Pollution Degree

It is the end environment in which an end system is used. Table 1 summarizes the different pollution degrees.

Pollution Degree 1: No pollution or only dry, nonconductive pollution occurs. The pollution has no effect.

Pollution Degree 2: Normally, only nonconductive pollution occurs. Temporary conductivity caused by condensation is to be expected.

Pollution Degree 3: Conductive pollution or dry nonconductive pollution that becomes conductive due to condensation. This is to be found in industrial environments or construction sites (harsh environments).

Pollution Degree 4: The pollution generates persistent conductivity caused by conductive dust, rain, or snow.

Table 1 lists pollution degree definitions.

(AN583)add table 1

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