diversity

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  1. R

    three phase supply Maximum demand and Diversity Quick questiion

    Hello All, Just wondered if you have time to answer a quick question. For maximum demand on a three phase final circuit i.e A 20 A TP-N supply. Do I have to allow 20 Amps for each phase without further calculation.
  2. D

    air conditioning diversity

    Hi everyone, I am looking to find out the diversity factor on air conditioning units. Never worked with them before and am finding different details online. Any help or guidance would be much appreciated. thanks
  3. H

    Mastering Diversity

    From what I can gather, there are two types of diversity application that stand out to me. 1) diversity based on the load type (street lighting = 1 and sockets = 0.6 for example) 2) what I call 'probability' if we have 10 socket circuits fed from a DB then we apply a diversity to the collective...
  4. I

    hot tub supply in domestic dwelling 32A, 100A supply

    Help Needed !! The wife has just purchased a hot tub off eBay! I am a spark but not a bright one!! I was just looking into what's required for the supply and they are stating 8-10kw load 32-40amp supply. To an an isolator and have Rcd protection.. yeah ok so far. I know about the zones regarding...
    • ian w j
    • Thread
    • 32a cooker diversity domestic dwelling hot tub light supply
    • Replies: 72
    • Forum: UK Electrical Forum
  5. A

    diversity- commercial kitchen

    I'm curious as to what diversity any of you may apply to a commercial kitchen. All electrical appliances. So far I've added everything up and total max demand before diversity is 220amps. I've applied 70% overall at the mo but just wondered what others would think.
  6. davesparks

    Diversity calculations, a little challenge for you.

    Here's a littlediversity calculation challenge for anyone who wants to have a go atit, Below is a list of allof the connected loads I had on a music festival over the last weekend,this represents the total connected load across the whole site, thechallenge is to calculate what the actual load is...
  7. D

    Diversity factor and demand factor, confussion.....

    Hi, could someone explain me the difference between sum of individual maximum demand and connected load.... do you think it is the same, ? And the answer for this exercise is what exactly, ?I have some confussion in the calculation... A power supply is having the following loads, A domestic...
  8. R

    diversity calcs for double oven and hob

    Hello all, I have been to a job where they have an exsisting zanussi zdf 5-5.5kw double oven and a gas hob. The customer wants to replace the hob with a hotpoint cra641dc 6.6kw ceramic hob. The current supply is 6mm t/e on 32a mcb rcd protected. They do not want a new supply put in for hob so...
  9. K

    DNO diversity calculations

    Hi, first post so please accept my apologies for going straight in with a question. Sorry if this is a bit long winded but I thought knowing the full story may help. We bought an old semi detached cottage about 7 months ago which is at the end of a 320m overhead LV supply. Initially this...
    • Kenny.s
    • Thread
    • calculations diversity dno phase supply
    • Replies: 4
    • Forum: UK Electrical Forum
  10. S

    Diversity

    Thought I'd throw this out there and see what others think. We're working working on a boiler house and storage room separated by an internal wall which is all a separate building to the house. Supply is coming from the house into the new building as a sub main and contains... 2 x 32A MCB ring...
  11. K

    Diversity for touring caravans

    With the increasing use of high power electrical devices in caravans, including I am told electric hobs! Has anyone any idea what sort of diversity one should allow for a site with five caravans with a 16A supply to each pitch? The owners are also considering a 10A pitch supply which would...
    • KFH
    • Thread
    • diversity electricians vans van vehicle
    • Replies: 2
    • Forum: UK Electrical Forum
  12. G

    diversity

    Hi all was wondering if you could clear something up for me. Have a meeting with an electrical designer in the morning for a project I'm working on, I'm not involved in the electrical side as such just been asked to go along as another input/person around the table. My question is as follows:-...
  13. N

    Cooker circuit and diversity.

    Evening all. Customer needs a new oven and electric hob. The current setup is 6mm T+E on 32A MCB, RCD protected, about 8M run, reference method 100. The oven they are looking at is 10.5KW. I initially thought that was too much but after adding diversity it seems ok. Are my calculations ok as I...
  14. ray-bentos

    Can Someone Check My Diversity Calcs Please?

    Can someone please just check over my working & diversity calcs for the following CU change: Supply is 100amp TNC-S with 25mm tails, 16mm Main earth & 10mm bonding so all good there. Working from OSG Table A2: Working off number 9 (Standard arrangement of circuits in accordance with Appendix H)...
  15. N

    Inspection Job & Diversity HELP Please

    Hi, clearly a new boy with a diversity question to ask. I need to install two new circuits for NAPIT to inspect and am running into a bit of trouble at the chosen site. The issue is one of diversity with two Consumer Units, as firstly there appears to be no guidance on the loading of...
  16. Midwest

    Applying Diversity to separate Oven & Hob

    I'm trying to determine the appropiate load to install a separate oven and ceramic hob (in a domestic kitchen). Obviously I will apply diversity to provide a suitably rated protective device & cable. However, I'm scratching my head on how to apply the diversity: Is it: 1) Oven & hob total load...
  17. R

    cooker circuit max load 14kw

    Hi all Am started a kitchen for a customer who knows it all he does want any floor lifting etc to save on mess. But the situation is existing 6mm in, is in good condition but there is a hob and double oven wanting to go in. Now the hob is 7.2kw and the double oven is 5.4kw . I would usually put...
    • RichardMoore
    • Thread
    • cable circuit cooker diversity existing max
    • Replies: 6
    • Forum: UK Electrical Forum
  18. M

    Maximum demand / diversity (commercial)

    In preparation of wiring up a commercial premises (function rooms / bars / restaurant area) I am trying to determine to what extent the existing 60A single phase supply might need upgrading. I have not had to do this myself for a commercial premises, and I am wondering if the same rules apply as...
  19. S

    Underfloor heating

    Pricing a rewire where they want underfloor heating, through out the whole gaff. This equates to over 70 amps. Is there a simple way to bring to demand down, like some how controlling that the upstairs and downstairs cycle seperatly etc
    • surreysparks
    • Thread
    • diversity don't heating temperature underfloor underfloor heating upstairs
    • Replies: 12
    • Forum: UK Electrical Forum
  20. J

    Diversity calculation check

    Hello all Would someone please cross check my calculations? Cooker induction HOB ONLY, oven is on a separate wall with seperate 6mm cable. 4x elements 1400, 1800, 1400, 1800=6400w total. 6400w / 240v=27A 27A-10A=17A 30% of 17A=5.1A 5.1A + 10A = 15.1A plus 5A socket =20.1 A total Note the...
    • jimbobaroobob
    • Thread
    • calculation check diversity
    • Replies: 2
    • Forum: UK Electrical Forum

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