OFS-SSS-419-R1 - Functional Specification Onshore Compensation Compound - Galvanised Fabricated Steelwork

Oct 23, 2026

Functional specification for executing permanent and temporary structural steelwork for Onshore Compensation Compounds (OCC) owned and operated by EirGrid in offshore wind power developments. Defines the Customer responsibilities for design, drawings, structural calculations, fabrication, protection, delivery, erection, certification and testing of materials, steel members, welds, components, and mechanical fasteners. Establishes compliance requirements covering Irish legislation and EU directives, including CE marking and documentation retention, plus health and safety roles under applicable construction regulations and Safe by Design approach.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages22

Reading Time55 min

AccessFree to download

1 SCOPE

1.1 STEEL FABRICATION WORKS

2 LEGISLATION CODES AND STANDARDS

2.1 LEGISLATION

2.2 HEALTH AND SAFETY

3 SUSTAINABILITY

4 WEATHER AND CLIMATE SERVICE CONDITIONS

5 GENERAL REQUIREMENTS

6 STEEL FABRICATION

7 TOLERANCES

8 MARKING AND PACKING

9 WELDING

10 MECHANICAL FASTENERS( BOLTS, NUTS AND WASHERS)

11 PROTECTION OF STEELWORK

12 TESTING

13 QUALITY CONTROL AND QUALITY ASSURANCE STEEL FABRICATION PROCESSES

14 DOCUMENTATION

15 APPENDIX A-LIST OF STANDARDS AND REFERENCES

Document Reference: OFS-SSS-419-R1 Functional Specification Onshore Compensation Compound Galvanised Fabricated Steelwork | Revision | Date | Description | Originator | Reviewer | Checker | Approver | | --- | --- | --- | --- | --- | --- | --- | | R0 | 20/04/2022 | First Issue | Vitali Garon | Daniele Giustini | Leon Notkevich, Neil Cowap | Aidan Corcoran, Richard Blanchfield | | R1 | 07/10/22 | Issued for
use after industry feedback | Phillip
Adams
(AECOM) | James Staunton Vitali Garon | Leon Notkevich, Neil Cowap | Aidan Corcoran, Richard Blanchfield | COPYRIGHT © EirGrid All rights reserved. No part of this work may be modified or reproduced or copied in any form or by means-graphic, electronic or mechanical, including photocopying, recording, taping or information and retrieval system, or used for any purpose other than its designated purpose, without the written permission of EirGrid 1 SCOPE 3 2 LEGISLATION CODES AND STANDARDS 3 3 SUSTAINABILITY 5 4 WEATHER AND CLIMATE SERVICE CONDITIONS 6 5 GENERAL REQUIREMENTS 7 6 STEEL FABRICATION 7 7 TOLERANCES 9 8 MARKING AND PACKING 10 9 WELDING 11 10 MECHANICAL FASTENERS( BOLTS, NUTS AND WASHERS) 12 11 PROTECTION OF STEELWORK 13 12 TESTING 16 13 QUALITY CONTROL AND QUALITY ASSURANCE STEEL FABRICATION PROCESSES 16 14 DOCUMENTATION 17 15 APPENDIX A-LIST OF STANDARDS AND REFERENCES 18 1 SCOPE This functional specification shall apply to the execution of all permanent structural steelwork, and to all temporary structural steelwork required for the execution of the permanent structural steelwork for use in Onshore Compensation Compounds (OCC) that will be owned and operated by EirGrid as part of Offshore Wind Power developments. This specification should be read in association with the project specific contestable works pack and project documentation and all other relevant functional specifications as issued by EirGrid. For the purpose of this specification the term Customer shall refer to Offshore Wind Power Developers, Independent Power Producers responsible for the design and build of assets to be handed over to EirGrid. 1.1 STEEL FABRICATION WORKS The design and fabrication of Steel work for all OCC Civil, Structures and Building works shall be undertaken by the Customer and shall include but is not limited to:- • Design , Drawings and structural calculations • Fabrication temporary and permanent steelwork • Protection Delivery Erection • Certification , Testing of all materials, steel members, welds, components and mechanical fasteners 2 LEGISLATION CODES AND STANDARDS 2.1 LEGISLATION Works, plant and equipment shall be compliant with the provisions of the latest applicable versions of all relevant Irish legislation and directives of the European Union. These include but not limited to the following or latest versions/ amendments as appropriate: | SI No. 132 | Safety signs regulations 1995 (implements EEC Directive 92/58) | | --- | --- | | SI No. 291 | Safety, Health and Welfare at Work (Construction) Regulations | | SI No. 299 | Safety, Health and Welfare at Work (General Application) Regulations 2007 | | SI No. 445 | Safety, Health and Welfare at Work (General Application)(Amendment) Reg. 2012 | | Reg (EC) No 1907/2006 | Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) | | --- | --- | | Reg (EC) No 1272/2008 | Classification, Labelling and Packaging of Substances and Mixtures (CLP) | | Reg (EU) No 517/2014 | Fluorinated greenhouse gases and repealing regulation (EC) No 842/2006 | | Reg (EU)
2015/2068 | Format of labels for products and equipment containing fluorinated greenhouse gases | | Reg (EU)
2015/2065 | Format for notification of the training and certification programmes of the Member States | | Reg EU 2015/2066 | Minimum requirements and the conditions for mutual recognition for the certification of natural persons carrying out installation, servicing, mainten

FAQs

What types of steelwork does the specification cover for OCC projects?

It applies to all permanent structural steelwork and all temporary structural steelwork required to execute the permanent steelwork for Onshore Compensation Compounds owned and operated by EirGrid.

What responsibilities does the specification assign to the Customer for steel fabrication works?

The Customer undertakes design, drawings and structural calculations, fabrication of temporary and permanent steelwork, protection, delivery and erection, and certification and testing of materials, steel members, welds, components and mechanical fasteners.

Which compliance requirements are imposed for legislation and standards?

Works, plant and equipment must comply with the latest applicable Irish legislation and relevant EU directives, with emphasis on requirements such as CE marking and retaining adequate documentation to demonstrate full compliance.

Oct 23, 2026

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