---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Fri 11/18/22: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:53 AM - Final Elect. System Review (bcone1381) 2. 10:50 AM - Re: Final Elect. System Review (user9253) ________________________________ Message 1 _____________________________________ Time: 08:53:18 AM PST US Subject: AeroElectric-List: Final Elect. System Review From: "bcone1381" 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? -------- Brooks Cone Bearhawk Patrol Kit Build Read this topic online here: http://forums.matronics.com/viewtopic.php?p=508934#508934 Attachments: http://forums.matronics.com//files/screen_shot_2022_11_18_at_114320_am_149.png ________________________________ Message 2 _____________________________________ Time: 10:50:27 AM PST US Subject: AeroElectric-List: Re: Final Elect. System Review From: "user9253" 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. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=508937#508937 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.