Thanks for your reply. My mistake - the cable diameter is about 14mm, with 4-core 2.5mm²:
https://www.tlc-direct.co.uk/Products/SW2dot5slash4.html
Cheers.
Hi Folks,
I moved into a house that had an existing SWA cable (20mm, 4-core) going from the house CU (RCD) up the garden to a smaller CU in a brick shed (about 80 feet away). When the house clearance people were clearing the garden they thought it wise to burn all the old weeds and ended up...