Nuclear grade cable
A kind of cable, nuclear-grade technology, applied in the field of nuclear-grade cables, can solve the problem of not being able to meet the safety requirements of nuclear power plants, etc., and achieve the effect of organic unity of flame retardant performance, reasonable structure and novel materials
Inactive Publication Date: 2013-09-25
江苏赛特电气有限公司
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Problems solved by technology
At present, ordinary nuclear-grade cables can no longer meet the safety requirements of nuclear power plants, and it is imperative to develop new nuclear-grade cables
Method used
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Embodiment Construction
[0007] Such as figure 1 As shown, the present invention is provided with three wire cores 1 twisted with each other, and a wrapping cable layer 2, a wrapping copper tape layer 3, an oxygen barrier layer 4, and a halogen-free wrapping layer are sequentially arranged on the outside of the twisted wire core 1. 5 and an outer sheath 6; a filling layer 7 is arranged between the stranded wire core 1 and the wrapping cable layer 2; each wire core 1 includes an oxygen-free copper wire conductor 8, and the oxygen-free copper wire conductor 8 is outside The inner insulation layer 9, the outer insulation layer 10, the wrapping polyester tape 11 and the longitudinal wrapping aluminum-plastic composite tape 12 are arranged in sequence.
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The invention relates to the field of wire and cable manufacturing technology, in particular to a nuclear grade cable. The nuclear grade cable comprises three thread cores which are mutually intertwisted. A winding wrapping cable forming layer, a winding copper belt layer, an oxygen insulation layer, a halogen-free winding wrapping layer and an outer protection layer are sequentially arranged on the outer side of the intertwisted core. A filling layer is arranged between the intertwisted thread core and the winding wrapping cable forming layer. Each thread core comprises an oxygen copper wire guide body. An inner insulation layer, an outer insulation layer, a winding wrapping polyester belt and a longitudinal aluminum plastic compound belt are sequentially arranged on the outer side of the oxygen copper wire guide body. The nuclear grade cable is reasonable in structure and novel in material, better realizes organic unity of electronic performance, flame retardant property and mechanical performance through the adoption of the double-layer insulation compound structure and insulation materials with special media.
Description
technical field [0001] The invention relates to the technical field of wire and cable manufacturing, in particular to a nuclear grade cable. Background technique [0002] A nuclear-grade cable should not only have the general characteristics of ordinary cables, but also have the properties of crack resistance, low smoke, halogen-free, flame retardant, and long life, as well as specific environmental resistance (such as radiation resistance, LOCA resistance, etc.) sex). At present, ordinary nuclear-grade cables can no longer meet the safety requirements of nuclear power plants, and it is imperative to develop new nuclear-grade cables. Contents of the invention [0003] The object of the present invention is to provide a nuclear grade cable for nuclear power plants aiming at the deficiency of common nuclear cable technology. [0004] The present invention comprises three wire cores twisted with each other, and a wrapping cable layer, a wrapping copper tape layer, an oxyg...
Claims
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Inventor 牛瑞江朱有文张婷
Owner 江苏赛特电气有限公司