Shielding layer structure of flame-retardant cable and production process thereof

A technology of flame retardant cables and shielding layers, applied in power cables with shielding layers/conducting layers, insulating cables, insulating conductors/cables, etc. It can achieve the effect of reducing insulation pollution, small deformation and simple structure
CN101609732AInactive Publication Date: 2009-12-23上海德力西集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海德力西集团有限公司
Publication Date
2009-12-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a shielding layer structure of a flame-retardant cable, comprising a conductor shielding layer and an insulation shielding layer which are separately jointed with the inner and outer walls of the insulation layer of the flame-retardant cable. The shielding layer structure has the advantages that the conductor shielding layer and the insulation shielding layer are both chlorinated polyethylene rubber shielding layer, the conductor shielding layer is extrusion shielding layer, the insulation shielding layer has a combined structural style which combines extrusion shielding and woven metal / fiber together, and coextrusion continuous vulcanization molding is carried out on the conductor shielding layer, insulation layer and the insulation shielding layer. The invention also provides a production process of the shielding layer structure of the flame-retardant cable. The shielding layer structure of the invention has ingenious design, simple structure, and reliable and safe use, thus being able to change the structure of the electric field, homogenizing the electric field and lowering the isolate pollution; the shielding layer structure is applicable to the shielding layer structure of mine cables.
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Description

technical field

[0001] The invention relates to the technical field of cables, in particular to the technical field of flame-retardant cables, in particular to a shielding layer structure of a flame-retardant cable and a production process thereof. Background technique

[0002] Flame-retardant cables for coal mines refer to wire and cable products for ground equipment and underground equipment dedicated to the coal mining industry. The environmental conditions of cables used in coal mines are very complicated, the working conditions are very harsh, and the area where gas and coal dust gather is very dangerous, which is easy to cause explosion, causing serious personal casualties and property losses. Therefore, higher requirements are put forward for the safety characteristics of cables used in coal mines.

[0003] However, the conductor surface of the current mine cable is not smooth and round, which is easy to cause tip discharge, resulting in imperfect electric field stru...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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