Recent content by J.C.E

  1. J

    Posi joist wiring ref

    Evening What ref method would you give t/e running the web of a posi joist? 100mm insulation below the posi joist then a MF and plasterboard ceiling below that Cable not touch insulation Cable touching:clipped to posi joist
  2. 32A91344-6D4E-4E88-99D3-9555BDD764F6.jpeg

    32A91344-6D4E-4E88-99D3-9555BDD764F6.jpeg

    • J.C.E
    • Media item
    • Comments: 0
    • Category: Electrical Videos
  3. J

    high current LED lights

    I think I have a better understanding of this now! So on the driver it will state a input current (so for the drivers in hand it is 0.15a) (this is the AC side- which the dimmer is concerned with) I have 6x drivers so a total of 0.9a- so I should be under the Lutron RA2 inline dimmer max limit...
  4. J

    high current LED lights

    Thanks These are the drivers https://www.ecopacpower.co.uk/led-drivers/constant-current-led-drivers/eled-15-ct-series
  5. J

    high current LED lights

    This week I nearly learned a hard lesson re this!! (using a Lutron RA2 inline dimmer to control 6x 700ma 13w LED fittings) https://www.lucent-lighting.com/site/assets/files/6952/2605-cb-tl-1.pdf So I thought 6x 13w=78w- thats fine its well within Lutrons stated 150w of LED load. But after having...
  6. J

    200a tpn for house?!

    I think I am going to price for 200a a 4c 120mm 90deg +70mm CPC for 100a a 5c 35mm 90deg
  7. J

    Swimming Pool- bonding

    bond it back to the DB or just link all metal parts together?
  8. J

    Swimming Pool- bonding

    Afternoon An internal swimming pool (recessed into the concrete floor of a basement in a domestic house) The pool has a metal frame However all pipes feeding the pool are plastic Am i right in thinking I do not need to bond the metal frame as it is not a extraneous metal part ? nor do I...
  9. J

    200a tpn for house?!

    some of the circuits will be three phase- like car charger, GSHP, ASHP etc should you only divdide 189/3 if all circuits are single phase? Am i right that the swa from kiosk to house (40m through underground duct) so ref method D for three phase cable: Will need to be 150mm 4c with a 120mm...
  10. J

    200a tpn for house?!

    Can i scratch your head (bare in mind biggest i have done is 25mm 4core ?) I am tendering for a big house new build I think they already have 100tpn (But in a kiosk 40m away from house) And i think they are doubting its big enough now (they sent max demand table below) So they are asking for...
  11. 22595E99-DF8F-47AF-923D-C8A8D392BDC2.jpeg

    22595E99-DF8F-47AF-923D-C8A8D392BDC2.jpeg

    • J.C.E
    • Media item
    • Comments: 0
    • Category: Electrical Videos
  12. J

    basement conveyor belt skip- lighting

    Evening Been asked to light up a road hoarding covering a skip for soil of a basement dig- not done this before. Am I correct in thinking it is common practice to just take 110v builders lights over to it- rather than taking 230v over a public pathway! Thanks J
  13. J

    Zero rate vat to sub contractors

    https://www.gov.uk/vat-builders/new-homes just need to know if i pay for vat on a sub contractos invoice to me (who is not charging vat)
  14. J

    Zero rate vat to sub contractors

    Morning guys I am doing some new build flats that qualify for zero rate vat. So I am charging vat at zero % to the main contarctor. However I have a lad working for me (labour only) on the job but he is VAT regiestered. I deduct his CIS from his invoices to me. Do I pay him vat or should he too...
  15. J

    electrical window wiring/control

    dont think that will work in my situation?? that switch says 100-230v? i am trying to switch 12v also your switch looks like it needs 3core going to window (O,C,N) I do no have this- i just have a +&- from window 1 to a cupboard I have 230v in and same for a 2nd window So after a 230v to 12v...

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