IEC 60664-3-ed.3.0

Annotation of standard text IEC 60664-3-ed.3.0 :

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. LIEC 60664-3:2016 est applicable aux ensembles proteges contre la pollution au moyen de revetement, dempotage ou de moulage, permettant ainsi une reduction des distances disolement et des lignes de fuite decrites dans lIEC 60664-1. Le present document decrit les exigences et procedures dessai pour deux methodes de protection: - la protection de type 1 ameliore le microenvironnement des parties sous protection; - la protection de type 2 est consideree comme similaire a lisolation solide. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: a) des informations concernant linterpolation ont ete ajoutees; b) lessai de resistance aux eraflures est destine uniquement aux protections de type 2; c) lessai de resistance aux eraflures a ete renumerote et place a la suite de lessai dexamen visuel, ce qui est plus pertinent; d) le tableau de lannexe desormais designee comme lAnnexe A a ete divise en plusieurs tableaux, pour plus de clarte.