diversity

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  1. timhoward

    Halogen Lamp heating system, diversity?

    I'm in the middle of preparing a quote for installing 12 x 3Kw and 4 x 2Kw halogen heaters in a church. The system design was provided by a specialist company. This sort of thing: The system is specified to be split into five zones to be turned on depending on occupancy. Unless the church...
  2. P

    Diversity and multiple consumer units

    Hi everyone, A diversity question concerning 2 consumer units fed from 100amp DNO supply Background, So I have an 18th Ed compliant consumer unit (DB1) fed by a 25m 2 core SWA into a IP rated box, the SWA is then split into 2*25mm tails feeding DB1 and a small 3 module enclosure incorporating...
  3. R

    What diversity factor to be applied to a three phase food holding unit?

    Hi there currently doing some diversity calcs for college work and had a query about what diversity factor to apply to a 16A 3 phase commercial food holding unit. I'm thinking that this equipment will be only used in the day time(breakfast, Lunch and Tea (what we call the evening meal- dinner...
  4. M

    Help an idiot out? Diversity and manufacturers' instructions.

    Hi all, I'm getting a 32a induction hob and a 13a oven installed as part of a kitchen refurb. The existing cooker circuit is 6mm protected by a 32a mcb. After a long trawl through various forums I think the prevailing view is that this is fine to use this for both appliances, because of...
  5. Pretty Mouth

    Caravan diversity question

    What allowance for diversity, if any, would you apply to caravan hookup sockets? The circuit will have just one hookup point, with two 16A sockets. It's a fair distance from the CU, so voltage drop is going to be significant. It would be good to keep the cable CSA down if feasible.
  6. The apprentice

    Diversity (hot tub) & (sauna)

    Hello there, I have a sub main in a small bunker that is supplied from an in house 50A supply that then supply’s a 6mm2 SWA that supply a small board that feeds a sauna and hot tub and also a 32 A commando socket and some small led lighting they are Adding in 2 x 3kw Emerson’s for a shower can I...
  7. H

    Maximum demand and diversity

    Hey guys I really need urgent help understanding this Basically I'm trying to calculate what the diversity factor/percentages would be for the following circuits which are inside a hotel: 3x 32A socket outlet circuit 2x Vending machine circuit Fridge circuit Dishwasher Servery food holding...
  8. Rockingit

    Diversity for a funfair?

    Due to a damaged underground SWA that would normally feed a sub main, I may have to place a genset temporarily to run a small kids funfair area at a park (so I assume lots of star>delta motors and variable speed controllers) I’ve three options for sizing this: 1. Add it all up and work with...
  9. cliffed

    Diversity the dance group?

    Revamping a Classroom for cookery,originally 9 cookers @ 10kw…adding 2 more total 11. Existing TPN DB 100 amps. Seems a bit overloadEd don’t you think…would you mention this to the Client..or just not install the extra cookers. We have no design input on this one,like I said originally 9 cookers.
  10. HappyHippyDad

    Oven and hob on same MCB and diversity.

    I've just spent an hour getting bogged down with the maths trying to work out diversity for 2 cooking appliances on the same circuit (32A MCB) and same isolation switch, I thought I would give my workings so others can use it as I wonder if some just assume you can still use the 15kW maximum...
  11. Rockingit

    Diversity - how close to call it?!

    Went and had a look at a brand new brewery just establishing itself, a virgin install in a new-built industrial block. They're fed as a metered sub-mains off a larger board elsewhere and been installed with a 100/3 board. Clearly, I'm about to find out more about the upstream characteristics...
  12. R

    Diversity Calc Commercial Dishwasher 6.5kW single element

    It is a 6.5kW thermostatically controlled water heater if you ignore the rest of the gubbins. So that would be a Purpose #6 for diversity ie: None allowed. = 28A. But you could treat if like a cooker too. Purpose #3 ie: 10A + 30% FL current over the 10A. = 15.4A What do you think? Thanks
  13. M

    UK Diversity

    Morning Nearly said lads then thought better of it so morning everyone. I've got to price for another shed job, I know you're thinking "so" But question, as we have established with my previous threads I tend to go over board but this time I need some advice on diversity For a change I know...
  14. Gavin John Hyde

    Diversity for Air Con units

    Trying to work out how to sort out the mess at a house where the person has numerous air con units, the guy has gone all out and has aircon for each part of the house, He now wants 2 car chargers at 32 amps each. doesn't actually have any 3 phase circuits they are all single phase. Has 5 socket...
  15. Z

    UK Electric Hob Diversity.

    Hi colleagues A friend of mine has purchased this electric hob for his kitchen. https://ao.com/product/bhii6015-baumatic-induction-hob-black-47830-39.aspx It shows on the spec that it has to be hard wired by a spark. So after calculating the amperage (5400÷230), I'm getting 23.4amps...
  16. J

    Pub/restaurant kitchen diversity

    Hi all, Not sure if I've posted this in the right place or not. Just looking for a bit of help please. I need to move a dist board in a gastro pub/restaurant ready for a new kitchen to be installed. I'll not be involved in the Kitchen install itself but need to make sure I put in a suitable...
  17. Pretty Mouth

    Diversity and induction hobs

    I recently had a discussion with another spark about induction hobs and diversity. He pointed out that an induction hob may have, for example, 4 X 3.2kW cooking zones (total 12.8kW), but due to internal power management, the appliance could never draw more than say 7.2kW, that being shared...
  18. S

    Diversity Factor for 3Ph instantaneous Hot Water in AS3000

    Hi, Just a question from AS3000 max demand diversity table C1 for instantaneous hot water. Will it be the same diversity regardless if it is 3Ph or 1Ph or higher current rating or less?
    • stormy
    • Thread
    • as3000 ausie elec diversity factor hot water water
    • Replies: 1
    • Forum: Australia
  19. J

    Diversity on a Ring Final

    Hi there, I'm just trying to get myself into cable calc and my first hurdle is demand and diversity. I understand the majority of what is coming across in tables A1 and A2 OSG but I'm just struggling to clearly understand what I should be using for demand on a domestic 32amp ring final...
  20. littlespark

    Diversity on cooking equipment

    Evening, all. I've got a kitchen coming up that might lead to more work with a local joiner... first job with him and I want to appear on the ball. Current set up is 32A MCB on RCD side of a split board, 6.0mm serving a regular cooker switch with only an electric oven coming off it. Hob is...

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