supply

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  1. GeeWizz12

    When to isolate incoming supply to DB

    I always turn off main switch before removing cover or doing any work in a DB, but when should incoming supply be isolated ? When placing a clamp-on ammeter around an incoming phase conductor in a 3 phase board a spark to board casing occurred. Later found to be pre-existing damage to insulation...
  2. Jimmy1234

    Looped Supply Question?

    Am I right in assuming this is a looped supply and therefore the end to my ev charger dreams? https://ibb.co/QYm7Btv
  3. H

    RCD without neutral 2 phase supply

    Hi everyone, Quick question can you fit an RCD without any neutral connections? If I have a 3 pole circuit breaker which has all 3 poles terminated with a 3 phase supply (L,L,L excluding neutral or earth) on the primary side and I am using only 2 phases on the secondary side (L,L) to create a...
  4. S

    Single phase and 3 phase supply to same equipment

    I have a single phase stainless steel pasteuriser that has two control boxes attached to it. One box houses the control for the electronics and motor for the mixing paddle. The other box houses the supply to the water jacket immersion heater. The immersion heater is 1.5kw single phase and is...
  5. M

    Is it possible reverse polarity on a supply?

    Having a brain fog on this Is it possible to reverse polarity on a new connection or a meter swap and have it to go unnoticed ?
  6. I

    Spur line (non ring) on TT supply question.

    Hi Guys, Long time member and not a regular user here. I do pop in here when the odd unknown pop's up and unable to locate an electrical dilemma and cannot find a person that has the expected knowledge and can explain and help, as yet unable to find information even from respected persons. Let...
  7. B

    New supply to Combi Boiler

    Hi, I'm having a new boiler fitted in a new location. I need to provide power for the boiler which I'm looking to do myself. Boiler: Ideal Logic Max 35KW Combi I've researched the electric supply requirements from the manufacture (image below) My consumer unit has a spare Contactum 7106B 6A...
  8. ben8_n

    Cabinet for mains supply

    Hi all, any recommendations for neat and complaint ways to "house" a new supply -- the main electrical fuse, cut out, meter etc that on our house is inside the house near the front door. It's currently inside a cupboard that needs to come down, but am assuming I can't just cover with any...
  9. H

    3 phase 400v supply to 2 phase supply

    Hi I have a question hoping I can get some help. I wanted to know if there is a 400V 3 phase supply (A/A/A) terminated on the primary side of a TMD breaker can you take 2 phases from the secondary side of the breaker (A/A) to create a 400V supply only excluding E/N and use to power up your...
  10. baldelectrician

    An 80A supply is now a 100A supply- discuss

    Got an EV (Nissan Townstar EV) in my house, has a Zappi EV charger installed (by myself) and notified via ENA form to Scottish Power energy networks Now at the outset my house is older and they could not identify the cable size and cut out fuse size During the intial call I was told that SPEN...
  11. M

    Wiring supply in top of Isolators RCDS and mcbs

    When shouldn't this be done ?
  12. J

    UK Installing 50A Hot tub supply

    The earthing arrangement where the hot tub will be installed is formed in the TN-C-S system. I want to install the sub-main distribution circuit from the main house consumer unit to the outside of the building to have a power source for the final circuits: hot tub, sockets and lights. The supply...
  13. S

    220 volt supply problems

    Hi guys. I was a commissiong technician before I retired. Hardware and software industrial automation. Miss the work but not the endless travel/ airports hotels etc. Those that know, know what I mean. I retired to Thailand 220 - 240 volt single phase 50 hertz supply here. Im used to 3 phase or...
  14. A

    Meter installer won't work on my supply

    Hi all -- full disclosure I am a 'DIY-er' but wanted to post here for greater visibility seeing as I certainly won't be doing this work myself... I'm in the early stages of getting my house rewired (estimates) and during one initial visit, the electrician pointed out that I would need a way to...
  15. S

    205v ac supply to EV charger

    Hi I have a job at work, an ev charger keeps stopping functioning, the company that looks after it has been out and said its not there problem, the supply voltage is 205v ac, (I still need to check this) but is there a step up transformer out there that that can increase the voltage to 240v...
    • spamwize2
    • Thread
    • charger ev charger supply supply to
    • Replies: 8
    • Forum: UK Electrical Forum
  16. O

    Income supply cable on the outside of my wall in the porch…

    Hi all, The service cable is on the outside of my wall in the porch. What’s the best way to cover it with complying with current regulations? Would it just be a case of capping it and blocking it out? Many thanks
    • Op!1234
    • Thread
    • cable income outside porch service supply wall
    • Replies: 4
    • Forum: UK Electrical Forum
  17. I

    Bonding Size for Old Incoming Supply

    Incoming supply on our job comes into the building and then the tails from which go into a switched isolator with 200A fuses fitted. No idea what size the incoming fuses are or incoming conductor sizes. Would have to contact the DNO but not sure whether they would give that info to anyone or...
  18. B

    Buying a new house - is this too much for a domestic supply?

    Evening, I’ve just put an offer on a house without thinking too much of the electrics. It currently has 2 electric showers and an electric oven. If we buy it I’d like 2 x 16A commando sockets installed in the garage so I can run my air compressor (2.2kW) and MIG welder. I calculated that the...
  19. H

    Supply cable through separate flat

    Hi all, quick question - I have to replace a lateral supply cable where the existing one runs through the ceiling of the basement flat and up through the floor into a communal hallway to an old Ryefield, feeding 5 properties. The issue is that the building is listed and I'm being told that...
  20. V

    combi microwave 2900w on switch fuse or 16a supply?

    when installing circuits protected my mcb's , i have always used the 80% rule. eg a lighting circuits where the load won't exceed 80% of the mcb rating. i have a combi microwave. max 2900 watts . 2900/230 = 12.6 Amps. does 80% apply to cartridge fuses? i guess this could be classed as a...

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