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supply

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  1. S

    3phase surge suppressor connected to a single phase utility supply.

    I am using a 3 phase 4 wire surge suppressor on a single phase 240V mains. Is it still okay or will it have some back feed impact on the mains system?
  2. J

    Why is my power supply giving more than it says it should?

    Hi, I'm new to electronics and exploring the basics so please please forgive me. Currently I have a simple circuit with a 12V,1A PSU, bulb and mulitmeter. When using the multimeter to meaure the bulb's resistance I get 4.5 ohms and then 12V for the voltage across the bulb. According to Ohm's...
  3. G

    New 3 phase supply

    I am in the middle of installing a new 3 phase system for a small bakery production area, new building, 200 KVA supply in total. 200 TP for workshop plus 4 separate 60 amp single phase supplies for new flats above new workshop building. Checking with UK Power Networks they inform me that the...
  4. M

    Supply to garden room with hot tub

    There’s is currently a 3 core 6mm swa installed/40amp breaker, the garden room has its own consumer unit with a 32amp ring circuit and 6amp lighting. The ring circuit has a 1kw heater and a computer/ printer so not a lot of load and the lights are led -total 60w. They now want a 32amp hot tub...
  5. C

    Garage Block Supply and EV Charger Install Advice Please!

    Hi All I'm in the process of getting quotes to get an EV Charger installed, and hopefully at the same time power to 14 residents garages. As it stands, the expectation is the majority of use in the garages will simply be for lights as they are too small for modern cars. There will undoubtedly...
  6. wwilts

    UK New electric supply connection

    New 46kVA electric supply to new backland dwelling (37m from footpath). Mains cable runs along the footpath at the road access. Which option would you choose and why? Option 1 Meter box near footpath. Own fuse and armoured cable (>30m distance) underground to new dwelling. Option 2 Meter...
  7. 1

    Garage supply suitable

    Hi there ! so I need some sockets in my garage and it’s only about a metre away from the house (kitchen sockets on internal side) I’m going to spur off my kitchen socket into a fuse spur and then run some 2.5mm into conduit and out to the garage (weatherproof box , saddles used ) also going to...
  8. S

    Supply feed to holiday home

    Hi all, Customer wants to install a holiday home in one of their fields 300m away. They want a 63amp supply so I just ?? Quick calc comes out at 95mm swa not sure what size drum it would need. I suggested they should ring sse and get a quote for a new supply of off the power pole at the house...
  9. D

    Supply chain issues …

    https://uk.yahoo.com/news/building-supplies-shortages-leaving-homes-172700911.html I know a few people that have been waiting months for bi-fold doors etc
  10. L

    Mixing TT and TNCS supply systems

    Was informed of this incident last week. A row of period houses in an older part of the city. All on TT earthing. One gets rewired. TNCS is obligatory for all new installations. DNO suffers a neutral break close to the trafo. All 23 houses now divert their neutral current back through the...
  11. M

    Polarity testing supply

    I'm probably missing something obvious here but if the polarity is reversed upstream of the cutout How are they getting 230v between N-E ? Surely they're still linked at the cutout ?
  12. L

    EV Charger - Shared supply

    Hi My daughters getting an electric car and has asked if we can have a charging point fitted to our house, it wouldn’t need to be anything really fast because it would just be occasionally over night. We’ve had a look in our meter box and it seems like my house and my neighbours are sharing...
  13. A

    New garden shed supply and garden sockets RCD protection?

    Hi, I need some advice on a garden supply project. An existing small garden shed is being replaced which had a supply to it for a light and two sockets , and a radial socket circuit which continued around the garden. The old installation had a 6mm supply coming into a 63A 30mA RCD as a main...
  14. W

    UK Can you buy your own Supply meter?

    I have a 3 phase client with SolarPV who needs a 3 phase smart meter installed to be able to register for Smart Export Guarantee (SEG) payments. He tells me that 3 of the 'big 6' wont install a new meter - his existing one is not Smart. Can he BUY & install his own Smart Meter - subject to...
  15. B

    Supply to new shed

    I'm planning to build a shed in the far RH corner of the rear garden. It will have a reinforced concrete base, wood structure, flat roof and be just under the size that requires building regs approval. It will take me some time to build the shed so it's not yet time to get a local electrician...
  16. B

    Hot tub supply

    Hi, having new hot tub installed, PME supply on 40A breaker 6mm twin clipped direct in loft down to 32A isolator, got some 10mm 2C laying around, and gonna use swa as earth from isolator will that be fine, (thought I’d ask not sure what these companies are like and I’m not around when they...
  17. bigspark17

    Ring doorbell power supply

    Customer wants the ring wired in instead of batteries, has anyone else done this? What type of transformer is required?
  18. D

    Supply Issues Building Materials ...

    https://www.bbc.co.uk/news/business-57247757
  19. K

    Bench Power supply question

    Hello all, I'm looking for some advice please, I'm in the market for a bench power supply and I've seen the Kungber DC Power Supply it states on the rear it's ac230v output 0~30 /0~10A Fuse 3A, I think these power supplies are made in America, I wondered if it would be ok for use in the UK...
  20. M

    UK Electrical PLC Control Panel

    We have a Electrical PLC Control Panel that has to supply 45 Fused Spur units, do I need to protect these with an RCD, we have a 10A Type D MCB at the moment. Each Fused spur controls an electronic Volume/Pressure controller which is rated at 130mA.

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