• NBN EN 61400-1 : 2006 AMD 1 2011

    Current The latest, up-to-date edition.


    Available format(s): 


    Published date:  12-01-2013

    Publisher:  Belgian Standards

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    Table of Contents - (Show below) - (Hide below)

    1 Scope
    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 Wind turbine 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 Control functions
       8.3 Protection functions
       8.4 Braking system
    9 Mechanical systems
       9.1 General
       9.2 Errors of fitting
       9.3 Hydraulic or pneumatic systems
       9.4 Main gearbox
       9.5 Yaw system
       9.6 Pitch system
       9.7 Protection function mechanical brakes
       9.8 Rolling bearings
    10 Electrical system
       10.1 General
       10.2 General requirements for the 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 Protection against lightning electromagnetic impulse
       10.10 Power quality
       10.11 Electromagnetic compatibility
    11 Assessment of a wind turbine for site-specific conditions
       11.1 General
       11.2 Assessment of the topographical complexity of the site
       11.3 Wind conditions required for assessment
       11.4 Assessment of wake effects from neighbouring wind
       11.5 Assessment of other environmental conditions
       11.6 Assessment of earthquake conditions
       11.7 Assessment of electrical network conditions
       11.8 Assessment of soil conditions
       11.9 Assessment of structural integrity by reference to
             wind data
       11.10 Assessment of structural integrity by load
             calculations with reference to site specific
    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 wind turbine
       12.10 Erection of wind turbine
       12.11 Fasteners and attachments
       12.12 Cranes, hoists and lifting equipment
    13 Commissioning, operation and maintenance
       13.1 General
       13.2 Design requirements for safe operation, inspection
             and maintenance
       13.3 Instructions concerning commissioning
       13.4 Operator's instruction manual
       13.5 Maintenance manual
    Annex A (normative) Design parameters for describing wind
             turbine class S
    Annex B (informative) Turbulence models
    Annex C (informative) Assessment of earthquake loading
    Annex D (informative) Wake and wind farm turbulence
    Annex E (informative) Prediction of wind distribution for
             wind turbine sites by measure-correlate-predict (MCP)
    Annex F (informative) Statistical extrapolation of loads for
             ultimate strength analysis
    Annex G (informative) Fatigue analysis using Miner's rule
             with load extrapolation
    Annex ZA (normative) Normative references to international
             publications with their corresponding European

    Abstract - (Show below) - (Hide below)

    Specifies essential design requirements to ensure the engineering integrity of wind turbines. Provides an appropriate level of protection against damage from all hazards during the planned lifetime.

    General Product Information - (Show below) - (Hide below)

    Development Note Supersedes NBN ENV 61400-1. (07/2005)
    Document Type Standard
    Publisher Belgian Standards
    Status Current
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