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On 10/10/2013 11:14 PM, Pete Lawless wrote:
> Just a question for the all electric pumps installation - you are
> flying happily along when that burning insulation smell starts
> followed by smoke seemingly from behind the panel - what do you
> turn off?
First of all, it should not be possible that this happens. There is a
simple rule, always wire downstream of a CB or fuse with a wire gauge
suitable for carrying at least the max current of the CB or fuse. So,
even if something goes wrong, then still either the CB pops or nothing
happens.
Secondly, invest in a good amps gauge. I know from all equipment how
much current it is normally using; if something goes wrong I can
easily sort out which circuit is going south and pull the assosiated
CB. If there is smoke, there must be quite some current flowing
somewhere, and it should be relatively easy to find the corresponding
circuit.
Third, if you follow the Europa design you have the second fuel pump
wired directly to the alternator. This means that you can indeed turn
off everything and the engine keeps running. Unless the fault is in
the alternator or remaining pump, but then this means that the rest of
the system is still alive so you should be able to operate from the
other fuel pump. Of course this is only possible if there is a way to
isolate the alternator from the electrical system, either manually or
with a CB/fuse.
Last, I have two completely independant electrical systems, each with
its own alternator and battery. I can kill one complete electrical
system and operate the ship from the remaining bus.
> Personally I would just like to kill all the electrics and still
> have my engine running.
That is still possible.
Frans
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