can be applied to the photovoltaic industry, the investment cost of photovoltaic power generation is certainly greatly reduced, and huge economic benefits are brought to the photovoltaic power generation industry. However, at present, the existing aluminum alloy photovoltaic cable has large outer diameter, large weight and high cost.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
The to-be-solved technical problem of the utility model is to provide a realize realizing reducing the diameter, subtract heavy, fall this sticising "D" shape aluminum alloy conductor photovoltaic cable to solve the problem among the prior art.
2. Technical scheme
In order to solve the above problem, the utility model adopts the following technical scheme:
a compressed D-shaped aluminum alloy conductor photovoltaic cable comprises an aluminum alloy conductor, an insulating layer, an inner lining layer and an outer sheath; the cross-section of aluminum alloy conductor is compact real "D" shape, aluminum alloy conductor is equipped with two, and two aluminum alloy conductor's vertical part sets up in opposite directions, and every aluminum alloy conductor outside has all wrapped up the insulating layer, the cross-section of insulating layer is hollow "D" shape, two insulating layer outsides are located to the inner liner cover simultaneously, the inner liner outside is located to the outer oversheath cover.
Further, the insulating layer includes a first insulator and a first insulating heat conductor, the first insulator is located in an arc portion corresponding to the cross section of the insulating layer, and the first insulating heat conductor is located in a vertical portion corresponding to the cross section of the insulating layer. The first insulator is made of an electrical insulating material, so that electric energy can be prevented from being dissipated; the first insulation heat conductor is made of heat-conducting and non-conducting materials (such as silicone grease and high-heat-conducting silica gel), heat conduction can be promoted while the electric insulation effect is exerted, the whole peripheral sides of the two insulation layers have an electric insulation effect, the part between the two insulation layers can conduct heat to the upper side and the lower side quickly, namely heat energy generated by the aluminum alloy conductor can be transferred to the peripheral sides of the cable core quickly, and the heat dissipation of the cable is facilitated.
As another embodiment of the above aspect, the insulating layer includes a second insulator and a second insulating heat conductor intermittently and alternately distributed along the insulating layer "D" shaped cross-section peripheral side. The second insulator is made of an electrical insulating material, so that electric energy can be prevented from being dissipated; the second insulating heat conductor is made of heat-conducting and non-conducting materials (such as silicone grease and high-heat-conducting silica gel), heat conduction can be promoted while the electric insulation effect is exerted, so that the whole peripheral sides of the two insulating layers have an electric insulation effect, heat energy generated by the aluminum alloy conductor can be quickly transmitted to the peripheral sides of the cable core by the peripheral sides of the two insulating layers, and the heat dissipation of the cable is facilitated.
Furthermore, a gap is reserved between the vertical parts of the two insulating layers, a compression-resistant heat conductor with an oval-shaped ring body in cross section is arranged in the gap, and the two corresponding opposite sides of the compression-resistant heat conductor are respectively in contact with the insulating layers on the corresponding sides. The pressure-resistant heat conductor is made of heat-conducting and non-conducting materials, can promote heat conduction while playing an electric insulation role, namely can further promote the part between the two insulation layers to conduct heat to the upper side and the lower side relatively quickly. In addition, when the cable received the pressure of upper and lower direction, the upper and lower end of resistance to compression heat conductor was close to each other by the extrusion, can make the left and right sides of resistance to compression heat conductor keep away from each other dorsad, can promote two aluminum alloy conductors that have the insulating layer and keep away from each other, prevents that aluminum alloy conductor is compressed, its ability performance resistance to compression promptly.
Further, the cross-section of inner liner is ring shape, two form the clearance chamber between the last downside of insulating layer and the inner liner, be equipped with in the clearance chamber with resistance to compression heat conductor fixed connection and the support bar of attached inner liner medial surface, the width of support bar is crescent to one side of attached inner liner by one side of connecting the resistance to compression heat conductor. When the cable receives the pressure of upper and lower direction, because the width of support bar resistance to compression heat conductor one side dorsad is great, then it can increase pressurized area, reduces pressure to be favorable to protecting the resistance to compression heat conductor, and can reduce the pressure of inboard transmission, thereby can further protect the aluminum alloy conductor.
Furthermore, the vertical part of the section of the insulating layer is provided with a strip-shaped through hole, the length direction of the strip-shaped through hole extends along the length direction of the cable, the two opposite sides corresponding to the pressure-resistant heat conductor are respectively fixed with a convex rib positioned in the strip-shaped through hole at the corresponding side, and the section of each convex rib is triangular. Through the joint adaptation of bar opening and protruding muscle, can be convenient for confirm two aluminum alloy conductors that have the insulating layer and the position of resistance to compression heat conductor to be connected two insulating layers and resistance to compression heat conductor, so that form the cable core.
