The measurement for each strand was .001 inches... that's 1 mil... this was
not in metric units... for example, a wire with 19 strands @ .007" per
strand would be close to 20 awg...
- John Grabski III
-----Original Message-----
From: JaMi Smith [mailto:[log in to unmask]]
Sent: Tuesday, June 17, 2003 5:03 PM
To: TechNet E-Mail Forum.; Grabski III, John R.
Cc: JaMi Smith
Subject: Re: [TN] wire gauge calculation...
John,,
Your initial post stated that: "This cable has 36 strands, measuring 1.5
mils per strand."
I took that to mean that the diameter of each individual strand was 0.00150
inches.
Based on the tables, a 46 gauge wire is 1.57 mils (0.00157 inches) diameter,
and a 44 gauge wire is 2.0 mils (0.00200 inches) diameter.
My gut feeling is that if you measure a single strand again it will turn out
to be 1.57 mils (as opposed to your original statement of 1.5 mils), which
would mean that the individual strands making up your wire are each 46
gauge.
Is it possible that there is an error in your initial post, and are you
meaning to say that your measurement was 0.15 mm diameter, as opposed to 1.5
mils diameter?
Is it possible that you are confusing "area" with "diameter"?
Where are you getting your numbers?
What is the total diameter of your wire (all 36 strands)?
What would you say that you think the approximate AWG of the wire is
(including all strands)?
It seems that whatever the actual gauge, with the large number of very fine
strands, you may have a wire that is intended to be very flexable. The "MIL"
folks do this kind of thing occasionally.
Is there per chance any marking on the wire itself or possibly the spool?
JaMi
* * * * * * * * * *
----- Original Message -----
From: "Grabski III, John R." <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, June 17, 2003 12:58 PM
Subject: Re: [TN] wire gauge calculation...
> All my calculations are leading me towards 30 1/2, 31, and 32 AWG...
Where
> are you getting a 46 or 44 from my figures? :)
>
> -John Grabski III
>
> -----Original Message-----
> From: JaMi Smith [mailto:[log in to unmask]]
> Sent: Tuesday, June 17, 2003 1:53 PM
> To: TechNet E-Mail Forum.; Grabski III, John R.
> Cc: JaMi Smith
> Subject: Re: [TN] wire gauge calculation...
>
>
> John,
>
> Here is one link to a Coilcraft site and three links to Alpha Wire
&Cable's
> site.
>
> It looks like you are possibly dealing with 46 gauge wire, or even 44
gauge,
> and you might want to take another look at the exact measurements based on
> these charts.
>
> This Coilcraft link seems to agree pretty much with the link provided to
> reawire in a previous post, although these charts only cover solid wire,
and
> not stranded, as it appears that you need.
>
> ===> http://www.coilcraft.com/awg.cfm
>
> ===> http://www.alphawire.com/pages/341.cfm
>
> ===> http://www.alphawire.com/pages/379.cfm
>
> ===> http://www.alphawire.com/pages/380.cfm
>
> Based on what I see by looking at the above charts, it appears that your
> particular stranded wire may not be in accordance with the standard AWG
> (American Wire Gauge) table, and might be fabricated to some other
"gauge".
> It may possibly be made to a "MIL" spec, although I am pretty sure that
they
> also conform to the "AWG" standard.
>
> Please note that some "MIL" spec wires do in fact have a large number of
> small strands, and this would possibly be the answer to your specific
wire.
>
> It occurs to me that there is also a "British Wire Gauge" of some sort,
> although I have not heard of it in ages. Quite possibly there is also a
> standard metric "Gauge" or two floating around out there that I am not
aware
> of.
>
> Please remember also that wire is measured in "Circular Mils", which is
not
> the same as the "Square Mils" that we are familiar with in dealing with
> cross sectional area of a copper trace on a PC Board. A "Circular Mil" is
> only 78% of a "Square Mil".
>
> Also, if you do any internet searches, remember to search using the both
the
> spelling "gauge" and "gage", since both are used and both are considered
> "correct"
>
> Hopefully this has been of some help,
>
> JaMi
>
> A quick search dug up the following additional information, although I am
> not sure how reliable it is:
>
> ===> http://www.reade.com/Conversion/wire_gauge.html
>
> ===> http://www.mogami-wire.co.jp/e/cad/wire-gauge.html
>
> ===> http://www.raelectrical.com/wire_gauge_conversion_chart.htm
>
> ===>
>
http://www.metric.fsworld.co.uk/siwire_elect.htmhttp://www.metric.fsworld.co
> .uk/siwire_elect.htm
>
> ===> http://www.pianoworld.com/wire_conversion.htm
>
>
>
> * * * * * * * * * *
>
> ----- Original Message -----
> From: "Grabski III, John R." <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, June 17, 2003 4:31 AM
> Subject: [TN] wire gauge calculation...
>
>
> > Good morning, all...
> >
> > Our cable assy plant uses a chart made by T.E.S.L.A. to calculate
Circular
> > Mil Area and wire gauge... and for the most part it is completely
> useful...
> > But recently we received in some cable in need of calculation, and our
> chart
> > does not go smaller than 29 gauge though... This cable has 36 strands,
> > measuring 1.5 mils per strand. Can anyone help me with a URL or a
> makeshift
> > chart including smaller wire gauges?
> >
> >
> > Much appreciated.
> >
> >
> > -John Grabski III
> > Badger Technologies Inc.
> >
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