A magnetic pulse induces (Faraday effect) a powerful (high-voltage) electrical pulse in exposed wiring, effectively generating its own power. This doesn't have

A magnetic pulse induces (Faraday effect) a powerful (high-voltage) electrical pulse in exposed wiring, effectively generating its own power. This doesn't have to be a wire in a coil, like in a motor, transformer, or generator, but can simply be a standalone wire, like the telegraph lines burning down their own poles during the Carrington Event. Or, a high-voltage power line could induce a massive surge while the coils in its transformers are also generating their own spike on each side of each transformer. A wide-spread event with a powerful magnetic storm would result in utter chaos, and it'd be nearly impossible to repair the damage. In the case of a solar storm, it's likely that a wide swath of the entire planet would receive a portion of the CME as the Earth turns on its axis from day to night.