i think many RailPro users (including myself) use #12 wire for the bus cable from the power supply(ies).  when i wired my layout, i found that 12AWG Romex was the cheapest way to go.  i stripped off the covering and used the black and white conductors--plus i have a supply of bare copper #12 wire that comes in handy for lots of things.  when i wanted to tap power from the #12 to the rail i stripped about 1" of insulation off the bus wires, wrapped the feeder wires around it a few times, and soldered the joint.  it has worked fine for me.

Ken

Thanks for the response Paul.  I saw the 15 number on the website.  What about the length of the buss run?  Is there a noticeable power drop off the further away from the module the run goes?  Does that 15 locos drop down to a much lesser number if running numerous locos out in the "boonies" as it were, and thus drawing down the power on the entire circuit for that module due to the distance from the power source?  Jeff

Quick update, there was a short circuit in the module and Ring will repair at no cost.

Under the "New Users Start Here / Introduce Yourself" thread, Jeff asked, "Any input on how to go about installing the system, i.e number of power modules needed, where to locate said modules ( grouped in one place or distributed about the layout) etc. and any other tidbits will be greatly appreciated."

As they say, "it depends...."
Ring advertises that the PWR-56 has 56 Watts of output power to drive 15 or more typical modern HO scale locomotives.

I have three on my layout. My layout is an around the room, double-deck arrangement with a center peninsula. The room is ~21' x 20'. I have a construction blog about it over on the MRH website (I think you know that). Just search on "SP Lordsburg Sub - Construction".
* One for both the upper and lower return/staging loops  - each has seven (-7-) tracks.
* One for the lower operating level.
* One for the helix and the upper operating level.

Based on the way I have them allocated, I'm thinking I won't ever approach having 15 locos on any one of them simultaneously.
Mine are all located in one central location in the center peninsula, so its not a long reach to any part of my layout.

Hope that gives you an idea of what you might need for yours!

i don't have a photo handy, but when i did this i added a covering of Kapton tape to the module to protect the "guts" from an inadvertent short.  the install turned out fine.

go for it!!

Ken