ECN Forum Forums Code Related Discussion NEC & other Code issues Gr.Passing Thru Box 250.148

George
Metal boxes with nonmetalic Conduits are used a lot of times like 2- 4 inch PVC's underground coming up J box then into Building with 2 -4 inch PVCs , And Yes there ia a Hazard if one of the hots rubbed against the side of the box. You then have a hot box . With smaller pipes metal boxs & PVC conduits its not common But with larger pipes it is!