1. Components are allowed to work under the following conditions:
A. The relative humidity of air is not more than 95% and there are no explosive and corrosive gases. (except explosion-proof heaters)
B. The working voltage shall not be greater than 1.1 times the rated value and the enclosure shall be effectively grounded.
C. Insulation resistance ≥ 1MΩ Dielectric strength: 2KV/1min.
2. The electric heating pipe should be positioned and fixed. The effective heating area must be completely immersed in liquid or metal solids. When scale or carbon is found on the surface of the pipe, it should be removed and reused in a timely manner so as not to affect the heat dissipation and shorten the service life.
3. When heating fusible metal or solid-state nitrate, alkali, bitumen, paraffin, etc., the voltage should be reduced first. After the medium is melted, it can rise to the rated voltage.
4. When the air is heated, the components should be evenly arranged, so that the components have good heat dissipation conditions, so that the flowing air can be fully heated.
5, when heating nitrate salt should consider safety measures to prevent explosion accidents.
6. The wiring part should be placed outside the insulation layer to avoid contact with corrosive, explosive medium and moisture; the lead wire should be able to withstand the temperature and heating load of the wiring part for a long time, and the wiring screw should be avoided when it is fastened.
7. The components should be stored in a dry place. If the insulation resistance is lower than 1MΩ for a long time, it can be dried in an oven at about 200°C, or the voltage and electric heating can be reduced until the insulation resistance is restored.
8. The magnesium oxide powder at the outlet end of the electric heating pipe shall be protected from infiltration of pollutants and moisture in the place of use to prevent leakage accidents.
A. The relative humidity of air is not more than 95% and there are no explosive and corrosive gases. (except explosion-proof heaters)
B. The working voltage shall not be greater than 1.1 times the rated value and the enclosure shall be effectively grounded.
C. Insulation resistance ≥ 1MΩ Dielectric strength: 2KV/1min.
2. The electric heating pipe should be positioned and fixed. The effective heating area must be completely immersed in liquid or metal solids. When scale or carbon is found on the surface of the pipe, it should be removed and reused in a timely manner so as not to affect the heat dissipation and shorten the service life.
3. When heating fusible metal or solid-state nitrate, alkali, bitumen, paraffin, etc., the voltage should be reduced first. After the medium is melted, it can rise to the rated voltage.
4. When the air is heated, the components should be evenly arranged, so that the components have good heat dissipation conditions, so that the flowing air can be fully heated.
5, when heating nitrate salt should consider safety measures to prevent explosion accidents.
6. The wiring part should be placed outside the insulation layer to avoid contact with corrosive, explosive medium and moisture; the lead wire should be able to withstand the temperature and heating load of the wiring part for a long time, and the wiring screw should be avoided when it is fastened.
7. The components should be stored in a dry place. If the insulation resistance is lower than 1MΩ for a long time, it can be dried in an oven at about 200°C, or the voltage and electric heating can be reduced until the insulation resistance is restored.
8. The magnesium oxide powder at the outlet end of the electric heating pipe shall be protected from infiltration of pollutants and moisture in the place of use to prevent leakage accidents.
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