supplies

  1. MikeM3

    Pirate Power Supplies

    In an earlier thread that I started about floating neutral, we had quite a discussion about, "Back Feeding my Flat", from a DIY, solar set up, I, unfortunately, wouldn't do this because my system doesn't have an earth, several people who replied to my various queries, all said not to feed any...
  2. N

    Isolation of TN supplies.

    I haven't seen a lot of discussion on this subject and have questions pertaining to isolation where TN earthing is present and any peculiarites which may exist between TN-S and TNC-S. I see mostly 3 pole main switches on TN earthing systems, but do see quite a few instances where all live...
  3. O

    2 supplies to single building

    We are refurbishing an empty commercial building at the minute and I don't do commercial stuff day in day out so not entirely clued up on everything. The building is one property, central entrance hall with two big offices left and right from the hall way, the hallway though has two meter...
  4. tee-eff-ten

    Two supplies, one cable- Regs?

    I have always been of the opinion that this was not specifically dis-allowed as long as the cable rating etc was correct and everything identified properly. To be more specific we're talking about 2x SP mcb's in a board using two cores for each circuit in a 4c cable, splitting at a junction box...
  5. L

    UPS 16amp power supplies

    Hi chaps Customer has asked me about installing a mains supply to a 16amp UPS on their server. The UPS hasn’t come with a power cord, the customer has searched Amazon for a 16Amp IEC C19 lead which comes with a 13Amp plug top, should it be supplied directly to the CU on a 16amp RCBO on a...
  6. T

    Block of flats, supplies to flats.

    Hi Guys, We are undertaking a large development and just want to get some ideas on how others would supply each unit. There will be a rising main, with potentially a rhyfield unit on each floor in each 'zone'. We have in past projects used SWA to supply each unit, with the rhyfield unit...
  7. M

    3 phase supplies for table & band saw

    Hi all, I have been asked to install individual three-phase supplies for a band saw and table saw. Having trouble figuring out the correct cable / breaker sizes required (I’m a marine electrical fitter and it’s been a long time since doing this sort of works). I currently have an Eaton...
  8. Shaun H

    What's wrong with this? It supplies an immersion heater, it's not the disconnected line & neutral.

  9. N

    Merge 2 three phase DNO supplies

    Hi all, I was wondering if you could help me a sort out the problem. Is there any way (or device) to merge 2 three phase electrical supplies? We have 3x100A from DNO and getting 3x200A additional. Is it possible to do that without involving DNO ? The power is for new build 28 flats, we have...
  10. A

    Laptop Power Supplies Trip RCD

    Hi, The RCD which protects my 16A ring main always "trips" when I plug/unplug a Laptop power supply. No other type of appliance causes a problem. I have 2 laptops with the external power supplies on leads which both cause this problem. I also have a similar 240v to 12v switching adaptor for a...
  11. A

    Who supplies rubber gaskets for 2 gang sockets?

    I need to fit compressible rubber or neoprene gaskets between 12 Hager 2 gang stainless steel flat sockets. The gaskets are needed because the wall has small marble mosaic tiles that have slight unevenness and grout indentations and I would like to minimise risk of water ingress. Must look...
  12. B

    Touring caravan supplies

    Anyone on here with knowledge or experience of wiring for a touring caravan/camping site, whose brains I can pick, please? I may have to design and install supplies to a C and C club certified site. That's a maximum of 5 touring caravans or motorhomes, plus 10 tents. There will be a sub main...
  13. Dan

    Are lorry drivers (or lack of) having an effect on any of your regular supplies?

    https://www.theguardian.com/business/2021/sep/04/hgv-driver-shortage-uk-firms-embark-on-the-long-road-to-plug-the-gap https://www.theguardian.com/politics/2021/aug/29/food-beer-toys-medical-kit-why-is-britain-running-out-of-everything...
  14. Deanosss

    Garden workshops/Shed supplies

    Hi All, I’m looking for a bit of advice with regards to a clients outdoor workshops. Would the diagram attached be a acceptable method of installation? One supply from the house into a DB (RCD protected Garage unit) in the first workshop then a supply from there into the second workshop with...
  15. Retroelectric

    Lighting power supplies.

    Hi all. The power supplies have failed for some Christmas / Fairy lights that are used all year round. Do you know if you can get just a standard transformer or driver for these things? Obviously the button to make them flash and stuff won’t work or will only like for like plug types have to be...
  16. A

    can I plug in a Kohler standby 14kw to my 50amp receptacle

    can I plug in a Kohler standby 14kw to my 50amp receptacle which supplies both rails in a 200 amp box (already installed interlock system for my box) installation is more than the generator!
  17. dlt27

    2 supplies to property and the one trips the other out!!

    Hi, thanks for any advice. I’ve got a local farmer who has single phase to the farmhouse and 3 phase to the farm and dairy etc. The problem he’s got is when he turns the milking parlour on the house RCD trips. I am a bit stumped as to why and how to remedy. I was thinking when he switches the...
  18. A

    2 x 3.65kw oven cable / supplies

    Evening all! looking for some advice, I’ve been away from the industry for a while now and domestic work’s never been my area of expertise! I’m changing 2 ovens for new which are rated at 3.65KW. I have removed the old ovens and found the connections, tape and connector blocks very nice! I have...
  19. G

    2 x 32a supplies into my fusebox on boat.

    I'm a novice but willing to learn. Go easy on me! re above. I have upper and lower rooms. Should I run two socket circuits or one? Total double sockets I have is 20. Boat is 15m long, 4m wide.
  20. B

    Oven supplies ??

    Is it a general rule of thumb that any oven below 2.9 kw go on 1.5mm flex and 13amp plug top? Any thing above 3kw has to be hard wired ? Thanks in advance
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