Self-regulating electric tracing band specially for fire fighting
An electric heating cable and self-limiting temperature technology, applied in the direction of heating element material, heating element shape, etc., can solve the problems of large power output, poor safety performance, and large starting current of power distribution facilities, and achieve small starting current and high tensile strength. Good performance, improved service life and safety performance
Inactive Publication Date: 2017-01-11
WUHU XUHUI ELECTRIC NEW MATERIAL
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Problems solved by technology
Therefore, new problems have emerged in new occasions. As a self-limiting temperature electric heating cable for fire-fighting pipeline heating in the field of commercial buildings, due to the use of the formula in the 1990s, the product has a large starting current and low life. Poor safety performance, large power output required for power distribution facilities, etc., so it is urgent to develop a professional self-limiting temperature heating cable for fire protection
Method used
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[0026] refer to figure 1 , figure 1 It is a structural schematic diagram of a specific embodiment of the present invention.
[0027] Such as figure 1 As shown, a self-limiting temperature electric heating cable for fire protection, including two copper core busbars 1 arranged in parallel, a heating core layer 2 connecting the two copper core busbars 1 by extruding, wrapped in the heating core layer 2, the insulating layer 3 outside the insulating layer 3, the shielding layer 4 wrapped outside the insulating inner sheath 3, and the insulating outer sheath 5 wrapped outside the shielding layer 4, and the two copper core busbars 1 are tin-plated Round copper wire; the shielding layer 4 is braided by aluminum-magnesium alloy wire; the insulating inner sheath 3 and the insulating outer sheath 5 are made of weather-resistant radiation cross-linked polyethylene material; the heating The core layer 2 is made of cold-resistant and anti-aging PTC heating material, and the cold-resist...
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Abstract
The invention discloses a self-regulating electric tracing band specially for fire fighting, which comprises two parallelly-arranged copper core buses, a heating core layer connected with the two copper core buses through extrusion, an insulated layer coating the heating core layer, a shielding layer coating the insulated layer, and an insulated outer sheath coating the shielding layer, wherein the heating core layer is made of a cold-resistance anti-aging PTC heating material; and the cold-resistance anti-aging PTC heating material is made by the following raw materials, in percentage by mass, metallocene polyethylene, high density polyethylene, an ethylene copolymer thermoplastic elastomer, carbon fiber, carbon black, a benzotriazole light stabilizer, a hindered phenol antioxidant, decabromodiphenylethane, diisooctyl ortho-phthalate, dicumyl peroxide and a nucleating transparent agent zc-3. According to the self-regulating electric tracing band specially for fire fighting, the use effects of the self-regulating electric tracing band in heat tracing of a fire fighting pipeline can be improved.
Description
technical field [0001] The invention relates to the technical field of electric heating cables, in particular to a self-limiting temperature electric heating cable for fire protection. Background technique [0002] Electric heating cable is a new high-tech product. Since it entered the application field in the 1970s, self-limiting electric heating cable has become the most common type of electric heating cable in the world today. They can be widely used in the transportation of liquid objects in pipelines, antifreeze and heat preservation of tanks, maintenance of process temperature, heating of roads, ramps, crosswalks, eaves and floors, etc. Inside the self-regulating electric heating cable, PTC polymer material for heating is distributed between two conductive cores, and its exterior is composed of polymer inner sheath, metal shielding net and polymer outer sheath. When the power is turned on, the internal PTC polymer material is heated and expanded, the resistance become...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H05B3/56H05B3/10H05B3/12H05B3/18C08L23/06C08L23/08C08K13/04C08K7/06C08K3/04C08K5/12
CPCH05B3/56C08L23/06C08L2205/02C08L2205/025C08L2205/03C08L2207/062H05B3/10H05B3/12H05B3/18C08L23/08C08K13/04C08K7/06C08K3/04C08K5/12
Inventor 鲁旭波
Owner WUHU XUHUI ELECTRIC NEW MATERIAL