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What are "Ground Boxes"?

Posted 24th January 2016 at 12:48 AM by rjm

Ladies and gentlemen, please try to keep a straight face while browsing the following link.


I'm not sure whether its possible to build a passive, permanent device that dissipates/neutralizes electrical charge. But the scientist part of me finds the claims that you can interesting.

Static electricity will eventually dissipate by attracting counter ions from the air. This happens more quickly if the humidity is high.

So seriously, if you just stuck a wire into a bucket of dirt, how much "earthing" would that actually provide? Is there any way to amplify that effect by using special materials or even passive electrical components?
Total Comments 2


  1. Old Comment
    noSmoking's Avatar
    Well if you put a wire in a bucket of dirt ,I don't think it will conduct into the ground.
    I do know that soil charts provide info on soil resistance and that should be a basis to the size of a hole depth and circumference size in the ground.
    The bigger the hole the better or more conduction,When CB was a big hobby ,It was a know fact to dig 3 holes 12" and 4 feet in red clay/sandy soils about 10 feet apart layed out as a triangle ,a solid copper ground rod 3/4" and 8 feet long was driven into the center of the hole and as you filled in around the rod, salt was poured around the rod and saturated with water.
    This did improve transmitting distance and resulted in less squelch (noise).
    I do know that bonding electrical boxes to ground is a NEC requirement for code and it makes conductor for static and a return path for electrics on neutral conductors.
    You can put in a ground rod OR use a water pipe it must be copper not pvc and take a VOM and see if you can read any resistance between them,if yes then a current could flow,so ground your equipment,
    Sigbee's and several other devices have gone down this road already google it and see what you think,I don't see how boxes with dirt in them can make a return to earth ground ,maybe magic dirt?
    Posted 24th January 2016 at 02:40 AM by noSmoking noSmoking is offline
  2. Old Comment
    rjm's Avatar
    "Earth" is a charge bucket, in essence, something you can safely dump however many Farads into without generating any potential. When you put a copper rod into the ground to act as an earth, I don't think you need a whole planet's worth of mass for this to operate effectively... but I have no idea how much mass you would need.

    This "Ground Box" is meant to act in a similar way but only for small amounts of high frequency, AC electrical noise that might be hard to bleed off to the safety earth due to the inductance of the ground wires.

    The idea is to put something that acts like a small capacity earth connection close the the equipment.

    Now that logic might be totally bogus, and why anyway this should be effective I don't know, but I'm curious as to what a "small capacity earth" could physically be and how it would operate.
    Posted 25th January 2016 at 04:58 AM by rjm rjm is offline
    Updated 25th January 2016 at 05:01 AM by rjm

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