Hi Brooker, In EN 60204-1 (electrical standard for machinery) in th the Normative references it calls out IEC 60364-4-X and there are several parts depending on your specific installation requirement. For example IEC 60364-4-41 title "Electrical installations of buildings - Part 4 Protection of Safety, Chapter 41 Protection against electric shock". If you have a standards web site like "British standards online" I'm sure can locate exactly what you need. Christopher Caserta
ccaserta@enorthhampton.com
Ph:904-225-0360