EPRI Electromagnetic Pulse Research - Energy.gov
High-Altitude Electromagnetic Pulse (HEMP) Created by the detonation of a nuclear weapon at high-altitude or in space E1: Early-time Pulse – 50 kV/m, 2.5 nsec rise time (at worst location on ground) – Can affect large geographic areas – Potential impacts to electronics, insulation flashover E2: Intermediate-time Pulse – 0.1 kV/m, waveform and effects similar to nearby lightning strike ...
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