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Double layer flame retardation humidity-resistant environment friendly communication cable and production technology therefor

A communication cable, moisture-resistant technology, used in insulated cables, cable/conductor manufacturing, and conductor/cable insulation, etc., to reduce the outer diameter and achieve good results

Inactive Publication Date: 2017-06-20
HEBEI HUATONG WIRES & CABLES GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Communication cables must have good mechanical and physical properties, be able to withstand various mechanical stresses, and have no deterioration in electrical properties in harsh environments, so as to ensure long-term reliable work. However, it is difficult for existing communication cables to meet the above requirements

Method used

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  • Double layer flame retardation humidity-resistant environment friendly communication cable and production technology therefor

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Embodiment Construction

[0020] Below in conjunction with the accompanying drawings, the present invention will be further described through implementation.

[0021] A double-layer flame-retardant, moisture-resistant and environmentally friendly communication cable, comprising a tinned annealed copper conductor 1, a high-temperature-resistant GRPP tape 2, a low-smoke, halogen-free flame-retardant polyolefin insulation 3, a braided cotton layer 4, and a flame-retardant paint coating 5. The tinned annealed copper conductor 1 is composed of 47 tinned copper wires with a diameter of 0.50 mm twisted to form a strand strand, and the twisting direction is left; the tinned annealed copper conductor is formed by twisting 19 strands of wire. 1. There is a bunch of strands in the center, 6 strands of strands are twisted in the inner layer, the twisting direction of the inner layer is right, and 12 strands of strands are twisted in the outer layer, and the twisting direction of the outer layer is left; tinned Sof...

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Abstract

The invention relates to a double layer flame retardation humidity-resistant environment friendly communication cable and production technology therefor and belongs to the technical field of communication cables. According to a technical solution for the communication cable, a tinned soft copper conductor (1) is formed by twisting 19 bunched and braided wires, a bunched and braided wire is arranged at the center, six bunched and braided wires are twisted on an inner layer in a right direction, 12 bunched and braided wires are twisted on an outer layer in a left direction, a high temperature resistant GRPP band (2) is wrapped around the tinned soft copper conductor (1), a low smoke zero halogen flame retardation polyolefin insulation part (3) is wrapped around the high temperature resistant GRPP band (2) in an extruded manner, a woven cotton thread layer (4) which is woven with cotton threads is arranged on an outer side of the low smoke zero halogen flame retardation polyolefin insulation part (3), and a flame retardation paint coating (5) is arranged on the woven cotton thread layer. According to the communication cable, a double layer flame retardation structure is formed by the low smoke zero halogen flame retardation polyolefin insulation part and flame retardation paint, a humidity-resistant function can be fulfilled via the flame retardation paint, good double layer flame retardation effects can be exerted, an external diameter of the electric cable can be reduced, and requirements for good mechanical and physical properties of the communication cable can be met.

Description

technical field [0001] The invention relates to a double-layer flame-retardant, moisture-resistant and environment-friendly communication cable and a production process thereof, belonging to the technical field of communication cables. Background technique [0002] The use occasions of communication cables are complex, and the performance requirements for cables are extremely strict. The mechanical properties of communication cables include bending performance, tensile resistance, compression resistance, vibration resistance, impact resistance and wear resistance. Physical properties include size, weight, flame retardancy, heat resistance, cold resistance, sunlight aging resistance, corrosion resistance, moisture resistance, salt spray resistance, mold resistance, etc. Communication cables must have good mechanical and physical properties, be able to withstand various mechanical stresses, and have no deterioration in electrical properties in harsh environments, thereby ensu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/02H01B5/08H01B7/29H01B7/295H01B7/28H01B13/02H01B13/10H01B13/14H01B13/24H01B13/26
CPCH01B1/026H01B5/08H01B7/28H01B7/29H01B7/295H01B13/02H01B13/10H01B13/14H01B13/24H01B13/26
Inventor 纪艳丽张书军张宝龙王振彪赵文明窦丽梅王怀安石玉梁张红军高天修薛林
Owner HEBEI HUATONG WIRES & CABLES GRP CO LTD
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