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04:41 PM
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Would any of these Faraday Cages work against an EMP?
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In accordance with industry accepted best practices we ask that users limit their copy / paste of copyrighted material to the relevant portions of the article you wish to discuss and no more than 50% of the source material, provide a link back to the original article and provide your original comments / criticism in your post with the article.
[quote:Life and Love:MV8xMTAxMjYzXzM0NzMxNDA2X0U5NTc0M0FC] [quote:Anonymous Coward 28147705:MV8xMTAxMjYzXzM0NzMxMzU2XzkxNkZBMTZC] ok, first off, your faraday cage has to be grounded. second, pretty much any form of metallic screening (like aluminum window screen) will do. thirdly, you want multiple, isolated from each other, plies, each of which is separately grounded. small very effective cages can be made by nesting metal boxes inside each other, each grounded, with layers of insulative material between them (kind of like one of those "russian dolls") . a room could very effectively be caged with screening and battens of plywood used as stand-offs between layers. if you dont ground the cage, it just becomes a resonator for the frequency it absorbs. the more plies the better (it scatters em lines of force). chicken wire, window screening, or any other fine mesh of metal will do, even expanded metal lath. [/quote] These are all very good comments. I would add to one of them: be sure you are grounding to GROUND and not the electrical system or even plumbing, else, you have just connected a very large antenna to your box. Like I wrote earlier, if you are living in a 5th floor apartment, "ground" is 50 feet away and that 50' antenna, even if a dedicated wire not connected to anything else, will pick up more EM energy than the box itself. [/quote]
Original Message
I'm looking to invest in a Faraday Cage.
Here are some I've seen so far; would any of these protect my electronics in an EMP?
BIG 17x10' Faraday Cage RF Screen Room Lindgren+filters
This one, I've found on eBay; there's LOTS of Faraday Cages and Faraday Cage-rooms on eBay; not sure how well they'd work though:
[
link to cgi.ebay.com
]
Faraday Cage
This is a really small (and cheap) one I found.
[
link to www.arborsci.com
]
If these wouldn't work, what type of Faraday Cage do I need for my electronics to survive an EMP?
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