The inquired service contains the function of the client representative on site for:
- seabed, platform Inspection, Repair and Maintenance (IRM), platform Transport and Installation (T&I), Unexploded Ordnance (UXO) surveys
- Identification & Clearance, cable installation, cable repairs
The client representative monitors and observes the offshore works performed by the contractor respectively his subcontractors being contracted.
The contracting entity (TenneT Offshore GmbH) requires reliable client representatives for various kinds of work. The client representative delegated by the Contractor is monitoring and observing, on behalf of the Client, construction work and services provided offshore by a contracting party (e. g. general contractor) or its subcontractor. The work to be monitored can be divided into two categories:
- Category 1: seabed, platform IRM, platform T&I and UXO surveys
Category 1 includes client representatives services for maritime surveys and servicing and maintenance work of platform structures. The surveys include hydrographic and geophysical survey work, cable depth measurements, erosion studies and geotechnical exploration drilling. UXO surveys include a geophysical survey with an emphasis on detection of potential UXO targets which represent an obstacle to cable installation. The primary UXO detection method is a detailed magnetic survey, with other methods (such as electro-magnetic) being used to detect non ferromagnetic targets as required. The platform structures are visited as part of repetitive inspection cycles. Measurements of „sacrificial anodes“ and welding seams are made and the strength of the marine vegetation established. The platform T&I activities comprise e.g. of seabed preparation campaigns as dredging or rock placement and furthermore platform component transport and installation.
- Category 2: ID&C, cable installation and cable repairs
Category 2 includes all work that is part of sea cable installations and cable repairs as well as ID&C. This also includes but is not limited to cable loading and offloading, cable laying, jetting, and jointing as well as accompanying work such as constructing crossing structures, pre-lay grapnel run, route clearance and cable pull-ins in offshore structures etc. For ID&C it also includes supervi-sion of ROV launch and recovery, ROV diving, object identification (EOD), explosive charge placement, object recovery as well as comparable diver operations. In individual cases deployments may also be necessary during transport and installation phases when constructing the platform.