Jason:
Close, but I think you have multiplied by one too many Isc. For an
excellent description of the process, see the white paper by Berdner, now
on our web site at: http://mpandc.com/resources/resources.html. Remember,
you need to be able to put your hands on a no-back-feed certification if asked.
Wm Miller
12:22 PM 11/20/2008, you wrote:
All,
My understanding on fuse sizing, when needed or to determine if they are
needed, is to take the ISC of the module and multiply it by quantity of
strings minus 1 and then multiply by 1.25 and multiply again by the ISC to
give the amps of the system and if you go over the module fuse rating you
need to fuse all strings.
I have had tow conflicting views today on this so I'd love any feed back asap.
Thanks,
--
Jason Lombard CSBA
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