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diversity

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  1. P

    Calculating Power Requirements For A New House After Diversity

    Hi all, I am not an electrician by trade but need a answer, if possible, as to how best calculate the power requirements for a new house that I am building, my electrical network supplier has asked me if I can tell them what the house will require after diversity, as I do not have an electrician...
  2. rolyberkin

    Final Circuits Non Dwelling

    Having gone back and forth through the onsite guide and BYB, am I right that with socket outlets in commercial premises it is the same as domestic 2.5mm and 100m2 ring main and 75m2 for a 4mm radial circuit? So application for diversity would be 32amp for first circuit and then 50% of every...
  3. rolyberkin

    Oven Circuit Question?

    So luckily I am now onto the design module and by chance a friend asks if it is possible to change her LPG gas hob for an electric one, existing oven circuit is fed by 32amp MCB, 6mm T&E normally clipped with no insulation, 15m run. Existing double oven is 5.5kw full load and the proposed hob...
  4. K

    Stuck on 2365 task B 305

    Can anyone help I'm having trouble trying to work out ib for a lot of these circuits in here any help would be appreciated
  5. D

    Diversity Where is it ???

    Can anyone tell me the relevant Reg No or table and where to find it in the 17th Edition/ many thanks
  6. N

    Circuit Design For 15.5kw Cooker?

    I looked at a job today in commercial kitchen. They want power run to a 15.5kw cooker, now obviously this would come in around 67a. Applying diversity it comes to around 27amps. Would you use a 32amp mcb with 6mm t&e? Or would you recommend 40amp mcb with 10mm? since it's not a domestic...
  7. leep82

    applying diversity

    Currently on a job refurbishing a bungalow. The customer has completely changed the layout of the property taking walls out and putting new partition ones up. They have created an en suite in the master bedroom and require a power shower in here as well as the existing bathroom. Im working with...
  8. J

    Why is a cooker circuit generally 6mm and 32a

    As above why is this as I have had a thought and a 20a 2.5 mm cable would be sufficient? Even in my new built it has an oven and hob both 32a radials for each on 6mm cable? Each with a 13a plug on the appliance as diversity shows around 10a max. so even with an upgraded appliance I don't see...
  9. J

    oven/ hob diversity

    Hi. I am installing a new Hob and oven the hob is induction 7.2kw the double oven is 6.8kw and is to be hard wired At the moment there is a 6mm 32amp supply for the hob and a dedicated oven circuit on 2.5mm and 16 amp breaker I have worked the oven with diversity to be just under 16amps. I...
  10. P

    Calculating total demand and diversity in single phase+three phase circuits.

    Good evening all, I just joined the community and I really hope I can contribute as much as I could be helped. Really. I'm completing my 2365 lvl3 course however I just got my 305 B assessment paper back. Apparently I didn't calculate well the max. Demand and diversity of a given circuit...
  11. J

    NICEIC Certification Scheme Max demand on eic for niceic ---

    Morning i have calculated my max demand as 69.6a (sum of mcb's x 0.4) and on my eic i have n/v the main head fuse- but on the sticker it says 60/80a (i know it could actually be 60 or 80 or 100 inside) this is the job i am using for my niceic initial assessment will this be asked about by...
  12. M

    Maximum diversity and Garage DB

    Hi We are doing some refurbish work at my house and I am planning to run a new feed to the garage and install a DB. Mainly because I don’t trust the exciting wiring in there and I have no idea where its supplies from. Plus I would like a separate DB as I use a lot of tools in the garage and I...
  13. M

    Induction Hob and Double Oven Diversity

    Could someone just check my maths and thinking please. Induction Hob 7.2kw = 7200/230 = 31.3 A Double Oven 6.6kw = 6600/230 = 28.7A Total Load = 60A Apply diversity 10A + 30% of remaining load 60 - 10 = 50 x 30% = 15A Diversivified load = 10 + 15 = 25A So a 6mm T&E on a 32A MCB will be ok...
  14. D

    Applying diversity to Cooker unit

    Hi there hope you can shed some light. Ive got a cooker rated at 3.5kw A hob at 6.4 kw Now if i look to apply diversity to this to run a single T and E to a cooker switch the from the switch to a click double cooker connection point. is this correct? 3.5kw =15.2 A 6.4KW = 27.8 A TOTAL =...
  15. M

    Help with diversity

    Hi wonder if u could help me Just rewiring a 3 storey house that's going to be student lets, communal kitchen lounge bathrooms etc I have worked out the following diversity and demand Emergency lights 6a x 0.66 = 2.64a Smoke alarm 6a x0.66 = 2.64a 4 light circuits 4 x 6a x 0.66 = 10.56a 4...
  16. M

    Hep with demand and diversity

    Hi wonder if u could help me Just rewiring a 3 storey house that's going to be student lets, communal kitchen lounge bathrooms etc I have worked out the following diversity and demand Emergency lights 6a x 0.66 = 2.64a Smoke alarm 6a x0.66 = 2.64a 4 light circuits 4 x 6a x 0.66 = 10.56a 4...
  17. J

    Diversity

    Just a quick question on diversity. I need to apply diversity to a 10amp high voltage neon sign, looking at On site guide, is it a simple as 90% of full load meaning the answer is 9 amp???
  18. I

    4 mm Cooker circuit 32amp MCB

    just visited a customer who requires a 7.3kw hob connected to replace existing gas hob. Currently has a 2.3kw single oven connected to a 4mm T+E cooker radial (ref method c) Protected by a 32amp MCB i advised that for the hob to be installed the cooker radial would have to be rewired using 6mm...
  19. T

    Diversity for a built in ovens

    Hi all, Who applies diversity to a built in oven (as opposed to a cooker)? Some do and some say you must not. An example would be a single built in oven, total load of 3.4kW; in theory it will draw nearly 15 Amps, however if one applies diversity (W/O a socket) it will draw just under 11.5...
  20. 1Justin

    vehicle chargers and diversity?

    All electric houses will become increasingly common. (Not far down the line we must be all electric renewable since we are toast if we burn more gas).. But that's not the point for discussion. What are the views on the murky world of diversity when it comes to vehicle chargers? It can already...

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