Braided wire of length L is used to transmit a maximum DC power P from a solar p
ID: 1337031 • Letter: B
Question
Braided wire of length L is used to transmit a maximum DC power P from a solar panel array to an inverter and battery bank. Each braid within the wire has diameter d. The solar array produces a maximum voltage V.
Building code requires that a large enough wire be used such that less than 2% of the power generated by the solar array durring peak operation is lost as heat generated within the wire.
Part A - How many braids are required to meet building code for the solar array?
The resistivity of the wire material is .
The resistivity of the wire material is .
N=0.02/ (PL/V^2d^2) N=/0.02 (V^2d^2/PL) N=/0.04 (V^2d^2/PL) N=/0.08 (V^2d^2/PL) N=0.08/ (PL/V^2d^2) N=0.04/ (PL/V^2d^2)Explanation / Answer
resistance =resistivityx length/area