Circuits that travel on a overhead pole line are broken through relays in the case at the location. The following are photos from the installation and
cut-over of the system.
Wednesday, November 12, 2008
Main Track Entering Signal
I am employed as Signal Supervisor for Lake State Railway and Saginaw Bay Southern Railway. One of the capital projects I had planned for this summer was to better protect a main track switch in CTC territory. During the summer I worked with National Signal Corp. and installed a "Main Track Entering Signal" at Bridgeport on the Saginaw Sub. The switch and signal are named the "59 Signal". This industrial track goes into Dixie Cut Stone. By adding this signal, it allows our railroad to clear a train from the main track in CTC territory. We have not done so yet but the option is there. The signal is constant lit and is a LED dwarf, displaying red (STOP). It is controlled by a circuit controller on the derail and on the main track switch. If permitted by the train dispatcher to open the switch and no conflicting route is lined over the switch, the signal displays yellow over red (slow approach). 
Circuits that travel on a overhead pole line are broken through relays in the case at the location. The following are photos from the installation and
cut-over of the system.
Circuits that travel on a overhead pole line are broken through relays in the case at the location. The following are photos from the installation and cut-over of the system.
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