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Polyvinyl chloride insulating multi-core power cable

A power cable and polyvinyl chloride technology, which is applied in the direction of insulated cables, power cables with shielding layer/conductive layer, insulated conductors, etc., can solve the problems of increased design, poor structural stability, and easy to burn, so as to improve the service life. Improves shielding properties and prevents expansion and combustion effects

Inactive Publication Date: 2013-09-25
WUXI NEW SUNSHINE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing ordinary PVC insulated power cables have problems of poor structural stability and flammability, which adds a certain degree of difficulty to the design of PVC insulated power cables, so the safety level of electrical lines and the flame retardancy of cables are getting worse People are paying more and more attention to it, and the flame retardancy of cables has become a comprehensive development direction of the cable industry.

Method used

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  • Polyvinyl chloride insulating multi-core power cable

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Embodiment Construction

[0010] Such as figure 1 As shown, a polyvinyl chloride insulated multi-core power cable according to the present invention includes a cable core, and a filling layer 3 is arranged in the gap of the cable core, and the inner liner 4 is extruded outside the cable core, and the inner liner 4 is outer Braided armor layer 5, the outermost layer of the cable core is extruded with an outer sheath 6; the cable core is formed by twisting three fan-shaped insulated wire cores and one circular insulated wire core. The sector-shaped insulated core has the same structure as the round insulated core, and is composed of a conductor 1 and an outer insulating layer 2 covering the conductor 1 .

[0011] The aforementioned armor layer 5 is a steel wire braided structure or a steel strip structure.

[0012] There are many specific application approaches of the present invention, and the above description is only a preferred embodiment of the present invention. It should be pointed out that for t...

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Abstract

The invention discloses a polyvinyl chloride insulating multi-core power cable which comprises a cable core, a filler layer is arranged in a gap position of the cable core, a lining layer wraps the cable core in a squeezing mode, an armor layer is knitted outside the lining layer, an outer protective sleeve wraps the outmost layer of the cable core in a squeezing mode, and three fan-shaped insulating wire cores and one circular insulating wire cores are twisted to form the cable core. The polyvinyl chloride insulating multi-core power cable is stable in structure, strong in reliability, good in fire resistance, long in service life and suitable for places where the laying density degree is high, such as power stations, metros, tunnels, high-rise buildings, large-scale industrial and mining enterprises, oil fields and coal mines.

Description

technical field [0001] The invention relates to the field of wires and cables, in particular to a polyvinyl chloride insulated multi-core power cable. Background technique [0002] Power cables are divided into several varieties according to their main characteristics such as scope of use, structural characteristics and performance requirements, and polyvinyl chloride insulated power cables are one of them. PVC insulated power cables are mainly laid indoors, in tunnels and pipelines, and can also be laid underground. The existing ordinary PVC insulated power cables have problems of poor structural stability and flammability, which adds a certain degree of difficulty to the design of PVC insulated power cables, so the safety level of electrical lines and the flame retardancy of cables are getting worse People are paying more and more attention to it, and the flame retardancy of cables has become a comprehensive development direction of the cable industry. Contents of the i...

Claims

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Application Information

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IPC IPC(8): H01B7/295H01B7/29H01B7/22H01B9/02
Inventor 董建深魏瑞娜贺云芳刘永伟
Owner WUXI NEW SUNSHINE CABLE
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