Thos True wrote:
Failing to insulated the exposed wires have been known to lead to some
nasty burns (on crew and vehicle), as well as damaged batteries and
battery boxes. Hope that this helps!
That reminds me. Electrical cables have some nasty surprises that can
cause serious mischief.
Batteries can deliver enormous short-circuit currents. If a cable does
flop around and short to something, the high current makes it into an
electromagnet. It can JUMP and squirm like a snake, and in the process
cause other shorts and mayhem.
With a high short-circuit current, the insulation can melt off a wire in
seconds. Now you have a BARE wire lying across your batteries. Or, if
that wire is bundled into a harness, the heat can melt the insulation
off the other wires, causing more short. Now Murphy really has some fun!
And let's not even think about what happens if someone used cheap non
UL-listed wire with combustible insulation.
Also, once a high voltage DC arc starts, it is hard to stop. It can
continue to arc across an amazing distance -- many inches when there's
enough molten metal and debris feeding into the arc. Also, an arc can
set melt or set just about anything on fire.
So it pays to be extra careful!
--
"Hold my beer and watch this!" -- (script for a Youtube video for the
Darwin award)
--
Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com
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