How to Prevent Electric Heating Tube Electric Leakage

An electric heating tube is a common heating element that converts electric energy into thermal energy. Electric leakage may occur during operation, especially when heating liquids. Failure to promptly address leakage risks operational accidents. Such issues usually stem from improper operation or unfavorable working environments. Precautions shall be taken in advance with correct operating specifications as follows:

1.For air heating, arrange heating tubes evenly to secure sufficient and uniform heat dissipation space. Maintain smooth air circulation to enhance heating efficiency.

2.When heating fusible metals or solid substances like nitrate, paraffin and asphalt, melt the materials first with reduced external voltage. Restore rated voltage after complete melting. Strict safety measures must be adopted when heating explosive substances such as nitrate.

3.Store heating tubes in dry places with qualified insulation resistance. If insulation resistance is insufficient, recover it via low-voltage power supply before use. Firmly fix the tubes prior to use. Keep wiring terminals outside the thermal insulation layer, away from corrosive, explosive media and water.

4.Magnesium oxide powder fills the inner gaps of heating tubes. The powder at wire outlets is prone to contamination by impurities and moisture. Inspect wire terminals regularly to avoid leakage accidents.

5.Fully immerse heating tubes into heated liquid or solid metal; dry burning is prohibited. Timely remove scale and carbon deposits on metal casings after use to guarantee heat dissipation and service life.

Besides the above preventive measures, purchase heating tubes from large formal manufacturers to guarantee reliable product quality.