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<p>[quote user="BMMECNYC"]</p> <p> </p> <div class="quote-header"> </div> <blockquote class="quote"> <div class="quote-user">gregc</div> <div class="quote-content"> <p> </p> <div class="quote-header"> </div> <blockquote class="quote"> <div class="quote-user">rrinker</div> <div class="quote-content"> Did you measure the voltage at the far end? If the resistance was 5.8 ohms, with a 1 amp load on the far end the voltage should drop by 5.8 volts.</div> </blockquote> <div class="quote-footer"> </div> <p> </p> <p>i did a quick experiment to verify the numbers I calculated from the Great Feeder Experiement website.</p> <p>i went to an extreme and used <span style="text-decoration:line-through;">47</span> 54 ft of 30g wire for the entire run to verify the resistance and see if a short could be detected</p> <div style="clear:both;"> </div> <p> </p> </div> </blockquote> <div class="quote-footer"> </div> <p> </p> <p>I think we have arrived at this:</p> <p><a href="https://sites.google.com/site/markgurries/home/dcc-general-best-practices/wiring-planing/power-wiring/wire-current-ratings">https://sites.google.com/site/markgurries/home/dcc-general-best-practices/wiring-planing/power-wiring/wire-current-ratings</a></p> <p> </p> <div style="clear:both;"> </div> <p>[/quote]</p> <p>we have no idea how clean the track was that was used to perform the "Great Feeder experiment"  and we dont know what was used to generate the short circuit. </p> <p>Suffice to say, perform a quarter test, if feeders are adequate, the booster or circuit breaker will trip.</p> <p>Circling back around the helix to the original question at hand.</p> <p>Two sets of feeders 180 degrees out should be adequate to get a sat quarter test.</p> <p>One set may or may not be able to trip the booster.</p> <p>Running 14GA Bus should be more than adequate.</p> <p>You can get away with small feeder sizes up to some debatable length.  This will depend on your soldering skills and over time corrosion of the connections.</p> <p>In the case of the OP, he could probably solder the 14GA right to the rail if it doesnt affect the operability of the track, given that all the helix track will never be seen by anyone but him.</p>
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