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Unread 22-01-2010, 08:11
Unsung FIRST Hero
Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
Team Role: Engineer
 
Join Date: Jun 2001
Rookie Year: 1996
Location: Wheeling, IL
Posts: 10,770
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Re: 5 amp circuit breakers

I have been asking the GDC to add 5 amp circuit breakers to the rules for a few years now. That may have leaked into the Control Systems doc. For now

<R46> All active Power Distribution Board branch circuits shall be protected from overload with an appropriate value auto resetting Snap Action circuit breaker (from the KOP or identical equivalent).
A. Each speed controller branch circuit must be protected by one and only one 20-amp, 30-amp, or 40-amp circuit breaker on the Power Distribution Board. No other electrical load can be connected to the breaker supplying this circuit.
And...
<R47> All active Power Distribution Board branch circuits shall be wired with appropriately sized wire:
A. 12 AWG (2.052mm) or larger diameter wire must be used for all circuits protected by a 40A circuit breaker.
B. 14 AWG (1.628mm) or larger diameter wire must be used for all circuits protected by a 30A circuit breaker.
C. 18 AWG (1.024mm) or larger diameter wire must be used for all circuits protected by a 20A circuit breaker.
D. 20 AWG (0.8128mm) or larger diameter wire must be used for the power connection between the Power Distribution Board and the cRIO-FRC .
E. 20 AWG (0.8128mm) or larger diameter wire must be used for the power connection between the Power Distribution Board and the Linksys Wireless Bridge
F. 20 AWG (0.8128mm) or larger diameter wire must be used for the power connections between the Power Distribution Board and the Analog Breakouts and/or Solenoid Breakout if individual power feeds are used. 18 AWG or larger diameter wire must be used if a common power feed is used for multiple breakouts.
G. 24 AWG (0.5106mm) or larger diameter wire must be used for providing power to pneumatic valves.
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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.