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Part B - Verifications and approval requirements 
Workshop planning and the welding procedure specifications shall be inspected with respect 
to their conformity with the implementation documents presented in the design review proc 
ess. 
The regular inspections to be carried out at the welding company during the production mon 
itoring phase by the appointed inspector include the following checks: 
• Inspection of the material certificates 
• Consultation of the reports on the welding work carried out and the results of the non-de 
structive tests 
• Inspection of the whole production process (products and processes, in particular the ef 
fectiveness of the QM system) and the implementation of the non-destructive tests, and 
• Final inspection of the finished components: 
- Dimensions and tolerances 
- Corrosion protection implementation (e.g. preparation of the surface and coating thick 
nesses) 
- Visual check with respect to the general condition and possible damage 
- Transparency and traceability of the components and materials/semi-finished products 
used and 
- Inspection of the production documentation. 
2.4.2.1.3 Monitoring of the production phase (concrete structures) 
The following documents shall be submitted to the appointed inspector for both reinforced 
and unreinforced concrete components: 
• Installation plans 
• Formwork and reinforcement plans 
The regular inspections to be carried out during the production phase by the appointed in 
spector are to be conducted based on the „Recommendations for the supervision of wind 
energy plants“ (BÜV) and in accordance with the valid standards: 
• Inspection of the formwork with respect to 
- Limit dimensions, deflection of the plumb line 
- Formwork anchors 
- Tightness and cleanliness 
- Possible pre-treatment and 
- Release agents (enquiry to and instructions from the manufacturer). 
• Inspection of the fixtures with respect to 
- Their position and how they are secured in place 
- Adverse effects on concrete compaction and 
- Reduced cross-section. 
• Checking the reduced cross-section as a result of recesses and conduits. 
• In the case of joints, checking the 
- Joint configuration (seals) and 
- Construction joints (roughness).