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324
Pollution Degree
Categories
Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The
pollution has no influence. For example: a clean room or air-conditioned office
environment.
Pollution degree 2: Normally only dry, non-conductive pollution occurs.
Occasionally temporary conductivity caused by condensation may occur. For
example: general indoor environment.
Pollution degree 3: Conductive pollution, or dry, non-conductive pollution occurs
which becomes conductive due to condensation. For example: sheltered outdoor
environment.
Pollution degree 4: Pollution that generates persistent conductivity through
conductive dust, rain, or snow. For example: outdoor locations.
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