You have to be careful with this one...  Most copper planes look like
Alpine Lace cheese (well, most of the ones I have made...).   You could
take, as an example, a cross-section of the board design, subtract all the
openings and clearances, and use the result to plug into one of the
Internet-available calculators to figure current at a given copper weight
and temperature rise.  This would get you close to what you want.
A handy calculator:  http://www.ultracad.com/calc.htm  and get pcbtemp.exe
(our thanks to Doug Brooks) or check out wiregage.exe
HTH  (Hope this helps),
Roger M. Stoops, C.I.D., PCB Designer


Trimble
Engineering and Construction Division
5475 Kellenburger Rd.
Dayton, OH 45424-1099 USA
Ph: +01 937.233.8921 or +01 937.233.4574 ext 288
Fax: +01 937.233.7511






                    Doug M
                    <[log in to unmask]        To:     [log in to unmask]
                    COM>                 cc:
                    Sent by:             Subject:     [TN] Current on Copper Planes
                    TechNet
                    <[log in to unmask]
                    ORG>


                    03/07/01
                    02:52 PM
                    Please
                    respond to
                    "TechNet
                    E-Mail
                    Forum.";
                    Please
                    respond to
                    Doug M





Where can I find an up to date on-line reference for
the current carrying capacity of different weight
copper planes (not traces)..

Thanks

__________________________________________________
Do You Yahoo!?
Get email at your own domain with Yahoo! Mail.
http://personal.mail.yahoo.com/

---------------------------------------------------------------------------------

Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET
Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases >
E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700
ext.5315
---------------------------------------------------------------------------------

---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------