Alright folks.
Just wantin to run something by you all. Have been in a property to wire a bathroom and do a fuse board upgrade. The existing fuse board is in a cupboard upstairs, connected to the cut out outside by a 16mm twin and earth and seperate 10mm cpc, approximately 12 metres of cable run. Im going to be leaving in the 16mm twin and just upgrading the 10mm to a 16mm seperate earth. My query is regarding protection of the 16mm twin feeding the fuse board. Im going to have to put in an isolator of some sorts but should this be an rcd? At this stage i cant see how the cable is run so have to assume at some point it will be less than 50mm from surface. If it should be an rcd would i be better with 100ma to avoid it nuisance tripping whole property?
Thanks in advance for any input
Just wantin to run something by you all. Have been in a property to wire a bathroom and do a fuse board upgrade. The existing fuse board is in a cupboard upstairs, connected to the cut out outside by a 16mm twin and earth and seperate 10mm cpc, approximately 12 metres of cable run. Im going to be leaving in the 16mm twin and just upgrading the 10mm to a 16mm seperate earth. My query is regarding protection of the 16mm twin feeding the fuse board. Im going to have to put in an isolator of some sorts but should this be an rcd? At this stage i cant see how the cable is run so have to assume at some point it will be less than 50mm from surface. If it should be an rcd would i be better with 100ma to avoid it nuisance tripping whole property?
Thanks in advance for any input