Author Topic: What does this specification mean.  (Read 174 times)

Offline thedoc298

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What does this specification mean.
« on: January 31, 2020, 04:44:17 AM »
The 28,27 in the picture


Offline MRMILSTAR

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Re: What does this specification mean.
« Reply #1 on: January 31, 2020, 05:11:41 AM »
What part is confusing? The only parameter that was a little unusual was the 28.27 square mm copper area of the tubing. I believe that this means the cross sectional area of the copper. I have never seen anyone use this spec before.
Steve White
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Retired electrical engineer

Offline thedoc298

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Re: What does this specification mean.
« Reply #2 on: January 31, 2020, 05:59:07 AM »
What part is confusing? The only parameter that was a little unusual was the 28.27 square mm copper area of the tubing. I believe that this means the cross sectional area of the copper. I have never seen anyone use this spec before.


Yes that was it, don't use metric that much is why it looked strange. Thank for the info, now I can sleep.

Offline Mads Barnkob

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Re: What does this specification mean.
« Reply #3 on: January 31, 2020, 08:44:21 AM »
The 28,27 in the picture

I wrote it :)

It is the cross section in square millimeters, in order to put the correct "wire size" into calculators for primary coil calculations. JavaTC asks for a wire gauge, but if you enter the total cross section of the outer diameter, you would get a erroneous result.

For the same reason to avoid confusion, I added both the European and American wire gauge tables into one: http://kaizerpowerelectronics.dk/theory/wire-size-table/
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics

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Re: What does this specification mean.
« Reply #3 on: January 31, 2020, 08:44:21 AM »

 


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