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Copper or Brass

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JohnInReno

Joined: 08 Sep 2007
Posts: 150

Posted: Tue Dec 25, 2007 5:18 am Post subject: Copper or Brass

The RV plans call for 2 copper bars made from .063 x 1/2 between the 

master relay and the starter relay. Can I substitute 3 layers of brass 

.040 x 1/2 made from a door kick plate?

John Morgensen

RV-9A fuselage

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_________________
John Morgensen
RV-9A - Born on July 3, 2013
RV4 - for sale

nuckolls.bob(at)cox.net
Guest

Posted: Tue Dec 25, 2007 6:00 am Post subject: Copper or Brass

At 05:17 AM 12/25/2007 -0800, you wrote:



 	  Quote: 	
		  



The RV plans call for 2 copper bars made from .063 x 1/2 between the 

master relay and the starter relay. Can I substitute 3 layers of brass 

.040 x 1/2 made from a door kick plate?


	


   A single layer is fine. These conductors are

   short and have VERY good heat rejection

   characteristics (flat - lots of surface area).

   0.040 material is fine. Brass is MUCH easier

   to work with. However, it might be better to

   make them .6 or so wide since you're drilling

   .312 holes for the contactor studs. Better

   edge margins . . .



   Bob  . . .



        ----------------------------------------)

        ( . . .  a long habit of not thinking   )

        ( a thing wrong, gives it a superficial )

        ( appearance of being right . . .       )

        (                                       )

        (                  -Thomas Paine 1776-  )

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

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