BS EN IEC 61400-5:2020
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Wind energy generation systems – Wind turbine blades
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 70 |
IEC 61400-5:2020 specifies requirements to ensure the engineering integrity of wind turbine blades as well as an appropriate level of operational safety throughout the design lifetime. It includes requirements for:
- aerodynamic and structural design,
- material selection, evaluation and testing,
- manufacture (including associated quality management),
- transportation, installation, operation and maintenance of the blades.
The purpose of this document is to provide a technical reference for designers, manufacturers, purchasers, operators, third party organizations and material suppliers, as well as to define requirements for certification.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 5 | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications |
| 7 | English CONTENTS |
| 9 | FOREWORD |
| 11 | INTRODUCTION |
| 12 | 1 Scope 2 Normative references |
| 13 | 3 Terms and definitions |
| 15 | 4 Notation 4.1 Symbols |
| 16 | 4.2 Greek symbols 4.3 Subscripts 4.4 Coordinate systems Figures Figure 1 – Chordwise (flatwise, edgewise) coordinate system |
| 17 | 5 Design environmental conditions Figure 2 – Rotor (flapwise, lead-lag) coordinate system |
| 18 | 6 Design 6.1 Structural design process 6.1.1 General requirements 6.1.2 Building block approach for composite structural design Figure 3 – The building block approach |
| 19 | 6.1.3 General blade design process |
| 20 | Figure 4 – Typical process for design and analytical evaluation of blade |
| 21 | Figure 5 – Application of limit states design approach for blade verification |
| 22 | 6.1.4 Design loads |
| 23 | 6.2 Blade characteristics 6.2.1 Blade properties 6.2.2 Functional design tolerances |
| 24 | 6.3 Aerodynamic design 6.3.1 General 6.3.2 Aerodynamic characteristics |
| 25 | 6.3.3 Power performance characterisation (informative) 6.3.4 Airfoil noise (informative) 6.4 Material requirements 6.4.1 General 6.4.2 Material properties for blade design |
| 29 | 6.4.3 Qualification of materials for manufacture |
| 30 | 6.5 Design for manufacturing 6.5.1 General 6.5.2 Requirement for manufacturing tolerances |
| 31 | 6.6 Structural design 6.6.1 General design approach |
| 32 | 6.6.2 Structural analysis |
| 34 | 6.6.3 Verification requirements |
| 35 | 6.6.4 Partial safety factors for materials |
| 38 | Table 1 – Typical manufacturing effects |
| 39 | 6.6.5 Structural design verification |
| 52 | 6.6.6 Additional failure modes |
| 53 | 7 Manufacturing requirements 7.1 Manufacturing process 7.2 Workshop requirements 7.2.1 General |
| 54 | 7.2.2 Workshop facilities 7.2.3 Material handling and storage facilities |
| 55 | 7.2.4 Tools and equipment |
| 56 | 7.2.5 Personnel |
| 57 | 7.3 Quality management system requirements 7.4 Manufacturing process requirements 7.4.1 General manufacturing requirements 7.4.2 Gelcoat application to the mould |
| 58 | 7.4.3 Building up the laminate |
| 59 | 7.4.4 Adhesive bonding process |
| 60 | 7.4.5 Curing 7.4.6 Demoulding 7.4.7 Trimming, cutting, and grinding |
| 61 | 7.4.8 Surface finish 7.4.9 Sealing 7.4.10 Additional component assembly processes |
| 62 | 7.4.11 Mass and balance 7.4.12 Manufacturing and assembly processes outside controlled environment 7.5 Manufacture of natural fiber-reinforced rotor blades |
| 63 | 7.6 Other manufacturing processes 7.7 Quality control process 7.7.1 Manufacturing quality plan 7.7.2 Incoming inspection 7.7.3 Manufacturing and quality control records |
| 64 | 7.7.4 Non-conformity process 7.7.5 In manufacture corrective action processes |
| 65 | 7.7.6 Final manufacturing inspection and conformity review 7.7.7 Documentation |
| 66 | 7.8 Requirements for manufacturing evaluation |
| 67 | 8 Blade Installation, operation and maintenance 8.1 General 8.2 Transportation, handling and installation |
| 68 | 8.3 Maintenance 8.3.1 General 8.3.2 Scheduled inspections |
