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  1. ringer

    leakage test

    If this washing machine has electronics on board then I would be testing for an upper limit of 3.5mA. This machine would therefore pass on this particular test.
  2. ringer

    hello - Urgently need a PAT Testers help Please

    The Code of Practice is just a guide, and a fairly general one at that. It does not, and can not, cover every eventuality. To do PAT properly you need to be competent. If you are competent then you should be able to assess the situation and be able to make an appropriate and informed decision...
  3. ringer

    Head Scratching time lighting fault

    What type of light fitting was it? Most types of light fittings will work 'normally' with reversed polarity.
  4. ringer

    Head Scratching time lighting fault

    When verifying voltage at the light fitting, how did you connect your test leads? Did you put them directly on to L, N, E terminals at the rose/connector or did you use a plug-in connector for your L and N leads? If the latter, it is very easy to get polarity of test leads reversed.
  5. ringer

    test for phase sequence

    There is no correct sequence. You just need to make sure that all DBs and machines fed from the same supply have the SAME sequence. Is particularly important for rotating machinery.
  6. ringer

    2391 question

    You mean assuming the conductor has enough capacity to do both jobs? To be honest - I can't think of a regulation that specifically forbids it. But I would have thought it would be bad practice. And as stated in an earlier post by yourself, circulating currents may generate enough heat to affect...
  7. ringer

    2391 question

    but the question is asking ... " state giving reason wheather the copper cpc incorparated in distribution circuit is suitable as part of the main equpotential bonding to gas and water services installed to the new building from public supply" First off, I would say no, because main bonding...
  8. ringer

    2391 question

    If it is an EXTENSION then it is classed as being the same property, with the same main supply of services including electric, gas and water. Is this a real question, or one you have made up?
  9. ringer

    Electric Vehicle Charging Points!!

    Got a feeling you have to TT the charging point, even if customer has PME to their house (assuming this is a domestic and not commercial customer). I have the relevant COP but not read through it yet.
  10. ringer

    Electric Vehicle Charging Points!!

    Here's one solution POD Point | Charging at home | Pod Point Prices here Webshop | Pod Point
  11. ringer

    RCDs tripping

    Even if the other side pops and the shower keeps running, then the shower side will exhibit a difference in current between L and N on that side, and should therefore trip as well.
  12. ringer

    RCDs tripping

    Surely with a split load board, you would expect there to be a load almost constantly on each side of the board, with each side being monitored by a separate RCD. So if the N for the shower is put in the wrong side, then side A (with the shower MCB) would have less neutral current than Line...
  13. ringer

    RCDs tripping

    If the neutral is on the wrong side, wouldn't that cause an imbalance on both RCDs and therefore they both would trip?
  14. ringer

    RCDs tripping

    It would mean that only the shower would trip, and not half the circuits in the house. To the OP, if you haven't taken the cover off then you can't be sure the shower is on that side. It won't be the first time someone has moved a circuit from one side to the other and not updated the schedule...
  15. ringer

    in the flat i rent at mo

    So how would you describe the system earthing arrangement on this? Assuming you have no way of knowing what is on the other end of this cable. TN-S? Or will there be a supply head nearby before the coin meter? Would those black boxes contain the supplier's fuse? If so, what would you put down...
  16. ringer

    socket outlets

    The OP is getting confused between the socket outlet (which in domestic situation is typically for 13A plugs and therefore is of type < 20A when applying the regs) and the OCPD for the circuit (typically 32A for such a circuit). The regs in this case are referring to the type of socket outlet...
  17. ringer

    Bonding

    A nearby earth fault may instigate a rise in potential within the lightning rod with respect to other conductive systems within the property. The point of bonding is to minimise such differences in potential within the property. Ligtning rods are typically installed externally but will still...
  18. ringer

    Question regarding PFC, Ze, and live polarity tests. Please help.

    With the main switch off, use the live terminal on the incoming side of the main switch and the (disconnected) main incoming earth to do your Ze. If you get a reading then you have also confirmed polarity of supply, because if polarity is wrong your tester will not do the test due to there being...
  19. ringer

    CoP for Electric Vehicle Charging Equipment Installation

    They seem to be advocating RCD protection for the supply circuit and then a further RCD in the charging point. This one should be type A to cover potential DC faults from the vehicle. The CoP book is £44 from the IET. Lots of pictures and diagrams. Worth purchasing if you are interested, even...
  20. ringer

    Samsung Galaxy S2

    Yup Sent from my HTC Sensation using Tapatalk

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