Al Pike
Member
- Location
- Honesdale, Pa
A Client wants me to install conduits from a C1D1 wet well encased in concrete to above grade. Once it leaves grade we have 2ft exposed with a union to connect the conduit to an explosion proof enclosure. The seals are to be installed after the enclosure before it routes to the control panel.
501.15(A)(4) 4) Class I, Division 1 Boundary. A conduit seal shall be required in each conduit run leaving a Division 1 location. The sealing fitting shall be permitted to be installed on either side of the boundary within 3.05 m (10 ft) of the boundary, and it shall be designed and installed to minimize the amount of gas or vapor within the portion of the conduit installed in the Division 1 location that can be communicated beyond the seal. The conduit run between the conduit seal and the point at which the conduit leaves the Division 1 location shall contain no union, coupling, box, or other fitting except for a listed explosion proof reducer installed at the conduit seal.
Am I reading this wrong? I cant find a exception allowing this installation. I've voiced my concerns and was informed that all of their pump stations are done this way.
Thanks for all replies.
501.15(A)(4) 4) Class I, Division 1 Boundary. A conduit seal shall be required in each conduit run leaving a Division 1 location. The sealing fitting shall be permitted to be installed on either side of the boundary within 3.05 m (10 ft) of the boundary, and it shall be designed and installed to minimize the amount of gas or vapor within the portion of the conduit installed in the Division 1 location that can be communicated beyond the seal. The conduit run between the conduit seal and the point at which the conduit leaves the Division 1 location shall contain no union, coupling, box, or other fitting except for a listed explosion proof reducer installed at the conduit seal.
Am I reading this wrong? I cant find a exception allowing this installation. I've voiced my concerns and was informed that all of their pump stations are done this way.
Thanks for all replies.