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High-voltage silicone rubber flexible cable and processing technology thereof

A high-voltage silicon and flexible cable technology, applied in the direction of insulated cables, rubber insulators, bendable cables, etc., can solve the problems of poor high temperature resistance and short service life, and achieve the effects of outstanding anti-aging, convenient laying, and outstanding performance

Pending Publication Date: 2020-10-16
浙江元通线缆制造有限公司 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of poor high temperature resistance and short service life in the prior art, the invention provides a high-voltage silicone rubber flexible cable with good high temperature resistance and long service life and its processing technology

Method used

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  • High-voltage silicone rubber flexible cable and processing technology thereof
  • High-voltage silicone rubber flexible cable and processing technology thereof
  • High-voltage silicone rubber flexible cable and processing technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] High-voltage silicone rubber flexible cables, such as Figure 1 to Figure 3 As shown, it includes a conductor 1 twisted by copper wires. The outer wall of the conductor 1 is wrapped with a semi-conductive tape. The material of the conductor 1 is tinned copper wire. Since the long-term use temperature of the silicone rubber cable should reach 180°C For high temperature occasions and harsh environments, the conductor material needs to be tinned copper wire with excellent corrosion resistance and oxidation resistance. The conductor 1 is covered with an insulating shielding layer 2, a composite shielding layer 3, and an outer The protective layer 4 and the insulating shielding layer 2 include the inner shielding layer 5, the insulating layer 6 and the outer shielding layer 7 sequentially from the inside to the outside. The shielding layer 7, the inner shielding layer 5 and the insulating layer 6 adopt a low-temperature and low-pressure vulcanization system, and the outer sh...

Embodiment 2

[0026] High-voltage silicone rubber flexible cables, such as Figure 1 to Figure 3 As shown, on the basis of Example 1, the outer sheath 4 is made of silicone rubber material, and the temperature resistance level of the outer sheath 4 is -60°-180°. Under the conditions of high temperature, low temperature or more harsh environment, the cable can still work normally and stably; it has good heat resistance, cold resistance, aging resistance, ozone resistance and oil resistance; it has excellent mechanical and physical properties.

Embodiment 3

[0028] High-voltage silicone rubber flexible cables, such as Figure 1 to Figure 3 As shown, on the basis of Embodiment 1, the conductor 1 includes multiple layers of conductive layers made of copper wires, the twist length of the conductive layers gradually decreases from the inside to the outside, and the twisting directions of adjacent conductive layers are opposite. In order to ensure the flexibility of the cable, it is necessary to improve the flexibility and bendability of the cable conductor. The structural design of the conductor largely determines such performance; the thinner the diameter of the conductor monofilament, the better the flexibility; the gap between the adjacent conductive layers of the conductor Use forward and reverse twisting, and at the same time ensure that each layer has a small twist length (the twist length of the outermost layer is not greater than 12 times, the second outer layer is not greater than 14 times, and so on), the better the bending p...

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Abstract

The invention relates to the technical field of cables, and discloses a high-voltage silicone rubber flexible cable and a processing technology thereof. The cable comprises a conductor (1) formed by twisting copper wires, wherein the conductor (1) is made of tinned copper wires, and is sequentially coated with an insulation shielding layer (2), a composite shielding layer (3) and an outer protective layer (4) from inside to outside, the insulation shielding layer (2) sequentially comprises an inner shielding layer (5), an insulation layer (6) and an outer shielding layer (7) from inside to outside, the composite shielding layer (3) is formed by weaving a semi-conductive nylon tape and tinned wires, and is coated with a belting layer (8), and the outer protective layer (4) is made of a silicone rubber material. The cable has the characteristics of high temperature resistance, radiation resistance, cold resistance, acid and alkali resistance, corrosive smell resistance, water resistanceand the like, is soft in structure, convenient to lay, stable in electrical performance under the condition of high temperature, particularly outstanding in ageing resistance and long in service life,and is widely applied to manufacturing industries such as metallurgy, petrochemical engineering and electric power.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a high-voltage silicone rubber flexible cable and its processing technology. Background technique [0002] High-voltage silicone rubber cables for high-temperature environments are mainly used in harsh environments such as metallurgy, petrochemical industry, and electric power. The long-term use of this type of cable has an ambient temperature above 150°C, and it must have strong oil resistance and cold resistance. Extremely high, the partial discharge cannot be greater than 20Pc. At present, most of this product is imported, and it is still in a blank field in China. [0003] Existing high-voltage silicone rubber cables generally use an extruded layer of insulating layer, without extruded semi-conductive silicone rubber shielding layer inside and outside. Since the cable conductor is twisted by multiple wires, it is easy to form air between it and the insulating layer. Gap, the ...

Claims

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Application Information

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IPC IPC(8): H01B7/04H01B7/17H01B7/22H01B7/28H01B7/282H01B7/29H01B13/02H01B13/14H01B13/22H01B13/24H01B3/28H01B7/02
CPCH01B7/04H01B3/28H01B7/29H01B7/28H01B7/2806H01B7/2825H01B7/17H01B7/02H01B7/228H01B13/02H01B13/14H01B13/24H01B13/22H01B3/46
Inventor 徐季新邹洪宇邱金波王超
Owner 浙江元通线缆制造有限公司
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