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High-performance cable for construction

A high-performance technology for construction, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of short service life, poor anti-aging performance, etc., and achieve the effect of long service life, good aging resistance, and good moisture-proof effect.

Active Publication Date: 2013-09-18
SHANGDONG HUALING CABLE
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, the cable conductor disclosed in this patent does not adopt double-layer co-extrusion insulation of heterogeneous materials, and has poor anti-aging performance and short service life. It is necessary to replace the circuit about 3 times in a building with a service life of 70 years, which costs a lot of manpower and material resources.

Method used

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  • High-performance cable for construction

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] figure 1 Among them, the cable core includes three stranded insulated core conductors arranged in a low-smoke, halogen-free, flame-retardant filling body 4; the outer wall of each insulated core conductor 1 wraps the inner insulating layer 2 and the outer insulating layer 3 in turn, wherein the inner insulating layer The insulating layer 2 is an irradiation cross-linked polyethylene insulating layer; the outer insulating layer 3 is an irradiation cross-linked low-smoke halogen-free polyolefin insulating layer, the thickness ratio of the inner and outer insulating layers is 1:1. When the ratio is 1:1, the insulation resistance and flame retardant performance of the insulated wire core will achieve the best effect; the heterogeneous insulation is extruded through double-layer co-extrusion to avoid the mixing of air, dust and other impurities betwee...

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Abstract

The invention discloses a high-performance cable for construction. The high-performance cable for construction solves the problem that the existing cable for construction is low in fire resistance, poor in weather resistance, short in service life and the like. The high-performance cable for construction has the advantages of being environmentally friendly, inflaming retarding, waterproof, moistureproof, strong in antijamming capability, excellent in electric performance, long in service life and the like. The high-performance cable for construction structurally comprises a cable core which is composed of a plurality of insulating wire cores arranged in a filling body, each insulating wire core comprises a conductor and a double-layer co-extrusion heterogeneous insulating layer arranged outside the conductor in a pressing and wrapping mode, and the cable core is sequentially wrapped by a wrapping layer, a cable shielding layer, an oxygen separating layer, an armor layer and a cable outer sheath sequentially from inside to outside.

Description

technical field [0001] The present invention relates to a cable, in particular to a high-performance building cable with a service life of 76.2 years at 85°C deduced according to the test method specified in IEC60216-1:2001 and the Arrhenius model. Background technique [0002] At present, most cables used in construction are single-layer insulation, using polyvinyl chloride or cross-linked polyethylene insulation, which has poor electrical stability, poor anti-interference ability, flammable (easy to spontaneous combustion), easy to age, easy to wear and scratch, and is afraid of moisture. When burning, it produces dense smoke and is highly toxic, which poses safety hazards, especially the short service life, which cannot reach the same lifespan as the building, and the replacement cost of the secondary wiring is high, and it leaves a safety hazard to the building, making the building in its thirties And die young. [0003] Chinese patent CN202720937U discloses a hanging t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/17H01B7/18H01B7/22H01B7/295H01B7/02
Inventor 潘茂龙李广杰范晓玲翟孟刚
Owner SHANGDONG HUALING CABLE
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