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1. 08:21 AM - Re: Z-13/8 inquiry (user9253)
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| Subject: | Re: Z-13/8 inquiry |
Most aircraft are wired without protection on the main bus feeder.
The theory is that if the feeder shorts to sheet metal, then the sheet
metal will burn away before the feeder burns in two. The most likely
place for the feeder to short out is where it passes through the firewall.
If properly installed, then that will not happen.
As for a battery bus, adding a fuse is likely to cause a problem,
not eliminate one.
There are 3 possible locations for an ammeter: alternator output,
battery current, or aircraft load. Each location has its advantages
and disadvantages. There has been much debate about which
location is best. It is a matter of personal preference. No matter
which location is chosen, the important thing is for the pilot to
understand what the ammeter is displaying. For example, suppose
the builder installs the ammeter to measure aircraft load. The aircraft
is then sold. While on a cross country trip, the new owner notices that
the voltage is low. He is not concerned because the ammeter is showing
normal current. He does not realize that the alternator has failed and
the battery is running down. Actually an ammeter is not a necessity.
A voltmeter will tell the condition of the electrical system. If the voltage
drops much below 14, something is wrong. Do the troubleshooting on
the ground.
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Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=478231#478231
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