There are many kinds of heating cables, so we should choose the types and specifications of heating cables reasonably from specific problems, otherwise it will affect the heating efficiency or initial investment. The heating cable is made of 7-core copper stranded wire, and the insulation is made of modified polypropylene. The sheath material of submersible pump power cable is suitable for oil well heating. Heating the cable reduces the viscosity of crude oil, thus improving the self-injection of oil wells or increasing the oil quantity. What specifically affects the heating is the transmission length and heating power per unit length of the heating cable and whether the use environment contains gases or corrosive substances harmful to the cable.
An alloy made of metals such as copper, nickel, chromium and iron. One conductor of the cable is copper wire, and the other is high-resistance alloy wire, which adopts single solid conductor or stranded wire structure, and the insulation is heat-resistant PVC or silane crosslinked polyethylene. Most of the sheaths are made of heat-resistant or oil-resistant PVC, and it is also required that the sheaths cannot contain harmful metal materials such as lead and cadmium. This kind of cable has high heating power, and can also meet the requirements of users for working voltage, transmission length and heating power. Therefore, it is often used for greenhouse cultivation of plants. Insulating materials are inorganic materials, usually magnesium oxide, but also include other inorganic materials with higher heat resistance. The service life of this kind of heating cable exceeds 100 years, and its working temperature will change according to the use situation. It is widely used to prevent snow on roofs and airport runways.
The characteristics of heating cable, thermoplastic material and polyolefin outer sheath can further enhance its protection performance. High-performance walnut material makes it moisture-proof and corrosion-resistant. Some heating cables can be adjusted by themselves, which is convenient for installation and design. The heating cable has automatic output power and will not burn out due to its own heating. Simple installation, simple maintenance, wide use and no environmental pollution. When using heating cable, pay attention to the cutting of insulation layer. Sometimes, the heating cable is wrapped with insulation layer to prevent heat loss and achieve the purpose of insulation.
During installation, product transportation or use, the heating cable should avoid being squeezed, bent and twisted. Do not touch any conductive substance to avoid short circuit when using heating cable. This paper mainly introduces the types and uses of heating cables.
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