Section 11 Transportation and installation surveillance
Clasification Society 2024 - Version 9.40
Clasifications Register Guidance Information - Guidance Notes for Offshore Wind Farm Project Certification, October 2022 - Chapter 2 Project Certification Modules - Section 11 Transportation and installation surveillance

Section 11 Transportation and installation surveillance

Parent topic: Chapter 2 Project Certification Modules

11.1 Module requirements

11.1.1 The purpose of this module is to confirm compliance with the design basis and that the loads imposed on the WTs and their support structure(s) during transportation and installation are within the respective design envelopes, and that the WTs and their support structure(s) are not damaged during these temporary phases.

11.1.2 This module may also be applied to ‘other installations’, as required by the applicant.

11.2 Guidance on input requirements

11.2.1 The applicant should provide the following documents to the certification body to support their reviews and surveillance of transportation and installation of the support structure(s):
  • details of the quality management system applicable to the transportation and installation, including that of relevant contractors. For IECRE OD-502 Project Certification Scheme projects, the transport and installation contractor shall operate a certified ISO 9001 quality management system;
  • loadout and installation procedures;
  • design and limiting operational environmental criteria;
  • local and global structural strength analysis;
  • lifting rigging design, lifting arrangements and lift plans; and
  • reports for loadout, sea-fastening, transportation and installation.

11.2.2 The applicant should provide the certification body with procedures and records for transportation and installation of WTs including their support structure(s), and the procedure and records for their post-installation inspection for damage.

11.2.3 If the client or applicant has engaged a MWS to evaluate and survey the transportation and installation of the support structure(s) and/or WTs, they should provide the MWS scope of work and reports/certificate to the wind farm certification body, to avoid possible duplication of effort.

11.3 Evaluation methodology

11.3.1 LR will review the documents listed in Ch 2, 11.2 Guidance on input requirements in order to confirm that loads imposed on the support structures during transportation and installation are within the respective design envelopes and environmental conditions limits and that the structures have been installed free of damage. These reviews may be supplemented by surveillance during critical stages of the transportation and installation, to be decided based on the findings of the reviews (including procedures), the criticality of the operations, and the experience of the contractors involved in the activities.

11.3.2 If the client or applicant has engaged a MWS for the support structure transportation and installation, and provided their scope is considered to be suitable to independently confirm compliance with the design basis for these temporary phases, LR will review the MWSs reports and certification in order to confirm that loads imposed on the support structures during transportation and installation are within the respective design envelopes and that the structures have been installed free of damage. In this case LR will not conduct surveillance during the transportation and installation of the structures for IEC 61400-22 Wind turbines – Part 22: Conformity testing and certification projects. For IECRE OD-502 Project Certification Scheme projects, LR shall undertake surveillance on a representative number of WTs and their support structure(s), and ‘other installations’ as applicable. This should be agreed at the design basis stage.

11.3.3 LR will review the WT installation procedure and records, and also the procedure and records for their post-installation inspection for damage of the WTs, in order to confirm that the WTs have been installed in accordance with the design basis, and that damage has not incurred during transportation or installation. Provided that the installation contractor implements a suitable quality management system for the WT installation, LR will not need to conduct a visual inspection of the WTs, otherwise sample visual inspections will be carried out on completion of the installation (this can be combined with subsequent surveillance for commissioning, refer to Ch 2, 12 Commissioning surveillance).

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