Part B - Verifications and approval requirements 
53 
Test object 
Test basis and intervals 
Test object 
Test basis and intervals 
Functionality of the anodes, impressed-current 
system 
During the first 2 years: annually, then depending on the 
condition (recommended every 4 years) 
Substructure: 
Welded seams (subject to cyclic loads), intactness 
of the surface of the structural elements 
In accordance with the life cycle calculations and the 
inspection plan 
Composition of the seabed surface, scouring 
During the first 2 years: annually, then depending on the 
condition (recommended every 4 years) 
Corrosion protection (visual inspection): 
• Underwater area of the structure 
• Alternating load 
• Underwater area of the substructure 
• Operational structure (support structure) 
Depending on the condition (recommended every 4 years) 
Depending on the condition (recommended every 2 years) 
Depending on the condition (recommended every 4 years) 
Depending on the condition (recommended every 4 years) 
Operational structure: Welded seams 
(subject to cyclic loads), support structure bolts 
In accordance with the life cycle calculations and 
inspection plan 
Table 2-1 : Minimum requirements with regard to the periodic inspections of support structures 
The appointed inspector shall compile a summary verification report of all the examinations 
carried out in accordance with the test and inspection plan and on an annual basis. This re 
port shall contain details on all the tests and inspections carried out in the form of an overview 
which includes the due dates and the respective results. The BSH reserves the right to de 
mand the submission of additional monitoring and inspection reports and verifications should 
a test and inspection plan be found to be inadequate or missing. Reference is made herewith 
to other directives that may be applied in accordance with SeeAnIV. This shall apply, in par 
ticular, to cases representing a danger to either structural or operational safety. 
The verification report shall be submitted by the approval holder to the approval authority, to 
gether with the status report (please refer to chapter B2.5.1) and the certificate of conformity 
(please refer to chapter B1.3.5). 
2.5.4 Documents to be submitted 
Within the scope of the periodic inspections, the following minimum documents shall be pre 
sented: 
[Doc. No. 250] Annual summary verification report of the appointed inspector (monitoring 
report - summary of the results of the periodic inspections, please refer to 
chapters B1.3.5 and B2.5.3). 
With respect to the operation, all modifications resulting from ongoing operations shall be 
documented in the operations manual. The operations manual shall be accordingly updated. 
Geotechnical documents in accordance with B3.5.4 and a statement on the stability in the 
case of a change to the morphological structure compiled in association with a geotechnical 
planning expert may also need to be submitted. 
[Doc. No. 251] Confirmation of the appointed inspector in the case of repair work or compo 
nent replacement 
This document shall contain a plausible and transparent description of the 
inspection that includes at least the following points: 
- Verification pertaining to transport procedures (towing procedures etc.) and 
repair work, as well as