Planning to install a 9kw instant shower in the upstairs bathroom, keeping the bath etc.
There is no capacity on the CU to run a cable so I need another small CU to allow this(and to allow capacity for running power to a workshop at a later date)
My main questions relate to routing the wiring. The CU is in the utility room centrally in the house, ground floor. The bath is upstairs directly above the ceiling across the other side of the utility room from the CU. I plan to run the cable in surface mounted conduit up from the new CU then around the corners to below the bath and up through the floor. Ideally I want to cut a decent chase down the narrow end of the bath wall and run the cable up inside the cavity to the height it needs to be(whole lot will be marine ply-ed and then tiled after so can afford to cut into the plasterboard)
Should I run the cable in the cavity inside a metal pipe of some sort? The plumbing will be routed up into the wall too I don't want pipes and conduit on the tiled surface.
Can anyone advise of any LA, legal issues and whether this needs signed off to keep insurers happy? This is a concern now it's a bought house, my last housing association place I fully installed all the wiring and plumbing(including retrofitting the prehistoric CU to take a modern RCD, hacksaw job....!!) and had no worries but the shower wall was through from the immersion cupboard which had the CU in it so everything was visible.
The wiring will be 10mm2 even though it's a short run...
There is no capacity on the CU to run a cable so I need another small CU to allow this(and to allow capacity for running power to a workshop at a later date)
My main questions relate to routing the wiring. The CU is in the utility room centrally in the house, ground floor. The bath is upstairs directly above the ceiling across the other side of the utility room from the CU. I plan to run the cable in surface mounted conduit up from the new CU then around the corners to below the bath and up through the floor. Ideally I want to cut a decent chase down the narrow end of the bath wall and run the cable up inside the cavity to the height it needs to be(whole lot will be marine ply-ed and then tiled after so can afford to cut into the plasterboard)
Should I run the cable in the cavity inside a metal pipe of some sort? The plumbing will be routed up into the wall too I don't want pipes and conduit on the tiled surface.
Can anyone advise of any LA, legal issues and whether this needs signed off to keep insurers happy? This is a concern now it's a bought house, my last housing association place I fully installed all the wiring and plumbing(including retrofitting the prehistoric CU to take a modern RCD, hacksaw job....!!) and had no worries but the shower wall was through from the immersion cupboard which had the CU in it so everything was visible.
The wiring will be 10mm2 even though it's a short run...