All,
In case anyone else is contemplating fitting the Club Mod to fit a crowbar
device
to protect A/C avionics from high volts alternator failure (run-a-way), fitting
a 5A fast blow fuse in stead of a circuit breaker does not work. I fitted
one because I thought it would do the same job, but I was mistaken. It must
have blown quite early in the first flight owing to a "voltage spike" so the
alternator circuit was isolated and the voltage dropped back to 12v. I reduced
the electrical load and continued the flight, but when I subsequently
investigated
the problem I saw that the 22,000uf capacitor had blown leaving fluid and
soot everywhere. Fortunately, it appears that the capacitor had protected
the alternator and regulator from a more expensive repair, so I was lucky. I
have now fitted a delayed action 5A fuse which seems to be OK until I next
remove
the panel, when I shall fit the 5A circuit breaker, as specified in the mod.
Regards,
William
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