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Bus Wire Question

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  • Member since
    February 2004
  • From: Knoxville, TN
  • 2,055 posts
Bus Wire Question
Posted by farrellaa on Monday, February 22, 2010 1:35 AM

I am getting ready to put my bus wires in and have a question about location of the wires. I have a section of mainline track that parallels another section of mainline and they are about 10" apart. The question is: can I share a common bus wire for both tracks or should I run a seperate bus under both? I would assume I would have to have both on the same electrical block or section. Any thoughts on this?

Thanks,

bob

PS: I have always thought that there was no such thing as a dumb question if you don't know the answer.

Life is what happens while you are making other plans!

  • Member since
    July 2003
  • From: Sierra Vista, Arizona
  • 13,757 posts
Posted by cacole on Monday, February 22, 2010 5:59 AM

For DCC, one bus wire for two parallel tracks is perfectly okay.  Just be sure you use wire of sufficient gauge to handle the load if you're going to be running multiple engines simultaneously.

I wired a large HO scale club layout using speaker wire and we have had no voltage or power loss problems anywhere.

  • Member since
    December 2004
  • From: Bedford, MA, USA
  • 21,483 posts
Posted by MisterBeasley on Monday, February 22, 2010 6:19 AM

For what it's worth, I agree.  Typically, your feeders will be about a foot long anyway, so that will easily reach either track if you center the bus wire between the two lines.

It takes an iron man to play with a toy iron horse. 

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Monday, February 22, 2010 8:16 AM

 If both are in the same power district, then a single bus run down the middle will work just fine. No need to double up when the tracks are parallel. If you break up the layout into multiple power districts then it will depend on where the dividing line is. If each of the two parallel tracks is in a different power district then you'll obviously need two bus runs.

                         --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    February 2004
  • From: Knoxville, TN
  • 2,055 posts
Posted by farrellaa on Monday, February 22, 2010 12:28 PM

Thanks guys, I will double up on the bus in these areas. I posted this last night/morning at 2:30 am and couldn't think of the term 'power district'. I had been removing a malware virus and when I finally got rid of it I finished what I had started several hours ago; to post my question.

Thanks again,

Bob

Life is what happens while you are making other plans!

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Monday, February 22, 2010 3:28 PM

 Wait, are the two parallel tracks in the same power district or not? If they are - 3 people have said NO to doubling up - just run a bus wire down the middle and connect the feeders from both tracks. If they are two different power districts, then you do need to run a bus line from each breaker or booster and connect the appropriate feeders to the appropriate bus.

                                    --Randy


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

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