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Conflicted... New Deck Card #24
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<blockquote data-quote="1krr" data-source="post: 2763085" data-attributes="member: 750"><p>I had the same issue when 9/11 happened. We just drove out of town and found that once clear of the chaos in the cities, it wasn't hard to find a gas station. Plus I'm assuming that the power will be out so no ability to pump for long lines anyway. Wouldn't try to hand pump in front of a crowd. And I would siphon from found cars if need be. But you are right. Most stand alone electrical devices will survive an EMP. While nuclear weapons are hugely powerful, just remember that energy is reduced by 1/d^2 (inverse square law) which means that the amount of energy applied to a system is inversely proportional to the square of the distance. So the high altitude required to create an EMP effect also limits the amount of energy a given area will "see". Things with long conductors especially spread over large areas are particularly vulnerable. In the case of powerlines, they will carry that spike in electricity (which will be a low amperage but very high voltage) through out the grid and into people's homes. What kills things is that electronics in the densities of modern devices are made to operate in the 3-5v range. Spikes in power into the hundreds or thousands of volts, even at very low amperage break the "insulation" inside the silicon between the discreet devices (gates, registers, and so on) making them useless. </p><p></p><p>If you knew an EMP was coming, such as in a nuclear attack, and you wanted to preserve your electronics, unplug everything, and shut off your main breaker. Disconnect antennas. Connect an earth ground to your car's frame (bare metal) and let the body act as a faraday cage, etc. If you know what you are doing, shut off your main breaker and bond both sides of the phase on the HOUSE SIDE of the buss in your panel to your ground which will carry the currents setup in your house's wiring to ground. Obviously this is massively dangerous and should never be done even if you know what you are doing but the info is there. If you don't know what a split phase is and why it works, you don't know enough to mess with your panel even in event of war. All of these things will help. No one is going to have time to do all that when faced with a nuclear strike but just as something to keep in mind in your planning. </p><p></p><p>Other options are if you have a storm shelter, especially a metal one like in the garage, put whatever sensitive stuff you want to survive down there and take a moment to bond the door/cover to the walls of the shelter which will also function well as a faraday cage. In short, an EMP isn't going to set us back into the stone ages. It will however take down large portions of the electrical grid and fry sensitive electronics to it. So definable won't be unicorns and rainbows if one ever goes off.</p></blockquote><p></p>
[QUOTE="1krr, post: 2763085, member: 750"] I had the same issue when 9/11 happened. We just drove out of town and found that once clear of the chaos in the cities, it wasn't hard to find a gas station. Plus I'm assuming that the power will be out so no ability to pump for long lines anyway. Wouldn't try to hand pump in front of a crowd. And I would siphon from found cars if need be. But you are right. Most stand alone electrical devices will survive an EMP. While nuclear weapons are hugely powerful, just remember that energy is reduced by 1/d^2 (inverse square law) which means that the amount of energy applied to a system is inversely proportional to the square of the distance. So the high altitude required to create an EMP effect also limits the amount of energy a given area will "see". Things with long conductors especially spread over large areas are particularly vulnerable. In the case of powerlines, they will carry that spike in electricity (which will be a low amperage but very high voltage) through out the grid and into people's homes. What kills things is that electronics in the densities of modern devices are made to operate in the 3-5v range. Spikes in power into the hundreds or thousands of volts, even at very low amperage break the "insulation" inside the silicon between the discreet devices (gates, registers, and so on) making them useless. If you knew an EMP was coming, such as in a nuclear attack, and you wanted to preserve your electronics, unplug everything, and shut off your main breaker. Disconnect antennas. Connect an earth ground to your car's frame (bare metal) and let the body act as a faraday cage, etc. If you know what you are doing, shut off your main breaker and bond both sides of the phase on the HOUSE SIDE of the buss in your panel to your ground which will carry the currents setup in your house's wiring to ground. Obviously this is massively dangerous and should never be done even if you know what you are doing but the info is there. If you don't know what a split phase is and why it works, you don't know enough to mess with your panel even in event of war. All of these things will help. No one is going to have time to do all that when faced with a nuclear strike but just as something to keep in mind in your planning. Other options are if you have a storm shelter, especially a metal one like in the garage, put whatever sensitive stuff you want to survive down there and take a moment to bond the door/cover to the walls of the shelter which will also function well as a faraday cage. In short, an EMP isn't going to set us back into the stone ages. It will however take down large portions of the electrical grid and fry sensitive electronics to it. So definable won't be unicorns and rainbows if one ever goes off. [/QUOTE]
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