For 6mm2 T&E, I might most likely use independent 20mm oval conduits, one for each of the two cables, but I'd guess you would require 32mm oval conduit it you really needed to put both of those in one size. Many thanks Pete. This is the shown creating so I'm https://minitrunkingaccessories67788.weblogco.com/29142245/5-simple-techniques-for-round-conduit