Colour Coding – Layout Wiring
Colour Coding – Wiring
For anyone new to the world of model railways, wiring up a layout can seem a bit daunting at first. When building a layout the wiring can soon grow as you add more motorised points, working signals, track power feeds, layout lighting etc. It’s best to set up some kind of an organized colour system for your layout wiring. This aids in quicker fault finding if any electrical issues arise. I speak from experience, after being asked to help sort out a friend with his layout. He’d used the same colour wire for all his wiring!! This is not the way to go, as it’ll end up with many frustrated hours trying to track down any wiring issues.
So a good idea would be to use red & black wires for the main track power supply i.e. Red for Positive, Black for negative. For the point motors such as those that come with short wires attached, three colours usually used are Red (Positive), Green (Common Return), Black (negative). Either way, whatever coloured wire coding you use for layout, stick to it & make a record of what colour wire is used for each thing. Making/drawing a wiring diagram of your layouts wiring is also recommended for any future reference.
For wires for points an example size wire is 16/02mm, & for the main power bus wires for the track something like a 25 strand wire. For a more in-depth look at wiring visit Brian Lambert’s website: