ceiling shall be not more than 1650 cm 3 (100 in. 3) in size and shall be ... or more conduits t h readed wrenchtight into the enclosure or hubs. Each conduit ... shall be secured within 900 mm (3 ft) of the enclosure, or within 450 mm (18 ... or more conduits t h readed wrenchtight into the enclosure or hubs. Each conduit ... of the enclosure. (See Figure 15) 314.27 Outlet Boxes (B) Maximum Luminaire ( ... (lighting fixture s ) weighing 23 kg (50 lbs.) or less. A luminaire ( ... f i x t u re) that weighs more than 23 kg (50 lbs.) shall be s u p p o rted ...