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nuckolls.bob(at)aeroelect Guest
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Posted: Mon Dec 18, 2017 12:18 pm Post subject: DIY captive stud terminal strips |
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A short time ago we had some discussions that
included the mention of a technique for crafting
captive stud terminal strips.
Just ran across some pictures of an exemplar
technique . . .
https://goo.gl/cMQtA4
The base is crafted from some durable insulating
material. The article illustrated is built on a
piece of Delrin. Alternative materials include
6/6 nylon, phenolic, PVC and some thermoplastics.
Counter-sink the studs about 0.03 under-flush
and back-fill with epoxy . . . JB Weld is good.
Bob . . .
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raymondj(at)frontiernet.n Guest
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Posted: Mon Dec 18, 2017 2:15 pm Post subject: DIY captive stud terminal strips |
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Many JB Weld products are steel reinforced.
Is it possible that the JB Weld used to secure the bolts might be
conduction path if the terminal strip is mounted on a conductive surface?
Raymond Julian
Kettle River, MN
The things we admire in men, kindness and generosity, openness, honesty,
understanding and feeling are the concomitants of failure in our system.
And those traits we detest, sharpness, greed, acquisitiveness, meanness,
egotism and self-interest are the traits of success. And while men
admire the quality of the first they love the produce of the second.
-John Steinbeck, novelist, Nobel laureate (1902-1968)
On 12/18/2017 02:18 PM, Robert L. Nuckolls, III wrote:
Quote: |
<nuckolls.bob(at)aeroelectric.com>
A short time ago we had some discussions that
included the mention of a technique for crafting
captive stud terminal strips.
Just ran across some pictures of an exemplar
technique . . .
https://goo.gl/cMQtA4
The base is crafted from some durable insulating
material. The article illustrated is built on a
piece of Delrin. Alternative materials include
6/6 nylon, phenolic, PVC and some thermoplastics.
Counter-sink the studs about 0.03 under-flush
and back-fill with epoxy . . . JB Weld is good.
Bob . . .
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user9253
Joined: 28 Mar 2008 Posts: 1908 Location: Riley TWP Michigan
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Posted: Mon Dec 18, 2017 4:01 pm Post subject: Re: DIY captive stud terminal strips |
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According to JB Weld website
https://www.jbweld.com/pages/faqs
Will J-B Weld conduct electricity?
No. J-B Weld is not considered to be a conductor. It is an insulator.
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_________________ Joe Gores |
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nuckolls.bob(at)aeroelect Guest
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Posted: Mon Dec 18, 2017 4:47 pm Post subject: DIY captive stud terminal strips |
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At 04:14 PM 12/18/2017, you wrote:
Quote: | --> AeroElectric-List message posted by: rayj <raymondj(at)frontiernet.net>
Many JB Weld products are steel reinforced.
Is it possible that the JB Weld used to secure the bolts might be conduction path if the terminal strip is mounted on a conductive surface?
Raymond Julian
Kettle River, MN |
Not sure how much the epoxy's strength
can be attributed to particulate steel . . .
but the data sheet . . .
https://goo.gl/mHXUZX
suggests that any electrical contact between
such particles is nil to zero
volume resistivity of JB weld is 3.16 x 10^15
while that of copper is about 1.7 x 10^-8
if I recall correctly. This means that JB
Weld is pretty good electrical insulator!
Bob . . .
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