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Durable cable

A kind of cable and durable technology, applied in the field of durable cables, can solve the problems of tensile strength, heat dissipation, waterproof and other performance needs to be improved, poor cable durability, cable damage and other problems, to improve the compression protection performance, the structure is strong, and the compression protection is guaranteed. Effect

Active Publication Date: 2021-10-08
ANHUI LINGYU CABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing cables will be damaged by long-term rolling during use
Therefore, power cables still have problems such as poor compressive resistance, tensile resistance, heat dissipation, waterproof and other performances that need to be improved, resulting in poor durability of the cable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1-3The shown durable cable includes a cable core, a protective layer and an outer sheath 5 arranged sequentially from the inside to the outside. The outer sheath 5 is made of EPDM rubber, which has excellent Weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance and other properties, so that it can play a variety of protective functions on the surface of the cable. At least two wire cores 2 (in this embodiment, there are Four wire cores 2), the wire core 2 includes a conductor, an insulating layer and a shielding layer arranged in sequence from inside to outside, and the protective layer includes a waterproof layer 4 and an armor layer 6 arranged outside the waterproof layer 4. The waterproof protection of the cable core can be enhanced through the waterproof layer 4; the strength of the power cable can be improved through the armor layer 6, and the radial pressure bearing performance of the power cable c...

Embodiment 2

[0049] The difference between this embodiment and embodiment 1 is:

[0050] In this example, if Figure 6 As shown, a circle of support blocks 3 equally spaced is provided on the outer ring surface of each of the small ring sleeves 8 , and both ends of the support blocks 3 extend beyond the end surfaces of the corresponding sides of the small ring sleeves 8 . Only one circle of support block 3 is arranged on the outside of each small ring sleeve 8, and the two ends of the support block 3 are respectively connected to the large ring sleeve 7 and the small ring sleeve 8 on both sides, which can meet the design requirements and facilitate support Block 3 installation.

[0051] In this example, if Figure 4-6 As shown, in each adjacent small ring sleeve 8 and large ring sleeve 7, the short support bars 1 and the long support bars 10 correspond one-to-one, and the short support bars 1 and the long support bars 10 are misplaced. The short support bars 1 and the long support bars ...

Embodiment 3

[0054] The difference between this embodiment and embodiment 2 is:

[0055] In this example, if Figure 7 As shown, in the same annular gap, the structure of the support block 3 is fan-shaped, and the opposite ends of every two adjacent support blocks 3 are respectively fixed with matching rubber bumps 11 and rubber concave blocks 12 . When the support block 3 expands when encountering water, the gap between the support blocks 3 can be filled. At this time, the rubber bump 11 can engage with the corresponding rubber concave block 12 and stick to each other, which is conducive to strengthening the two adjacent supports. Contact tightness between blocks 3.

[0056] Others are with embodiment 2.

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Abstract

The invention discloses a durable cable, and belongs to the field of cables, and the durable cable comprises a cable core, a protection layer and an outer protection layer; the cable core is alternately and intermittently sleeved with small circular ring sleeves and large circular ring sleeves in the length direction of the cable core, and the opposite sides of every two adjacent small circular ring sleeves are located on the inner side of the large circular ring sleeve between the two small circular ring sleeves; a reinforcing core extending in the length direction of the cable is arranged at the circle center of the cable core, short supporting strips connected to the reinforcing core are fixed to the inner ring surface of the small circular ring sleeve at equal intervals along the circumferential side of the small circular ring sleeve, and long supporting strips connected to the reinforcing core are fixed to the inner ring surface of the large circular ring sleeve at equal intervals along the circumferential side of the large circular ring sleeve; an annular gap is formed between each small circular ring sleeve and the corresponding adjacent large circular ring sleeve, supporting blocks are distributed in the annular gaps at equal intervals along the circumferential sides of the annular gaps, and the supporting blocks are made of water swelling materials. The cable is firm in structure, reasonable in design, safe and reliable, has better compression resistance, tensile resistance, heat dissipation, waterproof performance and the like, and can improve the durability of the cable, thereby prolonging the service life of the cable.

Description

technical field [0001] The invention relates to the field of cables, in particular to a durable cable. Background technique [0002] Power cable (powercable), a cable used to transmit and distribute electrical energy. It is often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. Power cables are cable products used to transmit and distribute high-power electric energy in the main line of the power system, including 1-500KV and above various voltage levels and various insulated power cables. [0003] A power cable can be defined as: a collection consisting of the following parts; one or more insulated cores, and their respective possible covering layers, total protective layer and outer sheath, and the cable can also have additional uninsulated conductor. Long-term cru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/18H01B7/282H01B7/288
CPCH01B7/18H01B7/288H01B7/282Y02A30/14
Inventor 李万松
Owner ANHUI LINGYU CABLE TECH
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