I have to replace 6 pitch boxes on a touring van caravan site.
So six pitch boxes with 4 van hookup points per box, each hookup point protected by a 10A 30mA RCCB.
Unfortunately I've also discovered that the site is wired as a ring in 6mm SWA, buried direct in ground.
Any thoughts on max fuse size to protect a 6mm ring?
Regards
George