Power distribution grids have overcurrent protection at many levels.
A high altitude nuclear burst over central US wold take out 70% of the grid. Another over DC and one over central California would take out the rest. 80-90% of the population would die within 4 months.
A reply that offers information instead of a reflexive brain fart! Rare, indeed. Thank you. I still wonder how widespread that protection is and if it would be effective in a Carrington event, something that is supposed to have a 1 in 8 chance of occurring within any decade.