Recent content by pc1966

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  1. P

    The big difference in the electric terminology and installation regulations and practice in each country!

    I think it is for cheapness, so they can sell the same model to both old and young customers, and in the USA, etc, where metric is still a bit of a novelty.
  2. P

    External Consumer Unit

    As above, Ze is at the supply point of the whole installation, and Zs (or Zdb if you prefer) at other locations. There is nothing special about the 0.35 / 0.8 ohm values, they are typically met from domestic TN-C-S or TN-S supplies but not guaranteed. However, in the TN-C-S case they relate...
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    External Consumer Unit

    I also found you need a couple of small drain holes on the bottom to avoid damp building up. I was surprised as in my case the boxes also partially vented inside, but maybe the temperature difference outside was causing condensation. If you cannot be 100% sure water will not get in by any route...
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    External Consumer Unit

    The Blakley stuff will last!
  5. P

    Fitting bolt in fitting

    Hopefully Satan has this planned for their eternal task...
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    External Consumer Unit

    I would agree - always put your units in some sort of outer protection to keep the worst of the weather and UV light off it. Otherwise it will look a bit tatty in 2-3 years time and any imperfection in the sealing leads to big trouble. If you have some form of outer housing, such as GPR or even...
  7. P

    Eicr standards

    For the OP in case they have not come across them so far, the free BPG can be found here: https://www.electricalsafetyfirst.org.uk/professional-resources/best-practice-guides/
  8. P

    Eicr standards

    The Best Practice Guide #4 is a useful document to read in terms of how you might code in an EICR, but it is just that - guidance. There will always be unusual circumstances when a different code is merited than the simple guidance suggests and that is where a degree of experience and good...
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    How do you dress for an interview?

    You can have a Sunday best account for just this sort of thing.
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    La Rocca coffee machine help

    A friend of mine got a 2nd hand coffee machine (OK, probably 3rd or 4th...) for use in a charity cafe and it has problems. First problem is no manual or any other useful information! The power cable is 4 core brown, black, blue, green & yellow so it looks as if intended for two of a 3-phase...
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    coffee-1.jpg

    • pc1966
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    • Category: Electrical Videos
  12. coffee-2.jpg

    coffee-2.jpg

    • pc1966
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    • Category: Electrical Videos
  13. P

    ELCB or RCD for instant tankless shower water heaters?

    I would say an external RCD is better as it protects the cable as well, so insulation damage to the cable leading to a shock risk, or maybe fire risk, have a chance also of tripping the RCD. For UK regulations these days all circuits to a shower/bathroom need to be RCD protected for that sort...
  14. P

    UK Looking for advice

    Welcome to the forum! That is a pretty vague request, it would help if you could be a bit more specific about aspects you want help on!
  15. P

    Does a SPD need a dedicated MCB?

    If it is just the charger needing SPD, and that is coming off a 32A or more MCB, then adding SPD there for the charger will be fine, though depending on cable lengths it won't provide much in the way of protection for other stuff off that TPN board.
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