BLarsen1964
Member
- Location
- Iowa
- Occupation
- Electrical Superintendent
I have a classified Area-- (Class 1-Div 1). Underground conduits from an MCC (outside the classified area) to a future equipment location. These will remain empty for a later date--possibly years. Is it necessary to use a sealoff or is a malleable iron threaded plug in the GRC coupling at the floor on each end acceptable?