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test for earth

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  • 02-04-2015 8:22pm
    #1
    daludo
    Registered Users Posts: 208 ✭✭


    Hi folks,
    What is the easiest and least disruptive test to do at fb to test that earth electrode is ok in a house??


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    #2
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,595 Mod ✭✭✭✭2011


    You could carry out a continuity test to ensure that the cable from the earth electrode is electrically connected back to the MET.

    Earth electrodes are generally not tested in domestic installations. If you really wanted to you could carry out a Wenner test.
    This is used to determine the resistance of the earth electrode to the general mass of earth.


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    #3
    17larsson
    Registered Users Posts: 467 ✭✭17larsson


    If you can't find the green box but you see the 10 square earth at the board you could disconnect it from the earth terminal and do a loop test from live to the disconnected earth. If your reading is around the 100ohm mark or under it is fine.


    **Make sure you don't connect it to the wrong 10 square earth**


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    #4
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    Its not all that vital for the reading to be low anyway, for a single earth rod.


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