mains

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  1. Devil7

    Sub mains / distribution circuits

    Hi all, new here, just looking for a few pointers. I'm not doing this, just keeping my brain active in these weird times with things i've not learnt yet. How do you calculate cables etc for a single phase sub main (to a garage for instance) - is it the same as a cooker? Ib> In> etc etc?? TIA
  2. Steve888

    Loss of mains without tripping any switch

    Hello Early in the morning I lost the mains without any signs of tripping. The mains fuses was OK The 100A switch was OK All RCBO ok The loads in the house very low maybe 100W. The smart meter was powered OK I had to switch off and back on again the 100A mains switch to bring the mains back...
  3. B

    100 A mains isolater to Garage unit.

    If a want to spilt the tails after a 100A isolation switch does the 2nd DB ( a new garage unit ) have to have a 100 a main switch or is a 40a RCD OK ? I’m assuming because there is a 100a isolation switch then I don’t need a main switch in the garage unit. The garage unit will only be powering a...
  4. H

    Wiring a table lamp direct to a mains light switch?

    Hi all, was wondering if is possible to wire a 3 amp table lamb directly to a mains light switch? The light switch is used for an outside light has two brown wires going to the switch and two blue wires in a chocy block going nowhere? Thanks. Steve.
  5. L

    UK Help with mains ASAP

    There I was, just cooking toast when out of nowhere the toaster popped and sparked. Now all of the eletricity in the house has gone out sans the lighting and I need a fix ASAP because my poor gecko will be getting cold! I'm not tech savy in the slightest, the most I think I managed to do was a...
  6. J

    UK Switch

    I have a switch that is with a rating voltage of AC 250V/ 1A – can I use this to turn a standard desk light that is plugged in to the mains??
  7. N

    Sub mains for extended distance from meter to CU

    As the user name states, I am not an electrician but I am trying to be an informed customer when dealing with a friendly local sparky and the DNO/supplier whilst undertaking some major electrical works on my property and some advise on the best solution would be welcome. The works to be...
  8. D

    supply to brick lights from mains electric gate?

    Hi all I have only recently qualified and would appreciate some advice re wiring PIR brick lights and surface mounted PIR lights on two electric gate posts on either side of sliding gate. My question is can I break into the incoming 230V supply to the gate controller if I use a fcu for lights...
  9. W

    Gym with lighting over 4/5 circuits and 2 mains

    Hello, currently working on a gym with 4/5 lighting circuits across two mains boards I’m wanting to put some emergency lighting in there and I’m wondering how I do that with this number of circuits across different rcds thanks in advance
  10. M

    Airlux Dishwasher mains cable plug

    Hi Guys The image is connected to the plug on my Airlux dishwasher. It's blows now. I can't find it on line to get it for my electrician. If possible I would [refer to replace this before getting new dishwasher. I have seen a replacement on Espares but it's not precisely the same. Any advice...
  11. Mike Johnson

    Fluke 1633 alternative mains cord

    I have been asked by a good friend to check out the electrical installation in their French holiday home, whilst I am there (free use for test) what is so special about the Fluke mains lead that they want £40.00 for the EU version? I know it has a special plug into the unit, but c'mon £40.00 for...
  12. Marcus Vaughan

    Can anyone recommend a cutable mains voltage LED tape?

    As above really. I've been trying to source a length of mains voltage LED tape to fit behind a purlin, not being keen to try and hide a transformer/driver for 12/24v. Distance is 4.5m but everything I have found at mains voltage is cut by the metre. I know I can do better than that because I...
  13. A

    Consumer unit heights and mains tailsnew build

    are the consumer unit heights for a new build 1350mm and 1450mm. The services to the new build property will be on the front outside wall of the house meaning the tails will have to be passed through the cavity wall. Can I pass the tails up through the cavity wall to a reasonable height and...
  14. V

    1960s Florescent light instantly trips mains RCD

    Hi all, first post! I'm currently restoring a Rockola jukebox from 1964 and I'm very nearly there, there's a problem with one of the florescent lights which I can't seem to get my head around, one of the three florescent lamps the entire house out as soon as you switch the thing on. The...
  15. J

    TT supply with TNS sub mains

    Would like your opinions on the following setup. 300A 3 phase TT incoming supply feeding 15 units with 50A TNS obviously some link somewhere between Neutral and earth but haven't found it yet. I would think that each unit should be TT not TNS thoughts please
  16. A

    240v LED Strip Light on Mains switch

    Hi all, Hoping for some guidance, which would be much appreciated. I currently have some Florescent Lights under my kitchen cabinets operated by a light switch and would like to replace with LED strip lighting. I have purchased some 1 Metre 240V LED strip which is fitted with a 3A UK plug...
  17. L

    Mains connection problem?

    Hi all Maybe this type of question is not for this forum.. its just im struggling to get information Ive attached a map detailing a local supply network I need to have some idea where it would be possible to connect up to mains power supply On the map it is the building between where it says...
  18. T

    Removed these from a mains change today

    Evening all Picked out these bad boys from a few board changes the other day. Not sure if they are worth keeping?
    • TJC1
    • Thread
    • change collection crabtree main switch mains removed these today
    • Replies: 2
    • Forum: UK Electrical Forum
  19. Sparky10

    Radials V Ring mains

    Hi all, This may be a common topic and may already have been spoken about 100s of times so forgive me in advance. I have always wired in ring mains for my sockets up until recently.. I came across an install where all sockets were wired in 2.5 radials protected by 20A RCBO they had wired 3...
  20. V

    Landlords EICR and t&e sub mains without RCD

    Hi All Been doing a lot of EICR for landlords recently due to new legislation and agents i guess. One common issue im finding even with relatively new (10 years) old installations is a T&E sub main. Now some of these have a 100mA rcd .. or no RCD .. some are even wired in concentric cable...
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