- Reaction score
- 16,749
Why on earth do you want to join it using a switch?
And why extend it with T&E?
[automerge]1580849657[/automerge]
What is the wall made of? If it's a solid wall how are you going to cut a deep enough chase without damaging the structural integrity of the wall?
He was thinking because it's in a safe zone then no RCD is needed.