We have a paint cell (50' X 50' X 50') that is a Class 1 Division 1 space. My rule to building operations is that once a Class 1 / Div 1, always a Class 1 / Div 1 space. That is, the NEC does not make provisions that the classification is contingent on the use at that time.
Just because you are not painting at this moment does not mean that you drag a bunch of drop lights plugged into extensions cords into the cell. Whether you are painting now or not, the classification of the area remains the same.
Am I on track with this so far? If any of you think I am being overly restrictive, please let me know.
Now they have a need to do some work in the cell and are asking to bring in a variety of electrical equipment that is not rated for use in a Class 1 / Div 1 space. I am telling them that they can not just go and do this - there is no provision in the NEC to suddenly decide the area is no longer classified for the next 3 days, but it is again on day 4.
I did say that with the full blessing of Safety, the company Fire Marshal, the municipal Fire Chief, and a licensed electrican, along with appropriate measures such as cleaning the cell, constant ventilation, and constant LEL monitoring, that it could possibly be done?
What are your collective thoughts on this? Any one else ever run into this, or am I just being paranoid?
Thanks
Just because you are not painting at this moment does not mean that you drag a bunch of drop lights plugged into extensions cords into the cell. Whether you are painting now or not, the classification of the area remains the same.
Am I on track with this so far? If any of you think I am being overly restrictive, please let me know.
Now they have a need to do some work in the cell and are asking to bring in a variety of electrical equipment that is not rated for use in a Class 1 / Div 1 space. I am telling them that they can not just go and do this - there is no provision in the NEC to suddenly decide the area is no longer classified for the next 3 days, but it is again on day 4.
I did say that with the full blessing of Safety, the company Fire Marshal, the municipal Fire Chief, and a licensed electrican, along with appropriate measures such as cleaning the cell, constant ventilation, and constant LEL monitoring, that it could possibly be done?
What are your collective thoughts on this? Any one else ever run into this, or am I just being paranoid?
Thanks