Recent content by gcwarr

  1. G

    UK TT Earth Rod Submerged then Freezing

    I’m not too concerned about the reduction in effectiveness of the earthing as it was measured at install a few days ago around 23 Ohms. More any impact on the connection from it freezing and/or long term impact of potential corrosion. I presume it’s normal for them to fill with water and also...
  2. G

    UK TT Earth Rod Submerged then Freezing

    Hi All, This is my first (as house holder, not electrical professional) experience of an earth rod. We have just had a TT ‘island’ install of a hot tub supply. All is fine, but the recent large amount of rain has lead to the installed earth pit flooding with the entire top of the rod and...
  3. G

    Electrician Jobs TT supply for hot tub

    Thanks for the advice so far. I now have a local qualified electrician engaged with this and an installation plan for TT earth at the hot tub and suitable cascaded RCD protection with selectivity at the supply end. Out of interest, how would you usually achieve complete isolation of the two...
  4. G

    Electrician Jobs TT supply for hot tub

    Does it seem reasonable to have two RCD/RCBO inline to prevent single point of failure in a TT ‘island’ setup? Is it OK for both of these devices to be upstream of the TT island (i.e. at consumer unit on supply earth, then switch to TT earth at the hot tub end)? Apologies if my wording is...
  5. G

    Electrician Jobs TT supply for hot tub

    Thanks for the response, makes perfect sense. When I say advice, I mean if anyone is local to us and can advise in person. I understand any advice on the forum will be generic and this situation is dependent on many things about the specific site/setup.
  6. G

    Electrician Jobs TT supply for hot tub

    Appreciate the comments so far. Anyone in the North West able to help, or at least advise on this? Thanks.
  7. G

    Electrician Jobs TT supply for hot tub

    I work in functional safety, so the principle of As Low As Reasonably Practicable is in the forefront of my mind with regard to risk. No there was no discussion with the electrician before the install, it was done as part of a package with landscape gardener. I know nothing is technically...
  8. G

    Electrician Jobs TT supply for hot tub

    Hi, I have recently had a hot tub fitted and am not comfortable with it being supplied directly from TN-C-S supply. I’m looking for someone to modify to TT, but struggling to find anyone locally who can help. Location - Warrington, Cheshire. Thanks.
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