NR/L2/SIGELP/27416
Alterations to Signalling Power Systems
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| Organization: | NR |
| Publication Date: | 4 March 2017 |
| Status: | active |
| Page Count: | 56 |
scope:
System Boundary
The diagrams below illustrate the system boundary and associated sub-systems of typical SPSs to which this specification applies. Other electrical architectures of an SPS also exist (examples are shown in Appendix B) but the key sub system elements are generally the same.
Purpose
This standard defines the functional and electrical requirements to be applied when undertaking alterations to existing Signalling Power Systems (SPSs).
Document History
NR/L2/SIGELP/27416
March 4, 2017
Alterations to Signalling Power Systems
System Boundary
The diagrams below illustrate the system boundary and associated sub-systems of typical SPSs to which this specification applies. Other electrical architectures of an SPS also exist...