Terry Blanton wrote:
DC circuit protection devices can be quite problematic. One advantage
offered by alternating current is that it passes throught zero current
120 times per second. Once DC arcs in air, it burns away equipment
until the air gap is sufficiently large to extinguish the arc.
...occasionally forming ball lightning in the process
According to Wiki: Submariners in WWII gave the most frequent and
consistent accounts of small ball lightning in the confined submarine
atmosphere. There are repeated accounts of inadvertent production of
floating explosive balls when the battery banks were switched in/out,
especially if mis-switched or when the highly inductive electrical
motors were mis-connected or disconnected.
Hey - speaking of hydrogen as fuel, maybe this can be turned into an
advantage... come to think of it, Clint Seward in Boston may already be
doing that (or at least moving to the next step beyond dreaming about
it) ...
http://www.electronpowersystems.com/Technology.htm
