RRaddict2 posted:My layout is small 5 X 10 but from what it looks like #18, 20, and 24 should do it for me. Thanks guys.
With all due respect, its critical to use proper circuit protection by means of properly sizes fuses or CB's. #24 wire is only good for 2 amps, so any of that in the circuit anywhere dictates a 2 amp fuse. Attached is an update of an Excel sheet that I recently posted as a separate thread that gives at a glance what load various wire sizes are good for and their recommended fuse/CB sizes. Not to sound too dire, but if these are not heeded you can have a situation like the picture below. This was caused by a short circuit in the wiring to a Lionel light tower; not sure how much longer it would have been before fire erupted. I removed this piece of wire from under my layout this summer, and immediately went to work setting up a much better system for protection of all small accessory wires. Hope you heed my experience.
Cheers, Rod
