SASWP03.1 - Rail Systems - Bonding, HV, OLE

Skanska SAS13 Bridge Replacement - Rail Systems WP03.1 Scope

1. Main Works:

1. Bonding:

Modification and Installation of Red Traction Return Bonds to 2 No. Feed Structures.

Removal of 1 No. Feed Structure Red Bond Installation

Modification and Installation of Return Screening Conductors

Disconnection and Modification of Structure and asset bonds along 500m of Blockade Works, Dual Track.

Installation of Structure and asset bonds to 500lm on new electrified railway works.

1. Traction Power (HV):

Testing and Commission of 2 no. 800lm HV Feeder cables and 2 No. 800lm Return Cables Feed Modification to 2 no. existing structures

Supply to 2 no. New Feed Structures

Removal of all modified Traction Power Equipment post Blockade

1. OLE:

Enabling Works including:

• Installations of switches and insulated section to 2 no. wire runs.
• Removal of switches and insulated section from 2 no. wire runs, reinstatement of OLE.

24hr Blockade Works including:

• Removal of Neutral Section equipment and providing new anchorage for 2 No. Wire Runs to new SSA's
• Complete removal of 2 No. Wire runs back to Anchor Structures, each circa 400m long
• Reinstallation of 2 no. wire runs, each 400m long including all small part steelwork
• Installation of New Neutral Section equipment at Feed Structure
• All testing, commissioning and EIS

1. Staff / Professional Service:

Supply of OLE CRE for Works

Supply of HV/E&P CRE for Works

Supply of HV Cable Testers

Supply of Rail System Manager, embedded within SAS 13 Project Team to Manage all Rail Systems Disciples

2. Enabling Works:

2. High Voltage Cable Route

Track Side Elevated GRP Trough Route - Circa 260lm Direct Buried Route - Circa 90lm

Ground Laid GRP Trough Route - Circa 140lm

Under Road Crossing Route - Circa 40lm

Cable Rack Installation through Confined Space Culvert - Circa 50lm

2. HV Cable Installation

Hauling and Installation of Approximately 1600lm of Single Core Cable 120mm2 Copper XLPE insulated with 83mm2 screen, MDPE, Graphite - Including 2 no. HV Joints Hauling and Installation of Approximately 1600lm of 19/4.22 Aluminium RED PVC Insulated Cable - Including 2 no. HV Joints

Testing and Proving of Installed Cables

2. OLE Foundations
3. No. 610mm Dia, circa 7m Long Installation via Track Mounted Plant

2. OLE Structures
2. No. Self Supporting Anchors (SSA)
1. No. Twin Track Cantilever (TTC) inc Switching Platform and Ladder Access

Installation via Track Mounted Plant

Tenderers will be issued a formal invitation to tender (ITT) with a pricing and submission document to complete.

The submission will included a balanced scorecard requesting answers to questions (along with evidence) to be submitted for review and scoring. The highest scoring tenderers will be considered preferred tenderer for the works. High level criterial of the balanced scorecard questions will include:

Health & Safety

Quality

Sustainability

Environmental

Competence

Capability

Capacity

Commercial Price

Mid tender reviews will be held prior to the submission deadline to review the scope of works with the SAS13 project team. Following the submission deadline, there will be post tender reviews to review your submissions with the SAS13 project team.

Best and final offers may be requested from tenderers.

Skanska have been employed by Network Rail (NR) to replace the existing SAS 13 bridge to increase lateral clearance below the structure to enable the construction of HS2's new depot access lines and access to the new HS2 depot via road. The existing bridge forms the rail intersection between the Stechford to Aston (SAS) line and the Birmingham to Derby Line (DBP3).

The new bridge will be a 92m single spanning structure. Skanska's appointment by Network Rail includes the design and demolition of the existing bridge and installation of the new structure.