... Power Distribution Transformer 2)Certificate:CCC,CTQC,ISO9001,ISO14001,OHSAS18001 High Quality Transformer 500 kvaS9-M-1000KVA/11KV/0.4KV fully ... of use: the elevation not more than 1000 mEnvironmental highest temperature + 40°C, minimum-25°CThe special environment conditions of ... use: elevation of more than 1000 mEnvironmental highest temperature + 40°C, minimum-45°C. (when you order ...