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Several safety problems of high temperature resistant mica board heating wire

Several safety problems of high temperature resistant mica board heating wire

1. Because the heating wire adopts the adhesive process, the metal heating wire and the high temperature resistant mica board have different expansion coefficients after heating, and they are simply layered. Together, the glue volatilizes under the high temperature state and will simply fall in the future. The heating wire is interlaced and simply short-circuited. . The product is completely mechanically connected, with no glue technology, high temperature resistance, not easy to fall, and safe.

2. The local current of the heating wire in the corner is too large, and the temperature can reach 500-700 degrees. risk. The product is surface-like heating, uniform temperature, and not easy to melt.

3. Because the heating wire is linear heating, it is difficult to ensure the uniformity of heating. The surface temperature of the heating wire reaches 500 degrees. Therefore, the heating wire mica heating plate will be baked on the surface of the high temperature mica board after a period of time. The black impression is beautiful. If the external mica is exposed to this kind of high temperature for a long time, it can affect the service life of the mica base material.

4. In case of extreme safety, the heating wire will first burn a large hole in the mica layer, and will always be energized and heated at the super-rated power until the heating wire is completely blown. This process may ignite wood floors, carpets and other flammable materials . In extreme conditions, such as the use of abnormal voltage, the electric heating film mica heating plate will be personally disconnected, resulting in a power drop, or the heating element will self-destruct and no longer generate heat, which will not cause fire and other risks.

5. The mica heating plate uses a series circuit design. If one point is damaged, the entire electric heater is scrapped, and the product uses a full parallel circuit design. If it shows extreme conditions, even if a hot piece is damaged, it will not Consumers can’t feel the impact on other hot parts operations. From the perspective of several years of shopping malls, the repair rate of manufacturers of electric heating films has only reached 0.2%.

6. The mica heating plate has a large starting current, usually 3-4 times the rated current. It also heats up in the junction box. Therefore, the electric heating plate simply presents the appearance of firing and firing in the outlet box, even in the products of some supporting manufacturers. It presents the appearance of a big black hole burning at the junction box. The starting current of the product is small, usually about 0.8 times the rated current, the current is stable, and the leakage current is usually less than 0.025mA.

7. Because of the specific gluing process of the heating wire, the glue will turn into powder at high temperature and smelt an unpleasant smell, and the smell has been tested to be rich in formaldehyde, and the product is a completely glue-free process, tasteless and environmentally friendly. There are SGS environmental protection statements.