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. It specifies the requirements for clearances, creepage distances and solid insulation for equipment based upon their performance criteria.
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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. To be found in industrial environment or construction sites harsh environments. The pollution generates persistent conductivity caused by conductive dust, rain, or snow.
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. Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website.
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IEC 664-1 PDF