---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Thu 02/16/23: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:36 AM - Cleaning house (Robert L. Nuckolls, III) 2. 09:05 AM - Re: FAT Wire Pt Implementation Question (Robert L. Nuckolls, III) 3. 09:32 AM - Re: Master Relay Typical Resistance (long Story) (Radioflyer) 4. 10:35 AM - Re: Primary Power Diagram RV-14 (Mudfly) 5. 11:18 AM - Re: Re: Primary Power Diagram RV-14 (Charlie England) 6. 01:07 PM - Re: Cleaning house (Rivets are SOLD) (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 08:36:09 AM PST US From: "Robert L. Nuckolls, III" Subject: AeroElectric-List: Cleaning house Ran across an assortment of rivets I've had around for longer than I can remember . . . one of you guys bought my #3 rivet gun a few years ago so I could not use these rivets even if I wanted. The box weighs in at just over 5 pounds. Best USPS shipping to US addresses is $20. If any of you would like to acquire this assortment of rivets, drop me a direct mail request and I'll PayPal invoice you for the postage. Bob . . . Un impeachable logic: George Carlin asked, "If black boxes survive crashes, why don't they make the whole airplane out of that stuff?" ________________________________ Message 2 _____________________________________ Time: 09:05:21 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: FAT Wire Pt Implementation Question > >Is using this smaller #10 stud for my main power feed FAT wire point >a poor choice? I ask because most #4 wire connects to 0.31" studs in >my experience, though I am a novice at this. Can the smaller #10 >stud handle continuous larger currents at 12V like the 0.31" stud can? EXCEPT for the instance where the stud is also a carry-thru conductor, the size of the stud and/or it's material is of very minor importance in the calculus of power path integrity. Recall that the holy-grail of connection integrity is GAS TIGHTNESS . . . i.e. made the mating of power path components as close as practical to one piece of metal. Recall our studies of crimped terminal physics and the art of soldering terminals to fat wires. No voids in the interface between terminal and wire strands. Similarly, bringing the terminal flags together . . . or into good contact with the appliance stud is a function of PRESSURE (force/area) where the ideal interface actually deforms the surface of the mating components (this is one reason that copper is universally preferred for terminal material). The size of the stud is not particularly important as long as it meets the goals of holding things together. >Should I change to device with a 0.31" stud for my hot wire point, >to prevent either overheating hazards or unnecessary resistance/loss >in the wire path? What do people commonly use for FAT wire points? I >don't see many single junction posts available in aviation catalogs, >lots on Amazon but questionable quality. Short answer: No. Any interconnection technology that depends on threaded devices for CONDUCTION pathway integrity is to be carefully evaluated for suitability to task . . . when in doubt . . . don't. But when your flat surfaces are inseparably forced into gas-tight togetherness, thread size is not part of the electrical equation. Note the thread size on this 200A fuse holder. Bob . . . Un impeachable logic: George Carlin asked, "If black boxes survive crashes, why don't they make the whole airplane out of that stuff?" ________________________________ Message 3 _____________________________________ Time: 09:32:30 AM PST US Subject: AeroElectric-List: Re: Master Relay Typical Resistance (long Story) From: "Radioflyer" Bob N. and others...Thanks for your comments. I did replace the high milliOhm battery contactor with a new Cole-Hersee unit. I also replaced for good measure the battery master switch since the original contactor was not fitted with a suppression diode. Overall, it made no difference to my 15+ overvoltage and occasional alternator dropouts. Further tracing of Voltages indicated that the Voltage Regulator was getting same V as present directly at the battery and yet not "regulating" so I replaced the Voltage regulator. Problem solved (for now)! Read this topic online here: http://forums.matronics.com/viewtopic.php?p=510204#510204 ________________________________ Message 4 _____________________________________ Time: 10:35:21 AM PST US Subject: AeroElectric-List: Re: Primary Power Diagram RV-14 From: "Mudfly" Thanks gentlemen. After further review I will be moving my Hot Bat Bus fuse holder firewall fwd. It finally dawned on me that there could be a issue with the fuse holder itself that could cause smoke/fumes, but not enough to blow 30A current limiter. There would be no way to stop it. I get it now. Also, I will probably remove the move landing and nav lights and put them on the main power bus. I was trying to keep my main power bus CB panel at 25 CBs so I would have a 5x5 setup. Seemed easier and cleaner when installing copper bus strips. I will cross that bridge later. Thanks again! Read this topic online here: http://forums.matronics.com/viewtopic.php?p=510205#510205 ________________________________ Message 5 _____________________________________ Time: 11:18:47 AM PST US Subject: Re: AeroElectric-List: Re: Primary Power Diagram RV-14 From: Charlie England On 2/16/2023 12:34 PM, Mudfly wrote: > > Thanks gentlemen. > After further review I will be moving my Hot Bat Bus fuse holder firewall fwd. It finally dawned on me that there could be a issue with the fuse holder itself that could cause smoke/fumes, but not enough to blow 30A current limiter. There would be no way to stop it. I get it now. Also, I will probably remove the move landing and nav lights and put them on the main power bus. I was trying to keep my main power bus CB panel at 25 CBs so I would have a 5x5 setup. Seemed easier and cleaner when installing copper bus strips. I will cross that bridge later. > Thanks again! I've got you a deal on a bridge, right here. ;-) -- This email has been checked for viruses by Avast antivirus software. www.avast.com ________________________________ Message 6 _____________________________________ Time: 01:07:58 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Cleaning house (Rivets are SOLD) The rivets are SOLD Bob . . . Un impeachable logic: George Carlin asked, "If black boxes survive crashes, why don't they make the whole airplane out of that stuff?" ------------------------------------------------------------------------------------- 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.