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Unread 02-09-2014, 08:19
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Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
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Re: Larger wire for Anderson SB50 connectors

Max et al,
The current ratings on the #6 is determined for wire temperature rise in continuous current. I suggest everyone make the calculation for the resistance of #6 vs. #4 on their own design. You will find that on a typical robot using 4 feet of wire from the battery to the PD input, the difference between #4 and #6 is millivolts at max current. This drop is far less than the drop due to internal resistance of the battery. To help you along, the resistance of #6 is ~0.4 mohm/foot. #4 is ~.3 mohm/ft.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.

Last edited by Al Skierkiewicz : 02-09-2014 at 08:24.