demand

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  1. UKMeterman

    Any news on the national grid fault that caused the south east and south London to flicker 12/01/17

    Hi, National grid seemed to have a big fault on the evening of 12/01/17 uk power networks were snowed under with reports of flickering lights across the south east and south London. Any news on the actual fault?
    • UKMeterman
    • Thread
    • demand east electricians london fault flicker grid lights london national news south south east
    • Replies: 10
    • Forum: Electrician Talk
  2. J

    calculating total consumption for each of the circuits and final maximum demand curre

    I have to calculate the total consumption for each of the circuits and state the final maximum demand current. downstairs :2 fittings with 5x 12w lamps,1 fitting with 5 x 12w 1 fitting with 10 x 12w,1 fitting with 1 x 60w,1 fitting with 7 x 20w 2 fitting with 3 x 20w,1 fitting with 4 x 30w and...
    • jan21
    • Thread
    • calculating circuit circuits consumption demand final fitting maximum total
    • Replies: 4
    • Forum: UK Electrical Forum
  3. A

    Demand load

    Could any one please tell me what I'm missing and how did they calculate that ....
  4. P

    Help needed with max demand calculation

    Hello all, i posted this in the electrical theory section but with no responses I thought I would post here as well - since originally posting I have spoken to ELECSA and they have basically said I can use any basis I want to calculate diversity so long as I document what I used and why which...
  5. telectrix

    for trainees

    a small exercise for trainees. something to get the brains kicked in on a bank holiday weekend. hypothetical scenario..... i have a DB supplying a flat. max. demand is 60A. it is to be supplied from an external meter enclosed in an approved DNO cabinet. the distribution cable length is 30m...
  6. Soulsurfer

    Max demand etc.. on renovation.

    Hi I am just doing a renovation / upgrade on a small house and as kitchen plus all downstairs was on same ring final I have broken it up into a separate kitchen ring and downstairs ring and renewed best part of the cabling as it was really old stranded earth steel looking junk cable and not...
  7. 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...
    • Powermanagement
    • Thread
    • calculating circuit circuits demand diversity phase really single total
    • Replies: 2
    • Forum: UK Electrical Forum
  8. 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...
  9. 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...
  10. S

    Demand of Solar Irrigation Pump is increasing in Bangladesh

    Irrigation is one of the major part of Bangladesh economy. In most of the area Farmers don’t have the access to grid electricity for well pump so demand of solar powered well pump is increasing. Currently, there are almost 1.61 million irrigation pumps running in the country, of which 1.34...
    • saikat2k2
    • Thread
    • demand million not uk panels pump pumps solar
    • Replies: 1
    • Forum: UK Electrical Forum
  11. R

    calculating demand

    a local pub i do alot of work for wants to build 6 pod style holiday lets in its beer garden and has applied to western power to see if the existing supply can cope with the demand the existing supply is 2 phase with a 200 amp fuse in each phase leading to a busbar system. ive been asked to...
  12. T

    EMF demand switches

    hello all I've got to carry out some work at a ladys house who is suppoisidly sensitive to electricity, (just like the guy off "better call saul") anyway I'm planning to spilt the two ring mains to four radials and fit four "demand switches" which are meant to isolate the cables when there not...
    • tom262
    • Thread
    • circuit demand emf switch switches
    • Replies: 11
    • Forum: UK Electrical Forum
  13. K

    Maximum demand a diveristy

    Hi i have a problem don't know how to calcuate maxmium demand with diveristy and without The circuit are: UP lighting 6A Down lighting 6A Up radial contain 3 double 16amps down RFC 32amps Shower 7kw 30.43A Cooker 28amps Could someone help me with that
  14. R

    help required - max demand after diversity 100a with a 100 distribution board

    Hi, i am attempting to do the 2396 exam and in the process of doing a practice paper. Qu. A distribution circuit is to be installed using a new three-phase and neutral 100A distribution board within an industrial installation. assumed demand per phase is 100A following the application of...
    • Richren
    • Thread
    • after board circuit demand distribution distribution board diversity fault max question required
    • Replies: 12
    • Forum: Commercial Electrical Advice
  15. T

    Maximum demand

    Help!!! I've been asked to work out the maximum demand for a new property for the DNO, I believe I have worked it out correctly applying diversity (something I've hardly looked at since college) but it seems abit high. there will be 12 potential circuits. 1. 32amp cooker 2. 32 amp hob 3. 32 amp...
  16. 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.
  17. L

    Relay Help

    Hopefully someone can help me out please. We have installed a biomass system which feeds multiple properties. Each property has an s plan system. A 2 core signal cable is connected to the orange and brown cable on the 2 port valve at each property which sends a volt free signal back to the...
  18. Y

    Maximum demand calculation

    Hi. Question regarding maximum demand calculation. I have a customer which wants to have a second kitchen fitted in the house. Is this at all possible? There are two consumer units in the house. One which has following circuits: oven 40A hob 32A ring basement 32A ring gtound floor 32A ring 1st...
  19. A

    Anticipating maximum demand

    Hi guys, I am after bit of advice regarding calculating the anticipated maximum demand. I dont know a lot of details about the install apart from: It is a 3 phase pme, 100A cut out. Light industrial use. I am calculating small power and lighting only, no mechanical. Lighting will be LED. The...
  20. 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...

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