Shall I convert from TT to TNCS ?

There are several restrictions on exporting earths (as we've all discussed before, at length) and it doesn't cost very much extra to have a rod and some RCDs on the load end (in addition to the MCB at the head). Arguably, the only delta cost is the rod, so why not do it this way? In my case the house has an overhead 2-wire feed to the final pole (in the garden) and gets earthed there and goes underground to get to the CU. The sheds and other outside bits are 50-100m away via buried SWA so are each fed from MCBs and have their own rods. I also added an additional rod at the house (because I was concerned about the overhead lines going through trees).

It ain’t that hard. But if you want a web interface…

Watching John Ward's Diverted Neutral Current Demonstration

George