One thought on “A 500kv switch fails

  1. F says:

    On 14 inch laboratory van de graff electrostatic generators, a spark of 500,000 volts would be about 8 inches long and barely tickle. This Momma must have had eleventytwo gazillion amps along with the 500kvolt potential. Thus, the spark could always heat air enough to make a suitable conductive path through its own heated air. Nice!

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