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Aluminum bus bar

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tomvelvick

Joined: 10 Jan 2006
Posts: 18
Location: Peoria, AZ

Posted: Tue Jun 20, 2006 6:31 am Post subject: Aluminum bus bar

Hi Bob,

I am relocating and rewiring the switches/circuit breakers in my wifes plane.  I found that the switch breakers in the panel were all connected to power with a .025 1/2 by 6 inch aluminum bus bar.  I have never seen anyone use a thin piece of aluminum before.  It seems woefully inadequate to me.   Just wondering how bad an installation this was and what would have happened if all of the switches were on together for a long time.  Since we dont do much night flying, most of the switches are normally off.



Regards,

Tom Velvick

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nuckollsr(at)cox.net
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Posted: Tue Jun 20, 2006 7:27 am Post subject: Aluminum bus bar

At 10:26 AM 6/20/2006 -0400, you wrote:



 	  Quote: 	
		  



Hi Bob,

I am relocating and rewiring the switches/circuit breakers in my wifes 

plane.  I found that the switch breakers in the panel were all connected 

to power with a .025 1/2 by 6 inch aluminum bus bar.  I have never seen 

anyone use a thin piece of aluminum before.  It seems woefully inadequate 

to me.   Just wondering how bad an installation this was and what would 

have happened if all of the switches were on together for a long 

time.  Since we dont do much night flying, most of the switches are 

normally off.


	


   It's been done many times. Not recommended but I'm also

   not aware of any cases where use of aluminum versus brass

   or copper was the cause of any problem. Getting a gas-tight

   connection at the fasteners is the key irrespective of what

   materials are used.



   If you have an opportunity to swap out for brass, it wouldn't

   be a bad thing to do . . .



   Bob . . .

      ---------------------------------------------------------

      < What is so wonderful about scientific truth...is that >

      < the authority which determines whether there can be   >

      < debate or not does not reside in some fraternity of   >

      < scientists; nor is it divine. The authority rests     >

      < with experiment.                                      >

      <                            --Lawrence M. Krauss       >

      ---------------------------------------------------------

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