Appendices 
115 
Appendix 6 Corrosion protection concept to demonstrate durability during 
operating time for the 2 nd release 
1. Coating protection concept 
• Division of the protection areas into zones (soil, immersion, water changes, spray, atmos 
phere) for internal and external surfaces, 
• Outline including a representation of the protection areas and the respective security sys 
tems, 
• Information concerning the composition of the coating layers (e. g. substance, number of 
layers, thickness of each layer, total coating thickness), 
• Selection of systems per zone (system number in combination with the appropriate code of 
practice (Im2: ZTV-W, NORSOK M-501/ISO 20340, DIN EN ISO 12944; C5-M: ZTV-ING, 
NORSOK M-501/ISO 20340, DIN EN ISO 12944, for example); special approvals needed for 
other polymer systems not commonly used) - Note: Only includes systems for initial appli 
cation - not repair coatings, 
• Presentation of the edge protection system: Definition of the respective locations, 
• Colour scheme, oil-repellent layer in the water change zone, 
• Suitability verification - corrosion protection test for security systems (code of practice on 
which the approval test is based; extended verifications covering, for example, abrasive 
wear, COP suitability), 
• Comparison between operating time and the protection time that can be deduced from the 
approval tests, 
• Preparation of the surfaces (according to ISO 8501, DIN EN 1090, etc.), 
• Description of the application process, incl. notes on the repair concept, 
• Application (e. g. KOR-Schein (corrosion protection qualification certificate) for foremen) 
and monitoring (for example a form according to DIN EN ISO 12944-8 and ZTV-W 218, in- 
house monitoring - external monitoring), 
• Appraisal of a potential entry of pollutants (e. g. solvents) into the seawater, 
• If necessary, presentation of electrochemical procedures. 
2. Electrochemical Protection 
• Division of the protection areas into zones (internal/external), 
• Definition of protection areas and surfaces to be protected (coated/uncoated), 
• Personal qualifications: Corrosion protection concept on the basis of DIN EN 15257 (mini 
mum level 2), 
• Calculation of the power requirements and the number of anodes needed, 
• Galvanic anodes: Material consumption over 25 years, assurance of the uninterrupted avai 
lability of anode material on or within the structure, 
• Information concerning metal accumulation (in g/m 2 3 ) in the water of the wind farm area due 
to galvanic anodes (worst case consideration), 
• Impressed current (e. g. anode material, amperage, driving voltage), 
• Number and type of anodes, durability (material removal).