Twisted Bus Bar Design

AveRageJoe

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I blend in like a Ninja [emoji185][emoji102][emoji6]


mike said:
AveRageJoe said:
Im using 3 12g on 100p

Wow, I watched dozens of your videos and never realized you were doing 100p. I thought yours were the same 80p as others. Lol.
How many P are yours again? I based mine off some calc off the interwebs and the interwebs doesnt lie! [emoji3]
 

LithiumSolar

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AveRageJoe said:
I blend in like a Ninja [emoji185][emoji102][emoji6]


mike said:
AveRageJoe said:
Im using 3 12g on 100p

Wow, I watched dozens of your videos and never realized you were doing 100p. I thought yours were the same 80p as others. Lol.
How many P are yours again? I based mine off some calc off the interwebs and the interwebs doesnt lie! [emoji3]



Mine are 120p. The only reason I did that was because I wanted to use the Peter racks and 80p seemed too small, I just added 2 more rows. No technical/electrical reason.
 
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AveRageJoe said:
Gotcha, You could do the 3 bars of 2 12g twistys

Does that = 6 strands of 12g?

When folks are doing this are you always using solid wire, or do some of you use multi-strand wire? why/why not?

Just for reference, I came across this calculator the other day (https://www.wirebarn.com/combined-wire-gauge-calculator_ep_42.html). Shows the new 'gauge' that results from twisting wires together. Quick and easy estimates.

Eric
 

Alec_J

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Mar 16, 2017
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Eric Koshinsky said:
AveRageJoe said:
Gotcha, You could do the 3 bars of 2 12g twistys

Does that = 6 strands of 12g?

When folks are doing this are you always using solid wire, or do some of you use multi-strand wire? why/why not?

Just for reference, I came across this calculator the other day (https://www.wirebarn.com/combined-wire-gauge-calculator_ep_42.html). Shows the new 'gauge' that results from twisting wires together. Quick and easy estimates.

Eric


That calculator is great. I am using 12 gauge half hard solid copper wire x 2 strands. Your calculator states it is effectively 9 gauge. I am building small packs of 20.
 

AveRageJoe

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EricKoshinsky said:
AveRageJoe said:
Gotcha, You could do the 3 bars of 2 12g twistys

Does that = 6 strands of 12g?

When folks are doing this are you always using solid wire, or do some of you use multi-strand wire? why/why not?

Just for reference, I came across this calculator the other day (https://www.wirebarn.com/combined-wire-gauge-calculator_ep_42.html). Shows the new 'gauge' that results from twisting wires together. Quick and easy estimates.

Eric
Yeah that is 6 strands but now that Im thinking about it he could probly use a smaller gauge because he is building a huge bank and the amp draw will be tiny. But then again more copper would be less resistance. I used that link earlier today for possible changes to my lil setup :cool:
 

daromer

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6*2.5mm2 is what i use for 80p.
 
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6 x 12 AWG (2.5mm2). is that 3 strands twisted for positive side and 3 for negative? Or 6 and 6? I'm guessing 3/side.

Is there a reason for doing the twisting other than 12 AWG wire is easier to get and probably costs less / foot after twisting than regular 6 AWG.
 

Korishan

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3 per side.
and yes, easier to get, cheaper overall, and the twisted trio is easier to bend than sold core.
 

Robert Baumer

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May 6, 2017
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I hope to come up with a unique design. I am using 10 * 24 = 240p packs. I will be using 5 - 6 awg solid copper which I am hoping to thread and then screw into a screw into a 8" copper flatbar .5" x .75", maybe 1" instead of .75". Kicking myself in the arse that I missed the 20% off from online metals. I then will tap a post into each flatbar to except a 0 awg battery cable. I also got my 709A spot welder hoping it helps out with the 5a glass fuses.
 

neilmc

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May 22, 2017
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4x 2.5mm2 here per side for 100p here. I didn't use any method to come to that, except "looks reasonable"

As it loops around the ends on each side are 8x 2.5mm2 into a ring terminal advertised as a 4awg terminal and it's a decent fit.
 

daromer

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8*2.5 for 100p is same as i use in terms of 6*2.5 for 80p. That would do the job m8!
 

AveRageJoe

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Robert Baumer said:
I hope to come up with a unique design. I am using 10 * 24 = 240p packs. I will be using 5 - 6 awg solid copper which I am hoping to thread and then screw into a screw into a 8" copper flatbar .5" x .75", maybe 1" instead of .75". Kicking myself in the arse that I missed the 20% off from online metals. I then will tap a post into each flatbar to except a 0 awg battery cable. I also got my 709A spot welder hoping it helps out with the 5a glass fuses.
That sound cool. Cant wait to see it [emoji106]
 

Terry

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Jul 18, 2017
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daromer said:
8*2.5 for 100p is same as i use in terms of 6*2.5 for 80p. That would do the job m8!

I'm looking heavily at going with 8 * 2.5mm2 for my 120p
 

kktuo

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May 19, 2017
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I'm worried for my installation, i want to do 14s 192p ( about 500Ah for 18650 2.6Ah), i am using only 4 bus bar 11 AWG, about 4mm2, can be enough?



PD: sorry i created a new thread in correct place for ask it
 
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