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  1. spamwize2

    205v ac supply to EV charger

    Thats great I will do that tomorrow thanks for your advice
  2. spamwize2

    205v ac supply to EV charger

    It is in a university, the supply is from a main intake which then goes through a filter with a pfc and smoothing circuit, resulting voltage output is 380v (seems pretty constant with the filter and pfc) I would presume from there it will goto a section board. The cable run seems to be about...
  3. spamwize2

    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...
  4. spamwize2

    IR testing through transformer

    Hi all need some help, I've got a panel to test 400vac to transformer but after step down 110vac, do i megger it all at 1000v or just ignore transformer and megger at 250vac?
  6. spamwize2

    Inspection and Testing

    ok can you show me
  8. spamwize2

    Inspection and Testing

    Industrial I&T is not a legal requirement they have guidelines to follow and if we dont follow them and someone gets hurt or killed then it falls under HSE act 1974 then we will be done.
  9. spamwize2

    voltage labels

    Thanks all so going with that, I have specified diferent voltages inside enclosure with stickers but outside I will put sticker " Hazardous Voltages" with a flash label
  10. spamwize2

    voltage labels

    Hi Im in the panel wiring industry at the moment and was asked if I have to put voltage supply label next to isolator on the front of the control panel or will a flash label with danger hazardous voltage do? I cant find anything in the regs. Thanks in advance
  12. spamwize2

    Coloured, double insulated singles...

    haha sounds interesting, were they just singles twisted together? did the house owner have a blue hat on saying "railways"?
  13. spamwize2

    Zdb ok but no R1 + R2

    ok try that u will be sorted. Zdb will be within tolerance easy
  15. spamwize2

    Zdb ok but no R1 + R2

    As we all know Zdb is a reading where all earth connected: to get Ze we do what?
  16. spamwize2

    Zdb ok but no R1 + R2

    so have you got Ze?
  18. spamwize2

    Thanks for you work, everything is lit up and beautiful

    Thanks for you work, everything is lit up and beautiful
  19. spamwize2

    high zs readings

    I agree with poor earth connection
  20. spamwize2

    Zdb ok but no R1 + R2

    Hi you must be taking readings from somewhere other than phase and earth? How are you checking each flat?.. 1. have you got Zs and Ze to compare?
  22. spamwize2

    17th amendments green book

    don't worry ugly people get it for free
  24. spamwize2

    Ze on Tn-s

    i would dno it
  25. spamwize2

    Hello to everybody!

    hello, maybe you can help me with plc programming?
  26. spamwize2

    supply board cable

    lets take it back to 1967
  27. spamwize2

    another new spark to the forum.

    Hi mate

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