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Spot The Error.

In the words of an old T.V. thriller, your mission if you decide to accept it, is to sport the error in this performance.


If you are ready then let's begin......

https://www.youtube.com/watch?v=kuDfDWUrEus


Z.
  • How many circuits are being covered by the AFDD?

    I thought one AFDD for each circuit. Maybe Schneider have developed a different solution.


    Legh

  • Legh Richardson:

    How many circuits are being covered by the AFDD?

    I thought one AFDD for each circuit. Maybe Schneider have developed a different solution.


    Legh




    Hello Legh,

                            that is an interesting point but not the actual error that I noticed. That is like having many final circuits being protected by just one R.C.D., not a good design. But I think that this device is an arc fault detector circuit breaker, and one per circuit is used. Perhaps the one shown covers just the socket circuits.


    Z.

  • Former Community Member
    0 Former Community Member
    You may note of the connection methods used in America for household accessories. OK for stranded conductors, but like 2.5mm T+E Romex has solid conductors.


    American and UK wiring methods are like chalk and cheese.
  • Must have some big "leakage currents" in USA, but given that every thing is bigger and better than elsewhere, who knows?
  • So the errer in the clip is?


    Z.
  • not at all clear how a surge arrestor stops your home being struck by lightning. circa 25  seconds in.

    The rest of it is just a bit noddy.

  • Zoomup:

    So the errer in the clip is?




    Part 4: Protection for safety


    Chapter 41: Protection against electric shock

    415: Additional protection - RCDs and supplementary bonding.


    Chapter 42: Protection against thermal effects

    421: Protection against fire caused by electrical equipment

    421.1.1 Note 1 - doesn't include leakage currents.


    Scaremongering = sales = profits = happy shareholders. ?


    Now look folks, we are just a small island off the western coast of Europe (wherever that is) so let's not get too full of our own importance.


  • mapj1:

    not at all clear how a surge arrestor stops your home being struck by lightning. circa 25  seconds in.

    The rest of it is just a bit noddy. 



     

    That is exactly what I was thinking of Mike. A gold star to you, and you can be milk monitor for the rest of the  week as a prize. 


    Facto prize:

    Also, did you know that on this day (16th May) in 1888 Emile Berliner first demonstrated the flat disc gramophone record which was better in performance that the original cylinders produced by Thomas Edison.


    Z.