Today's Message Index:
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1. 08:53 AM - Final Elect. System Review (bcone1381)
2. 10:50 AM - Re: Final Elect. System Review (user9253)
Message 1
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| Subject: | Final Elect. System Review |
Please help me finalize my electrical system. It based off Bobs Z101 and taylored
to meet rather meager demands. I am moving from the conceptual phase to
the fuselage as we speak, installing components today.
My Bearhawk Patrol, like a Supercub, is VFR, with merely a Garmin G5, Engine Monitoring
System, Surefly ignition, Comm, and Xpndr, and portable navigation.
I have done my load analysis, drawn all schematics for individual circuits. My
diagram is attached. I transformed Bobs Z101 Engine Bus to my Aux Bus (Essential
Bus). Continuous draw is 1.5A (2.3A intermittent) plus a single USB charger
max of 2.5A. Please criticize me if the simple switch (Aux Bus - Aux Alt)
is a risk that should fixed with a solenoid.
The left side of the Battery Contactor has 12 AWG wire powering the Aux Bus through
a switch (AUX BUS - AUX ALT) that is not protected. Should I add protection
to that circuit? The length of the circuit is about 30 inches. I have a
B & C slow acting 23A midi fuse that might go well there.
Any other feedback? Bob?
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Brooks Cone
Bearhawk Patrol Kit Build
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=508934#508934
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Message 2
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| Subject: | Re: Final Elect. System Review |
In case of smoke in the cockpit or in case of an imminent forced landing, the pilot
should have the ability to shut off all electrical power as close to the
source(s) as possible. Does your design meet that objective? Relays can be used
for remote control.
-
The surefly electronic ignition is powered by the battery bus and by the aux bus.
Are those two sources isolated with diodes? If not, the aux bus will always
be powered by the battery.
-
Long wires do not necessary have to be protected by a fuse or circuit breaker if
physically protected against shorting. Use your best judgement.
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Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=508937#508937
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