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Thread: Wiring

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    Default Wiring

    Hello I'm still new and getting ready to start my layout and was wondering what size wire to use could I use phone wire or will the phone wire going to be too small .

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    Phone wire is definitely too small for a buss wire . For me personally i would use nothing smaller than 22awg solid for feeders , and nothing smaller than 16awg stranded for a buss

    Steve

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    Ok thanks for the info looks like I make a trip to home depot

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    I used phone wire as feeders, and #16 for a buss wire from my Z21 DCC unit.
    Cheers!
    Gordon
    Rheinland Bayern Bahn
    http://www.nscale.net/forums/showthr...4-x-9-5-layout

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    Gonna need some more info to give an answer that will be correct for YOU...

    Are you DC or DCC?
    How big is your layout?
    How much do you plan to expand it?
    What's the longest run from your booster to the most distant piece of track?

    The others are right, telephone wire (usually either 22 or 24AWG) is suitable for short feeder wires from the track to the main bus, but not at all suitable for runs longer than about a foot or two. The usual thing is to use the thinner, easier-to-hide feeder wire for a short run from the track down through the benchwork to the larger bus wire.

    You really can't have too large a bus wire, barring cost and the ability to bend it and fit it under the layout. The idea is to keep the total resistance of the wire to a minimum so that the booster can detect and react to short circuits easily and so that the locos will see full voltage at the farthest end of the bus.

    That said, if you're doing something small like a hollow-core-door or smaller layout, you can probably use 16AWG, or even smaller and be just fine. If you're going larger, or if you plan on running a LOT of locos in a particular area (either long distance or heavy amp draw) 14AWG or even 12AWG might be advisable.

    Personally, my layout covers about 50 square feet in a 10x10 bedroom. The longest bus run is about 20 feet, and I used 14AWG solid wire (so it would hold shape when I bent it into place) for the bus. I could have gone smaller but 14AWG is cheap since it's common house wire. In my previous layout, a hollow-core-door sized layout, I used 16 or 18AWG wire but arranged the "bus" into a tree configuration to keep all the bus runs to no more than 2-3 feet to any given feeder point.

    That's what works for MY layout. As I said, we'd need more information on your plans to recommend what might work for YOU.
    Never mistake a guy who talks a lot for a guy who has something to say...

    CH&FR Site and Blog: http://www.chfrrailroad.net and http://blog.chfrrailroad.net
    Appalachian Railroad Technology: http://www.apprailtech.com


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