supply

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  1. J

    Double pole or Single pole + Neutral for domestic extension supply?

    I've been carrying out quite a few domestic extension first fixes recently which involves providing a power supply installed from the properties mains. I have always just Henley blocked from the properties main consumer unit tails into a 63/80/100A BS-88 fuse Main switch board then from the...
  2. K

    Lights - Why is the my supply switch controlling my new one?

    I've taken the supply from a neighbouring light [power source = outdoor lights] and this now controls the old and new switch as follows: When I turn on the new lights the outdoor lights come on with a low glow When the new lights are turned on and I turn on the outdoor lights, this turns the...
  3. J

    Transformer/power supply required - difficulty in finding

    Hi all, its been a fruitless task task thus far. I'm trying to find a transformer with a perculiar output pin config for 24V and 0.1A, please see picture. The ref on the 'plug' is cp39b0240v0100b. Any help welcomed? thanks JP
  4. V

    How to supply a garage with 32 Amps for a car charger and another 32 Amps for sockets?

    Currently, I have a side garage port (with a garage door, but open on the garden side) supplied by a 2.5mm2 radial circuit. The plan is to convert the port to a proper garage next year. As the bedrooms are currently under refurbishment and the floorboards easily accessible, I would like to make...
  5. C

    UK Generator connection to mains supply questions

    I want to use a manual change over switch to safely connect a 21kVA single phase tractor PTO powered generator to my mains supply in case of power outages. The cable run from the generator to the outside mains incoming box will be about 40 meters. I intend to use 16mm SWA for that run. The...
  6. Joules

    My electrician wants to remove the inverter's supply PE and...

    ...Replace it with a connection to a ground spike via the heat sink. The 1.5kW GTI has no off grid capability. This separates the house PE from the inverters but is it the right thing to do? New to the forum, this is my first post.
  7. D

    High Ze on tns supply

    High Ze on a tns supply. It’s 1.48 ohms. Weird as I did a Ze here 4 weeks ago and it was 0.50. Do DNO come out for a Ze that high what is likely to happen when I call them? Thinking of going home to double check tester is working ok at home before I call them. Thanks
  8. G

    UK Datasheet for Chint NHB2-100UK Supply Isolator

    Hi all, working at a house where a British Gas have installed a Chint iso off their meter. The isolator is a Chint NHB2-100UK 100a unit but Google and Chint’s own website are unable to bring back a spec sheet for the switch (photo attached). Does anyone know what torque the terminals need...
  9. E

    Stop Dc back feeding into Ac supply

    How can I and where should I install in circuit a diode? Diodes? Or any other device that could stop DC short to chassis on my RV from back feeding when i plug my 120 volt 20 amp system into RV which is causing havoc in damage to the A/C gfci breakers frying them constantly ? Also this will...
    • Electegrity84
    • Thread
    • backfeed diode feeding supply
    • Replies: 5
    • Forum: UK Electrical Forum
  10. A

    Texecom 8 compact power supply on boat

    Hello, I am fitting a Telecom 8 Compact burglar alarm system to a boat. The boat has both nominal 12v DC supply (ie up to 14.2 v when engine running) and a regulated 12v DC supply for electronics. I dont want to power it with the inverter so 240v is not available. My original plan was to...
    • Andy J
    • Thread
    • compact power power supply security alarms supply texecom
    • Replies: 2
    • Forum: UK Electrical Forum
  11. C

    Solar Panels Barn Earthing for Solar, 80 Meters from Cut Out

    I’m installing 20KW of Solar on my Barn roof, The barn is fed from a 3 phase supply originating at the house which is 80 meters away. I’ll be installing some 35mm 4 core to minimise the losses to <1% volt drop between the barn and the point of supply located at the house. The Earthing at the...
  12. B

    Caravan supply help..

    Youngest daughter has decided to return to the nest after several years of living in the big city, now that she is permitted to work from home most of the time. She's bought herself a mobile home as an office, and wants to set it up at the far end of one of our gardens/orchard. I have to connect...
  13. T

    What sort of USB power supply does this fan need?

    Do you know what type of USB power supply this fan needs...and what power level it is? https://www.ebay.co.uk/itm/334007533081?var=543042548590
  14. D

    Kewtech k71 supply lead

    I recently moved and have lost the supply lead it's 5 years old.has anyone got one or know which way round the n coc and neutral are so could make my own one Dave wire electrical ipswich 33 years an electrician
  15. D

    UK Supply to 2 outbuildings

    Hi. I have a shed with its own small consumer unit connected by underground SWA to a connection box on the outside wall of the house. This in turn is wired to ts own MCB in the consumer unit of the house. I am going to erect another outbuilding some distance away from the shed. SWA for this...
  16. HappyHippyDad

    New supply to garage. DNO have not fitted fuse.

    My customer has had a completely new supply installed to his garage. The DNO has not put a fuse in the cut out though. I'm guessing he needs to contact the DNO to discuss? I realise it would be very easy to pop a fuse in, but apart from this not being allowed, I also wouldn't know the size of...
  17. L

    Electric supply to new annex

    I'm converting my old garage into a two bedroom annex. At its nearest point it is approx 10m from main house. I plan it to be all electric, UFH, electric shower, electric hot water, cooker. Now, I think there are 2 ways of supplying power to the new annex: 1. Run 25mm SWA tails from henley...
  18. J

    Can i make a over head supply tncs

    I have private two wire overhead supply from a tncs pole and meter remote 8th mile away can make this tncs at house
  19. JoeMagin

    Selectivity at Static Caravan

    Hi all, Just a electrical student here, and on holiday at a caravan park so, of course, i go snooping about a bit for the electrics. I notice the caravan at the hook up is fed off a 30mA RCD and 32A MCB. The board within the caravan contains a 30mA RCD and a 32A ring. As im just learning I...
  20. HappyHippyDad

    What power supply for this large 12V Fridge/chiller?

    My customer wants to fit a large 12V chiller at her farm. The supplier has said it is 12V and 80A. A couple of questions.. 1. What sort of power supply unit would you use for this? See link below of the ebay item. 2. Is this going to be 80A at 12V or 80A at 230V? At 12v it would only be...

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