Furthermore, the aluminum alloy conductor is formed by twisting a plurality of strands of fine and soft aluminum alloy wires, and the two aluminum alloy conductors are symmetrically arranged and twisted to form the cable core. And the D-shaped conductor is formed by a pressing die, so that the aluminum alloy conductor has the advantages of good conductivity, small outer diameter, light weight and the like.
Preferably, the inner liner and the outer sheath are both made of low-smoke halogen-free flame-retardant polyolefin materials subjected to irradiation crosslinking at the temperature. After irradiation crosslinking processing, the low-smoke halogen-free flame-retardant polyolefin material has the characteristics of low smoke, no halogen, flame retardance, acid and alkali resistance, salt water resistance, salt mist resistance, ultraviolet ray resistance, ozone aging resistance and the like, so that an aluminum alloy conductor can be better protected.
Further, a double-steel-belt armor layer is arranged between the inner liner layer and the outer sheath. The cable core can be protected by the double steel-belt armor layers, the direct-buried surface of the cable can be conveniently penetrated for use, and the cable penetrating pipe and the laying construction cost can be saved.
3. Advantageous effects
(1) The utility model discloses an aluminum alloy conductor adopts the thin soft aluminum alloy silk of stranded system to form, and makes "D" shape conductor through sticising the shaping, can reduce cable external diameter about 10%, reduces cable weight about 20%, and reduce cost about 50% to can reach the undergauge, subtract heavy, fall this purpose.
(2) The utility model has the advantages that the insulating layer is formed by the insulator and the insulating heat conductor, so that the electric insulation effect is achieved, and the heat conduction is promoted; and through the setting of resistance to compression heat conductor, can promote the heat that is difficult for the external heat dissipation to the outside conduction between two aluminum alloy conductors specially for two insulating layer week sides homoenergetic are very fast with the heat energy transmission of aluminum alloy conductor production to cable core week side, are favorable to the heat dissipation of cable.
(3) The utility model discloses a set up the resistance to compression heat conductor between two aluminum alloy conductors, and the cross-section of resistance to compression heat conductor is oval form ring body, and when the cable received the pressure of upper and lower direction, the upper and lower end of resistance to compression heat conductor was close to each other by the extrusion, can make the left and right sides of resistance to compression heat conductor keep away from dorsad, can promote two aluminum alloy conductors that have the insulating layer and keep away from each other, prevents that aluminum alloy conductor from compressing, and it can exert the resistance to compression promptly, promotes the resistance to compression protection to the conductor.
To sum up, the utility model discloses can realize the undergauge, subtract heavy, fall originally, and the cable has better heat dissipation and compressive property.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic cross-sectional view of the present invention in example 1;
fig. 2 is a schematic cross-sectional view of the present invention in example 2;
fig. 3 is a schematic cross-sectional view of the present invention in example 3.
Reference numerals: 1. an aluminum alloy conductor; 2. an insulating layer; 21. a first insulator; 22. a first insulating heat conductor; 23. a second insulator; 24. a second insulating heat conductor; 3. an inner liner layer; 4. a double steel tape armor layer; 5. an outer sheath; 6. a rib is protruded; 7. a compression-resistant heat conductor; 8. a supporting strip; 9. a clearance cavity; 10. a strip-shaped through opening.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the feature of the inlet "on" or "under" the second feature may comprise direct contact between the inlet and the second feature, or may comprise contact between the inlet and the second feature not directly but through another feature in between. Also, the terms "over," "above," and "above" the second feature include the inlet feature being directly above and obliquely above the second feature, or simply indicating that the inlet feature is at a higher level than the second feature. The terms "under", "below" and "beneath" of an inlet feature encompass the inlet feature being directly under and obliquely below the second feature, or simply meaning that the inlet feature is less level than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example 1
