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copper lugs

 
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kenryan



Joined: 20 Oct 2009
Posts: 424

PostPosted: Thu Nov 02, 2017 5:49 pm    Post subject: copper lugs Reply with quote

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
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PostPosted: Thu Nov 02, 2017 6:28 pm    Post subject: copper lugs Reply with quote

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). Smile


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



Joined: 20 Oct 2009
Posts: 424

PostPosted: Fri Nov 03, 2017 10:12 am    Post subject: copper lugs Reply with 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?

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
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PostPosted: Fri Nov 03, 2017 10:46 am    Post subject: copper lugs Reply with quote

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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