CN214043150U

CN214043150U - Cold-resistant and distortion-resistant cable for 35kv rubber insulation sheath wind driven generator

Info

Publication number: CN214043150U
Application number: CN202023096390.7U
Authority: CN
Inventors: 吴军荣; 蒋天刚; 吴自勇; 石海
Original assignee: Jiangsu Baoan Cable Co ltd
Current assignee: Jiangsu Bao'an Cable Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-08-24
Anticipated expiration: 2030-12-21

Abstract

The utility model relates to a 35kv rubber insulation sheath aerogenerator is with cold-resistant warp cable, it includes the conductor that is formed by the thin copper wire transposition be equipped with a plurality of aramid fiber silks in the conductor outside is equipped with the internal shield layer outside is equipped with the insulating layer outside is equipped with the external shield layer, and they constitute electrically conductive unit, and a plurality of electrically conductive unit are circumscribed mutually and set up electrically conductive unit outside clearance is equipped with the packing strip be equipped with the tensile unit in the packing strip outside is equipped with the band layer outside is equipped with low smoke and zero halogen sheath, the packing strip includes outer laminating section both ends are equipped with interior laminating section be equipped with tensile unit hole between outer laminating section and the interior laminating section. The utility model discloses the cable roundness is good, can guarantee that the cable is difficult to the rising soon after the atress is crooked, tensile, and the sinle silk is difficult to the rupture, long service life.

Description

Cold-resistant and distortion-resistant cable for 35kv rubber insulation sheath wind driven generator

Technical Field

The utility model relates to a cable, concretely relates to cable for aerogenerator.

Background

With the rapid development of national economy, the using amount and the application range of the cable used as the main artery of the national economy are larger and larger. In recent years, the demand of wind power generation, transformer substations, smelting, petrochemical industry and other industries on cables is extremely large.

The 35kV cold-resistant and torsion-resistant flexible cable for wind power generation is mainly used for electric energy output of a wind power generator, and the cable has excellent torsion resistance under normal temperature and low temperature conditions. The cable also needs to have the combination properties of load resistance, flame retardance, oil resistance, salt spray resistance and the like.

The rubber torsion cable in China is prone to causing the breakage of a wire core due to the action of various mechanical stresses such as frequent bending and stretching in the operation process, and once the wire core is broken, the whole production line stops production, so that great loss is caused to users.

Disclosure of Invention

The purpose of the invention is as follows: the utility model aims at overcoming the not enough among the prior art, provide a stranding circularity good, can guarantee that the cable is difficult to the rise to revolve after the atress is crooked, tensile, and the sinle silk is difficult to the rupture, long service life's 35kv rubber insulation sheath aerogenerator is with cold-resistant warp cable.

The technical scheme is as follows: in order to solve the technical problem, the cold-resistant and distortion-resistant cable for the 35kv rubber insulation sheath wind driven generator comprises a conductor formed by twisting thin copper wires, a plurality of aramid fiber filaments are arranged in the conductor, an inner shielding layer is arranged outside the conductor, an insulating layer is arranged outside the inner shielding layer, an outer shielding layer is arranged outside the insulating layer, the conductor, the inner shielding layer, the insulating layer and the outer shielding layer form conductive units, a plurality of conductive units are externally tangent to each other, a filling strip is arranged in the gap at the outer side of the conductive unit, a tensile unit is arranged in the filling strip, a wrapping band layer is arranged outside the filling strip, a low-smoke halogen-free sheath is arranged outside the wrapping band layer, the filling strip comprises an outer attaching section, the outer laminating section is provided with inner laminating sections at two ends, the inner sides of the two inner laminating sections are connected, and a tensile unit hole is formed between the outer laminating section and the inner laminating section.

Furthermore, the insulating layer is an ethylene propylene rubber insulating layer.

Further, the inner attaching section is arranged close to the outer wall of the conductive unit.

Further, the conductive units are provided in three.

Further, the tensile unit is provided in three.

