How to size a "post" to amperage
How to size a "post" to amperage
(OP)
Hello,
I am an ME and have virtually no experience in the electrical world. However, I have been tasked to determine the required cross-sectional area for a "post". (I'll attach an image to clarify).
I have 15 VDC & 225 amps incoming to this "post". This will be made out of Titanium. Is there a way to determine a safe cross-sectional area for the post with this load?
Thanks in advance!
I am an ME and have virtually no experience in the electrical world. However, I have been tasked to determine the required cross-sectional area for a "post". (I'll attach an image to clarify).
I have 15 VDC & 225 amps incoming to this "post". This will be made out of Titanium. Is there a way to determine a safe cross-sectional area for the post with this load?
Thanks in advance!






RE: How to size a "post" to amperage
It will be interesting to see what the group comes up with.
Good on ya,
Goober Dave
RE: How to size a "post" to amperage
I'm going to say a 1/0 AWG copper (bare in air) is good for a little over 250A, and 1/0 is about 0.33" in diameter. You need 12X the cross-sectional area to equal it with titanium, so something around 0.57" titanium.
Again, don't rely on my answer... There are others in this forum with more experience in such matters. And whatever you decide, you'll need to test it thoroughly.
Good on ya,
Goober Dave
RE: How to size a "post" to amperage
RE: How to size a "post" to amperage
RE: How to size a "post" to amperage
Why does the post have to be made of Titanium"?
RE: How to size a "post" to amperage
RE: How to size a "post" to amperage
wareagle, we chose Ti for corrosion purposes...seawater will be flowing through one side of this connection.
Approximately 30 gpm, which will also aid in cooling. We plan on using a conductive paste to help with contact area. All of the material will be Ti, so no dissimilar metals.
I also forgot to mention, the length of the post will be approximately 1-1/8". I'm not sure if that will factor into the equation or not.
Thanks again for all the input!
RE: How to size a "post" to amperage