Hi, I'm planning on rewiring my house in the near future. As I'm not certified I'll be getting building control to inspect and sign off on the installation. Before I send in the BC notice I was hoping that some of the experienced people here could run an eye over my initial plans to see if there are any obvious errors or omissions.
The house is a small three bed semi, with one bathroom upstairs. Downstairs there is a kitchen, lounge, utility room/toilet and an attached shed/store. It appears the house was last rewired in the late 80s with the old red/black style twin and earth.
My plan is to replace the old CU with a MK Sentry unit (this one: http://www.screwfix.com/p/mk-sentry-12-module-6-way-populated-main-switch-consumer-unit/8318p), run new cable and convert everything to run on RCBOs. That unit comes prepopulated with a number of RCBOs which I was planning on assigning to the circuits as follows:
6A Radial 1.5mm - Downstairs lights (3 x ceiling roses, 9 x led downlighters)
6A Radial 1.5mm - Upstairs lights (4 x ceiling roses) + bathroom (3 x led downlighters, extractor fan, shaver socket)
16A Radial 2.5mm - combi-boiler
32A Ring final 2.5mm - lounge sockets (5 x doubles) + understairs cupboard double socket (used to run some computer equipment)
32A Ring final 2.5mm - upstairs sockets (around 10 x doubles spread throught the bedrooms)
40A Radial 6mm - run to isolation switch for cooker/hob - 4mm runs from there to separate oven and hob.
I'd also add some more RCBOs:
6A Radial 1.5mm - "external" lights (wall mounted security lights + a light in the attached shed/store)
6A Radial 2.5mm - alarm system
32A Ring final 2.5mm - kitchen sockets (4 doubles + 1 single) + double socket in utility room for washing machine + double external socket
Notes:
My burglar alarm runs the smoke/heat alarms in the house, hence no separate mains smoke alarm circuit. It has a 24hour battery backup built in.
I'm wondering whether it'd be a good idea to use the last space to add a separate circuit for the fridge-freezer? Maybe 16A Radial in 2.5mm? Or I could just leave it free for future expansion.
Have I made any glaring errors? Is the MK consumer unit one to avoid? Any feedback would be much appreciated.
The house is a small three bed semi, with one bathroom upstairs. Downstairs there is a kitchen, lounge, utility room/toilet and an attached shed/store. It appears the house was last rewired in the late 80s with the old red/black style twin and earth.
My plan is to replace the old CU with a MK Sentry unit (this one: http://www.screwfix.com/p/mk-sentry-12-module-6-way-populated-main-switch-consumer-unit/8318p), run new cable and convert everything to run on RCBOs. That unit comes prepopulated with a number of RCBOs which I was planning on assigning to the circuits as follows:
6A Radial 1.5mm - Downstairs lights (3 x ceiling roses, 9 x led downlighters)
6A Radial 1.5mm - Upstairs lights (4 x ceiling roses) + bathroom (3 x led downlighters, extractor fan, shaver socket)
16A Radial 2.5mm - combi-boiler
32A Ring final 2.5mm - lounge sockets (5 x doubles) + understairs cupboard double socket (used to run some computer equipment)
32A Ring final 2.5mm - upstairs sockets (around 10 x doubles spread throught the bedrooms)
40A Radial 6mm - run to isolation switch for cooker/hob - 4mm runs from there to separate oven and hob.
I'd also add some more RCBOs:
6A Radial 1.5mm - "external" lights (wall mounted security lights + a light in the attached shed/store)
6A Radial 2.5mm - alarm system
32A Ring final 2.5mm - kitchen sockets (4 doubles + 1 single) + double socket in utility room for washing machine + double external socket
Notes:
My burglar alarm runs the smoke/heat alarms in the house, hence no separate mains smoke alarm circuit. It has a 24hour battery backup built in.
I'm wondering whether it'd be a good idea to use the last space to add a separate circuit for the fridge-freezer? Maybe 16A Radial in 2.5mm? Or I could just leave it free for future expansion.
Have I made any glaring errors? Is the MK consumer unit one to avoid? Any feedback would be much appreciated.