Has the advantages that: compared with the prior art, the utility model, it is showing the advantage and is: the utility model has the advantages of reasonable overall structure, add aramid fiber silk when the conductor adopts thin copper wire to restraint the hank, the silk footpath can be little to 0.12mm, compound hank pitch ratio is about 10 times, make the conductor softer, there is tensile effect more, it is more resistant distortion, it is insulating to adopt three-layer crowded ethylene propylene rubber altogether, good insulation, the interior laminating section and the conductive element outer wall of packing strip are near setting up, the circularity, the holding power, intensity is better, set up the tensile unit in packing strip, improve whole bearing capacity greatly, can guarantee that the cable is crooked at the atress, after stretching, be difficult to the rising soon, the sinle silk is difficult to break, the sheath adopts halogen-free low smoke sheath, high strength, high abrasion resistance, sheath intensity can reach 15.0Mpa, the elongation can reach 500%, -40 ℃ low temperature twists reverse 1440 degree, 4 rings 20000 times do not ftracture.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1, the cold-resistant and distortion-resistant cable for 35kv rubber insulation sheath wind power generator of the present invention comprises a conductor 1 formed by twisting fine copper wires, wherein a plurality of aramid fiber filaments 2 are arranged in the conductor 1, an inner shielding layer 3 is arranged outside the conductor 1, an insulating layer 4 is arranged outside the inner shielding layer 3, the insulating layer 4 is an ethylene-propylene rubber insulating layer, an outer shielding layer 5 is arranged outside the insulating layer 4, the conductor 1, the inner shielding layer 3, the insulating layer 4 and the outer shielding layer 5 constitute conductive units, the three conductive units are arranged in an externally-tangent manner, a filler strip is arranged in a gap outside the conductive units, a tensile unit 6 is arranged in the filler strip, a wrapping tape layer 7 is arranged outside the filler strip, a low-smoke zero-halogen sheath 8 is arranged outside the wrapping tape 7, and the filler strip comprises an outer bonding section 9, the outer attaching section 9 is provided with inner attaching sections 10 at two ends, the inner sides of the two inner attaching sections 10 are connected, a tensile unit hole 11 is arranged between the outer attaching section 9 and the inner attaching section 10, and the inner attaching section 10 is arranged close to the outer wall of the conductive unit. The utility model has the advantages of reasonable overall structure, add aramid fiber silk when the conductor adopts thin copper wire to restraint the hank, the silk footpath can be little to 0.12mm, compound hank pitch ratio is about 10 times, make the conductor softer, there is tensile effect more, it is more resistant distortion, it is insulating to adopt three-layer crowded ethylene propylene rubber altogether, good insulation, the interior laminating section and the conductive element outer wall of packing strip are near setting up, the circularity, the holding power, intensity is better, set up the tensile unit in packing strip, improve whole bearing capacity greatly, can guarantee that the cable is crooked at the atress, after stretching, be difficult to the rising soon, the sinle silk is difficult to break, the sheath adopts halogen-free low smoke sheath, high strength, high abrasion resistance, sheath intensity can reach 15.0Mpa, the elongation can reach 500%, -40 ℃ low temperature twists reverse 1440 degree, 4 rings 20000 times do not ftracture.

The utility model provides a thinking and method, the method and the way of specifically realizing this technical scheme are many, above only the utility model discloses a preferred embodiment should point out, to the ordinary technical personnel in this technical field, not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also be regarded as the utility model discloses a protection range, each component that does not make clear and definite in this embodiment all can be realized with prior art.

Claims

1. The utility model provides a 35kv rubber insulation sheath aerogenerator is with cold-resistant distortion cable which characterized in that: the cable comprises a conductor (1) formed by stranding fine copper wires, a plurality of aramid fiber filaments (2) are arranged in the conductor (1), an inner shielding layer (3) is arranged outside the conductor (1), an insulating layer (4) is arranged outside the inner shielding layer (3), an outer shielding layer (5) is arranged outside the insulating layer (4), conductive units are formed by the conductor (1), the inner shielding layer (3), the insulating layer (4) and the outer shielding layer (5), the conductive units are externally tangent to each other, filling strips are arranged at gaps outside the conductive units, tensile units (6) are arranged in the filling strips, a wrapping tape layer (7) is arranged outside the filling strips, a low-smoke halogen-free sheath (8) is arranged outside the wrapping tape layer (7), the filling strips comprise an outer bonding section (9), inner bonding sections (10) are arranged at two ends of the outer bonding section (9), the inner sides of the two inner joint sections (10) are connected, and a tensile unit hole (11) is arranged between the outer joint section (9) and the inner joint section (10).

2. The cold-resistant and torsion-resistant cable for the 35kv rubber insulation sheath wind driven generator as claimed in claim 1, wherein: the insulating layer (4) is an ethylene propylene rubber insulating layer.

3. The cold-resistant and torsion-resistant cable for the 35kv rubber insulation sheath wind driven generator as claimed in claim 1, wherein: the inner attaching section (10) is arranged close to the outer wall of the conductive unit.

4. The cold-resistant and torsion-resistant cable for the 35kv rubber insulation sheath wind driven generator as claimed in claim 1, wherein: the conductive units are arranged in three.

5. The cold-resistant and torsion-resistant cable for the 35kv rubber insulation sheath wind driven generator as claimed in claim 1, wherein: the tensile units (6) are three.