Author Topic: What does this specification mean.  (Read 891 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.
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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/
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Offline John123

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Re: What does this specification mean.
« Reply #4 on: March 15, 2020, 10:47:17 AM »
I think I know what's going on here, some countries use a comma to separate fractions of a millimeter whilst others use a dot so 28,27mm doesn't register as 28.27mm to dot using folk (took me a few seconds for it to click). At first 28,27 reads as two thousand eight hundred and twenty seven.
« Last Edit: March 15, 2020, 11:51:21 AM by John123 »

Offline Mads Barnkob

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Re: What does this specification mean.
« Reply #5 on: March 15, 2020, 08:31:49 PM »
I think I know what's going on here, some countries use a comma to separate fractions of a millimeter whilst others use a dot so 28,27mm doesn't register as 28.27mm to dot using folk (took me a few seconds for it to click). At first 28,27 reads as two thousand eight hundred and twenty seven.

You are right. I am from comma country and I do try to write all my stuff as dot separator, as I do write in English and the dot is used in the native english speaking countries :)

Learn more: https://en.wikipedia.org/wiki/Decimal_separator#Arabic_numerals
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Offline John123

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Re: What does this specification mean.
« Reply #6 on: March 17, 2020, 09:55:09 PM »
I think I know what's going on here, some countries use a comma to separate fractions of a millimeter whilst others use a dot so 28,27mm doesn't register as 28.27mm to dot using folk (took me a few seconds for it to click). At first 28,27 reads as two thousand eight hundred and twenty seven.

You are right. I am from comma country and I do try to write all my stuff as dot separator, as I do write in English and the dot is used in the native english speaking countries :)

Learn more: https://en.wikipedia.org/wiki/Decimal_separator#Arabic_numerals

Funny how a few extra pixels mean different things around the world! Are there any things native English people write online which look funny to places where English isn't the first language?

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Re: What does this specification mean.
« Reply #6 on: March 17, 2020, 09:55:09 PM »

 


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