Case Study: E&P DNO Cubicles
The rural ‘Wherry lines’ between Norwich, Great Yarmouth and Lowestoft, required modernisation due to the degradation of the existing Victorian-era signalling assets. The area included nine mechanical signalling boxes and five manually controlled level crossings, which were expensive to operate and maintain.
Network Rail aimed to install new digital signalling technology, controlled by a remote computer-based signalling system, with the intent of improving the safety and reliability of the railway, increasing operational flexibility and minimising whole-life costs.
To achieve this extensive modifications needed to be made to the existing infrastructure.
The Role of RSP
- DESIGN New E&P DNO (Distribution Network Operator) Level Crossing Lighting Cubicles
- BUILD Source all the required materials and install the equipment within the DNOs
- TEST Carry out the factory testing for the DNOs
Detailed Design Requirements
- 17 Double-Sided 4-Door GRP DNO Cubicles
- NR, TOC & DNO compartments
- 3 types of cubicle widths
- 2 different door configurations
- 20% spare capacity for future design alterations
General Arrangement drawings including internal layouts, external layouts, base fixing details and label requirements. Detailed Schematic/ Wiring Diagrams As-Built Record Drawings.
Standard Equipment Types
Level Crossing Lighting & Platform Lighting Supply Distribution Boards
Domestic Distribution Boards with Type B & C MCBs & RCBOs
100A & 200A Busbar Chambers
Internal Equipment including:
- LED Lighting with light switches
- 13A Sockets
- Anti-Condensation Heaters
- Thermostats
- 8 & 14-Way Earth Busbars
Lighting Control Units with Photocells & Manual Override switches
Main Incomer & Main Isolator Switchgear
TVSS (Surge Protection)
400V Three-Phase & 230V Single-Phase Power Distribution
The Build and Test Process
All the design, installation and test work was carried out at our specialised factory site.
RSP selected the GRP enclosure manufacturer and all internal equipment manufacturers/suppliers, in agreement with the client, taking into account the availability of items and delivery times.
RSP Installation Team fitted and wired the equipment within the DNOs.
RSP Test Team carried out the Factory Acceptance Tests, verifying that the equipment was built and operating in accordance with the design specifications and all relevant Network Rail & Railway Group Standards.
The Result
The E&P DNO cubicles were completed to the agreed timescale and were successfully delivered to site, ready for Commissioning in Spring 2020. RSP takes pride in ensuring that all goods dispatched from our premises are:
Safe for use including for manual handling, electrical safety and functional purposes
Fit for Purpose to match the client requirements, the specified design and any relevant standards
Excellent Quality to meet the high standards prescribed by our Business Operating processes and the expectation of our clients.
Contact RSP to find out how we can provide your business with a cost-effective solution for your DNO cubicle requirements.