High-flame-retardant high-insulativity fireproof cable
A high-insulation, fire-resistant cable technology, applied in the direction of insulated cables, insulated conductors, cables, etc., can solve the problems of inability to achieve rapid heat dissipation, cable aggregation, etc., and achieve the effect of increasing heat dissipation and good flame retardant performance.
Pending Publication Date: 2022-05-24
JIANGSU HENGHUI ELECTRICAL
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Problems solved by technology
In actual use, the flame retardancy of the cable is also related to the heat generated in the actual use of the cable. When passing through a large cable, the cable is often unable to achieve rapid heat dissipation due to heat accumulation, resulting in the risk of burning
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[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
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The invention discloses a high-flame-retardant high-insulativity fireproof cable which comprises an armor layer, an outer flame-retardant layer and an outer wrapping layer in sequence from outside to inside, a plurality of cable cores are arranged in the outer wrapping layer, and each cable core comprises an inner wrapping layer, an inner flame-retardant layer, a shielding layer, an insulating layer and a conductor in sequence from outside to inside; a first inner protection layer is arranged outside the armor layer, a second inner protection layer is arranged outside the first inner protection layer, and an outer sheath is arranged outside the second inner protection layer; the cable is also internally provided with a heat conduction unit and a heat dissipation unit. The cable provided by the invention has a good heat dissipation effect and a good flame retardant effect.
Description
technical field [0001] The present application relates to the field of cables, in particular to a fire-resistant cable with high flame retardancy and high insulation. Background technique [0002] Fireproof cables, the most widely used fireproof cables at this stage are mainly UL series flame-retardant cables and flame-retardant low-smoke halogen-free cables. The test requirements for low-smoke halogen-free cables meet three requirements: 1) flame retardancy requirements: low-smoke halogen-free cables must be flame-retardant; 2) smoke density requirements: low-smoke halogen-free cables must be tested for smoke density Test; 3) Toxicity requirements: There are several current toxicity test methods, such as mouse test and so on. And the level of fire protection requirements of fireproof cables in different occasions is also different. In actual use, the flame retardancy of the cable is also related to the heat generated in the actual use of the cable. When passing through a ...
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IPC IPC(8): H01B7/29H01B7/295H01B7/42
CPCH01B7/295H01B7/29H01B7/428H01B7/426Y02A30/14
Inventor 翁中宇闵宏兵王仕忠乔宝星鲁永伟姜志强
Owner JIANGSU HENGHUI ELECTRICAL
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