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IEC 60664-3 Ed. 3.0 b:2016

Insulation coordination for equipment within low-voltage systems - Part 3: Use of coating, potting or moulding for protection against pollution
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IEC 60664-3 Ed. 3.0 b:2016

Insulation coordination for equipment within low-voltage systems - Part 3: Use of coating, potting or moulding for protection against pollution

PUBLISH DATE 2016
PAGES 54
IEC 60664-3 Ed. 3.0 b:2016

Insulation coordination for equipment within low-voltage systems - Part 3: Use of coating, potting or moulding for protection against pollution

IEC 60664-3:2016 applies to assemblies protected against pollution by the use of coating, potting or moulding, thus allowing a reduction of clearance and creepage distances as described in IEC 60664-1. This document describes the requirements and test procedures for two methods of protection:

  • type 1 protection improves the microenvironment of the parts under the protection;
  • type 2 protection is considered to be similar to solid insulation.

This edition includes the following significant technical changes with respect to the previous edition:

  • a) information added concerning interpolation;
  • b) provided scratch test is only for type 2 protection;
  • c) renumbered the scratch test to follow the visual examination test, since it makes more sense there;
  • d) separated the tables under what is now called Annex A, to make them clearer.

It has the status of a horizontal standard in accordance with IEC Guide 104.

SDO IEC: International Electrotechnical Commission
Document Number IEC 60664
Publication Date Nov. 1, 2016
Language b - English & French
Page Count
Revision Level 3.0
Supercedes
Committee 109
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