Your right, 'appears to be' belongs in the same category as 'assumes' (aka 'an ass of u and me').
I was taught never assume but I'm still learning go easy on me :D
Fwiw, I'll prolly go with 3 core then and not connect it at TT end. There is no extraneous parts I should have made that clearer...
I wish to run a 10mm 2 core swa to the above approx 33m from house. Existing house ccu has no provision for RCD protection or spare ways so it's a tails split job.
Intention is to use armouring as cpc and bond it at house end only. My question is as there appears to be no extraneous conductive...