The photovoltaic cable with the compacted D-shaped aluminum alloy conductor shown in the figure 1 comprises an aluminum alloy conductor 1, an insulating layer 2, an inner lining layer 3, a double-steel-belt armor layer 4 and an outer sheath 5; the cross section of the aluminum alloy conductor 1 is in a compact D shape, the number of the aluminum alloy conductors 1 is two, the vertical parts of the two aluminum alloy conductors 1 are oppositely arranged, the outer side of each aluminum alloy conductor 1 is wrapped with an insulating layer 2, the cross section of each insulating layer 2 is in a hollow D shape, the inner liner 3 is simultaneously sleeved on the outer sides of the two insulating layers 2, the outer jacket 5 is sleeved on the outer side of the inner liner 3, the double-steel-strip armor layer 4 is arranged between the inner liner 3 and the outer jacket 5, the double-steel-strip armor layer 4 can play a role in compression resistance protection of a cable core, the direct-buried surface of the cable can be conveniently used for pipe penetration, and the laying construction cost of the cable can be saved;
the aluminum alloy conductor 1 is formed by twisting a plurality of strands of fine and soft aluminum alloy wires, and the two aluminum alloy conductors 1 are symmetrically arranged and twisted to form a cable core. The D-shaped conductor is formed by a pressing die, so that the aluminum alloy conductor 1 has the advantages of good conductivity, small outer diameter, light weight and the like, the outer diameter of the cable can be reduced by about 10%, the weight of the cable can be reduced by about 20%, and the cost can be reduced by about 50%;
the insulating layer 2, the lining layer 3 and the outer sheath 5 are all made of 125 ℃ irradiation crosslinking low-smoke halogen-free flame-retardant polyolefin materials. After irradiation crosslinking processing, the low-smoke halogen-free flame-retardant polyolefin material has the characteristics of low smoke, no halogen, flame retardance, acid and alkali resistance, salt water resistance, salt mist resistance, ultraviolet ray resistance, ozone aging resistance and the like, so that the aluminum alloy conductor 1 can be better protected.
The manufacturing process of the cable comprises the following steps: firstly, drawing an aluminum alloy monofilament on a wire drawing machine, and tightly pressing the aluminum alloy monofilament through annealing, bunching and a D-shaped die to obtain an aluminum alloy conductor 1; then, extruding and wrapping the 125 ℃ irradiation crosslinking low-smoke halogen-free flame-retardant polyolefin material outside the aluminum alloy conductor 1 to form an insulating layer 2; then, two aluminum alloy conductors 1 are symmetrically arranged and twisted to form a cable core, and a 125 ℃ irradiation crosslinking low-smoke halogen-free flame-retardant polyolefin material is extruded outside the cable core to form an inner liner layer 3; then, double layers of steel belts are wrapped to form a double steel belt armor layer 4; and finally, extruding and wrapping the low-smoke halogen-free flame-retardant polyolefin material subjected to irradiation crosslinking at 125 ℃ to form the outer sheath 5.
Example 2
The present embodiment is different from embodiment 1 in that:
in the present embodiment, as shown in fig. 2, the insulating layer 2 includes a first insulating body 21 and a first insulating heat conductor 22, the first insulating body 21 is located at an arc portion corresponding to the cross section of the insulating layer 2, and the first insulating heat conductor 22 is located at a vertical portion corresponding to the cross section of the insulating layer 2. The first insulator 21 is made of an electrical insulating material, so that electric energy can be prevented from being dissipated; first insulation heat conductor 22 adopts heat conduction non-conducting material (for example materials such as silicone grease, high heat conduction silica gel) to make, can promote heat conduction when playing the electric insulation effect for 2 whole week sides of two insulating layers all have the electric insulation effect, and the part between two insulating layers 2 can be very fast with the heat both sides conduction from top to bottom, the heat energy that aluminum alloy conductor 1 produced promptly can be very fast to cable core week side transmission, is favorable to the heat dissipation of cable.
In this embodiment, as shown in fig. 2, a gap is left between the vertical portions of the two insulating layers 2, a pressure-resistant heat conductor 7 having an elliptical ring-shaped cross section is disposed in the gap, and two corresponding opposite sides of the pressure-resistant heat conductor 7 respectively contact the insulating layers 2 on the corresponding sides. The pressure-resistant heat conductor 7 is made of a heat-conducting and non-conducting material, and can promote heat conduction while playing an electric insulation role, namely, the pressure-resistant heat conductor can further promote the heat to be conducted to the upper side and the lower side of the part between the two insulation layers 2 relatively quickly. In addition, when the cable received the pressure of upper and lower direction, the upper and lower end of resistance to compression heat conductor 7 was close to each other by the extrusion, can make the left and right sides of resistance to compression heat conductor 7 keep away from each other dorsad, can promote two aluminum alloy conductor 1 that have insulating layer 2 and keep away from each other, prevents that aluminum alloy conductor 1 from compressing, its ability to exert resistance to compression promptly.
