Methods to Prevent Electronic Ballast from Dampness

Select well-protected ballasts

Choose IP65/IP67 fully potting ballasts for humid water treatment sites. Avoid open unprotected types. The PCB shall be coated with conformal coating for moisture and corrosion resistance.

Optimize installation position

Mount vertically at high positions; keep away from water tanks, dripping areas, steam outlets and low-lying damp trenches.

Seal enclosure and cable entries tightly

Install intact rubber gaskets on cabinet doors; reserve drainage holes at cabinet bottom. Use waterproof cable glands with rubber seals. Seal wire joints with self-fusing silicone tape and heat shrink tubes.

Control temperature and ventilation to avoid condensation

Equip control cabinets with cooling fans or dehumidifying heaters to reduce temperature difference and dew formation. Reserve slight ventilation to balance humidity.

Moisture-proof maintenance after repair & daily inspection

Fully dry PCB at low temperature before recoating conformal coating and sealing housing after repair. Regularly check aging sealing parts and clean internal dust. For long-idle equipment, power on periodically to remove moisture by self-heating.

Auxiliary moisture absorption measures

Place desiccant bags inside cabinets and replace regularly. Shield the ballast enclosure from direct splashing water and rain.