Recent content by Davehaywire

  1. Davehaywire

    NVQ HELP

    1.what regulations from bs7671 do you apply to types and uses of wiring sytems, wiring enclosures and equipment Am i correct in saying chapter 52-521, but i cant find anything about enclosures or equipment? 2.where do you find out about principles of electrical thory which allow for the...
  2. Davehaywire

    NVQ HELP

    hi i have a few questions regarding nvq level 3 cant get my head around some questions anyone know of a helpful website to help me understand the question a bit easier thanks
  3. Davehaywire

    what type of fuse/ka/max zs is this to input in cert?

    hi can anyone tell me from this picture what type of fuse this is? bs88/1361 etc? it says on it bussman 200A 200MJ30-7 im trying to find the max zs for this type of fuse and the ka if anyone could come up with the right info, i would be very grateful thanks
  4. fuse.jpg

    fuse.jpg

    • Davehaywire
    • Media item
    • Comments: 0
    • Category: Electrical Videos
  5. Davehaywire

    Awa cable? Any information would be helpful thanks

    Yes I can see the outer core is copper but I can’t See if it’s aluminium inner core, it’s terminated. What would the csa of the outer copper sheath be , if the inner core is aluminium 25mm ,(this is being used for cpc and neutral
  6. Davehaywire

    Awa cable? Any information would be helpful thanks

    doing an eicr I noticed the cable feeding the service head on 3rd floor from ground floor is a 1x25mm awa cable From the service head 3rd floor it’s your normal tails to dB in flat So the awa cable is being used as below The inner core used as line The outer sheath (unsure on mm size of this...
  7. AB8A8698-EC2C-44AF-B171-BA0126E28254.jpeg

    AB8A8698-EC2C-44AF-B171-BA0126E28254.jpeg

    • Davehaywire
    • Media item
    • Comments: 0
    • Category: Professional Electrician
  8. Davehaywire

    PFC removal industrial unit

    Hi yes thanks managed to get hold of manufacturer he said the same , no nasties and discharge resistors Thanks for advice
  9. Davehaywire

    PFC removal industrial unit

    Thanks this is the pfc in question
  10. 4C07ABF4-6786-4D96-A614-5E73C97411F0.jpeg

    4C07ABF4-6786-4D96-A614-5E73C97411F0.jpeg

    • Davehaywire
    • Media item
    • Comments: 0
    • Category: Professional Electrician
  11. Davehaywire

    PFC removal industrial unit

    Hi Been asked to remove a pfc unit in an industrial unit Has any1 had any experience in removal of a pfc unit and if so is there a safety procedure to follow and a way of discharging the unit correctly Any advice would be great
  12. Davehaywire

    correct order of testing- digital copy

    hi I dont suppose anyone has a digital copy of correct order of testing i can just print off by any chance? thanks
  13. Davehaywire

    Mccb advice

    Hi looking to select the correct mccb for a 20kw TP pasteuriser within a kitchen the piece of equipment has inverters within it can you adjust a standard Schneider mccb to allow for a (would it be a high inrush for inverters)?
  14. Davehaywire

    3 pole dol starter with overload for a sp motor

    Hi Looking for a wiring diagram for the above anyone have one? Cheers
  15. Davehaywire

    New build ring circuit regulations -help please

    dual rcd 10 circuits Oh and the cu is the old hager plastic cu with the grey/blue flapped lid with dimples, nice to see they are using there old stock up 2 weeks before the metal cu's have to be installed !! we have been installing metal ones all year, otherwise as soon as jan comes the cu will...

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