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<font size=3>Kurt<br><br>
Fascinating story and valuable information. This is the kind of
real world experience we need to draw on. Reality can change
quickly under extreme conditions and one's education is not complete
without this understanding.<br><br>
Thanks for this post.<br><br>
William Miller<br><br>
PS: You are fortunate your client had a proper fire suppression
system. I doubt many of us can count on that to minimize
damage.<br><br>
Wm<br><br>
<br><br>
At 03:13 PM 5/16/2010, you wrote:<br>
<blockquote type=cite class=cite cite>Voltage is not the issue here, it
is current, and battery fault currents can be staggering - far more than
one would ever encounter in a typical AC system fed from a distribution
transformer. I have seen a 200A Class T fail to act on an 48V
inverter fault which resulted in welding the metal tabs of the fuse
holder (which had been greased with copper-laden Penetrox E) to their
sockets. That indicates a fault current well north of 200,000 amps,
quite possibly sseveral times that. A fire ensued, which
triggered the gas protection system and fortunately resulted in almost no
peripheral damage. It did cost about $10k to recharge and recertify
the Inergen system. The inverter manufacturer was quite cagey on
warranty replacement until they saw the photos - at which point a
replacement miraculously arrived by overnight air.<br><br>
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