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Hi all. Long time lurker, first time poster. I am not an electrician but I enjoy learning as much as I can. I am currently renovating a house (small 3 bed semi) and have pretty much completely rewired the place. My intention is to get an electrician to check what I’ve done (while all cables are still exposed, visible and easily moved if necessary and boards are still up etc) and then final fix and test. I’d like to make as much provision as possible before getting them in, so I’m after a bit of advice on a couple of things.
Firstly, I’m extending the kitchen into the garage and the incoming mains cable will be slightly in the way but fortunately it comes up from the half of the garage that won’t be the kitchen so will only need to be shortened and moved about a metre. While I’m getting this done (I’m not sure exactly how yet), I think it’s a good idea to fit an isolator (one of those Wylex ones) to make the rest of the work easier? So am I right it would be main into fuse then into meter then isolator then CU? I will inevitably have a smart meter installed at a later date I guess. 25mm tails? Current CU has 100a main switch.
Secondly, I think I may as well get a new CU so can you give me an idea of what I need for it. I’m thinking of going down the RCBO route to keep the size down but this is where my knowledge lacks a little. What needs an RCBO? Or is it a good idea to use on all circuits? These are my circuits..
Upstairs ring - 2.5 T&E mostly clipped to or through joists. Approx 40m total ring length.
Downstairs ring - 2.5 T&E mostly clipped to or through joists. Approx 40m total ring length.
Kitchen ring - 2.5 T&E mixed clipped to joists and in stud wall. Approx 20m total ring length.
Outside sockets - 2.5 T&E only 2 sockets, radial
Upstairs lights - 1.5 T&E all LED spots (approx 26 bulbs)
Downstairs lights - 1.5 T&E all LED spots (approx 26 bulbs)
Outside lights - 1.5 T&E all LED (approx 14 bulbs)
Built in Ikea oven 13a no further info available currently - 2.5 T&E radial
Built in Ikea microwave combi (rated 2800w, 16a) - 2.5 T&E radial
Boiler - 2.5 T&E radial in garage near CU.
What RCBOs/MCBs should I spec? Is there anything here that worries you? Have I done anything dangerous or stupid?
Thanks in advance.
Firstly, I’m extending the kitchen into the garage and the incoming mains cable will be slightly in the way but fortunately it comes up from the half of the garage that won’t be the kitchen so will only need to be shortened and moved about a metre. While I’m getting this done (I’m not sure exactly how yet), I think it’s a good idea to fit an isolator (one of those Wylex ones) to make the rest of the work easier? So am I right it would be main into fuse then into meter then isolator then CU? I will inevitably have a smart meter installed at a later date I guess. 25mm tails? Current CU has 100a main switch.
Secondly, I think I may as well get a new CU so can you give me an idea of what I need for it. I’m thinking of going down the RCBO route to keep the size down but this is where my knowledge lacks a little. What needs an RCBO? Or is it a good idea to use on all circuits? These are my circuits..
Upstairs ring - 2.5 T&E mostly clipped to or through joists. Approx 40m total ring length.
Downstairs ring - 2.5 T&E mostly clipped to or through joists. Approx 40m total ring length.
Kitchen ring - 2.5 T&E mixed clipped to joists and in stud wall. Approx 20m total ring length.
Outside sockets - 2.5 T&E only 2 sockets, radial
Upstairs lights - 1.5 T&E all LED spots (approx 26 bulbs)
Downstairs lights - 1.5 T&E all LED spots (approx 26 bulbs)
Outside lights - 1.5 T&E all LED (approx 14 bulbs)
Built in Ikea oven 13a no further info available currently - 2.5 T&E radial
Built in Ikea microwave combi (rated 2800w, 16a) - 2.5 T&E radial
Boiler - 2.5 T&E radial in garage near CU.
What RCBOs/MCBs should I spec? Is there anything here that worries you? Have I done anything dangerous or stupid?
Thanks in advance.