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copper lugs

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kenryan

Joined: 20 Oct 2009
Posts: 429

Posted: Thu Nov 02, 2017 5:49 pm Post subject: copper lugs

Is it acceptable to use non-plated copper lugs on the 4AWG cables in my starting circuit?



Ken Ryan

Anchorage, Alaska

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ceengland7(at)gmail.com
Guest

Posted: Thu Nov 02, 2017 6:28 pm Post subject: copper lugs

On 11/2/2017 8:46 PM, Ken Ryan wrote:

 	  Quote: 	
		   Is it acceptable to use non-plated copper lugs on the 4AWG cables in 

 my starting circuit?



 Ken Ryan

 Anchorage, Alaska

I hope so (I did). 
	




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nuckolls.bob(at)aeroelect
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Posted: Fri Nov 03, 2017 9:51 am Post subject: copper lugs

At 08:46 PM 11/2/2017, you wrote:

  	  Quote: 	
		  Is it acceptable to use non-plated copper lugs on the 4AWG cables in my starting circuit?



 Ken Ryan

 Anchorage, Alaska 	


   Sure. Recall that we strive for 'gas tight'

   connections between the current carrying

   components of a power pathway.



   Gas-tightness minimizes electrical resistance

   in the metallic interfaces, excludes moisture

   and oxygen that will degrade the joint over

   time. Whether or not surfaces outside the joint

   are exposed to the effects of corrosion will

   have only cosmetic effects on the assembly.



 

 

   Bob . . .

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kenryan

Joined: 20 Oct 2009
Posts: 429

Posted: Fri Nov 03, 2017 10:12 am Post subject: copper lugs

Thanks. Is it really a good idea to spray connections with something like CorrosionX? If so, would it matter if the parts are sprayed before or after assembly?



On Fri, Nov 3, 2017 at 9:50 AM, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:

 	  Quote: 	
		    At 08:46 PM 11/2/2017, you wrote:

  	  Quote: 	
		  Is it acceptable to use non-plated copper lugs on the 4AWG cables in my starting circuit?



 Ken Ryan

 Anchorage, Alaska 	


   Sure. Recall that we strive for 'gas tight'

   connections between the current carrying

   components of a power pathway.



   Gas-tightness minimizes electrical resistance

   in the metallic interfaces, excludes moisture

   and oxygen that will degrade the joint over

   time. Whether or not surfaces outside the joint

   are exposed to the effects of corrosion will

   have only cosmetic effects on the assembly.



 

 

   Bob . . .

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nuckolls.bob(at)aeroelect
Guest

Posted: Fri Nov 03, 2017 10:46 am Post subject: copper lugs

At 01:10 PM 11/3/2017, you wrote:

  	  Quote: 	
		  Thanks. Is it really a good idea to spray connections with something like CorrosionX? If so, would it matter if the parts are sprayed before or after assembly? 	


   Any material designed for and effective for

   corrosion control wouldn't hurt. Spraying

   before assembly probably wouldn't make

   much difference. Recall that 'gas tightness'

   goes hand-in-hand with physical deformation

   of the metals that make up the joint. Deformation

   forces for copper alloys will be measured in

   tens of thousands of pounds per square inch.

   The compression strength of just about

   anything you spray on is immeasurably small.

   It simply extrudes out of the contact area

   as the make-up forces are applied.



   



 

   Bob . . .

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