Rhumb
Member
- Location
- Milwaukee, WI
An interesting debate has gone on between me and one our electrical engineers, and I am hopeful someone can affirm either side.
Can a Class 1 Div1 group D motor be used without issue in a Class 1 Div 2 Group C+D rated environment? One point of view is that the Div. 1 requirement is more stringent, and therefore exceeds the Div 2 requirement, regardless of Group. My thought is that the group classification indeed is important, and we cannot simply infer that the Div 1 protections are sufficient for all gas groups. For example, I would have a really hard time putting a Div 1group D rated motor in a Div 2 group A rated environment.
Thank you for your thoughts-
Can a Class 1 Div1 group D motor be used without issue in a Class 1 Div 2 Group C+D rated environment? One point of view is that the Div. 1 requirement is more stringent, and therefore exceeds the Div 2 requirement, regardless of Group. My thought is that the group classification indeed is important, and we cannot simply infer that the Div 1 protections are sufficient for all gas groups. For example, I would have a really hard time putting a Div 1group D rated motor in a Div 2 group A rated environment.
Thank you for your thoughts-