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robert.rasmussen(at)navy.
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Posted: Mon Jan 30, 2012 1:19 pm Post subject: 2 Questions

Hi y'all.  



First post, so be gentle.

I'm wiring an RV8 (mostly vfr/xc) using Figure Z-11.

I'll have a single aft mounted battery.



2 Questions:

-does the Battery Bus have to be at/near the battery?  I note the * = 6 inches or less in length notation, but I'd prefer to have it in the panel if possible.  This would require an in-line fuse or fusible link on that wire at the battery.

 

-what are the benefits of Schottky diode vs Bridge Rectifier (Radio Shack 276-1185; like on 'Connection page 1-9) between Main Bus and Battery Bus?



-is a completed AEC9005 low voltage warning module available for sale?  All I see on the AE product page is a Bare Etched Circuit Board.



Ok, that's 3 questions - I'll pay back later 

Thanks.

raz

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nuckolls.bob(at)aeroelect
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Posted: Mon Jan 30, 2012 7:07 pm Post subject: 2 Questions

At 03:10 PM 1/30/2012, you wrote:

Hi y'all.



First post, so be gentle.



   We're all friends here . . .



2 Questions:

-does the Battery Bus have to be at/near the battery?  I note the * = 

6 inches or less in length notation, but I'd prefer to have it in the 

panel if possible.  This would require an in-line fuse or fusible 

link on that wire at the battery.



   If it's not at the battery, it's not a battery bus.

   Fuses in the battery bus block are best limited to

   10A or less, breakers at 5A or less. Always hot

   wires (wires over which the crew has no control) are

   protected with very limited ability to create high

   energy fault currents. The legacy rules in TC aircraft

   talk about about limiting heavy feeders to 6" and

   longer wires are protected at 5A or less (in breakers).



-what are the benefits of Schottky diode vs Bridge Rectifier (Radio 

Shack 276-1185; like on 'Connection page 1-9) between Main Bus and Battery Bus?



   Slightly less voltage drop. But the differences

   are so small you'll never notice them from the

   pilot's seat.



-is a completed AEC9005 low voltage warning module available for 

sale?  All I see on the AE product page is a Bare Etched Circuit Board.



   Just the bare board. It's not hard to put together.

   Maybe this would be a good way to "dip your soldering

   iron in the waters of hand crafted electronics."

Ok, that's 3 questions - I'll pay back later 

Thanks.



raz





   Bob . . .

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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