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Heat insulation-type cable

A cable and cable core technology, applied in the field of thermal insulation cables, can solve the problems of easy loosening of the cable core, affecting the current carrying capacity of the cable, and the inability of the cable to work, achieving good thermal stability, light weight, specific heat and mechanical vibration resistance Effect

Inactive Publication Date: 2016-08-31
WUXI NEW SUNSHINE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the cables in the prior art have good fire resistance, they have limited heat insulation effect and poor bendability, which affect the current carrying capacity of the cables in normal operation.
[0004] In the cables of the prior art, the cable core is easy to loose, and when squeezed or bent, the core is easy to break, making the cable unable to work

Method used

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  • Heat insulation-type cable

Examples

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Embodiment Construction

[0015] Such as figure 1 As shown, an insulated cable according to the present invention includes a cable core, and an inner sheath 8 and an outer sheath 12 are extruded outside the core; the cable core is formed by a triangular bracket 1, three extruded in each other The insulated wire core in the triangular bracket and the ground wire 2 located at the three top corners of the triangular bracket 1 are formed; the insulated wire core is composed of an aluminum conductor 3, an insulating layer 4 and an insulating shielding layer 5 that are sequentially extruded outside the aluminum conductor And a silicone fireproof sleeve 6 arranged outside the insulating shielding layer; ceramic fiber filaments 7 are arranged between the triangular bracket 1 and the inner sheath 8, which not only makes the cable light weight, high temperature resistance, good thermal stability, and thermal conductivity Low, low specific heat and resistance to mechanical vibration, it also has the ability to res...

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Abstract

The invention discloses a heat insulation-type cable, which comprises a cable core. An inner sheath and an outer sheath are extruded outside the cable core; the cable core is composed of a triangular support, three insulated wire cores mutually extruded inside the triangular support and ground wires located at three vertex angles of the triangular support; a ceramic fiber is arranged between the triangular support and the inner sheath; and an elastic buffer layer with a thickness of 2 to 5 mm, a metal armored layer with a thickness of 2 to 4 mm and a rock wool heat insulation layer with a thickness of 3 to 6 mm are sequentially arranged between the inner sheath and the outer sheath. Through arranging multiple heat insulation structures, the cable of the invention has the advantages of good heat insulation performance, high temperature resistance, good heat stability, low heat conductivity and the like.

Description

Technical field [0001] The invention relates to the field of power cables, in particular to a heat-insulated cable. Background technique [0002] At present, with the development of my country’s society and economy, the amount of cables is increasing rapidly, and the quality requirements for cables are also continuously improved. For example, the cables used in the fields of computers and computer rooms have high and low temperature resistance, oil resistance, and mechanical damage resistance. , Anti-interference performance and other aspects are particularly demanding. Only by meeting the requirements can the production and use of the cable be better guaranteed. [0003] Although the cable of the prior art has good fire resistance, its thermal insulation effect is limited and its flexibility is poor, which affects the current carrying capacity of the cable during normal operation. [0004] In the cable of the prior art, the cable core is easy to loosen, and the core is easily broke...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/29H01B7/18H01B7/295H01B7/28H01B7/282H01B7/02H01B7/17H01B9/02
CPCY02A30/14H01B7/29H01B7/02H01B7/17H01B7/18H01B7/28H01B7/282H01B7/295H01B9/02
Inventor 董建深贺云芳刘永伟
Owner WUXI NEW SUNSHINE CABLE
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