Extending the wires.
I have 4 turnouts with switches that are the style where you the switch either left or right and slightly depress the switch to move the turnout. there are 3 wires for operation and 2 for power. the operation side uses a red, black, and green wire. What gauge should i use for the operation side, i assume this should be stranded copper? Where can I buy that gauge 3 wire in those colors online or what brand can i buy? Layout is analog.
Thanks in advance for your help.
LilCal;
It sounds like you are using Atlas remote control turnouts (track switches). The size of wire depends on the length of the wire run from the turnout, back to the control button. If the wire will be under the table, then looks won't matter. Within reason, the bigger the wire the better. I use 18 gage wire, but a size or two smaller won't matter unless you are stringing 20+ feet of the stuff. It's not necessary to have the three colors of wire fastened together in a flat ribbon cable. Often the wire in ribbon cables is too small to reliably carry the high burst of current used to operate the turnout; over much more than a few feet. Instead, I would recommend connecting the short ribbon cable that came with your turnout, to larger, individual wires to extend the length. You can twist, or tape these three wires together, if you wish.
You can get wire, in many sizes and colors, from
www.allelectronics.com . Radio Shack (if you still have one), or a hardware store, or Home Depot, Lowes, Etc.
You are smart to keep the color the same along each wire run. This makes for less confusion, if you ever have to locate an electrical problem later. (Murphy's law of model railroading makes this very likely!:laugh

Another thing I recommend is a capacitive discharge system to operate your turnouts. This device protects the coils inside your turnouts from damage/meltdown if you hold a button down longer than a second or two; or if one of the control buttons shorts out. Both things have happened many times, and usually result in a ruined turnout. It's possible to buy a capacitive discharge unit ready made;
www.walthers.com but it's much cheaper to make your own. DonR, on this forum, has made his own capacitive discharge unit, and used it successfully for many years. He can give you info on how to build one.
Good luck;
Traction Fan:smilie_daumenpos: