The product quality issues of electric heaters themselves and unreasonable practical work by users may cause leakage accidents. Duct electric heater manufacturers summarize as follows.
1. The electric heating tube of the duct electric heater is fixed and immovable. The reasonable heating plate must be completely immersed in liquid or metal solid, and dry burning is prohibited. If water or carbon contamination is found on the tube surface, clean and reuse them immediately to avoid affecting heat dissipation.
2. When heating air, the components should be evenly arranged in a cross pattern to ensure good heat dissipation conditions, so that the flowing air can be fully heated.
3. For heating easily fusible metals or solid salts, alkalis, leaching residues, paraffin, etc. Before the medium melts, the service voltage cannot be raised to the rated voltage.
4. Wiring components must be located outside the insulation layer to avoid contact with corrosive, explosive media and moisture. The wires must be able to withstand the long-term temperature and thermal load of the wire connection, and the wire connection screws should not be tightened with excessive force.
5. The magnesium oxide powder at the outlet of the heating tube of the duct electric heater should be protected at the place of use to prevent leakage accidents.
