***Note, you must DOUBLE the length of your cable!!!
If you notice locomotives slowing down in some or all spots on your train layout it may be due to voltage drop due to wiring. The example below uses 40 feet of 24 gauge wire as an example. You can see we have a staggering 29% loss!
If you do not own a multimeter here is a link to an inexpesive one from Home Depot - http://www.homedepot.com/p/Powerbuilt-Digital-Multi-Meter-648349/204505225
** Results may change with real wires: different resistivity of material and number of strands in wire