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PPureli ht Power <br /> WA State Exception Criteria - Calculation <br /> This calculation justifies the additional solar load by showing the solar dead load at each <br /> attachment is less than 50 lbs (WAC 51-51-03240, R324.4, Exception Criteria). <br /> Connection Demand <br /> Spacing perpendicular to rail 32.5 in 1/2 panel length <br /> Spacing parallel to rail 48 in Max spacing <br /> Solar Dead Load 2.75 psf <br /> Solar DL Point Load 29.79166667 Ilbs <br /> OK <br />