Strikes to Distribution Lines
This is a strike to a 13.2-kV distribution circuit in upstate New
York. The strike hit midspan and caused flashovers at poles on either
side of the strike that caused subsequent equipment damage. The
lightning appears to be striking the line only about 4 pole spans
from the camera. Actually it is much farther away (about 1/2 mile)
and is striking midspan. This event caused a flashover at each adjacent
pole top and resulted in an MOV failure and a transformer failure
(see the telephoto version).
Wide-angle view:
This is the "telephoto" version of the preceding wide-angle
shot. Clearly visible is the "attraction" of the lightning
(its final step) to the line. Also, the flashover on the adjacent
pole tops, which are due to arrester and transformer failures, are
visible.
Telephoto view:
This is a direct strike to a 13-kV distribution
circuit that caused a flashover on all three phases. This flash
was composed of many strokes (the camera was shaking, so you can
see the individual channels). To the lower right part of the picture,
there is another over-exposed area - this is a flashover further
down on the circuit caused by the lightning flash.
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