CN209912588U - Rubber wind energy cable - Google Patents
Rubber wind energy cable Download PDFInfo
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- CN209912588U CN209912588U CN201920899856.5U CN201920899856U CN209912588U CN 209912588 U CN209912588 U CN 209912588U CN 201920899856 U CN201920899856 U CN 201920899856U CN 209912588 U CN209912588 U CN 209912588U
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Abstract
A rubber wind energy cable has the structure that: the cable is formed by sequentially wrapping an inner sheath and an outer sheath outside a cable core; the cable core is formed by twisting a main wire core, a ground wire core and a filler core, and the cabling pitch-diameter ratio is 12-14 times; the main wire cores are 3 same, the ground wire cores are 1, and the filling cores comprise 4 edge filling cores and 1 central filling core; the main wire cores and the ground wire cores are axially symmetrical around the central core filling, and 1 edge core filling is arranged between every two adjacent main wire cores and the ground wire cores; the main wire core is composed of a conductor shielding layer, a first insulating layer and an insulating shielding layer which are sequentially wrapped outside a first conductor; the ground wire core is formed by wrapping a second insulating layer outside a second conductor; the first and second conductors are each a conductor stranded from a tinned copper monofilament. The cable is environment-friendly, and has excellent low-smoke halogen-free flame retardant performance, extremely high electrical performance and physical and mechanical performance, and good oil resistance and weather resistance.
Description
Technical Field
The technical scheme belongs to the technical field of cables, and particularly relates to a rubber wind energy cable.
Background
The wind energy cable used as a blood vessel and a nerve of a wind power generation system plays a very important role, and the performance requirement of the cable is always high due to the fact that the environment of wind power generation is severe, the service life of a fan is long, the cable continuously rotates along with the fan and the like. The wind energy cable product of demand has characteristics such as resistant twist, temperature resistant, salt spray resistance, resistant oil, resistant ultraviolet ray, resistant time, softness portable, and along with the increase of requirements such as service environment, the performance requirement of cable also constantly increases: medium voltage, low smoke, no halogen and the like, and the original ethylene-propylene insulating chlorinated polyethylene sheath wind energy cable can not completely meet the new requirements.
Disclosure of Invention
In order to solve the above-mentioned problem that exists among the prior art, the utility model provides a rubber wind energy cable, its structure is: the cable is formed by sequentially wrapping an inner sheath and an outer sheath outside a cable core; the thickness of the inner sheath is 1.6-2.8 mm, and the thickness of the outer sheath is 3.2-4.5 mm;
the cable core is formed by twisting a main wire core, a ground wire core and a filler core, and the cabling pitch-diameter ratio is 12-14 times;
the main wire cores are provided with 3 same wires, the ground wire cores are provided with 1 wire, and the filler cores comprise 4 edge filler cores and 1 central filler core; the main wire cores and the ground wire cores are axially symmetrical around the central core filling, and 1 edge core filling is arranged between every two adjacent main wire cores and the ground wire cores;
the main wire core is composed of a conductor shielding layer, a first insulating layer and an insulating shielding layer which are sequentially wrapped outside a first conductor;
the ground wire core is formed by wrapping a second insulating layer outside a second conductor;
the first conductor and the second conductor are both conductors stranded by tin-plated copper monofilaments;
the nominal diameter range of the first conductor is 10.7-16.6 mm; the nominal thickness range of the conductor shielding layer is 0.4-0.7 mm; the nominal thickness range of the first insulating layer is 5.6-8.0 mm; the nominal thickness range of the insulation shielding layer is 0.61-0.88 mm;
the nominal diameter range of the second conductor is 12.8-15.2 mm; the nominal thickness range of the second insulating layer is 5.3-6.4 mm.
Furthermore, the materials of the first conductor and the second conductor are 5 th tin-plated copper conductors which meet the regulation of GB/T3956;
the first conductor and the second conductor are stranded wires formed by bundling tin-plated copper monofilaments according to a pitch-diameter ratio of 20-25, the stranded wires are then twisted repeatedly to form the conductor, and the pitch-diameter ratio of the twisted repeatedly is as follows: 15-20 of inner layer and 10-12 of outer layer.
The conductor shielding layer and the insulation shielding layer are both formed by extruding and wrapping nonmetal semiconducting materials which take EVA and nitrile-butadiene rubber as base materials; the first insulating layer is formed by extruding ethylene propylene rubber insulating material;
the second insulating layer is formed by extruding and wrapping a semi-conductive material taking EVA and nitrile-butadiene rubber as base materials;
the inner sheath and the outer sheath are both formed by extruding low-smoke halogen-free flame-retardant rubber sheath materials;
the filling core is formed by a semi-conductive material taking EVA and nitrile-butadiene rubber as base materials.
