Environmental Engineering Reference
In-Depth Information
requirements are suitable and whether the manufacturer is effectively
managing these processes for the project.
3. Welder qualifications. The CVA must have a working knowledge of
welder qualifications and how they relate to the project and be able to
determine whether project qualification requirements are suitable
and are being met by the fabricator.
4. Nondestructive testing. Tests for welds and other fastenings, blades,
and other structural systems are done to help ensure that fabrication
is proceeding according to the design documents. The CVA should be
familiar with the project requirements and how such tests are carried
out and interpreted.
5. Destructive testing (e.g., full-scale blade tests). In some cases, destruc-
tive testing may be called for in project documents to demonstrate
that equipment and systems meet specifications (e.g., blades may be
tested to failure under certain loading conditions). The CVA should
understand the project requirements and how such tests are to be car-
ried out and interpreted.
6. Blade materials and fabrication. Blade fabrication is a specialized
process with unique use of skin materials and substructure to achieve
the desired aerodynamics and strength. The CVA should have expe-
rience with the materials used and the fabrication process so that the
CVA can evaluate the suitability of the blade manufacturing process
and results and determine whether the manufacturer's quality control
process can be relied on to produce blades to the desired specification.
Installation CVA
An installation CVA should have expertise in the following areas:
1. Evaluation of installation plans and procedures. The CVA must be
familiar with how offshore installation activities are carried out and
be able to review project procedures and plans for correctness and
suitability for site-specific conditions.
2. Witnessing of installation operations including loadout, towing, launch-
ing, uprighting, submergence, and so forth. The CVA must have expe-
rience with offshore installation activities and have knowledge sufficient
to document the activities and identify any anomalous conditions.
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