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Good and bad grounding

posted Mar 10, 2017, 1:51 PM by Amir Borenstein, No Rad   [ updated Apr 27, 2018, 11:28 PM ]
Question - How to create a good grounding system for all my protection? 
Is it OK to use the electric ground?

Answer - I recommend not to use the electric ground on the electric socket, but to a special pole outside.
It usually have some micro currents on it. If you connect your grounding to it, the currents might end up on your protection. If you touch it, the currents might find their way onto your skin and nerves system. 

Lots of people think about grounding as a ON/OFF 1-0 thing, you either ground or not. While from my experience it is really a very complicated issue. The Electric ground usually have some small currents and low voltage on it (noise) and in some cases even the a pole in the earth backyard will have some stray currents. This is way I always try to figure out if the ground is good or not. 
A bad grounding will not only cause problems while grounding ELF/RF protection to it, or when connecting grounding mats, it might even pose a real problem just for living in that house. I must say that I haven't created the grounding thin yet, I just have best practice:

I recommend to use a grounding pole and insert it to the real ground on your back yard.
If possible make sure the dirt there is always wet. Then connect your grounding mats and protection to this pole. Make sure you follow the following Best practices.

Best practice for creating a good grounding:
1. Make the grounding cords as short as possible.
2. Have as less as possible connections points between the protection to the pole.
3. Make sure the connections are as strong as possible (lots of contact).
4. The impedance should be as low as possible (lower then 1 Ohm is recommended).
5. Ground all connection to a grounding pole on the yard.
6. Don't connect to the house electric ground.

How to test your grounding quality:
1. Test for electric current (only if you know how) or ELF Magnetic field around ground wires and water pipes, if you see a field there, there is some ground current, and the grounding is bad.
2. In case that an ELF electric field meter shows higher levels when you extend your arm to grab it (when you are grounded or not), there is either a grounding issue in the electric system, or some source of field around you.
3. If you touch the taps or water pipes, or the grounding, and feel some electric shock, usually when walking barefoot, in most cases there is some grounding issue.
4. Test the grounding for noises using a scope. Make sure it is clean. test between the ground and the neutral, between 2 poles in the ground 2 meters apart, between the ground and the water pipes. 

grounding pole