If feeders share a common neutral conductor, what is required for the raceway or enclosure?

If feeders share a common neutral conductor, what is required for the raceway or enclosure?

• A. A raceway or other enclosure will be required for all conductors of all feeders
• B. No enclosure is required
• C. Only neutrals require an enclosure
• D. Only feeders with a shared neutral require enclosure

Answer: (A)

When multiple feeders share a common neutral, all conductors involved become part of one multi-conductor system that needs protection as a unit. The neutral carries the unbalanced current from all feeders, so keeping the hot conductors and the shared neutral together in a raceway or enclosure protects them from physical damage, reduces the risk of accidental contact, and ensures proper containment and insulation of the entire circuit arrangement. This alignment also supports correct installation practices, like consistent groupings and easier compliance with fill and protection requirements. Because of these safety and wiring-practice considerations, a raceway or enclosure is required for all conductors of all feeders.

When multiple feeders share a common neutral, all conductors involved become part of one multi-conductor system that needs protection as a unit. The neutral carries the unbalanced current from all feeders, so keeping the hot conductors and the shared neutral together in a raceway or enclosure protects them from physical damage, reduces the risk of accidental contact, and ensures proper containment and insulation of the entire circuit arrangement. This alignment also supports correct installation practices, like consistent groupings and easier compliance with fill and protection requirements. Because of these safety and wiring-practice considerations, a raceway or enclosure is required for all conductors of all feeders.