Network Rail Safer Isolations
- GRIP 5 detailed design
Navitas Engineering has been engaged by Kier Utilities and Rail to provide the detailed, GRIP 5 design for the Phase 3 of the Network Rail Safer Isolations Project in Wessex area. The scope of the project consists of installation of the Negative Short Circuiting Devices (NSCD) and associated control equipment at a number of traction substations and track paralleling huts.
Our main design activities include:
Site surveys;
Design for installation of the new NSCD equipment;
Design for all applicable interfaces between the new equipment and the existing systems including auxiliary supplies, control and interlocking (hard wired as well as digital), protection and SCADA interface;
Design for equipment not free issued to the project by Network Rail and modifications of the existing equipment. This includes design for new ancillary equipment like marshalling panels, communication interface equipment, elements of small power distribution system and modification to existing HV, DC and LV switchgear, battery chargers, and communication equipment;
Design for cables, cable routes and termination of traction power and auxiliary (control and auxiliary supplies) cables;
Design for changes to the existing earthing and bonding system;
Design for new and/or additional lighting, heating and small power systems;
Design of new LV supplies (including supplies sourced from local DNOs where required);
Management of design interface with other disciplines including civil, ETE and signalling.
