Sparky,
Check out the SPD manual from Bussman for the fault calcs data. I know that you will love this manual, as it has a ton of information in it.
Go to this URL
http://www.bussmann.com/tech/applications.html and select the SPD manual [Bussman Electrical Protection Handbook].
If that link doesn't take you directly to the page with the SPD handbook, go to their homepage
http://www.bussman.com/ and from the side menu, select "Technical Services", then from the drop down box, select "Software Programs, Applications, Selection Assistants, Educational Data", which will take you to the page containing the handbook.
a few notes on the handbook:
First off, it is a large file, so be ready for a long download!.
Secondly, it contains over 100 pages, so it's best to save it to your hard drive in a temp folder that's easy to find, then view and print it off-line.
Lastly, It's a .pdf file, so you will need the Adobe Acrobat reader in order to view it. If you don't already have this, go to the Adobe web site and download the free reader.
Before you go to get the SPD handbook, configure the Acrobat reader so it does not open the file while you are on-line. Make it have the file saved to disk instead of opening it directly through the plug in.
Have fun!!
Bill,
Hope this information and links are OK with you. If not please let me know and I will not do again in future.
P.S. do you have anything in your bookstore that would cover the area which Sparky needs? [SCA calcs].
I would suggest to Sparky and anyone else, to get no less than two [2] books on this subject, or any tech subject. So do check out ECN's bookstore for any data on SCA calcs.
Scott "S.E.T."