Wow, I hate to even guess at how expensive that stuff is!
I am not suprised Ed I know they are not cheap but what it make up the diffrence is the labour cost I have done simaiur product in France we have SWA { steel wire armoured } cable that right up near tech cable is with construction and how to termaite it.
Yeah they do come in quite few diffrent size they go from 2.5mm˛ all the way to monster 500mm˛ { 14 AWG to 850KCM }
Merci,Marc