In this embodiment, as shown in fig. 2, the cross-section of inner liner 3 is the ring shape, two form clearance cavity 9 between the last downside of insulating layer 2 and inner liner 3, be equipped with in the clearance cavity 9 with the support bar 8 of 7 fixed connection of resistance to compression heat conductor and the 3 medial surfaces of attached inner liner, the width of support bar 8 is crescent to one side of attached inner liner 3 by one side of connecting resistance to compression heat conductor 7. When the cable receives the pressure of upper and lower direction, because the width of support bar 8 resistance to compression heat conductor 7 one side dorsad is great, then it can increase pressurized area, reduces pressure to be favorable to protecting resistance to compression heat conductor 7, and can reduce the pressure of inboard transmission, thereby can further protect aluminum alloy conductor 1.
In this embodiment, a vertical portion of the cross section of the insulating layer 2 is provided with a strip-shaped through hole 10, a length direction of the strip-shaped through hole 10 extends along a length direction of the cable, the two opposite sides corresponding to the pressure-resistant heat conductor 7 are fixed with a convex rib 6 located in the strip-shaped through hole 10, and a cross section of the convex rib 6 is triangular. Through the joint adaptation of bar opening 10 and protruding muscle 6, can be convenient for confirm two aluminum alloy conductor 1 that have insulating layer 2 and the position of resistance to compression heat conductor 7 to be connected two insulating layers 2 and resistance to compression heat conductor 7, so that form the cable core.
Otherwise, the same procedure as in example 1 was repeated.
Example 3
The present embodiment is different from embodiment 2 in that:
in the present embodiment, as shown in fig. 3, the insulating layer 2 includes a second insulator 23 and a second insulating heat conductor 24, and the second insulator 23 and the second insulating heat conductor 24 are intermittently and alternately distributed along the circumference of the "D" shaped cross section of the insulating layer 2. The second insulator 23 is made of an electrical insulating material, so that electric energy can be prevented from being dissipated; the second insulating heat conductor 24 is made of heat-conducting and non-conducting materials (such as silicone grease and high-heat-conducting silica gel), and can promote heat conduction while playing an electric insulation role, so that the whole peripheral sides of the two insulating layers 2 have an electric insulation effect, and the peripheral sides of the two insulating layers 2 can quickly transmit heat energy generated by the aluminum alloy conductor 1 to the peripheral sides of the cable core, thereby being beneficial to heat dissipation of the cable.
The rest is the same as example 2.
The compressed D-shaped aluminum alloy conductor photovoltaic cable has the specific application principle that:
the aluminum alloy conductor 1 is formed by twisting a plurality of strands of fine and soft aluminum alloy wires, and is made into a D-shaped conductor through compression molding, the outer diameter of the cable can be reduced by about 10%, the weight of the cable can be reduced by about 20%, and the cost can be reduced by about 50%, so that the purposes of reducing diameter, reducing weight and reducing cost can be achieved.
The inner liner layer 3 and the outer sheath 5 are both made of 125 ℃ irradiation crosslinking low-smoke halogen-free flame-retardant polyolefin material. After irradiation crosslinking processing, the low-smoke halogen-free flame-retardant polyolefin material has the characteristics of low smoke, no halogen, flame retardance, acid and alkali resistance, salt water resistance, salt mist resistance, ultraviolet ray resistance, ozone aging resistance and the like, so that the aluminum alloy conductor 1 can be better protected.
The double-steel-belt armor layer 4 can play protection roles such as compression resistance protection and the like on the cable core, is convenient for realizing the pipe penetration of the directly-buried surface of the cable, and can save the cable pipe penetration and the laying construction cost.
The insulating layer 2 comprises an insulator and an insulating heat conductor, and promotes heat conduction while achieving an electrical insulating effect; and through the setting of resistance to compression heat conductor 7, can promote the heat that is difficult for the external heat dissipation to the outside conduction between two aluminum alloy conductors 1 specially for 2 week sides homoenergetic of two insulating layers all can be very fast with the heat energy transmission of aluminum alloy conductor 1 production to cable core week side, are favorable to the heat dissipation of cable.
Set up resistance to compression heat conductor 7 between two aluminum alloy conductor 1, and resistance to compression heat conductor 7's cross-section is oval form ring body, when the cable received the pressure of upper and lower direction, resistance to compression heat conductor 7's upper and lower end was pushed and is close to each other, can make resistance to compression heat conductor 7's the left and right sides keep away from dorsad, can promote two aluminum alloy conductor 1 that have insulating layer 2 and keep away from each other, prevent aluminum alloy conductor 1 pressurized, it can exert the compressive action promptly, promote the resistance to compression protection to the conductor.
