Client – Network Rail Infrastructure

Location – Doncaster to Scunthorpe, UK

Duration – 3 Years

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Overview

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The overall project forms part of Network Rail’s CP6 programme for Electrification & Plant on the LNE route and consists of the renewal of the Signalling Power Distribution System on a line of route approximately 44km in length.

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The project aims to renew the Signalling Power Distribution System for the routes between Foreign Ore and Doncaster. This renewal will maintain the asset's availability to enable the continuation of route operations throughout the life of the new assets.

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As a result of these works, there will be significant safety and performance benefits including:

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• Existing assets not compliant with BS7671 and the Electricity at Work Regulations will be brought into compliance.

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• Enhanced power supply reliability, upgraded and enhanced cabling and route.

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• A dual-end feeding arrangement, together with a backup generator and UPS will improve asset availability and reliability.

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• Removal of 650V power from existing Location cases to increase spatial capacity for further signalling growth

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Our Solution

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The project was executed in a phased manner, beginning with the installation of civil infrastructure along the route between Scunthorpe and Doncaster. This initial phase encompassed the installation of GRP trough routes, flat ground and minor retained bases, as well as the construction of screw piles to support raised stagings.

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Following this, the project advanced to the installation of cables and the delivery of Functional Supply Points (FSPs) along the route, which necessitated the construction of a new 6+2 track Under Track Crossing (UTX). Concurrently, new Signalling Power Supplies (PSPs) and Auxiliary Signalling Power Supplies (ASPs) were installed between Scunthorpe and Doncaster. These upgrades facilitated the implementation of an enhanced 650V distribution power supply, enabling the transfer of signalling power to the new system.

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A key challenge of the project was upgrading the Doncaster PSP and the existing 650V power supplies to enhance power reliability. This included commissioning signalling supplies fed from the newly established 650V distribution feeder arrangement in a carefully staged process.

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