supply

  1. mikehenson

    UK 3 Phase Supply

    I have recently become involved with our local church when I became aware that the installation was 3 phase. Looking at the meter I see that phase 1 is using 60%, phase 2 using 48% and phase 3 zero. I was always under the impression that 3 phase supplies should be balanced?
  2. KevHardy

    Can a dodgy electric supply cause a TV fault?

    Hi, turned on (LG) TV this morning and got a 'Select Item' screen and the volume graphic flashing constantly. The remote works and you can select menu items but it returns to the 'Select Item' menu shortly after. I looked online and some suggested faulty power or HDMI cables, so I detached...
  3. TurnerElectrical

    UK ASHP Supply & CU Setup

    Evening all, Just after a sense-check before I commit & send the quote. I’ve been asked to run in an SWA to feed a small CU that’ll sit inside an extension on the side of the house for the ASHP from a Tesla Gateway. The customer has said the heat pump guys have asked for 2x 16A & 1x 6A...
  4. G

    Electrician Jobs TT supply for hot tub

    Hi, I have recently had a hot tub fitted and am not comfortable with it being supplied directly from TN-C-S supply. I’m looking for someone to modify to TT, but struggling to find anyone locally who can help. Location - Warrington, Cheshire. Thanks.
  5. E

    Questions regarding garage supply.

    I have been asked to supply a garage/stables with some sockets, they are reluctant to have a CU due to cost and will be converting the whole space completely in the next 5 years or so and will do it ‘properly’ then and they just want some power out there for now. There is a 32a MCB on the main...
  6. T

    Control circuit supply

    I have recently purchased a used three phase oven in good working order. The control circuit is 220 v and is supplied from one of the phases and a neutral direct from the mains board. I have been advised that for, safety reasons a 440v/220v transformer would have to be installed instead. Is...
  7. R

    UK Safe Summerhouse Supply

    Good Evening Folks! I recently started on my house for an Outhouse/Summerhouse 35m away from main Property. It requires :- x5 Double Sockets x2 Strip Lights The sockets will be used for Televisions and Charging. I have 2 ways i’d like to to this. A 6mm SWA from Main CU/32A RCD clipped...
  8. S

    UK Is the main fuse head satisfactory protection for SWA supply cable?

    Commercial/Industrial installation. Summary of installation: Main feeder pillar contains TNCS incoming supply single phase 100A main fuse, 25mm DNO tails, meter, 100A double pole isolator switch, 25mm tails/16mm CPC to 63A rotary isolator, 10mm SWA cable 25m run to digital advertising panel...
  9. lozarus

    Providing Lighting from Motor Supply

    Apologies for the vagueness in the title. You'll have to forgive my ignorance on the below too - I'm only just touching on 'industrial' as my work is generally more ' commercial'. I'm faced with a small pump house - rainwater sumps which takes the site rainfall and pumps it out. As an aside -...
  10. Gutsy-Fungus

    Electricity DNO Supply installation outdated and UNSAFE?

    Hi folks, Moving into my new property in a couple of weeks to find a concerning electrical installation in the cubby hole underneath ther stairs. I have attached a couple of pictures of the installation. Does this main feed from the DNO (#3) look safe (left hand picture)? It is corroded and...
  11. J

    Removal electric main supply to apply a waterproof membrane then reinstalled

    Does the electric main supply need to be completely taken off to apply a waterproof membrane or can this this be painted around and still maintain the integrity of the waterproofing?
    • josephine
    • Thread
    • electric supply waterproof
    • Replies: 6
    • Forum: UK Electrical Forum
  12. P

    UK Have a washer and dryer with related power supply issue

    Have a washer and dryer that are plugged into separate sockets and both have 13A fusesl The electrical wiring passes through the washing machine socket and then on up to the the dryer socket above. There was no power to the dryer so I changed the fuse in the isolator and now it works fine...
  13. tony9i9i9i

    Economy 7 supply

    Hi all, as I said before I came back to the trade last year. I've been on a couple of jobs recently where the no longer used, cancelled, "cut off" Economy 7 supply was not exactly dead, in both cases testing just over 12V across the tails. Has anyone else noticed this?
  14. I

    UK Does my UPS need a dual input supply?

    Hi everyone, For a UPS serving as the secondary supply for life safety loads in a residential building (such as a fire fighting lift and sprinkler pump), would a dual input be required as shown in the photo below, or is a single feed sufficient?
  15. Tommyp100

    UK New supply to granny annex

    Hi, need more advise as getting two different views from electricians. Ty Detached double garage 10m from house, split equally into garden room and garage on 32a supply from cu in house. Looking to convert into 30m2 granny annex with small kitchen (induction hob, single oven), shower room...
  16. A

    Overhead 240V Supply - How is Earthing Provided?

    Hi, Posted here as I'm not an electrician, not because it relates to anything I'm considering "Doing Myself". My late parent's house is supplied by overhead 240V, and I was puzzling over how earthing is provided. As far as I can see following cables it goes .. Two overhead cables to the house...
  17. timhoward

    Domestic supply advice

    I'd appreciate the wisdom of domestic sparks here... End terrace early 20thC house: Supply: I've not seen the likes of this before in a house and had concerns about the apparent single insulation so thought best to call DNO and check, better safe than sorry after all... At first despatch...
  18. C

    Supply question

    Hi, just looking for advice. Ive been to look at a Fire alarm install job. While checking where i will take my supply from. 3 phase sub board, i wanted to see where its supplied from and origin etc. It turns out the Electrician has wired the sub mains board from an old redudant 3 phase power...
  19. A

    Is it a tt supply

    Might be a silly question, but can a tt supply come into a property via underground . This property in question, has no overhead cables supplying it but looks like it might have an earth electrode somewhere. Thanks.
  20. T

    Help re new 3ph 200KVA supply CT meter provision

    Hi all, So my factory needs more power, currently 100A/3p (70KVA) => 400A/3p (200KVA) UKPN wont upgrade existing supply and are insisting on new supply, not a problem as such and is ordered. They are specifying a CT Meter will be required, again not a particular surprise. What I cannot fathom...

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