12-29-2020, 10:22 PM | #11 |
Vintage tech
Join Date: Sep 2009
Location: South
Posts: 3,210
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Re: Welding cable and lugs
Thanks for the great information. Tom
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12-30-2020, 10:10 AM | #12 | |
Gone Wild
Join Date: Nov 2020
Posts: 215
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Re: Welding cable and lugs
Quote:
I found a coil of about 100ft. #1 that I stashed in the basement about 40 yrs ago(actually forgot I had it). Now looking for lugs for it. Measurement is about.350 inches of what I have. |
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12-30-2020, 10:29 AM | #13 | |
Gone Wild
Join Date: Jul 2020
Location: South Louisiana
Posts: 246
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Re: Welding cable and lugs
Quote:
Wayne |
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12-30-2020, 12:31 PM | #14 |
Gone Wild
Join Date: Nov 2020
Posts: 215
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Re: Welding cable and lugs
ok thanks,as you may know welding cable is a different animal when sizing lugs.
Whats odd is some 1/0 lugs are listed for use on #1 welding cable(type W). |
12-30-2020, 01:08 PM | #15 | |
Gone Wild
Join Date: Jul 2020
Location: South Louisiana
Posts: 246
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Re: Welding cable and lugs
Quote:
Wayne |
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12-30-2020, 06:43 PM | #16 |
Gone Wild
Join Date: Nov 2020
Posts: 215
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Re: Welding cable and lugs
Im looking at the factory specs,not sellers hype.
Compression lugs are a little flexible on squish,but as you know you cant force the wire in. I looked up a T&B lug inner diameter and it said #2 was .338. My #1 wire is .350. Yea the wire gauge system is as messed up as the Kings measurement system. it goes from numbers,in our case,decending order for increase in size#2,#1,then jumps to 1/0,2/0,3/0,4/0,then to circular mils 250mcm,300 mcm,350mcm. |
01-04-2021, 12:15 PM | #17 | |
Gone Wild
Join Date: Jul 2020
Location: South Louisiana
Posts: 246
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Re: Welding cable and lugs
Quote:
Wayne |
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01-04-2021, 10:42 PM | #18 |
Gone Wild
Join Date: Nov 2020
Posts: 215
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Re: Welding cable and lugs
theres no room in welding cable to force it into a smaller lug.
Did you measure the diameter of the copper only? 5/16" is less than #2 or #1 wire. |
01-05-2021, 08:26 AM | #19 |
Not Yet Wild
Join Date: Oct 2020
Posts: 44
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Re: Welding cable and lugs
What is the "real" advantage of #1 wire vs #2. I have 2 guage now.
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01-05-2021, 09:34 AM | #20 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Welding cable and lugs
You have about a 1% increase in efficiency but no performance increase.
Folks like to show calculations using unrealistic currents and showing how much watts are lost in the cable, all true, but when you compare that "lost" wattage to how much that current means in total wattage being removed from the batteries, it is less than 3% at the most lost in the cables at those current levels. So it is like taking your car to the shop and they tell you they can do all this work and replace all these wires in your car and it will be 2% more efficient.... Obviously if you have old crunchy cables you should replace them but in my opinion 4ga cables are good for the majority of the installs and 2ga would be better if you consistently pull more than 200amps in hot climates. The quality of the connections is more important than the difference in gauge beyond 4ga. |
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