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Cross-linked polyethylene insulated multi-core coaxial power cable

A cross-linked polyethylene and power cable technology, applied in the direction of insulated cables, coaxial cables, insulated conductors, etc., can solve the problems of cable electrical performance degradation, easy displacement of cores, easy core breakage, etc. Strong fire resistance, not easy to break

Inactive Publication Date: 2016-08-24
JIANGSU ZHUYING SPECIAL CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, when the existing cables are easily squeezed and compressed during laying, the cores are easily broken and the cores are prone to displacement, which greatly reduces the electrical performance of the cables.

Method used

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  • Cross-linked polyethylene insulated multi-core coaxial power cable

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Embodiment Construction

[0017] Such as figure 1 As shown, a cross-linked polyethylene insulated multi-core coaxial power cable according to the present invention includes a cable core, and PVC insulating material 6 is filled in the gap of the cable core; an outer conductor 7 is arranged outside the cable core, and the The outer conductor is made of multiple aluminum alloy monofilaments 8; the outer conductor is wrapped with a rock wool insulation layer 9 with a thickness of 0.48-0.9mm, and the rock wool insulation layer is extruded with a thickness of 1-2cm Aluminum sheath 10; the cable core is made of three insulated wire cores and a triangular reinforcing rib 1 connecting the three insulated wire cores; It consists of a 2mm cross-linked polyethylene insulating layer 4 and a shielding layer 5 with a thickness of 2-3mm extruded outside the cross-linked polyethylene insulating layer.

[0018] The triangular reinforcing rib 1 is composed of a circular insulating plastic core and three plastic brackets...

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Abstract

The invention discloses a cross-linked polyethylene insulated multi-core coaxial power cable, which comprises a cable core, wherein a gap of the cable core is filled with a PVC (polyvinyl chloride) insulating material; an outer conductor is arranged outside the cable core, and is lapped by a rock wool heat insulation layer with the thickness of 0.48 to 0.9 mm; the rock wool heat insulation layer is extruded by an aluminum sheath with the thickness of 1 to 2 cm; the cable core is formed by three insulated wire cores and a triangular reinforcing rib for connecting the three insulated wire cores. The cross-linked polyethylene insulated multi-core coaxial power cable has the advantages of high insulativity, flame resistance, strong tensile strength and the like.

Description

technical field [0001] The invention relates to the field of power cables, in particular to a cross-linked polyethylene insulated multi-core coaxial power cable. Background technique [0002] XLPE insulated cables significantly improve the performance of PVC insulated cables. The long-term allowable operating temperature of XLPE insulated cables can reach 90°C. In order to maintain the elastic state at a temperature of 130°C. XLPE insulated cables are widely used because of their light weight, small diameter, convenient installation and laying, and simple accessory joints. However, XLPE insulated power cables are easily corroded or mechanically damaged during use, bitten by mice or eaten by insects and ants, thus affecting their power transmission; and most wires will produce a lot of highly toxic smoke when burned , causing significant loss of life and property, and bringing great difficulties to rescue work, especially when used in a relatively closed environment, such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/295H01B7/29H01B7/18H01B9/04
CPCH01B7/02H01B7/18H01B7/29H01B7/295H01B9/04
Inventor 杨凤霞余新强毛林林
Owner JIANGSU ZHUYING SPECIAL CABLE
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