NR TI 171
Supplementary Point Detection - Recording and Testing
active, Most Current
Buy Now
| Organization: | NR |
| Publication Date: | 10 August 2012 |
| Status: | active |
| Page Count: | 2 |
scope:
This TI relates to a change in the number of supplementary detection elements when S&C units are being renewed. A change may arise from a change in point operating mechanism, rail profile or switch type. It applies to signalling designers, testers, and project engineers.
Purpose
A change to the number of detection elements associated with a set of points can require significant documentation and testing. This instruction provides rules to enable efficient renewals and upgrades of S&C layouts.
Document History
NR TI 171
August 10, 2012
Supplementary Point Detection - Recording and Testing
This TI relates to a change in the number of supplementary detection elements when S&C units are being renewed. A change may arise from a change in point operating mechanism, rail profile or switch...