Guidance note
NR/GN/TEL/30138
Buried Cable Route and Cable Route Through Station Platform
Issue 1, 06 March 2010 · Cable route, survey & installation
Clause map — what each clause deals with
| 1 | Purpose | Guidance for new buried cess routes and routes through station platforms |
| 2 | Scope | What it covers |
| 3 | Definitions | Definitions — buried duct route, buried station route, platform route |
| 4 | Product Approval | Product approval — innovation allowed within NR approval |
| 5 | Buried Duct Route | The components of a buried duct route |
| 5.1 | Straight Section | Straight section layout |
| 5.2 | Duct Configurations | Duct configurations — trench, bedding, backfill |
| 5.3 | Chambers | Chambers for buried routes |
| 5.3.1 | Chamber to Surface Laid Troughing Interface | Chamber to surface troughing interface |
| 5.3.2 | Draw Rope | Draw rope |
| 5.3.3 | Screening Cable | Screening cable in AC areas |
| 5.4 | Buried Duct Route Design and Construction | Design and construction references for buried duct route |
| 5.4.1 | Structural Adequacy | Structural adequacy and service life |
| 5.4.2 | Signage for Buried Duct Route | Signage for buried routes |
| 6 | Design Considerations For New Station Route | The two concepts for station routes — buried in platform vs platform route |
| 6.1 | Approval in Principle | Approval in principle for station routes |
| 6.2 | Buried Station Route Design and Construction | Buried station route design and construction |
| 6.3 | Platform Route Design and Construction | Platform route design — refuge zone and edge constraints |
| 6.3.1 | Platform Route Interfacing To Cess Cabling Route | Platform route down to the cess route |