1. Demolition (approx 0:33 from start)
The sound arrives just over 3s after the first visible activity, as expected at that distance. Collapse is surprisingly fast at just 12s from start to finish. The dust cloud travels North-East towards Appleford.
2. 33kV flashover (approx 2:06 from start)
The cause may have been a flashover elsewhere, maybe caused by debris kicked up by the demolition (a flash can also be seen on the other side of Sutton Courtenay Lane). Watch everyone scatter and the lines swaying afterwards due the magnetic force of the fault current!
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