Bonding of conduit in kitchen floor

[Guitarist]

I asked a similar question of Elecsa a couple of years ago regarding T&E running through a backbox to identify a drop, before going through a wall. They told me that as long as the T&E is continuous, then the backbox does not need to be earthed, as the cable is insulated and sheathed.

 

[Octopus]

Maybe ditch the steel conduit idea and use something plastic?

And we shouldn't have to by Guidance Notes to understand the regs.