The explosion proof performance of this series machine is in conformity of GB3836.1-2000
The electric equipment in explosive gas environment The first part:General requirements and GB3836.2-2000 The electric equipment in explosive gas environment The second part:explosion proof type "d",as well IEC79-1,BS4683 and EN50018.Explosion-proof mark is Exd II BT4 applying to Class B Sort II of manufacturer,Temperature level T1,T2,T3,T4 explosive gas existing environment.
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