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  1. Worcester

    AC Voltage Drop 250m run

    We've got a site where we're installing a 50kWp (3 phase) system on a barn and then feeding the main buildings 250m away. I've just gone through the BRB, and allowing for both the operating temperature and load factor, I got results of 95mm2 Cu and 120mm2 Al - this seems a bit on the large...
  2. S

    Signing off other people work?????

    Hello All I am new to this forum so bear with me. This is my situation, i hope you can help. I have an american friend who is an electrician in the states. He is here on a visa that means he can't earn money while he is here. But he is willing to rewire my house for me for free, except for...
  3. B

    Design Stage

    hi all could someone please explain to me why i need the follwing information at the design stage of an istallation - - Prospective earth fault current (I) - The value of external impedance (Ze) - Assumed current demand of the installation - Disconnection times of certain light fittings...
  4. S

    Anyone IET members?

    Just want to know if any or many on this forum are members of the IET? If so, what's the crack with it? Is it benficial/worth it? Recommended? Being a factory / automation / raggeddyarsed spark; would it benefit or promote? Just a passing interest in the cult... not the She Sells Sanctuary...
  5. S

    3 step test on ring final circuits

    hi guys n gals, just swotting up on some test procedures and im wondering how many of you do a 3 stage test on ring main circuits? i know from previous employers on a new build for instance, they just wanted me to get the end to end results and then go round to every socket and record which...

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