According to the above, the utility model discloses can realize reducing the diameter, subtract heavy, fall originally, and the cable has better heat dissipation and compressive property.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A compressed D-shaped aluminum alloy conductor photovoltaic cable comprises an aluminum alloy conductor (1), an insulating layer (2), an inner lining layer (3) and an outer sheath (5); the aluminum alloy conductor is characterized in that the cross section of the aluminum alloy conductor (1) is in a compact D shape, the aluminum alloy conductor (1) is provided with two aluminum alloy conductors, the vertical parts of the two aluminum alloy conductors (1) are oppositely arranged, the insulating layer (2) is wrapped on the outer side of each aluminum alloy conductor (1), the cross section of the insulating layer (2) is in a hollow D shape, the inner liner (3) is sleeved on the outer sides of the two insulating layers (2), and the outer sheath (5) is sleeved on the outer side of the inner liner (3).
2. A compacted D-shaped aluminium alloy conductor photovoltaic cable according to claim 1, wherein the insulating layer (2) comprises a first insulator (21) and a first insulating and heat conducting body (22), the first insulator (21) being located in an arc-shaped portion corresponding to the cross-section of the insulating layer (2), the first insulating and heat conducting body (22) being located in a vertical portion corresponding to the cross-section of the insulating layer (2).
3. A compacted D-shaped aluminum alloy conductor photovoltaic cable according to claim 1, wherein the insulating layer (2) comprises a second insulator (23) and a second insulating and heat conducting body (24), the second insulator (23) and the second insulating and heat conducting body (24) being intermittently and alternately distributed along the circumference of the "D" shaped cross-section of the insulating layer (2).
4. A compacted D-shaped aluminum alloy conductor photovoltaic cable according to claim 2 or 3, wherein a gap is left between the vertical parts of the two insulating layers (2), a compression-resistant heat conductor (7) with an oval ring-shaped cross section is arranged in the gap, and two corresponding opposite sides of the compression-resistant heat conductor (7) are respectively contacted with the insulating layers (2) on the corresponding sides.
5. A sticis D shape aluminum alloy conductor photovoltaic cable of claim 4, characterized in that, the cross-section of inner liner (3) is the ring shape, two form clearance chamber (9) between the upper and lower side of insulating layer (2) and inner liner (3), be equipped with in clearance chamber (9) with resistance to compression heat conductor (7) fixed connection and attached inner liner (3) medial surface's support bar (8), the width of support bar (8) is crescent to one side of attached inner liner (3) by one side of connecting resistance to compression heat conductor (7).
6. A compressed D-shaped aluminum alloy conductor photovoltaic cable according to claim 4, wherein the insulating layer (2) is provided with strip-shaped through openings (10) at vertical sections, the length direction of the strip-shaped through openings (10) extends along the length direction of the cable, the compression-resistant heat conductor (7) is fixed with ribs (6) at two opposite sides of the corresponding side strip-shaped through openings (10), and the cross section of each rib (6) is triangular.
7. A compressed D-shaped aluminum alloy conductor photovoltaic cable according to claim 1, wherein the aluminum alloy conductor (1) is formed by twisting a plurality of strands of fine and soft aluminum alloy wires, and two aluminum alloy conductors (1) are symmetrically arranged and twisted to form a cable core.
8. The photovoltaic cable of claim 1, wherein the inner liner (3) and the outer sheath (5) are made of 125 ℃ irradiation cross-linked low-smoke halogen-free flame-retardant polyolefin material.
9. The compacted D-shaped aluminum alloy conductor photovoltaic cable according to claim 7 or 8, wherein a double steel tape armor layer (4) is arranged between the inner liner layer (3) and the outer sheath (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121323112.2U CN214956051U (en) | 2021-06-15 | 2021-06-15 | Photovoltaic cable with compressed D-shaped aluminum alloy conductor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121323112.2U CN214956051U (en) | 2021-06-15 | 2021-06-15 | Photovoltaic cable with compressed D-shaped aluminum alloy conductor |
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| CN214956051U true CN214956051U (en) | 2021-11-30 |
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| CN202121323112.2U Active CN214956051U (en) | 2021-06-15 | 2021-06-15 | Photovoltaic cable with compressed D-shaped aluminum alloy conductor |
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