We have a Coal Mill that we are trying to determine the Hazardous Classification in order to specify all the correct equipment. The design engineer had origonally listed on the design drawings that this area was a Class II DIV I area. The contractor has questioned this classification in regards to many of the equipment enclosures that were specified for the job which do not match this classification. There is now a heated discussion about what the actual classification is.
The main question seems to be who is ultimately responsible for determining the classification of a particular area. Is it the design engineer? Is it the client? Some people here are stating that it is the clients insurance company that dictates this classification?
If this area is indeed a ClassII DIV I area do all the enclosures in this area need to be rated for NEMA 7,8, or 9? Does this include receptacle enclosures? Doe the receptacles have to be GFI protected?
The main question seems to be who is ultimately responsible for determining the classification of a particular area. Is it the design engineer? Is it the client? Some people here are stating that it is the clients insurance company that dictates this classification?
If this area is indeed a ClassII DIV I area do all the enclosures in this area need to be rated for NEMA 7,8, or 9? Does this include receptacle enclosures? Doe the receptacles have to be GFI protected?