I have some ungrounded equipment in my home. They are emitting really strong fields (detectable on the Trifield detector).
I wonder if grounding they will reduce these fields? I would like to know if anyone has actually tested the difference and can report based on data. |
Often there will be a marked difference between grounded and ungrounded equipment.
Most SMPS (Switching Mode Power Supplies) today use what is called a floating ground. This means that neither the + nor the - lead of the DC output will be attached to any grounding point. This will create an electric field between you and any equipment that is floating. For example the electric fields on my laptop go through the roof as soon as I remove my grounding lead on it. Therefore I make sure to always keep it grounded. If I forget to ground it I can't type on it for 10 minutes without cramps in my arms and neck. When it's grounded I can sit in front of it for much longer. The electric fields from the laptop transfer to any USB connected keyboard and mouse also. So if you think that creating distance with USB extension cords will help, it won't do you any good because what is effectively USB "ground", will also be floating along with the SMPS floating output onto all your extension cords. Therefore to create a safe computing environment, you will in most cases want to ground your computer. This same rule likely applies to most SMPS driven equipment that run on a floating output. |
Thank you. After seeing your message I got motivated and decided to make adjustments here to ground my refrigerator.
The results were staggering. I was getting really high readings on my Trifield before grounding, and after grounded it went close to 0. I just realized that all the ungrouded stuff we have here actually end up increasing the fields of any equipment connected in the same power outlets. I get 10x lower reading when I simply unplug the ungrounded stuff. |
rlopes - Could you please share with us how you went about grounding your refrigerator to reduce EMFs? After grounding, did you measure while the fridge was running and still saw "0"?
From: rlopes [via ES] <ml+[hidden email]>
Sent: Saturday, December 1, 2018 11:43 PM To: Fog Top Subject: [ES] Re: Grounding and EMF impact Thank you. After seeing your message I got motivated and decided to make adjustments here to ground my refrigerator.
The results were staggering. I was getting really high readings on my Trifield before grounding, and after grounded it went close to 0. I just realized that all the ungrouded stuff we have here actually end up increasing the fields of any equipment connected in the same power outlets. I get 10x lower reading when I simply unplug the ungrounded stuff. If you reply to this email, your message will be added to the discussion below:
http://es-forum.com/Grounding-and-EMF-impact-tp4033142p4033159.html
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Hi Fog Top.
What happens is that the power outlet where the refrigerator was connected didn't have an earth plug. It was an additional outlet that a contractor installed very poorly. All I had to do is connect it to a properly grounded outlet. If I position the Trifield now 5 cm from the refrigerator (ON) I get a reading close to 0. I don't remember exactly how much, but under 10. |
In reply to this post by rlopes
We have done extensive testing.
Grounding might reduce electric field emissions (depending on
the composition of the source). It will not improve magnetic field
emissions.
Best regards,
From: rlopes [via ES] [mailto:[hidden email]] Sent: Friday, November 30, 2018 2:43 PM To: emil Subject: [ES] Grounding and EMF impact I wonder if grounding they will reduce these fields? I would like to know if anyone has actually tested the difference and can report based on data. If you reply to this email, your message will be
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