NA 022

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

DIN EN 60551 ; VDE 0532-7:1993-11 [Withdrawn] referenced in following documents:

Document number Edition Title
VDI 3739 1999-02 Characteristic noise emission values of technical sound sources - Transformers More 
VGB R 304 1998 VGB-Richtlinie - Lärmminderung in Wärmekraftanlagen More