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  1. l4urence

    Please help me to help my friend with his ceiling lights

    @David Robinson you need to appreciate that the 3 blacks, 3 reds and 3 earths are 3 sets of one black, red and earth. Each of the sets has a different purpose. 1, Live in, 2, live going out and 3, switch. To work out which set does which, test equipment is needed. Only then can anyone explain...
  2. l4urence

    Which box to use please

    I would use a metal back box but for a second here let’s indulge discussion as to why plastic couldn’t be used. The early back boxes were metal because the metal conduit joined to it making the only earthing connection - single wire runs of what was [back then] live and neutral. That’s why the...
  3. l4urence

    Ferrule crimping tool

    I need a recommendation for a decent ferrule crimping tool, particularly for shortening RCBO neural and earthing wires for connection into the bars. Thanks.
  4. l4urence

    USB sockets and IR testing help...

    Personally, I remove the sockets and bypass with wago connectors. I don’t like it but I do like the readings! I think these damn things should have an isolator built in (operated from the front with a screwdriver) that disconnects the electronics. Where’s a good BS standard when you need one!
  5. l4urence

    Bored bored bored.....

    @Baddegg All the best mate. Recovery takes time, rest and recuperate. Hope you are up and about soon.
  6. l4urence

    RCBO Replacement under 18th Edition

    Don't lose those RCBO's - excellent choice during the rewire and far better IMHO than a split load and mcbs!
  7. l4urence

    How fast should a capacitor lose it's charge?

    I used to test using an ohmmeter to charge, the voltage charged the capacitor - so 0 ohms becomes infinity as a short circuit becomes an open circuit - the capacitor is charged. Then discharge using voltmeter, voltage decreases to zero. Very basic but worked in the day (moving coil meters).
  8. l4urence

    Minor works - Like for like

    Replacing a mcb for a rcbo in my opinion is the right thing to do (where there is no RCD protection). I would certainly complete a MW cert and testing of that circuit for such an event.
  9. l4urence

    I get it, FAST TRACK courses are more than frowned upon.......BUT;

    I'm with @Vortigern. Just get on with it. This reminds me of a previous life in the RAF where going through training, 3/4 years on site as mechanic further training and then as technician. They introduced Direct entry (DE) where you could just join as a technician and it upset the world, well...
  10. l4urence

    Which fuse should I use?

    @pirate good point - never really bothered with 5 or 10 - sadly my general rule was 'learned' in my previous life in the RAF - but probably because they didn't have any 5's or 10's ;)
  11. l4urence

    Time for new battery tool kit

    I went for DeWalt - the 54v stuff is incredible and the battery fits the 18v gear too, that said - the Milwaukee stuff is very good and if I had to do it again I would want to have a closer look.
  12. l4urence

    Electrician Jobs Can i connect 2 sockets to a fused socket and this inturn to a other fused socket

    I'm looking again at the original question. why would you want to add another fused connection after the first? so: ring socket <---xFCUx---xSKTx---xSKTx if those sockets take more than the first 13A fuse they will stop (fuse blows). so: ring socket <---xFCUx---xSKTx---xSKTx--xFCUx---xSKTx makes...
  13. l4urence

    Ex military - retrained as a Domestic Installer(for now!)

    @Darren Evans Welcome - exRAF myself, make the most of the real world experience, it's all a little different to the Forces. Always do a quality job (at your price) and don't never compete with cowboys (they will always do it cheaper).
  14. l4urence

    Electrician Jobs Can i connect 2 sockets to a fused socket and this inturn to a other fused socket

    Note @Spoon comments. The non-switched 'fused socket' is confusing the question unless it looks like the item pictured.
  15. l4urence

    Which fuse should I use?

    General rule - below 750w then 3A fuse otherwise 13A
  16. l4urence

    This is how it should be

    That's funny! Didn't realise that. I assumed it was a download that verified subscription - not that you had to be online! Like Office 365, I don't have to be online to use it.
  17. l4urence

    What Happens During Meter Calibration

    @Boing89 Hey! Ex RAF here too! If the values of the measurements are being recorded for certification the meter should be in calibration - the values are not valid without it - it's a requirement. I also use a Calibration Card before testing, takes 2 mins and confirms nothing amiss since...
  18. l4urence

    No earth in lighting circuit what next?

    I always do an EICR before a CU change. Highlights any issues and there are few(er) and less dramatic surprises.
  19. l4urence

    Help!!! Can't turn electric off!!!

    Frightening! Heed all advice about switching this off and isolating. I have seen 2 rings connected together by error - so switching one off didn't. This needs careful inspection, testing and rectification.
  20. l4urence

    Office 365 about to run out.

    Open Office or Google Docs - if it must be MS Office then buy as media rather than online subscription. If you buy 2nd hand - make sure the license is valid.

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