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nuckollsr(at)cox.net
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 Posted: Mon Nov 13, 2006 5:51 am Post subject: Grounding lugs (belated response) |
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At 02:10 PM 7/16/2006 -0700, you wrote:
| Quote: | Ok, got the transponder info, now...
I am still wondering if I need to change out the 1/4" brass thru firewall
studs put in by Lancair. I am using #2 welding cable for the
batteries. If I've done the calculations correctly the diameter of AWG2
is .27", just slightly more than 1/4". Would that .02 require going to
5/16" studs?
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.25 in threaded brass is pretty light mechanically. The minor diameter
of the threads is 0.2" Given our interest in gas-tight joints it's
nice to have enough strength to put some pressure on the terminals
when torqued to near max value for the fastener.
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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blackoaks(at)gmail.com
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| Posted: Mon Nov 13, 2006 10:11 am Post subject: Grounding lugs (belated response) |
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Bob, I changed out the 1/4" brass studs for 5/16" brass as you suggest for the positive and negative thru the firewall. Thanks for the answer.
On 11/13/06, Robert L. Nuckolls, III <nuckollsr(at)cox.net (nuckollsr(at)cox.net)> wrote: | Quote: | --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckollsr(at)cox.net (nuckollsr(at)cox.net)>
At 02:10 PM 7/16/2006 -0700, you wrote:
| Quote: | ....wondering if I need to change out the 1/4" brass thru firewall
studs put in by Lancair. I am using #2 welding cable for the
batteries. If I've done the calculations correctly the diameter of AWG2
is .27", just slightly more than 1/4". Would that .02 require going to
5/16" studs?
|
.25 in threaded brass is pretty light mechanically. The minor diameter
of the threads is 0.2" Given our interest in gas-tight joints it's
nice to have enough strength to put some pressure on the terminals
when torqued to near max value for the fastener.
Bob . . .
|
--
John McMahon
Lancair Super ES, N9637M [quote][b]
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