Richard Pra
Member
What would be the proper way to size the grounding conductor for parallel service feeds from the secondary side of a 277/480v transformer
going to a 3000A switch board. Conduit is run in 8 parallel PVC feeds with 4 500mcm conductors in each conduit.
going to a 3000A switch board. Conduit is run in 8 parallel PVC feeds with 4 500mcm conductors in each conduit.