Hello,
I am getting a bit bogged down with detail as I always try my best to meet every best practice but I am very out of practice as I have been working outside the industry for 15yrs. All help appreciated.
I am refurbishing my small 2 bed bungalow and have some questions for all the experts out there.
I have fitted a new metal 10 way consumer unit and have already run a separate 6amcb circuit for the loft mounted boiler, a 16a mcb to a general purpose & AV cupboard/ room.
I have run a ring main for the 2 bedrooms and am considering extending this for the living room or should I just run a 16a radial for living room?
My main issue is the kitchen!
Wife wants a double oven and induction hob and is the kind to have both ovens and most hobs on the go being a bit foody.
I have read on NEF site that you dont apply diversity to an induction hob, correct?
As both ovens are likely to be on at the same time I have come to conclusion I will run 2 x 6mm radials, 1 for each. Oven =6.5kw & hob 7kw, ok so far?
I have got in a muddle with regards to applying diversity to remaining kitchen appliances.
Microwave is a 800kw grill too but understand its only one at a time so consumption is rated at 1.4kw.
Washine machine=1.5kw
Dishwasher= 2 kw
Fridge/freezer=0.4kw
Wine cooler= 0.1kw
then theres the 2.2kw toaster and 3 kw kettle!
Thats 10.6Kw / 46A!!! before any other stuff is plugged in!
I've been trying to find details on how to properly diversify kitchen but only ever get the cooker calculation (on separate in my case) or the total dwelling design current.
I know it's neigh on impossible that all these will be on at the same time but what is the correct way to calculate the diversity???
I have considered running a separate 2.5mm 16a radial for the microwave and poss another for dishwasher & washing machine?
If I did this could I run just a radial to supply rest of kitchen?
Also wanted to fit the scolmore click minigrid control panel which will now have 2x 6mm for hob/oven supply, 2x2.5 for microwave &washing machine/dishwasher, 1x2.5 if radial or 2 if ring to supply remaining modules like wine cooler, fridge freezer.
I understand you can no longer have the fridge freezer on a separate cct before the rcd?
to summarise.
How do I diversify the cable calc for kitchen & should I run more ccts?
Do I put remaining kitchen on ring or radial?
Do extend rear rfc to incorporate living room or run another radial (remember all AV will be in dedicated AV cupboard on its own radial)?
Then I have the next biggy, loft insulation!
Can I lay cable over it rather than secure to joists which will result in needing 2x 10mm cooker cable (wont work with minigrid)?
Is there a way to bypass this by running cable through some plastic pipe to avoid contact with insulation?
Do I remove all insulation and have to go to extra expense of insulating rafters?
I know its a lot but all help really appreciated.
I am getting a bit bogged down with detail as I always try my best to meet every best practice but I am very out of practice as I have been working outside the industry for 15yrs. All help appreciated.
I am refurbishing my small 2 bed bungalow and have some questions for all the experts out there.
I have fitted a new metal 10 way consumer unit and have already run a separate 6amcb circuit for the loft mounted boiler, a 16a mcb to a general purpose & AV cupboard/ room.
I have run a ring main for the 2 bedrooms and am considering extending this for the living room or should I just run a 16a radial for living room?
My main issue is the kitchen!
Wife wants a double oven and induction hob and is the kind to have both ovens and most hobs on the go being a bit foody.
I have read on NEF site that you dont apply diversity to an induction hob, correct?
As both ovens are likely to be on at the same time I have come to conclusion I will run 2 x 6mm radials, 1 for each. Oven =6.5kw & hob 7kw, ok so far?
I have got in a muddle with regards to applying diversity to remaining kitchen appliances.
Microwave is a 800kw grill too but understand its only one at a time so consumption is rated at 1.4kw.
Washine machine=1.5kw
Dishwasher= 2 kw
Fridge/freezer=0.4kw
Wine cooler= 0.1kw
then theres the 2.2kw toaster and 3 kw kettle!
Thats 10.6Kw / 46A!!! before any other stuff is plugged in!
I've been trying to find details on how to properly diversify kitchen but only ever get the cooker calculation (on separate in my case) or the total dwelling design current.
I know it's neigh on impossible that all these will be on at the same time but what is the correct way to calculate the diversity???
I have considered running a separate 2.5mm 16a radial for the microwave and poss another for dishwasher & washing machine?
If I did this could I run just a radial to supply rest of kitchen?
Also wanted to fit the scolmore click minigrid control panel which will now have 2x 6mm for hob/oven supply, 2x2.5 for microwave &washing machine/dishwasher, 1x2.5 if radial or 2 if ring to supply remaining modules like wine cooler, fridge freezer.
I understand you can no longer have the fridge freezer on a separate cct before the rcd?
to summarise.
How do I diversify the cable calc for kitchen & should I run more ccts?
Do I put remaining kitchen on ring or radial?
Do extend rear rfc to incorporate living room or run another radial (remember all AV will be in dedicated AV cupboard on its own radial)?
Then I have the next biggy, loft insulation!
Can I lay cable over it rather than secure to joists which will result in needing 2x 10mm cooker cable (wont work with minigrid)?
Is there a way to bypass this by running cable through some plastic pipe to avoid contact with insulation?
Do I remove all insulation and have to go to extra expense of insulating rafters?
I know its a lot but all help really appreciated.