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Old 09-06-2010, 03:55 PM   #305 (permalink)
thingstodo
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DC and Arc Flash

Quote:
Originally Posted by Automcdonough View Post
...
Part of this decision was also rooted in arc-flash safety, I just don't want the battery voltage any higher than this from a liability perspective. (does everyone here know about arc-flash hazards? If not look it up, it's a very big deal!!)
I know that there are standard calculations for arc flash hazard on AC for the various voltages and short circuit currents. We (day job) were using the same calculations for DC with a couple of 'best practice' rules. They don't really fit well since DC does not 'turn off' 120 times per second and extinguish the arc.

I guess I'd better re-READ the info I have
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