At 02:44 PM 8/8/2013, neil n wrote: >So adding 3' of wire(s) causes a voltage drop of 0.03 Volts? Checking a few different tables I'm getting closer to 1.0-1.1R/thousand feet for #10 at room temperature, but yes, you're doing the arithmetic correctly. Assuming .03 volts and 8 amps, that three feet of wire will dissipate I^2xR = 64 x .03 = 1.9 watts.
>My panel wires have MC4 connectors crimped on. Weather-sealed connectors for PV panels. Do not disconnect under load. You might look into the Cable Clam http://www.bluesea.com/products/category/Clam , a fitting designed to pass connectors through the deck of a boat. Yrs, d |
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