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Electromagnetic pulse (EMP) is a perturbation of an electromagnetic field that affects any material object in its area of ​​effect. The damaging factor of nuclear weapons, as well as any other sources of electromagnetic radiation (for example, lightning, stun guns, special electromagnetic weapons, electric arc welding, short circuits in high-power electrical equipment, or a nearby supernova flash, etc.). The damaging effect of an electromagnetic pulse (EMP) is due to the occurrence of induced voltages and currents in various conductors. The action of EMP is manifested primarily in relation to electrical and electronic equipment. The most vulnerable lines of communication, signaling and control. In this case, breakdown of insulation, damage to transformers, damage to semiconductor devices, etc. can occur. A high-altitude nuclear explosion can create interference in these lines over very large areas. EMR protection is achieved by shielding power lines and equipment. EMP does not affect people.

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