LUL - T0533
Signal equipment service specification Delta track circuit units Style A, B, C and D
| Organization: | LUL |
| Publication Date: | 1 November 2011 |
| Status: | inactive |
| Page Count: | 12 |
scope:
This Specification is written to comply with Engineering Standard 1-202 in defining the requirements for the servicing of all styles of 10 KHz Delta Track Circuit Units, also known to as 'Delta Units', which are used extensively in the signalling system on the London Underground.
The specification hierarchy which supports these requirements is detailed in Attachment 3 to the Specification.
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