Learning
Center
Leading you to an educated decision.
Pollution Degree
Classification according to the amount of solid pollution and condensation in the environment.
Degree 1:
No pollution or only non-conductive pollution which has no effect.
Degree 2:
Usually non-conductive pollution, with some temporary condensation.
Degree 3:
Conductive and non-conductive pollution, frequent condensation.
Degree 4:
Persistently conductive pollution caused by wet dust, rain, or snow.