OT: EMP and Equipment

[woodelf]

Allison wrote:

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>>Would having them unplugged help?
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>Yes.
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And also disconected from the phone lines.

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>>Or must they be shielded in some way?
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Don't forget to make your foil hat :)

>>The reason for the terse questions is your asking a broad 
>>question.  Basically EMP is a sudden expansion then contraction
>>of a magnetic field. From basic electronics there are two ways
>>to generate power using magnets (or their fields) one is to move
>>the wire and the other is to move the magnet.
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>>The amount of energy induced into a wire is dependent on how many
>>lines of force you traverse and thats related to how strong the 
>>magnets field is (also how close).
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>>We get EMP from two sources, one common.  The nuke version can 
>>be very strong but if your close enough for EMP then you may be
>>too close to worry.  The other common source is lightinging, every 
>>bolt we see represents a momentary huge current that collapses 
>>very quckly with the attendent magnetic fields. There are two 
>>protection methods applied for lightining.  One being electrostatic
>>and the other recognizes the electromagnetic.  Protection for the
>>latter is simple most of the time.  Disconnect the power cord, 
>>antennas, and any control lines.  In short remove any "wires" that
>>can have an induced field and transfer that voltage inside to the 
>>sensitive parts.  Ideally for complete protection a iron or steel
>>case with no breaks is best protection against near misses.  In 
>>both cases distance fromthe event is a really good thing as 
>>magnetic fields are squarelaw IE: at twice the distance it's 
>>one quarter strength.
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>>So yes you can protect your hardware, assuming your far enough
>>away to survive. You still ahve to worry about high energy 
>>particles (neutrons, beta and gamma particles) and other 
>>radiations ( Xrays and infared).
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Except for your CLASSIC 8's ... you just can't kill them.
Ben alias woodelf