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This forum has provided great guidance. One thing  I believe that's true of any subject: folks that have been into the subject for a while, use terms that others with their knowledge level quickly understand. While those new to the subject haven't "learned the language" yet. One quick example is when the inner and outer rail are noted in an instruction on track. The inner or outer rail is from your perspective in relation to the track. If the track is in an oval , and I am standing inside the oval, I might determine that inner rail is the rail closest to me. Standing outside the track and coming from the transformer, outer rail might be determined to be the first rail I come to. In other words outer and inner in perspective to what.  I looked at some of the questions on the Lionel blog and determined a wide variance of knowledge levels-from newbie to train runners with vast experience. Another example is describing how a bus is laid out- from transformer track binding posts(hot/gnd) 2 wires running alongside track, with feeders running from bus to track. Many newbies asked what happened to the ends of the hot/gnd wires that came from the transformer, at the end point of the bus. Questioned whether to put electrical tape over the bare ends to insulate them or run the hot back to the hot binding post on transformer to close the loop, same for gnd bus wire-back to transformer gnd binding posts.  When I see the same question asked numerous times, makes me realize, the answers maybe more advanced than what the person is asking. There will be of course offline reading and homework, but as this forum is used by many, to get to running trains in a timely fashion, understanding what folks are asking can get them up and running and keep the hobby user friendly to newcomers.

 

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Last edited by Old Creosote
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There are a lot of terms that get thrown around and many of the techniques are old hat to many so details might get glossed over in the first attempt to explain a procedure.

 

Transformers usually have two posts to feed electricity to the track - Hot and Ground. If color coded, the hot is usually red (sometimes lettered A,B,C or D on most postwar transformers). This will connect to the center rail. The Ground post is usually black (U on many postwar transformers) and connects to one of the outer rails.

The outer rail is normally viewed as the rail that's closest  to you when you are looking at, but not standing within, the loop of track. Sort of like the outer lane on a track n field running track. 

 

Keep in mind that in most cases, the two outside rails of three rail track are connected together electrically (either via the metal ties on traditional tubular track or via small metal plates on the underside of fastrack. Thus either one can accept a connection from the transformer's ground post.

The exception to this is an insulated section of track where the two outside rails aren't linked. This allows you to have one act as the normal ground while the other is used to activate signals or accessories when a train's wheels touch it.

 

The bus wires (14g stranded) normally connect to the transformer's posts via. fork spade or loop crimp connectors that can be had a radio shack, home depot, etc.

The two bus wires might follow the path of the track or they might run right down the middle of a loop. User preference really. The ends of these wires can just be covered with electrical tape. I put a small knot in the end of mine as they are routed through holes in the underside framing of my layout and the knot keeps the end from simply falling back through the last framing rib. I have my two track bus wires (hot and ground) running right down the middle of my loop, under my table with about 6" of space between them. 

Along each bus wire, I tap into it with suitcase connectors (3M scotchlok) and 18g stranded wire to create feeds to the track. I attach these feeds to the underside tabs of the fastrack using crimp on lug connectors (black (ground) to outside rail, red (hot) to center rail) every 4-6 sections of fastrack. Other brands of track don't carry current as well so they might require more frequent connections. Where you attach the suitcase connectors along the bus doesn't really matter. I try to position them to create the shortest, straightest feed track feed wire that I can simply for neatness and efficiency.

 

 

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