Preferably, the inner sheath is 2.5mm thick and the outer sheath is 3.5mm thick;
the nominal diameter of the first conductor is 13.5mm, and the nominal thicknesses of the conductor shielding layer, the first insulating layer and the insulating shielding layer are 0.6mm, 6.5mm and 0.8mm respectively;
the nominal diameter of the second conductor is 13.5mm and the nominal thickness of the second insulating layer is 6.0 mm.
Compared with the existing ethylene-propylene insulating chlorinated polyethylene sheath wind energy cable, the cable can be used in a medium-pressure fan unit. The low-smoke halogen-free flame-retardant rubber sheath is adopted, so that the environment for using the cable is more environment-friendly.
Drawings
FIG. 1 is a schematic radial cross-sectional view of the present cable;
in the figure: the cable comprises a first conductor 1, a conductor shielding layer 2, a first insulating layer 3, an insulating shielding layer 4, a second conductor 5, a second insulating layer 6, an inner sheath 7, an outer sheath 8, an edge core 9 and a center filling 10.
Detailed Description
The technical scheme is further explained by combining the drawings and the detailed implementation mode as follows:
referring to fig. 1, the rubber wind energy cable of the present embodiment has the following structure: the cable is formed by sequentially wrapping an inner sheath and an outer sheath outside a cable core; the thickness of the inner sheath is 1.6-2.8 mm, and the thickness of the outer sheath is 3.2-4.5 mm;
the cable core is formed by twisting a main wire core, a ground wire core and a filler core, and the cabling pitch-diameter ratio is 12-14 times;
the main wire cores are provided with 3 same wires, the ground wire cores are provided with 1 wire, and the filler cores comprise 4 edge filler cores and 1 central filler core; the main wire cores and the ground wire cores are axially symmetrical around the central core filling, and 1 edge core filling is arranged between every two adjacent main wire cores and the ground wire cores;
the main wire core is composed of a conductor shielding layer, a first insulating layer and an insulating shielding layer which are sequentially wrapped outside a first conductor;
the ground wire core is formed by wrapping a second insulating layer outside a second conductor;
the first conductor and the second conductor are both conductors stranded by tin-plated copper monofilaments;
the nominal diameter range of the first conductor is 10.7-16.6 mm; the nominal thickness range of the conductor shielding layer is 0.4-0.7 mm; the nominal thickness range of the first insulating layer is 5.6-8.0 mm; the nominal thickness range of the insulation shielding layer is 0.61-0.88 mm;
the nominal diameter range of the second conductor is 12.8-15.2 mm; the nominal thickness range of the second insulating layer is 5.3-6.4 mm.
In this example:
the first conductor and the second conductor are both made of 5 th tin-plated copper conductor in accordance with GB/T3956;
the first conductor and the second conductor are stranded wires formed by bundling tin-plated copper monofilaments according to a pitch-diameter ratio of 20-25, the stranded wires are then twisted repeatedly to form the conductor, and the pitch-diameter ratio of the twisted repeatedly is as follows: 15-20 of inner layer and 10-12 of outer layer.
The conductor shielding layer and the insulation shielding layer are both formed by extruding and wrapping nonmetal semiconducting materials which take EVA and nitrile-butadiene rubber as base materials; the first insulating layer is formed by extruding ethylene propylene rubber insulating material;
the second insulating layer is formed by extruding and wrapping a semi-conductive material taking EVA and nitrile-butadiene rubber as base materials;
the inner sheath and the outer sheath are both formed by extruding low-smoke halogen-free flame-retardant rubber sheath materials;
the filling core is formed by a semi-conductive material taking EVA and nitrile-butadiene rubber as base materials.
The thickness of the inner sheath is 2.5mm, and the thickness of the outer sheath is 3.5 mm;
the nominal diameter of the first conductor is 13.5mm, and the nominal thicknesses of the conductor shielding layer, the first insulating layer and the insulating shielding layer are 0.6mm, 6.5mm and 0.8mm respectively;
the nominal diameter of the second conductor is 13.5mm and the nominal thickness of the second insulating layer is 6.0 mm.
