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Circuit Breaker Bus Bar

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sshook(at)cox.net
Guest

Posted: Tue Aug 07, 2007 1:29 pm Post subject: Circuit Breaker Bus Bar

Greetings,  

I have lurked in the AeroElectric list for a while and I am coming to point in my project where I am going to be planning and building my electrical system.  I am looking at 12 circuit breakers (spare the groans) in a 3 x 4 configuration.  

Would anyone be willing to send a photo or many photos of how would one go about making a copper bus bar for a configuration like that where the breakers are not inline?  

Also, what are you doing to insulate the bus bar against accidental contact with a ground?  

Thank you, 

  

                                  

Scott R. Shook  

RV-7A (Building)  

N696JS (Reserved)  

     [quote][b]

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aurbo(at)ak.net
Guest

Posted: Tue Aug 07, 2007 3:12 pm Post subject: Circuit Breaker Bus Bar

Scott, 

The answers you look for are the same reasons folks don't use that system. 

But: Use 3 cappoer bars and tie them together on the ends with another copper strip. You can put "liquid Electrical Tape" on the ends to try and keep it all safe. Most bus bars have no protection, at least the ones I have seen. I am sure your idea will work and you will fly successfully for years. 

Build on, Mike



---

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aadamson(at)highrf.com
Guest

Posted: Tue Aug 07, 2007 3:55 pm Post subject: Circuit Breaker Bus Bar

I don't know if this will work for anyone  but...

  

 Lancair Avionics will sell "pre-drilled" copper buss bars  that are setup on a specific spacing for Klixon breakers. I actually have some  and won't be using them. They come in two lengths with two different  centers.

  

 I just pulled mine and the long bars (about 8-9 inches) are  on approx .75" centers... The short bars are about 7" long and on drilled on  1.1" centers (these are approx centers and I just grabbed my dial calipers and  eyeballed them.  The wider centers are used to connect the horizontal rows,  vertically and to the main wires coming to the busses.  The narrower  centers are used to connect the breakers together in any specific  row.

  

 Here are some pictures that I shot  quick

  

 http://www.highrf.com/albums/Legacy-Panel/DSCN1977.sized.jpg -  the buss bars

  

 http://www.highrf.com/albums/Legacy-Panel/DSCN1978.sized.jpg - another of the bars

  

 http://www.highrf.com/albums/Legacy-Panel/DSCN1979.sized.jpg - the spacing that they  fit

  

 Hope this helps.  I don't remember those strips  being that expensive, but it's been awhile since I got  these.

  

 Alan

 



   From:  owner-aeroelectric-list-server(at)matronics.com  [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of  Michael Ice

Sent: Tuesday, August 07, 2007 7:11 PM

To:  aeroelectric-list(at)matronics.com

Subject: Re: AeroElectric-List:  Circuit Breaker Bus Bar

 

 

Scott, 

The answers you look for are the same reasons folks don't use that  system. 

But: Use 3 cappoer bars and tie them together on the ends with another copper  strip. You can put "liquid Electrical Tape" on the ends to try and keep it all  safe. Most bus bars have no protection, at least the ones I have seen. I am sure  your idea will work and you will fly successfully for years. 

Build on, Mike



---

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nuckollsr(at)cox.net
Guest

Posted: Tue Aug 07, 2007 6:42 pm Post subject: Circuit Breaker Bus Bar

At 02:27 PM 8/7/2007 -0700, you wrote:



 	  Quote: 	
		  Greetings,



I have lurked in the AeroElectric list for a while and I am coming to 

point in my project where I am going to be planning and building my 

electrical system.  I am looking at 12 circuit breakers (spare the groans) 

in a 3 x 4 configuration.



Would anyone be willing to send a photo or many photos of how would one go 

about making a copper bus bar for a configuration like that where the 

breakers are not inline?


	


See:

http://www.aeroelectric.com/Pictures/Breakers/Breaker_Panel_Busing_0.jpg

http://www.aeroelectric.com/Pictures/Breakers/Breaker_Panel_Busing_1.jpg

http://www.aeroelectric.com/Pictures/Breakers/Breaker_Panel_Busing_2.jpg



 	  Quote: 	
		  Also, what are you doing to insulate the bus bar against accidental 

contact with a ground?


	


Not necessary. There should be nothing in vicinity capable

of producing the ground. All bus bars on light aircraft

are essentially waving in the breeze behind the breaker

panel.



Bob . . .

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walter.fellows(at)gmail.c
Guest

Posted: Wed Aug 08, 2007 6:07 am Post subject: Circuit Breaker Bus Bar

There are some diagrams on spacing you may find useful in the Tony Bingelis book Sportplane Construction Techniques available from EAA.



On 8/7/07, Scott R. Shook  <sshook(at)cox.net (sshook(at)cox.net)> wrote:[quote]          

Greetings,  

I have lurked in the AeroElectric list for a while and I am coming to point in my project where I am going to be planning  and building my electrical system.  I am looking at 12 circuit breakers (spare the groans) in a 3 x 4 configuration.   

Would anyone be willing to send a photo or many photos  of how would one go about making a copper bus bar for a configuration like that where the breakers are not inline?  

Also, what are you doing to insulate the bus bar against accidental contact with a ground?  

Thank you, 

  

                                  

Scott R. Shook  

RV-7A (Building)  

N696JS (Reserved)  

     [quote][b]  http://www.matronics.com/Navigator?AeroElectric-List http://forums.matronics.com  [quote][b]

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longg(at)pjm.com
Guest

Posted: Wed Aug 08, 2007 12:24 pm Post subject: Circuit Breaker Bus Bar

Scott,

     If you haven't already considered it, a 20 slot fuse block  is easier and cheaper to setup than breakers. Use a breaker for the alternator  and main buss, but as Bob would say, you can only reset those expensive critters  once - after that you already have a problem. Install the fuse block where it's  accessible to easily change the fuses but not ugly and you'll have more panel  space for other goodies. You'll also have hundreds of dollars left over from not  buying breakers.

     If you are dead set on cb's I think the list has  already donated some nice examples. 

 [quote]   

   --

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