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  1. Pat H

    How can people quote so low?

    See this posted elsewhere and even described as a Bribe. However far more of those who voted labour wouldn't have gained from tuition fees they would have been paying for them in their taxes. A significant number of voters for Labour where over 50's with degrees themselves. So maybe it was that...
  2. Pat H

    How not to run cables through insulation

    Its America. Only 110V so the fire is only half as serious.
  3. Pat H

    Pete's Videos A clipping masterclass

    Be a damn site less hard to bang in if you use the whole hammer handle length. My dad used to shout at me "they made the handle that long for a reason son"
  4. Pat H

    Earthing problem (probably)

    You may want that looked at. That wire shouldn't have affected the earthing of the fridge. Only the backbox. The implication is that the fridge earth is now via that wire to the back box and then from there to the ring main earth.
  5. Pat H

    Network Cabling Installs

    More and more wireless nowadays. Cabling to Access points at most.
  6. Pat H

    Earthing problem (probably)

    Most of those sound pretty normal to me. Many modern devices are double insulated so have no earth connection. So a small voltage can develop between the casing and you as you walk across the carpet. Speakers or an amp with no input turned up loud will hum. Shorting the input connections may...
  7. Pat H

    Interview - technical questions

    Well you have answered that its not as simple as that. Volts aren't objects like buttons. Its a potential difference a measure of the potential capacity for electrons to move from one pole of the battery to the other. So the volts aren't strictly in the battery but a measure of its capability...
  8. Pat H

    BS7671:2018 Proposed Changes

    How an Arc Fault Detection Devices (AFDD) can prevent electrical fire? - http://blog.schneider-electric.com/power-management-metering-monitoring-power-quality/2013/07/03/do-you-know-an-arc-fault-detection-device-afdd-can-prevent-from-an-electrical-fire/
  9. Pat H

    The once great BBC......................

    You won't even know then Murdoch. One test doesn't prove anything. only if you repeated it multiple times could anything be drawn from the results.
  10. Pat H

    Plastic face plates fitted to metalled back boxes

    As long as the metal back box is earthed then that should be fine. The face plate doesn't need to be. The only issue I can see is suitability against environmental factors as you list. Is there additional protection for the circuits like RCD? If not the risk of danger due to damage is higher.
  11. Pat H

    L&N-E IR Test (and we still haven't fixed the stupid 20 characters)

    The shaver point on the wall was just passive. The feed to it is the SELV from the TX. The advantage is the shaver point is small with nothing in it and no in separated mains is fed near it. They aren't very common.
  12. Pat H

    L&N-E IR Test (and we still haven't fixed the stupid 20 characters)

    I wasn't able to examine the shaver TX it had been installed under a floor that had then been laminated. There was no FCU it had been tapped into the RFC. Apparently the Unit has its own internal fuse but of course if that did blow you need to rip the floor up to replace. Anyway upshot was low...
  13. Pat H

    The once great BBC......................

    How can the BBC or any TV station be impartial? How can you ensure an audience is balanced? Ask all that apply how they vote? what their views are? what if they lie? How much time and money do you spend on investigating each person in an audience of hundreds? No you do your best and hope it...
  14. Pat H

    L&N-E IR Test (and we still haven't fixed the stupid 20 characters)

    I had a socket outlet RCD in a RFC give me low readings. Likewise a shaver point.
  15. Pat H

    Yet another terror attack

    So our Maybot has said this has to stop. But just how will that be achieved? Reducing the police numbers? freezing their pay? Not really solutions. I know its not likely but we could do with individual people stepping up. There are a few who have a go at stopping these people but for the most...
  16. Pat H

    Renovated house low r2 readings !

    I'd disconnect the 13A sockets each side of the CU and then measure R2 end to end from each socket. One test round the ring. The other test to and from the CU. With the CU CPCs for the RFC still disconnected at the CU. That should give a sensible remainder of ring R2 and isolate the issue in the...
  17. Pat H

    Interesting read...loop testing and LED Dimmers

    When I did my 2394/95 training that was always one of the first things before testing identify vulnerable components. Dimmers, shaver points, USB supply 13A outlets. neon lights (cookers showers heaters etc) Dimmers replaced with normal manual switches for testing. However I did get caught out...
  18. Pat H

    Water feature supply

    Did you test the RCD using the manual test button or actually measure its trip timings?
  19. Pat H

    Full rcbo boards????

    Does anyone have any links to their fav ferrule crimping tool?
  20. Pat H

    Question about explosion

    So the 13A outlets with USB ports in them????????

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