Structural steelwork for substations.

Steelwork fabrication and finishing to EN 1993 Eurocode, EN 1090 Execution Class 3, including galvanising to EN 1461 Standards, design life of 50 years to EN ISO 9223.

Fabrication and galvanising carried out at one location, 50,000 sq feet of fabrication space, 30,000 Sq feet of galvanizing space for items up to 14 meters in length. Combined manufacturing space of 80,000 sq feet on a single site of over 2 hectares.

Supplying substation steelwork to National network operators and tier 1 contractors delivering transmission and distribution projects across Ireland, UK and Europe.

Quality Management System (QMS) ISO 9001 & Environmental Management System (EMS) ISO 14001.

Product Range.

Lightning protection masts: Lightning masts and poles to the heights set out in the project lightning protection study. Our 14-metre double-dip galvanizing capacity covers the mast and column lengths typical of these structures.

Modular equipment support frames: Support frames for containerised and modular equipment – switchgear modules, control equipment enclosures and distribution centre units, fabricated to suit supplier spatial and loading data.

Secondary and cable management steelwork: Cable support brackets, tray support systems, droppers and secondary steelwork for cable chambers, troughs and undercroft areas.

Access steelwork and ancillary items Walkways, handrails, flooring, ladders, holding-down bolt assemblies and anchor hardware supplied as part of the steelwork package.

Equipment support structures.

Support steelwork for AIS equipment – disconnectors, earth switches, circuit breakers, instrument transformers and surge arresters – fabricated to the contractor’s issued-for-construction drawings, including baseplates, cleats and pre-drilled fixing arrangements to suit specific equipment details.

Post insulator and busbar support structures.

Support structures for station post insulators, busbar systems and cable sealing ends, including structures within transformer bunds.

Gantries and landing structures.

Line entry gantries and terminal structures for overhead line connections into the substation compound.

Fabrication and Galvanizing in One Facility.

Substation specifications commonly call for hot dip galvanizing to EN ISO 1461:2022, with coating thickness requirements determined by the corrosivity category of the site under EN ISO 9223 and the durability guidance of EN ISO 14713. Where a project specification requires coating thicknesses above the standard minimums – as is common for C4 and C5 environments – this is agreed at order stage and confirmed through coating thickness measurement on completion.

Because fabrication and galvanizing happen on the same site, venting and draining provisions are designed in at the fabrication stage rather than resolved between separate companies. The galvanizing bath measures 7.75m × 1.45m × 2.65m, with double-dip capacity for items up to 14 metres.

Specification and Compliance.

RequirementStandard
Structural steelwork fabrication (CE marking)EN 1090 – Execution Class 3
Hot dip galvanizingEN ISO 1461:2022
Corrosivity classificationEN ISO 9223
Zinc coating durability guidanceEN ISO 14713
Welder qualificationEN ISO 9606
Quality managementISO 9001:2015
Environmental managementISO 14001:2015

Material certification, weld records, coating thickness reports and Declarations of Performance are provided as standard. Certificates are available on request for PQQ and tender submissions.

Working With Contractors.

Substation steelwork is typically procured against issued-for-construction drawings developed by the EPC contractor’s design team, with fixing details, cleat locations and baseplate arrangements finalised once equipment-specific data is received. IPW works within that sequence: we can price from basis-of-design information, hold programme positions while detail is finalised, and accommodate the fixing and drilling revisions that follow final equipment selection.

Delivery is scheduled against site erection sequence rather than fabrication convenience, with steelwork called off in structure groups where the programme requires it.

Contact us to discuss a project.