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Power cable

A composition and base resin technology, applied in the direction of power cables, insulated cables, power cables with shielding layer/conductive layer, etc., can solve the problems of limited use, cold resistance, insufficient flexibility and bendability, and reduced workability, etc. question

Active Publication Date: 2020-12-04
LG CABLE LTD (KR)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polypropylene resin has insufficient cold resistance due to high rigidity, flexibility, and flexibility (flexibility), so there is a problem in laying a cable including an insulating layer produced thereby. problem of decreased performance and limited use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

manufacture example

[0160] The base resin composed of the composition and content shown in Table 2 below was preheated at 180° C. for 10 minutes, pressed at 20 MPa for 10 minutes, and then cooled to prepare insulating samples. In addition, cable samples in which insulating layers were formed were respectively manufactured by extruding the base resin on conductors. The unit of content described in Table 3 is a weight part.

[0161] [table 3]

[0162] Example 1 Example 2 Example 3 Example 4 Comparative example 1 Comparative example 2 Resin A 30 50 60 70 80 100 Resin B 70 50 40 30 20 0

[0163] Resin A: Polypropylene resin; Resin B: Heterogeneous resin with propylene copolymer dispersed in a polypropylene matrix

[0164] 2. Evaluation of physical properties

[0165] 1) Bendability evaluation

[0166] The above-mentioned sample was prepared in a size of length×width×thickness=100 mm×100 mm×3 mm, and three or more parts of the sample prepared as abov...

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PUM

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Abstract

The present invention relates to a power cable. Specifically, the present invention relates to a power cable composed of an insulation material that is ecofriendly and has excellent heat resistance and mechanical strength while exhibiting excellent cold resistance, flexibility, pliability, impact resistance, ease in installation, workability, etc. which are in a trade-off relationship with such physical properties.

Description

technical field [0001] The invention relates to a power cable. Specifically, the present invention relates to an environment-friendly and excellent heat resistance and mechanical strength, while having a trade-off relationship with these physical properties (cold resistance, flexibility, bendability, impact resistance, layability, workability) A power cable with an insulating layer made of an insulating material that is excellent in performance, etc. Background technique [0002] A typical power cable may include a conductor and an insulating layer surrounding the conductor, an inner semiconducting layer between the conductor and the insulating layer, an outer semiconducting layer surrounding the insulating layer, and an outer semiconducting layer surrounding the outer The sheath layer of the semiconductive layer, etc. [0003] In recent years, along with increased power demand, it is necessary to develop large-capacity cables, and for this reason, an insulating material f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/17H01B9/02H01B13/00H01B13/06H01B3/30
CPCH01B3/441C08L23/12H01B3/28C08L23/10C08L2207/02C08L23/16H01B7/02H01B7/17H01B9/027H01B13/0016H01B13/06H01B3/307C08L2203/206C08L2205/03
Inventor 赵荣银柳益铉金永镐
Owner LG CABLE LTD (KR)