I currently have two outdoor lights that I am planning to fit at the rear of my house. Unfortunately the wiring is becoming troublesome, Originally I was planning on running these cables within the cavity, unfortunately I can't get access to the cavity within the loft so this is out of the question. Given this limitation I was planning on drilling right through both layers and running the cable up and into the loft internally, this poses another problem, these cables will be outside of safe zones (unless a safe zone is created in a doorway? See attached picture).
Now from what I've gathered some think that steel capping can be earthed and used as protection outside of safe zones, others think that steel conduit should be used. In my situation what is the best solution, given that the bricks are incredibly hard in this house and providing additional depth for the steel conduit will be troublesome. Is it acceptable to use earthed steel capping in this situation and if so what method should be used to earth it?
Any alternative suggestions are welcome and of course any advisement appreciated.
Legend:
Red - Cable from opposite wall
Green - Questionable safe zones
Now from what I've gathered some think that steel capping can be earthed and used as protection outside of safe zones, others think that steel conduit should be used. In my situation what is the best solution, given that the bricks are incredibly hard in this house and providing additional depth for the steel conduit will be troublesome. Is it acceptable to use earthed steel capping in this situation and if so what method should be used to earth it?
Any alternative suggestions are welcome and of course any advisement appreciated.
Legend:
Red - Cable from opposite wall
Green - Questionable safe zones