| Client: | ESB Networks |
| Main Contractor & PSCS: | Cleantech Civils |
| Location: | Inchicore 220kV substation, Dublin |
Cleantech Civils were responsible for constructing a new 220 kV GIS building in compliance with BCAR regulations, consisting of a Steel Portal Frame with Cladding and Blockwork and 2Nr transformer bays and all associated works.
Key Features of our Scope of Works
- Construction of a new 220kV GIS Building – Steel Portal Frame with Cladding and Blockwork. The building spans 524m² over two floors (1,050m² in total), included all Mechanical and Electrical Services and associated works.
- 2 No. Transformer Bays including 8m high RC blast walls.
All civils works including the:
- Enabling works over 10,000m2 area handling excavation, disposal, and filling to achieve required site levels.
- Installation of electrical ducting, and associated bases, bunds and chambers.
- Construction of new access points to the substation, new boundary walls, fence and new internal road.
- Drainage for surface water and installation of earth grid, telecommunication ducting and chambers and M&E Services to the building and all associated works.
- The installation of a new drainage system, distinct from public foul and surface water connections.
- Associated works included the construction of foundations for outdoor equipment, installation of fibre ducting, and C2 chambers for new fibre connections between Harold’s Cross 110kV Substation and Inchicore 220kV Substation.
Key Features of our Scope of Works
-
- Construction of a new 220kV GIS Building – Steel Portal Frame with Cladding and Blockwork. The building spans 524m² over two floors (1,050m² in total), included all Mechanical and Electrical Services and associated works.
- 2 No. Transformer Bays including 8m high RC blast walls.
All civils works including the:
- Enabling works over 10,000m2 area handling excavation, disposal, and filling to achieve required site levels.
- Installation of electrical ducting, and associated bases, bunds and chambers.
- Construction of new access points to the substation, new boundary walls, fence and new internal road.
- Drainage for surface water and installation of earth grid, telecommunication ducting and chambers and M&E Services to the building and all associated works.
- The installation of a new drainage system, distinct from public foul and surface water connections.
- Associated works included the construction of foundations for outdoor equipment, installation of fibre ducting, and C2 chambers for new fibre connections between Harold’s Cross 110kV Substation and Inchicore 220kV Substation.
How Cleantech Civils Added Value
Our proficient team, well-versed in similar projects, brought their expertise to address challenging aspects of the project. A critical and complex component was the surface water drainage system, particularly for the roof and hard standings. The storm drainage, originating from the proposed 150m3 storm attenuation, required meticulous planning for the route to the outfall. Temporary measures were implemented to secure earthworks stability and ensure the safety of groundworkers, especially as the drainage entered the secure site beneath the boundary wall at a depth of approximately 2m.
This intricate drainage system comprised 11 manholes and 103m of storm drainage, connecting to roof downpipes and ACO channels. Navigating the route from the attenuation area to the outfall posed challenges due to existing services, necessitating trial excavations and the use of a vacuum excavator to mitigate the risk of service strikes/clashes. Following the successful installation, backfilling, and testing of the drainage system, subsequent tasks included the installation of earth grid, telecommunication ducting and chambers, electrical ducting, and associated bases, bunds, and chambers. Rigorous testing procedures confirmed the integrity of the electrical ducting in accordance with ESB specifications.
Working in close proximity to the existing 220kV substation in Inchicore presented challenges to our operations and lifting capabilities. Safety measures, including the erection of bunting and definition of exclusion zones, were communicated during morning briefings to mitigate risks associated with working near high-voltage electrical lines.
How Cleantech Civils Added Value
Our proficient team, well-versed in similar projects, brought their expertise to address challenging aspects of the project. A critical and complex component was the surface water drainage system, particularly for the roof and hard standings. The storm drainage, originating from the proposed 150m3 storm attenuation, required meticulous planning for the route to the outfall. Temporary measures were implemented to secure earthworks stability and ensure the safety of groundworkers, especially as the drainage entered the secure site beneath the boundary wall at a depth of approximately 2m.
This intricate drainage system comprised 11 manholes and 103m of storm drainage, connecting to roof downpipes and ACO channels. Navigating the route from the attenuation area to the outfall posed challenges due to existing services, necessitating trial excavations and the use of a vacuum excavator to mitigate the risk of service strikes/clashes. Following the successful installation, backfilling, and testing of the drainage system, subsequent tasks included the installation of earth grid, telecommunication ducting and chambers, electrical ducting, and associated bases, bunds, and chambers. Rigorous testing procedures confirmed the integrity of the electrical ducting in accordance with ESB specifications.
Working in close proximity to the existing 220kV substation in Inchicore presented challenges to our operations and lifting capabilities. Safety measures, including the erection of bunting and definition of exclusion zones, were communicated during morning briefings to mitigate risks associated with working near high-voltage electrical lines.
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