VisitorPass
Member
Is it possible to de-classify a Class 1 Div 2 area by using an LEL monitor? I've never heard of this being done, nor have I found any reference to it anywhere else but, it seems to me like it would work.
I could tie the alarm contact from the LEL to a shunt-trip-breaker to cut power to everything in the area (except the LEL monitor of course, which would be wired for Class 1 Div 1).
Is there precedence for doing something like this? My application is a bottle filling line, the flammable element is acetone.
I could tie the alarm contact from the LEL to a shunt-trip-breaker to cut power to everything in the area (except the LEL monitor of course, which would be wired for Class 1 Div 1).
Is there precedence for doing something like this? My application is a bottle filling line, the flammable element is acetone.