A box or conduit body shall not be required where cables enter or exit from conduit or tubing that is used to provide cable support or protection against physical damage. Think of your home's distribution box as the Grand Central Station of your electrical system. Just like travelers need clear pathways and safety protocols, your electrical circuits need proper management to prevent chaos. The National Electrical Code (NEC) requirements might seem like bureaucratic. Underdrain pipe must meet or exceed the requirements for Class 125 PVC pressure pipe as identified in ASTM Specification D 2241. The pipe and fittings must be marked as required by ASTM Specification D 2241. A conduit body is a removable-cover section of a conduit system that provides access at. How far away do plumbing pipes have to be from an electrical panel? The National Electrical Code (NEC) does not specifically address plumbing pipe clearance, but requires an area clear of any obstructions that is 2'-6” wide, 3'-0” deep, and 6'-6” high around the front of a panel [NEC 110. 26 (A)] and dedicated space to provide.