Low-smoke halogen-free flame-resistant type-A stainless steel armored cable and preparation method thereof
An armored cable and stainless steel technology, applied in the field of low-smoke, halogen-free flame-retardant class A stainless steel armored cables, cable structure and preparation, can solve the problems of good flame retardancy, high mechanical strength, and poor mechanical properties. Achieve the effects of good flame retardancy, good corrosion resistance and strong mechanical properties
Inactive Publication Date: 2012-08-15
BAOSHENG SCI & TECH INNOVATION
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Problems solved by technology
[0002] Traditional steel tape armored cables and aluminum-sheathed corrugated armored cables can ensure the rodent-proof, bending, moisture-proof, anti-corrosion and mechanical shock resistance of communication cables, but they cannot meet the high-safety occasions of 35kV and below in the subway power supply system High-level (Class A) flame retardant requirements
In addition, the sheath of traditional armored cables either has high mechanical strength and poor flame retardancy; to play
Method used
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[0024] TR type copper single wire twisted into conductor 1, conductor 1 is extruded with conductor shielding layer 2, conductor shielding layer 2 is extruded with cross-linked polyethylene insulating layer 3, insulating layer 3 is extruded with aluminum-plastic composite tape insulation shielding layer 4, insulated The shielding layer 4 is wrapped with a copper tape 6 to form an insulated shielding core. Color strips 5 are provided on the copper tape 6 of the insulated shielding wire core.
[0025] Twisting the insulated and shielded wire cores into a cable, the gaps between the cable cores are provided with inorganic fiber fillers 7 to ensure the roundness of the cable core. The cable core is wrapped with non-woven fabric wrapping tape 8, and the wrapping tape is wrapped with scraping rubber cloth with a buffer layer 9, and the buffer layer 9 is provided with corrugated stainless steel 10, and the corrugated stainless steel 10 is longitudinally wrapped and welded on the buffe...
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Abstract
The invention discloses a low-smoke halogen-free flame-resistant type-A stainless steel armored cable and a preparation method thereof. The low-smoke halogen-free flame-resistant type-A stainless steel armored cable comprises a cable core and a protective layer, wherein a non-woven cloth wrapping tape is wrapped outside the cable core; a scraping adhesive tape cushion layer is wrapped outside the wrapping tape; embossed stainless steel is arranged outside the cushion layer, and is longitudinally covered and wrapped on the cushion layer by welding; a flame-resistant inner protective layer is wrapped outside an aluminum sheath by extruding, and a cross-linked flame-resistant polyolefin outer protective layer is wrapped outside the inner protective layer by extruding; the cable core is formed by intertwining an insulating shielded wire core, and an inorganic fiber filler is arranged in a gap of the cable core; and the insulating shielded wire core is formed by arranging a conductor shielding layer outside a conductor, wrapping a cross-linked polyethylene insulating layer outside the conductor shielding layer by extruding, arranging an aluminum-plastic composite tape insulating shielding layer outside the insulating layer and wrapping a copper strip outside the insulating shielding layer, and color stripes are arranged on the copper strip. The low-smoke halogen-free flame-resistant type-A stainless steel armored cable has high flame resistance, meets type-A flame resistance requirements, has excellent mechanical shock resistance, has a simple process, and is easy to process and manufacture.
Description
technical field [0001] The invention discloses a cable structure and a preparation method thereof, in particular to a low-smoke, halogen-free, flame-retardant class A stainless steel armored cable, which belongs to the technical field of cable manufacturing. Background technique [0002] Traditional steel tape armored cables and aluminum-sheathed corrugated armored cables can ensure the rodent-proof, bending, moisture-proof, anti-corrosion and mechanical shock resistance of communication cables, but they cannot meet the high-safety occasions of 35kV and below in the subway power supply system High-level (Class A) flame retardant requirements. In addition, the sheath of traditional armored cables either has high mechanical strength and poor flame retardancy; play. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a low-smoke, halogen-free flame-retardant Class A stainless steel armored cable and its preparatio...
Claims
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Login to View More IPC IPC(8): H01B7/17H01B7/22H01B7/295H01B13/22
Inventor 杨泽元房权生董春刘彦军李茁实潘爱梅
Owner BAOSHENG SCI & TECH INNOVATION