INTRODUCTION
1 Scope and object
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
4.1 Symbols and units
4.2 Abbreviations
5 Principal elements
5.1 General
5.2 Design methods
5.3 Safety classes
5.4 Quality assurance
5.5 Wind turbine markings
6 External conditions
6.1 General
6.2 WTGS classes
6.3 Wind conditions
6.4 Other environmental conditions
6.5 Electrical power network conditions
7 Structural design
7.1 General
7.2 Design methodology
7.3 Loads
7.4 Design situations and load cases
7.5 Load calculations
7.6 Ultimate limit state analysis
8 Control and protection system
8.1 General
8.2 Wind turbine control
8.3 Wind turbine protection
8.4 Functional requirements of the control and
protection system
9 Mechanical systems
9.1 General
9.2 Errors of fitting
9.3 Hydraulic or pneumatic systems
10 Electrical system
10.1 General
10.2 General requirements for the WTGS electrical
system
10.3 Protective devices
10.4 Disconnect devices
10.5 Earth system
10.6 Lightning protection
10.7 Electrical cables
10.8 Self-excitation
10.9 Over-voltage protection
10.10 Harmonics and power conditioning equipment
11 Assessment of external conditions
11.1 General
11.2 Assessment of wind conditions
11.3 Assessment of other environmental conditions
11.4 Assessment of electrical network conditions
11.5 Assessment of soil conditions
12 Assembly, installation and erection
12.1 General
12.2 Planning
12.3 Installation conditions
12.4 Site access
12.5 Environmental conditions
12.6 Documentation
12.7 Receiving, handling and storage
12.8 Foundation/anchor systems
12.9 Assembly of WTGS
12.10 Erection of WTGS
12.11 Fasteners and attachments
12.12 Cranes, hoists and lifting equipment
3 Commissioning, operation and maintenance
13.1 General
13.2 Commissioning
13.3 Operations
13.4 Inspection and maintenance
Annex A (normative) Design parameters for describing
WTGS class S
Annex B (normative) Stochastic turbulence models
Annex ZA (normative) Normative references to international
publications with their corresponding European publications
Bibliography