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Drokz`s Powerwall
#11
(05-16-2019, 07:34 PM)Drokz Wrote: Hi all,
after a while, i did something again  Tongue
searching for parralel wiring..
I wonder how many amps they could handle.....
6cm X 2Cm X 1mm

It's in inches but you could convert it I suppose Big Grin

https://stormpowercomponents.com/resourc...n-selector



Wolf
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If 18 X 650 = 2200+mAh then we have power! 
May all your Cells have an IR of 75mΩ or less Smile
Last count as of 6/10/2019
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Cells  >80% of Capacity                      4334
Cells <80% of Capacity                       1605
Cells ≥2200mAh & ≥ 80% & ≤75mΩ    2800 +236
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#12
Thanx for the link !
But these are just 2 sizes, Length, width, thickness?
Inches are new to me: P
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#13
(05-17-2019, 06:26 PM)Drokz Wrote: Inches are new to me: P

Those Imperial Rebels!!!
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Proceed with caution. Knowledge is Power! Literally! Cool 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
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#14
BUSBAR DIMENSION, INCHES**
???????
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#15
It was a Star Wars joke Wink
Proceed with caution. Knowledge is Power! Literally! Cool 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
Certified 18650 Cell Reclamation Technician

Please come join in general chit-chat and randomness at Discord Chat (channels: general, 3d-printing, linux&coding, 18650, humor, ...)
(this chat is not directly affiliated with SecondLifeStorage; VALID email req'd)
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#16
@Drokz

Length is really not the deciding factor here as a particular size of a copper "wires" ampacity is not affected by it.
Now if you are talkin 20 meters then yes but that is another measurement as in voltage drop because of resistance.

So a copper bar with a measurement of 1/16 of an inch thickness and 1/2 an inch of width will carry 100 to 149 Amps
1/16 of an inch = 0.0625 of an inch      0.0625" × 25.4 = 1.5875mm
1/2 of an inch = 0.5 of an inch           0.5" × 25.4 = 12.7mm

So a 1.5875mm thick by 12.7mm wide copper bar would carry 100 Amps safely.

You have a 6cm X 2Cm X 1mm bar. I don't care about the length 6 cm  1 mm thick by 20 mm (2 Cm) width.

So 1.5875 X 12.7 = 20.16  and 1 X 20 = 20 so I would safely say your bar is capable of carrying 100 Amps.

Would you like me to take a math and conversion test for you? Tongue

Wolf
Drokz likes this post
If 18 X 650 = 2200+mAh then we have power! 
May all your Cells have an IR of 75mΩ or less Smile
Last count as of 6/10/2019
Total Number of Cells                          5940
Cells  >80% of Capacity                      4334
Cells <80% of Capacity                       1605
Cells ≥2200mAh & ≥ 80% & ≤75mΩ    2800 +236
For Info Google Drive
Not your average Wolf       
            Cool



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#17
1/16 = 25.4/16 = 1.5875mm ???

so 2Strips are good enough for 100amps
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#18
(05-17-2019, 08:08 PM)Drokz Wrote: 1/16 = 25.4/16 = 1.5875mm ???

so 2Strips are good enough for 100amps

See above. I added some more info.

But yes  your single strip of 1mm by 20mm is good for 100A
If you double them they would be good for 200A 

Think of it as if you were flattening a round copper wire the flatter the wire gets the wider it becomes.
Wire size for 100 Amps is 26.7 mm² or AWG 3

Wolf
Drokz likes this post
If 18 X 650 = 2200+mAh then we have power! 
May all your Cells have an IR of 75mΩ or less Smile
Last count as of 6/10/2019
Total Number of Cells                          5940
Cells  >80% of Capacity                      4334
Cells <80% of Capacity                       1605
Cells ≥2200mAh & ≥ 80% & ≤75mΩ    2800 +236
For Info Google Drive
Not your average Wolf       
            Cool



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#19
@Wolf

Thanks man !!!!! now its clear !!!! Big Grin

its one of the 3 parallel connections. so 3 to the negative en 3 to the positive .... with 8 or 10awg wire.
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#20
Square mm (metric) works best, sooner imperial measurements die the better!

Basically, as said above, you work out the ampacity (current carrying) ability of a bus bar or cable by its cross sectional area and environment it's in.
Yours is ~24mm x 1mm = 24sqmm cross section, assume open air.

Here's a table of values for bus bars:
https://www.australwright.com.au/technic...ar-rating/

For cables, The "Olex Handbook" is considered a reference for all things cable down here in Australia (Google for it).
Includes "in-conduit" & cable bundle ratings, different insulation types, etc
Running off solar, DIY & electronics fan :-)
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