Solar electric heating tubes are electrical heating equipment, so safety should be emphasized when using them.
After all, accidents caused by electricity are very serious. The following introduces the working environment requirements and precautions for solar electric heating tubes.
1. The component is allowed to operate under the following conditions.
A. The relative humidity of the air shall not exceed 95%, and there shall be no explosive or corrosive gases.
B. The working voltage should not exceed 1.1 times the rated value, and the casing should be effectively grounded.
C. Insulation resistance ≥ 1M Ω Dielectric strength: 2KV/1min.
2. Electric heating tubes should be properly positioned and fixed, and the effective heating area must be fully immersed in liquid or metal solids, and empty burning is strictly prohibited. When scale or carbon deposits are found on the surface of the pipe, they should be promptly removed and reused to avoid affecting heat dissipation and shortening the service life.
3. When heating fusible metals or solid nitrate, alkali, asphalt, paraffin, etc., the operating voltage should be lowered first, and the rated voltage can only be raised after the medium melts.
4. When heating air, the components should be arranged in a cross and uniform manner to provide good heat dissipation conditions and allow the flowing air to be fully heated.
