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Since
this all started with Rusty's fuel pump problem I thought that this little quote
form the big iron manufacturers would be of interest ;-)
From Boeing:
"Resetting circuit breakers is not generally a requirement in flight.
However, a tripped circuit breaker (other than a fuel pump C/B) may be
reset at the Captain's discretion, after a short cooling period
(approximately 2 minutes). If it trips again no further attempt is to be made to
reset that C/B."
From the Airbus Flight Crew
Operating Manual for the A300/310/319/320/321: "In flight, the flight
crew must not reengage a tripped C/B. On the ground if the pilot coordinates the
action with maintenance he may reengage a tripped C/B provided the cause of the
tripped C/B is identified."
Perhaps the best feature a fuse brings to the table is some extra loot to
pay for planned redundancy in critical systems, and the removal of the
temptation to start and electrical fire in flight.
--
Ian
Interesting article, Mark. I think it supports use of
fuses, and redundancy in critical circuits.
The
word "fuse" appears nowhere in the article.
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