Data sheet for testing electrical and mechanical properties of the cable of this example
Through detection, the following performance requirements of the cable are as follows:
1. ultraviolet ray resistance: meets the requirement of GB/T33606 annex E
2. Oil resistance: meets the requirements of IEC 60811-403-
3. Ozone resistance: meets the requirements of IEC 60811-403-
4. Flame retardance: meets the requirements of IEC60332-1
5. Low smoke: the smoke density and the light transmittance are more than or equal to 60 percent
6. Halogen-free: meets the requirements of IEC 60754-1 and IEC60754-2
7. Twisting: meets the requirement of GB/T33606 appendix B.
Claims (4)
1. A rubber wind energy cable is characterized in that the structure is as follows: the cable is formed by sequentially wrapping an inner sheath and an outer sheath outside a cable core; the thickness of the inner sheath is 1.6-2.8 mm, and the thickness of the outer sheath is 3.2-4.5 mm;
the cable core is formed by twisting a main wire core, a ground wire core and a filler core, and the cabling pitch-diameter ratio is 12-14 times;
the main wire cores are provided with 3 same wires, the ground wire cores are provided with 1 wire, and the filler cores comprise 4 edge filler cores and 1 central filler core; the main wire cores and the ground wire cores are axially symmetrical around the central core filling, and 1 edge core filling is arranged between every two adjacent main wire cores and the ground wire cores;
the main wire core is composed of a conductor shielding layer, a first insulating layer and an insulating shielding layer which are sequentially wrapped outside a first conductor;
the ground wire core is formed by wrapping a second insulating layer outside a second conductor;
the first conductor and the second conductor are both conductors stranded by tin-plated copper monofilaments;
the nominal diameter range of the first conductor is 10.7-16.6 mm; the nominal thickness range of the conductor shielding layer is 0.4-0.7 mm; the nominal thickness range of the first insulating layer is 5.6-8.0 mm; the nominal thickness range of the insulation shielding layer is 0.61-0.88 mm;
the nominal diameter range of the second conductor is 12.8-15.2 mm; the nominal thickness range of the second insulating layer is 5.3-6.4 mm.
2. The rubber wind energy cable according to claim 1, wherein the first and second conductors are both made of 5 th tin-plated copper conductor according to GB/T3956;
the first conductor and the second conductor are stranded wires formed by bundling tin-plated copper monofilaments according to a pitch-diameter ratio of 20-25, the stranded wires are then twisted repeatedly to form the conductor, and the pitch-diameter ratio of the twisted repeatedly is as follows: 15-20 of inner layer and 10-12 of outer layer.
3. The rubber wind energy cable according to claim 1, wherein the conductor shield layer and the insulation shield layer are both formed by extruding a non-metallic semi-conductive material based on EVA and nitrile-butadiene rubber; the first insulating layer is formed by extruding ethylene propylene rubber insulating material;
the second insulating layer is formed by extruding and wrapping a semi-conductive material taking EVA and nitrile-butadiene rubber as base materials;
the inner sheath and the outer sheath are both formed by extruding low-smoke halogen-free flame-retardant rubber sheath materials;
the filling core is formed by a semi-conductive material taking EVA and nitrile-butadiene rubber as base materials.
4. The rubber wind energy cable of claim 1, wherein said inner sheath is 2.5mm thick and said outer sheath is 3.5mm thick;
the nominal diameter of the first conductor is 13.5mm, and the nominal thicknesses of the conductor shielding layer, the first insulating layer and the insulating shielding layer are 0.6mm, 6.5mm and 0.8mm respectively;
the nominal diameter of the second conductor is 13.5mm and the nominal thickness of the second insulating layer is 6.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920899856.5U CN209912588U (en) | 2019-06-15 | 2019-06-15 | Rubber wind energy cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920899856.5U CN209912588U (en) | 2019-06-15 | 2019-06-15 | Rubber wind energy cable |
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| Publication Number | Publication Date |
|---|---|
| CN209912588U true CN209912588U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920899856.5U Active CN209912588U (en) | 2019-06-15 | 2019-06-15 | Rubber wind energy cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023040054A1 (en) * | 2021-09-16 | 2023-03-23 | 江苏上上电缆集团有限公司 | Method for manufacturing ethylene propylene-insulated low-smoke halogen-free torsion-resistant medium-pressure wind power cable, and cable |
-
2019
- 2019-06-15 CN CN201920899856.5U patent/CN209912588U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023040054A1 (en) * | 2021-09-16 | 2023-03-23 | 江苏上上电缆集团有限公司 | Method for manufacturing ethylene propylene-insulated low-smoke halogen-free torsion-resistant medium-pressure wind power cable, and cable |
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