Faraday Cage: Thickness of the conductor

AI Thread Summary
The thickness of a conductor in a Faraday cage affects its ability to block external electric fields, with a few skin depths being necessary for effective shielding at specific frequencies. A continuous conductor can block static electric fields regardless of thickness, while the construction must consider the current flow and the presence of AC electric fields. Holes in the cage must be small relative to the wavelength of the electromagnetic waves to maintain effectiveness. If the electric field changes, it creates a magnetic field, complicating the shielding process. Detailed descriptions of the environment and specific conditions are essential for accurate guidance on Faraday cage design.
obider77
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So i have learned about the ability of Faraday Cage for blocking an external electric field. But is the thickness of the conductor effect the ability? Is there any limit of its thickness so that the cage won't be able to block external electric field anymore? I have read and searched about this topic but i haven't found anything for this, mostly i found about Faraday Cage ability to block electromagnetic wave. Can anyone please help? Thank you
 
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obider77 said:
So i have learned about the ability of Faraday Cage for blocking an external electric field. But is the thickness of the conductor effect the ability? Is there any limit of its thickness so that the cage won't be able to block external electric field anymore? I have read and searched about this topic but i haven't found anything for this, mostly i found about Faraday Cage ability to block electromagnetic wave. Can anyone please help? Thank you
A shielding enclosure needs to be a few skin depths in thickness at the required frequency and any holes in the cage need to be small compared with the wavelength. Even a narrow slit like a knife cut will allow waves to enter unhindered.
 
tech99 said:
A shielding enclosure needs to be a few skin depths in thickness at the required frequency and any holes in the cage need to be small compared with the wavelength. Even a narrow slit like a knife cut will allow waves to enter unhindered.
I guess you are talking about blocking an electromagnetic wave, not electric field itself
 
A static electric field will be blocked by a continuous conductor of practically any thickness.
But how that screen is constructed will depend to some extent on how much current will continue to flow through the screen.
If there is any AC electric field component, then things get more difficult. That is because every electric field that changes will also have a changing magnetic field.
You need to better describe the situation and environment if you want a better answer.
 
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