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I always interpret FIRST's rules requiring wire many times the size of the wire going into the device to mean that FIRST is trying to make sure that if shorted (in a horrendous crash, that twists metal and rends 1/2" lexan), the wires are capable of drawing full 20 or more amperes through the related Spike or Victor, without getting hot - or even perspiring (much less 'glowing').
Eric R is always saying he just wants to make sure it's safe.
A way to get around it is to mount the fan so close to its supply that the manufacturers lead wire is long enough.
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