Do you need a multi-user copy? Our prices are in Swiss francs CHF. We accept all major credit cards American Express, Mastercard and Visa , PayPal and bank transfers as form of payment. Preview Abstract IEC Deals with insulation coordination for equipment within low-voltage systems. It applies to equipment for use up to 2 m above sea level having a rated voltage up to a.
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IEC has established four degrees of pollution severity: Pollution Degree 1: No pollution or only dry, nonconductive pollution occurs. The pollution. Office and laboratory areas are considered pollution 2 environments according to safety standards and certification bodies. See table 1 for examples of each of these environments [2,3]. Conductive pollution or dry nonconductive pollution that becomes conductive due to condensation occurs.
Pollution degree is a classification according to the amount of dry pollution and condensation present in the environment. Pollution degree 3 is a harsher environment typical in many industrial manufacturing areas.
Office and laboratory areas are considered pollution degree 2 environments according to safety standards and certification bodies. Rate this document Select a Rating 1 — Poor 2 3 4 5 — Excellent. This classification is important since it affects creepage and clearance distances required to insure the safety of a product. The pollution has no effect. Examples of pollution degree environments Clearly, ATE environments i.
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IEC 664-1 PDF