Sorry I wasn't clear.
First photo shows the proposed route.
Second shows the windowsill removed and reveals the box the electricity meter is contained in.
I'd like to bury the cable as opposed to running it surface mounted.
If (and as I wrote above, it doesn't make any sense, but regs sometimes don't make sense) the rules regarding the location of buried cables apply here then I see I have the following options:
1) Surface mount to a position where I can drill through into the back of the electric cupboard.
2) Channel out and conceal the cable running down the corner, but surface mount the section that runs across the wall until I can drill through into the electric cupboard. If I did this, I'd run the horizontal conduit just above the skirting.
3) Drill through to exterior for some/all of cable run - cosmetically I think this is the least desirable option.
4) Find a way to run the cable as illustrated in red, that IS allowed by the regs if possible? E.g. fitting a blank faceplate?
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