Reference Date Title Language EN 62217:2006 2006-03-10 Polymeric insulators for indoor and outdoor use with a nominal voltage > 1 000 V - General definitions, test methods and acceptance criteria     EN 60437:1997 1997-10-14 Radio interference test on high-voltage insulators     EN 60507:1993 1993-05-05 Artificial pollution tests on high-voltage insulators to be used on a.c. systems     EN 62223:2009 2009-11-27 Insulators - Glossary of terms and definitions     CLC/TR 62662:2011 2011-10-28 Guidance for production, testing and diagnostics of polymer insulators with respect to brittle fracture of core materials     EN 62217:2013 2013-03-08 Polymeric HV insulators for indoor and outdoor use - General definitions, test methods and acceptance criteria