NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN EN 61857-21 ; VDE 0302-21:1999-11 [Withdrawn] references following documents:
| Document number | Edition | Title |
|---|---|---|
| IEC 61857-1 | 1998-11 | Electrical insulation systems - Procedures for thermal evaluation - Part 1: General requirements - Low-voltage More |