Forum Discussion
BFL13
May 29, 2014Explorer II
TechWriter wrote:mena661 wrote:
You only need fuses on solar when you have a 3 or more string array.
You have a source for this?
http://www1.cooperbussmann.com/pdf/9df1f7ec-8c62-4210-8cf8-9504927394f0.pdf
"PV systems that have three or more strings connected in
parallel need to have each string protected (systems that
have less than three strings will not generate enough fault
current to damage the conductors/equipment and
therefore do not present a safety hazard as long as the
conductor was sized properly based on local code
requirements)."
"Once it has been determined that maximum short-circuit current
.... exceeds continuous current rating of conductor, follow the
recommendations of selecting the proper PV string fuse."
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