Industry Applications
Degraded insulation, electric leakage and tripping
Moisture reduces insulation resistance and causes leakage current, leading to frequent RCD tripping and electric shock risk. Insulation test value will be lower than 5 MΩ under 500V megohmmeter test.
Corrosion and damage of components
Moisture mixed with hydrogen sulfide and salt corrodes PCB traces, solder joints and component pins, resulting in rust, open circuits and premature failure of capacitors and MOSFETs.
Internal short circuit, sparking and breakdown
Damp dust forms conductive paths, causing creepage and electric arcs during operation. Power tubes and resonant capacitors are easily broken down and burnt out instantly after power-on.
Poor lamp ignition, flickering and frequent protection shutdown
Moisture leakage in high-voltage startup circuit makes UV lamps hard to light up or flicker continuously. The ballast will trigger leakage protection repeatedly and stop intermittently, reducing UV disinfection efficiency.
Accelerated component aging and shortened service life
Moisture deteriorates electrolytic capacitors and increases leakage of semiconductors. The service life of damp ballasts will be reduced by more than half.
Vicious cycle of internal condensation
Temperature difference between day and night keeps generating dew inside, moisture accumulates continuously and faults become increasingly severe until complete failure.
Secondary equipment damage
Abnormal output voltage from damp faulty ballasts may burn matched UV lamps, raising maintenance costs.
