2022UNE-EN 50089:2022 High-Voltage switchgear and controlgear - Insulating pressurised partitions for gas filled metal enclosures (Endorsed by Asociación Española de Normalización in December of 2022.)
1996UNE-EN 50089:1996 CAST RESIN PARTITIONS FOR METAL ENCLOSED GAS-FILLES HIGH VOLTAGE SWITCHGEAR AND CONTROLGEAR.