A roof-mounted electrical installation features a cast metal two-gang NEMA 3R junction box with threaded hubs supported by rigid steel conduit complying with NEC Article 314. The assembly includes a cast metal weather-resistant while-in-use cover and receptacle mounted above the roof surface. Rigid steel conduits extend through the roof penetration, which is detailed separately per roof penetration specifications, and include required structural support systems.
18" MAX 12" MAX A A CAST METAL WHILE- IN -USE WP COVER(S) & RECEPTACLE(S) RIGID STEEL CONDUIT SUPPORT PER NEC ART. 314 ROOF PENETRATION PER DETAIL 2/A5.600. PROVIDE SUPPORT SYSTEM AS REQUIRED. CAST METAL 2-GANG NEMA 3R JUNCTION BOX WITH THREADED HUBS. ELEVATION SECTION
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