Recent content by DNO

  1. D

    Please don’t shoot me. Static caravan and a metal shed.

    No.
  2. D

    Bond or no bond ? that is the question .

    PME bonding is reqd as it has always been, (since the 1960s) that is, a bond of suitable size at the point of entry or near as practicable and after a gas meter, water/oil tap and any insulated insert. But we know that dont we?
  3. D

    Earth bond to external oil boiler....

    The PME requirements are that the tank/pipework (external) is staked down. Internally, as always a bond is fixed on the consumer side of the tap and any insulated insert. This has nothing to do with wiring regulations which are non mandatory.
  4. D

    Consumer Unit - Isolator and earthing

    I don't want to be unkind, but the DNO won't "sort your earthing out" They will confirm if PME, which it looks like, but it is your decision which you use, if PME you will need to prove bonding. Or alternatively RCCDs+wiring regulations bonding which is different.
  5. D

    Bonding - CU or Main Incoming Fuse

    All these "guide book" resistance values such as the bonding resistance "limit" 0.05 and that other common one for establishing whether equipotential bonding is reqd -23ka are opinions of private individuals and should be disregarded.
  6. D

    Emergency! Help needed - 3-phase meter install

    It is a 3 phase Ryefield. The Meter fitter has installed a single EDMI AMR and an isolator. The contractor has fitted a double pole RDL block and bunched the 3 phases. Then the contractor has connected the singles into the isolator. This customer will have problems because there is no separate 3...
  7. D

    Cut-out and Meter for flat in downstairs shop

    Probably originally all under same ownership. life moved on, flat and shop split, meter for flat fitted adjacent to shop meter. Now whole supply is overloaded and sooner or later main fuse will blow. Separate service reqd for flat, and yes , it will cost money.
  8. D

    Temporary building supply

    S type rcd in plastic enclosure, then the board with 30ma rcds.
  9. D

    Short circuits from tails to meatal cased CU's

    Really? How many of you have seen a "fire" in a fuse board? Mind how you g o
  10. D

    Short circuits from tails to meatal cased CU's

    Properly installed? you mean with an all insulated up front RCCD. You know it makes sense!
  11. D

    Watch out I'm fitting a plastic DB in domestic.....

    This is an excellent post, well thought out and logical. Fires? perhaps overheating of terminations yes, and if it happens our poster is correct in stating that the shock risk from bare tails needs protection by a plastic RCCD up front. In any event all the outfits giving their "recommendations"...
  12. D

    Bonding of Extraneous pergola frame

    You wont need to get your fork out for digging, this is a simple SNE/TNS earth return system, 6mmsq is adequate bonding.
  13. D

    Main earth

    As usual, its all a big mystery.You should always start at the mains-not at the end. the strange thing here is- putting aside the conduit/swa/pyro rising mains which should be there, where is the earth? the forum waits---
  14. D

    Changing Electric Meter !

    Excellent comments on this post, obviously lots of very sensible advice. Indeed the DNO/Supplier/Meter operator would take a very serious view on this situation. Firstly these meters are uncertified, therefore cannot be used for billing. Secondly, any meters without seals are considered a risk...
  15. D

    Changing Electric Meter !

    very sad

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