NABCEP PV Installer Resource Guide Forum

NABCEP PV Installer Resource Guide Feedback Board => Section 9: Study Guide Review Questions => Topic started by: Victor on April 04, 2014, 04:51:18 PM

Title: Question 8 nominal voltage
Post by: Victor on April 04, 2014, 04:51:18 PM
In question 8 on page 151, the question is to find max wire run distance for a PV output circuit from combiner box to inverter for a 2% voltage drop.  The given solution uses 240 V for the nominal voltage, however the DC voltage in that circuit appears to be (14 modules) X (29.5 V Vmp) = 413 V.