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Old 11-27-2007, 03:17 PM   #430 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.8 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
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09-13-2007, 03:33 Pm

Turns out there's a discussion about this on the EVDL this week. The issue is DC arcing, and one of the old hands says:

Quote:
A AC breaker at the same voltage of the DC source, does not have the larger
contact pads and spacing as a DC breaker. The spacing is contacts spacing
is wider in a DC breaker, so when a DC breaker is activated, there will be
less arc over.
He recommends going 3x over the AC rating for DC use:

Quote:
A circuit
breaker design for 3 hp load on AC is only good for 1 hp on DC. So it about
a 3 to 1 factor.
http://www.nabble.com/Clearing-the-a...html#a12646307

Mouse: I'll post a description of the lug making process soon, and come back and add pics later. I haven't made any new ends since last weekend. This weekend will probably be spent figuring out how to mount contactors etc.

I did sneak out and replace my fried potentiometer today though.
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