Cross-linked polyethylene insulated flame-retardant power cable
A cross-linked polyethylene, power cable technology, applied in the direction of insulated cables, insulators, insulated conductors, etc., can solve the problems of affecting the appearance and flame retardant efficiency of cables, prone to creases, poor cable bending, etc., and achieve good mechanical properties. , Increase the service life and reduce the effect of sliding displacement
Inactive Publication Date: 2018-04-20
安徽庆华电缆有限公司
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Problems solved by technology
[0002] Traditional cables use a lot of metal for flame retardant, but too many metal elements will lead to poor bending of the cable, prone to creases, affecting the appearance and flame retardant efficiency of the cable; later improvement uses PVC, PVC is cheap and has good flame retardant performance , but when PVC burns, it will release a large amount of toxic gas, which is now banned. Therefore, we should continue to find solutions for cable flame retardancy
Method used
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[0009] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.
[0010] Such as figure 1 As shown, a cross-linked polyethylene insulated flame-retardant power cable includes a cable core, the cable core is composed of a plurality of annealed copper conductors 3, and the outer part of the copper conductor 3 in the middle is extruded and wrapped with an aluminum-plastic composite tape for insulation Layer 5, the exterior of the aluminum-plastic composite tape insulation layer 5 is extruded with a metal armored flame-retardant layer 4, and the exterior of the metal armored flame-retardant layer 4 is stranded with several wires wrapped by the aluminum-plastic composite tape insulation layer 5 The copper conductor 3, the outer aluminum-plastic composite tape insulation layer 5 is wrapped with a non-woven fabric layer 2 for providing buffer, and the non-wo...
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The invention relates to the field of cables, specifically a cross-linked polyethylene insulated flame-retardant power cable. The cable comprises a cable core, and the cable core consists of a plurality of annealed copper conductors, wherein the central copper conductor is wrapped by an aluminum plastic composite belt insulating layer in an extruded manner. The aluminum plastic composite belt insulating layer is wrapped by a metal armored flame-retardant layer in an extruded manner, and the exterior of the metal armored flame-retardant layer is provided with the plurality of copper conductors,wrapped by the aluminum plastic composite belt insulating layer, in a twisted manner. The external aluminum plastic composite belt insulating layer is wrapped by a non-woven fabric layer for buffering, and the non-woven fabric layer is wrapped by a flame-retardant butyronitrile layer in an extruded manner, wherein the flame-retardant butyronitrile layer is wrapped by a cross-linked polyethylene insulating layer in an extruded manner. The cross-linked polyethylene is used for making an insulating sheath, is a halogen-free flame retardant material, and is good in mechanical performances. The edge of the metal armored flame-retardant layer is designed to be uneven, thereby facilitating the twisting, reducing the sliding displacement, and providing internal support for resisting an external mechanical force.
Description
technical field [0001] The invention relates to the field of cables, in particular to a cross-linked polyethylene insulated flame-retardant power cable. Background technique [0002] Traditional cables use a lot of metal for flame retardant, but too many metal elements will lead to poor bending of the cable, prone to creases, affecting the appearance and flame retardant efficiency of the cable; later improvement uses PVC, PVC is cheap and has good flame retardant performance , but PVC will emit a large amount of toxic gas when it burns, and its use is now prohibited. Therefore, we should continue to find solutions for cable flame retardancy. Contents of the invention [0003] In order to solve the above problems, the present invention proposes a cross-linked polyethylene insulated flame-retardant power cable. [0004] A cross-linked polyethylene insulated flame-retardant power cable, including a cable core, the cable core is composed of a plurality of annealed copper cond...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01B7/18H01B7/02H01B7/295H01B3/44H01B7/20
CPCH01B7/1875H01B3/443H01B7/0258H01B7/20H01B7/295
Inventor 陶成刚
Owner 安徽庆华电缆有限公司