60.60 Standard published Jul 10, 2009
CENELEC
CLC/SR 112 Evaluation and qualification of electrical insulating materials and systems (to be defined)
European Norm
29.080.30 Insulation systems
IEC 61857-21:2009 describes a general-purpose model (GPM) and a tall channel alternative model (GPM-TC) which can be used for the evaluation of wire-wound electrical insulation systems (EIS) where specific electrotechnical products are not available or required. The third edition cancels and replaces the second edition published in 2004, and constitutes editorial revisions to make this standard compatible with Parts 1 and 22.
WITHDRAWN
EN 61857-21:2004
PUBLISHED
EN 61857-21:2009
60.60
Standard published
Jul 10, 2009