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Wiring

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  • Member since
    January 2008
  • 1 posts
Wiring
Posted by jbird on Tuesday, January 8, 2008 2:18 PM

I am fairly new to model railroading as I have only built one HO layout and it worked but I am not convinced that it was wired with heavy enough gauge wire. So what I want to know is what gauge wire do you use for your primary for the jumpers to connect to? How big a lay out do you build before you need more power to the track, (power pacts)?

Also I am 65 years young and in great health. I want to build a new layout and would like to do N scale because to get done what I want the N scale would seem easier because of space (7' x 11' with walk way in the center). What do all of you have to say Pros & cons to N scale.

Jbird

  • Member since
    March 2005
  • From: New Brighton, MN
  • 4,393 posts
Posted by ARTHILL on Tuesday, January 8, 2008 2:39 PM
Welcome to the forum. I am in HO because I can see the detail of the scenes and engines better. I sacrifice the long trains but still have great scenery. As for power, how about DCC radio. It will be the best toy in the train room. I started out with DC and slowly went to DCC radio. If I would have started there I could have saved a bundle of money and time. For wire, I use # 12 for the bus and 18 - 20 for the feeders.
If you think you have it right, your standards are too low. my photos http://s12.photobucket.com/albums/a235/ARTHILL/ Art
  • Member since
    February 2005
  • From: Vancouver Island, BC
  • 23,330 posts
Posted by selector on Tuesday, January 8, 2008 2:41 PM

Hello, and welcome to the forum.

Most of us overdo the wire gauge thing.  Unless you need the equivalent of a household circuit with its 12 gauge wire, you could probably get away with 14-16 gauge wire very easily as the main power bus.  The bus is like the water main running past your frontage under the ground, and the feeders are like the pipe that runs into your house.  The guage most of us use, if we can keep their lengths under 3', is 22 gauge.

Therefore, you are likely to not have any problems with power.  The only problem would be if you have the one central power distribution centre and run a bus for 100', say, perhaps somewhat less, and you are using 20 gauge wire for your bus.  If you need to deliver a full 8 amps to the very end of that bus, and then up through a set of feeders, it will mean a lot of heat building under the insulation.  So you would enlarge your gauge to something like 12 gauge in that case, perhaps even 10...although 10 is a whopping big wire!

The general rule should be to only run enough wire to satisfy the functionality of your track plan.  As a general rule, 12 gauge is often used by us for the bus, and we use 22 gauge for the short feeders.  To complicate things, though, some of us use a sub-bus (might as well use the same gauge as the bus if you have enough) and run that in separate lengths much like intermediate feeders to a portion of the layout that we want to run as a separate power block for short protection purposes.

As for N-scale, it's strictly a personal choice based on the pleasure factor.  If you can see, handle, and enjoy your N-scale products in your layout setting, then by all means.  Many of us find that our aging eyes and hands are much happier with HO, even S and O scale products as we march along.

If you have any clubs nearby, maybe an evening or two with them would steer you right?

  • Member since
    July 2006
  • From: Colorado
  • 707 posts
Posted by joe-daddy on Tuesday, January 8, 2008 6:10 PM
 jbird wrote:

I am fairly new to model railroading as I have only built one HO layout and it worked but I am not convinced that it was wired with heavy enough gauge wire. So what I want to know is what gauge wire do you use for your primary for the jumpers to connect to? How big a lay out do you build before you need more power to the track, (power pacts)?

With your 7 X 11 railraod, you can easily get by with #16 gauge wire for the bus and #22 wire is an ideal size for feeders.  Divide your layout into 2 power districts so you can isolate them for troubleshooting purposes.  Some use suitcase connectors to connect the feeders to the bus, but I prefer terminal blocks.  

 jbird wrote:
Also I am 65 years young and in great health. I want to build a new layout and would like to do N scale because to get done what I want the N scale would seem easier because of space (7' x 11' with walk way in the center). What do all of you have to say Pros & cons to N scale.

Jbird

I know  two fellows who have recently abandoned N scale and returned to HO because of the tiny size of N scale.  

Just my two cents!

Joe Daddy

My website and blog are now at http://www.joe-daddy.com
  • Member since
    February 2004
  • 394 posts
Posted by ham99 on Wednesday, January 9, 2008 4:23 PM
I started out in HO thirty years ago, but the growing family needed my train space.  Then, in 2004, I wanted another layout so I started in N scale.  The only problem I have with size is assembling MTL couplers, but I do it with an Optivisor and an Ott light.  I am 72.  My 10'x11' space is fine for N trains -- too small for HO.
  • Member since
    October 2005
  • From: Ulster Co. NY
  • 1,464 posts
Posted by larak on Wednesday, January 9, 2008 10:55 PM

16 gauge bus and 18-22 feeders will be fine here. Definitely divide the layout into power districts.

Also you might want too look up Joe Fugate's "lightbulb trick". It works really well.

Karl 

The mind is like a parachute. It works better when it's open.  www.stremy.net

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