Flame retardant power supply electric wire
A wire and power supply technology, applied in the field of wires, can solve the problems of short service life, poor heat insulation, and cables are not resistant to flame baking, etc., and achieve the effect of enhancing service life and excellent flame retardant performance.
Inactive Publication Date: 2015-03-11
ZHEJIANG HEADWAY COMM EQUIP
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Problems solved by technology
Most of the traditional cables adopt structures with poor heat insulation, which is not high enough for the flame temperature
Therefore, when a fire occurs or is affected by high temperature, this type of cable is not resistant to flame baking, and it is difficult to isolate the flame.
Therefore, the flame is easy to burn these protective layers, so that the cable is directly burned by the flame, causing the cable to not work normally, and the ordinary cable has insufficient tensile strength, is easily damaged by stretching, has a short service life, and will release a lot of smoke when burning and toxic and harmful gases, affecting the rescue and atmospheric environment
At present, in hospitals, hotels, large gymnasiums, entertainment venues, coal mines and other places, traditional insulated wires can no longer meet the space and weight requirements of these places
Method used
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Embodiment Construction
[0011] Such as figure 1 As shown, it is a preferred embodiment 1 of a flame-retardant power supply wire of the present invention, including a core and a protective sheath 1 covering the core, and the core is an electric unit and a filling rope 3 twisted together The electrical unit includes a bare metal wire 4 and an insulating layer 5 covering the bare metal wire 4, and the protective sheath 1 is a flame-retardant polyvinyl chloride sheath. The flame-retardant polyvinyl chloride material is used as the protective sheath 1, so that the wire has excellent flame-retardant performance.
[0012] A glass fiber braided layer 2 is arranged between the flame-retardant polyvinyl chloride sheath 1 and the wire core. Not only can achieve the effect of flame retardancy, but also make the wire have the performance of anti-stretch, and strengthen the service life of the wire.
[0013] The insulating layer 5 is a polyperfluoroethylene insulating layer. The insulating layer 5 of the electr...
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The invention relates to a flame retardant power supply electric wire. The flame retardant power supply electric wire comprises a wire core and a protective cover wrapped up the wire core, the wire core is a conductor formed by winding an electrical unit and filling strands together, the electrical unit comprises metal bare wires and insulating layers wrapped up the metal bare wires, the protective cover is a flame retardant polyvinyl chloride protective cover, a fiberglass braided layer is arranged between the flame retardant polyvinyl chloride protective cover and the wire core, and the insulating layers are fluorinated ethylene propylene insulating layers. According to the flame retardant power supply electric wire, the electric wire has good flame retardancy due to the facts that flame retardant polyvinyl chloride materials are utilized as the protective cover and the fluorinated ethylene propylene insulating layers as the insulating layers wrapped up the metal bare wires. The tensile strength and elongation of the insulating layers are superior to common rubbers. The fiberglass braided layer is arranged between the protective cover and the wire core, flame retardant effect is reached, the electric wire is stretch-resistant, and service life of the electric wire is prolonged.
Description
technical field [0001] The invention belongs to the technical field of wires, and in particular relates to a flame-retardant power wire. Background technique [0002] With the rapid development of power industry and urban construction, various industries have higher and higher requirements for cables. Most of the traditional cables adopt structures with poor heat insulation, which is not high enough for the flame temperature. Therefore, when a fire occurs or is affected by high temperature, this type of cable is not resistant to flame baking, and it is difficult to isolate the flame. Therefore, the flame is easy to burn these protective layers, so that the cable is directly burned by the flame, causing the cable to not work normally, and the ordinary cable has insufficient tensile strength, is easily damaged by stretching, has a short service life, and will release a lot of smoke when burning And toxic and harmful gases, affecting the rescue and atmospheric environment. A...
Claims
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IPC IPC(8): H01B7/295H01B7/04H01B7/18H01B3/44H01B7/02H01B7/17
Inventor 费勇荆人杰应思远蔡鹏飞王俊韩迅蒋志忠荆元明
Owner ZHEJIANG HEADWAY COMM EQUIP