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  1. tony mc

    Please can anyone help a DIY guy? ...CH problem....

    Thats the same as mine Tel but blown up and laminated so I can see the dam thing !
  2. tony mc

    Please can anyone help a DIY guy? ...CH problem....

    You need to get someone in to sort the issue out as it could end up very expensive just changing parts. If the system works on water and heating but not on CH only it sounds like the valve is not driving far enough across to activate the micro switch which should make the orange wire live on...
  3. tony mc

    What's he testing?!

    I knew that I should of worn my plain sky blue T shirt to match the decor!
  4. tony mc

    Drilled through a cable embedded in plaster, easy fix?

    Wonder if the cable is in a Safe zone me thinks not.
  5. tony mc

    Supplying outbuilding, bonding and earthing

    GN8 mentions this but it refers to PME Just a quick excerpt from Guidance Note 8 on this: For installations forming part of a TN-C-S system in which the supply is earthed at multiple points (PME conditions applying), and it is intended to utilise the armouring of a cable or a core of an...
  6. tony mc

    No thanks

    At nearly half a Meg Im surprised it tripped my money is on something plugged in as well or with a up front RCD build up normal leakage (I know the word starts with a C but can I think of it no) 230/0.03
  7. tony mc

    This cannot be right! 0.8amp in N and 0amp in L

    Im at a loss as to why you are only clamping the cables to see what current is being draw! Now you have a neutral to earth fault found that will need sorting prior the the RCD being installed! A global IR test at the CU would of given you a good indication to where the leakage was or even...
  8. tony mc

    micc on rcbo

    So the RCBO was doing the job it was designed for I wondow how long the MCB would of held before it went bang! Surprised that the IR test didnt reveal leakage I am surpised re the readings (IR)that were posted! Thanks for the translation Hightower !!!
  9. tony mc

    Alpha combi tripping rcbo

    Have you tested the RCBO ? You could clamp the Line /Neutral to see what the boiler is leaking that might give a clue. Swap the RCBO for another just incase its a internal intermitant fault with the internals!
  10. tony mc

    Consumer Unit Change

    He said the cables were solid as he was asking for extending advice and imperial are stranded and better cables IMO! Could be older 2.5 T/E with 1mm CPC!
  11. tony mc

    Consumer Unit Change

    I know faults can be a real pain to find especially when you have been looking for some time! You say the fault is the last leg or first leg to a S/O from the CU and a CPC fault. I would be inclined to join L/N at one end and take a reading just to see if the maths matches up with the distance...
  12. tony mc

    Do you need an earth rod for an outbuilding?

    Exporting Pme - http://www.electriciansforums.co.uk/threads/exporting-pme.113254/
  13. tony mc

    Shower tripping sockets rcbo

    http://www.electriciansforums.co.uk/posts/1217461/ http://www.electriciansforums.co.uk/posts/1217441/
  14. tony mc

    Shower tripping sockets rcbo

    There has been a few posts recently about RCBO RCD tripping when circuits not connected to that RCD have been energised! Richard Burns has put up a diagram explaining how this could happen I will see if I can find it. Have you tested both circuits fully and checked for any loose conections...
  15. tony mc

    Heating and hot water only work independently...

    Are you sure its a Y plan and not W plan DHW priority: W-Plan A variation on Y-Plan uses a 3-port Diverter (rather than Mid-Position) valve which switches all flow to either DHW or CH, never to both simultaneously. This is suitable for use with fast recovery DHW systems and is known as W-plan...
  16. tony mc

    Which Reg in the Yellow book

    Thanks for all you replys. Thanks for taking the time to repond just jogged the grey matter which needed a good kick! Regards Tony
  17. tony mc

    Which Reg in the Yellow book

    Thanks Spoon I looked at Appendix 15 but this is a cct direct from the CU on a 16A mcb I will have a look at table 52.3
  18. tony mc

    Which Reg in the Yellow book

    Cant find a Thanks Icon
  19. tony mc

    Which Reg in the Yellow book

    Thanks Spin I will have a look at that
  20. tony mc

    Which Reg in the Yellow book

    Reg 433.1.204 Is in relation to Accessories to BS 1363 supplied through a Ring Final circuit etc and Appendix 15 gives Ring and Radial circuit arrangements. The minimum CSA is 2.5 mm (1.5 MI ) unless a FCU is used and it can be reduced! Just been asked to find the Reg which states 1.5mm CSA...

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