Glass fiber tube is used for insulation protection in PTC heater.
First, let's understand what PTC heater is.
PTC heater, also called PTC heater, is composed of PTC ceramic heating element and aluminum tube. PTC heater has the advantages of small thermal resistance and high heat exchange efficiency. It is an automatic electric heater with constant temperature and power saving. The outstanding feature of PTC heater is safety. Under any application condition, it will not produce the phenomenon of "redness" on the surface of electric heating tube heater, which will cause scald, fire and other safety hazards. The main use temperature of PTC heater is generally less than 200 degrees, although it is not The safety accident of Taihui products, however, in order to ensure the safety and relevant international standards, it is necessary to cover a layer of insulating sleeve for safety protection.
The temperature resistance grade of fiberglass pipe is as high as 200 ℃, and the temperature resistance grade is high. At the same time, the voltage resistance grade of fiberglass pipe also belongs to the middle and upper reaches in the insulating protective sleeve. The voltage resistance grade of fiberglass pipe ranges from 1.5kV to 7kv, which is light in texture and wear-resistant and corrosion-resistant is the first choice of high-temperature insulating sheath.
PTC heater is common in hot water kettle, foot bath and other electrical appliances. The surface insulating sleeve is mostly glass fiber tube visible glass fiber tube widely used in maintenance and dismantling.