Signalling Works Testing: Siemens Application Filament Signal Test Specification
|Publication Date:||1 December 2012|
This test specification is formed of the following sections,
which correlate to the competency levels identified in
2. Wire Count
3. Function Tests
General definitions of terms are given in NR/L2/SIG/30014, however terms specific to this specification are defined in the last section of this specification.
Note: The Siemens SIMIS-W application differs from standard fitments in three main ways:
• There is an Interface case (SSB or TEB) between the electronic interlocking and the signal head,
• The signal head contains no transformers or EKR relays and is fed directly with lamp voltages from the interface case,
• There is a safety requirement for continuous earth bonding.