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Ground Resistance

ebee
It used to be fag packet type approximation that when measuring the earth impedance that as a very very much rule of thumb starter for ten sort of thing.

approx 80% of the total figure between two fart away points might be made up of the area around the local rod/plate/tapes etc and the other 20% between that area and all the area between them up to the area surrounding the other earthing point.

What would be a sort of max in ohms between two extremely far points example two countries ? say England and New Zealand or Oz?
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    Well, if we need conductive stuff to connect England to Oz then it will have to be soil won't it? Or perhaps it could be salt water of the seas? It can't be rock or dry sand as they do not conduct very well. As for deep earth core magma, I just don't know. That reminds me of Barbarella and the Mathmos. I liked the Black Queen, very sexy.  "Hello pretty pretty" ...................."My name's not pretty  pretty my name is Barbarella.  MapJ1 mentioned a single wire transmission  system once but that used very high Voltages. Air won't conduct very well, but does carry radio signals. So, my guess is just a guess.

    Single-wire transmission line - Wikipedia


    Z.
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  • 0
    Well, if we need conductive stuff to connect England to Oz then it will have to be soil won't it? Or perhaps it could be salt water of the seas? It can't be rock or dry sand as they do not conduct very well. As for deep earth core magma, I just don't know. That reminds me of Barbarella and the Mathmos. I liked the Black Queen, very sexy.  "Hello pretty pretty" ...................."My name's not pretty  pretty my name is Barbarella.  MapJ1 mentioned a single wire transmission  system once but that used very high Voltages. Air won't conduct very well, but does carry radio signals. So, my guess is just a guess.

    Single-wire transmission line - Wikipedia


    Z.
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