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BS EN 61400-3:2009

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Wind turbines Design requirements for offshore wind turbines
Superseded date

08-05-2021

Published date

31-05-2009

INTRODUCTION
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 Rotor - nacelle assembly markings
6 External conditions
   6.1 General
   6.2 Wind turbine classes
   6.3 Wind conditions
   6.4 Marine conditions
   6.5 Other environmental conditions
   6.6 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 and load effect calculations
   7.6 Ultimate limit state analysis
8 Control and protection system
9 Mechanical systems
10 Electrical system
11 Foundation design
12 Assessment of the external conditions at an offshore
   wind turbine site
   12.1 General
   12.2 The metocean database
   12.3 Assessment of wind conditions
   12.4 Assessment of waves
   12.5 Assessment of currents
   12.6 Assessment of water level, tides and storm surges
   12.7 Assessment of sea ice
   12.8 Assessment of marine growth
   12.9 Assessment of seabed movement and scour
   12.10 Assessment of wake effects from neighbouring wind
         turbines
   12.11 Assessment of other environmental conditions
   12.12 Assessment of earthquake conditions
   12.13 Assessment of weather windows and weather downtime
   12.14 Assessment of electrical network conditions
   12.15 Assessment of soil conditions
13 Assembly, installation and erection
   13.1 General
   13.2 Planning
   13.3 Installation conditions
   13.4 Site access
   13.5 Environmental conditions
   13.6 Documentation
   13.7 Receiving, handling and storage
   13.8 Foundation/anchor systems
   13.9 Assembly of offshore wind turbine
   13.10 Erection of offshore wind turbine
   13.11 Fasteners and attachments
   13.12 Cranes, hoists and lifting equipment
14 Commissioning, operation and maintenance
   14.1 General
   14.2 Design requirements for safe operation, inspection
         and maintenance
   14.3 Instructions concerning commissioning
   14.4 Operator's instruction manual
   14.5 Maintenance manual
Annex A (informative) - Key design parameters for an offshore
        wind turbine
Annex B (informative) - Wave spectrum formulations
Annex C (informative) - Shallow water hydrodynamics and breaking
        waves
Annex D (informative) - Guidance on calculation of hydrodynamic
        loads
Annex E (informative) - Recommendations for design of offshore
        wind turbine support structures with respect to ice loads
Annex F (informative) - Offshore wind turbine foundation design
Annex G (informative) - Statistical extrapolation of operational
        metocean parameters for ultimate strength analysis
Annex H (informative) - Corrosion protection
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Describes additional requirements for assessment of the external conditions at an offshore wind turbine site and it specifies essential design requirements to ensure the engineering integrity of offshore wind turbines.

IEC 61400-3:2009 specifies additional requirements for assessment of the external conditions at an offshore wind turbine site and specifies essential design requirements to ensure the engineering integrity of offshore wind turbines. Its purpose is to provide an appropriate level of protection against damage from all hazards during the planned lifetime. Focuses on the engineering integrity of the structural components of an offshore wind turbine but is also concerned with subsystems such as control and protection mechanisms, internal electrical systems and mechanical systems. It should be used together with the appropriate IEC and ISO standards, in particular with IEC 61400-1.

This publication is to be read in conjunction with IEC 61400-1:2005.

This publication is of high relevance for Smart Grid.

Committee
PEL/88/-/3
DevelopmentNote
Supersedes 06/30144803 DC. (06/2009)
DocumentType
Standard
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
EN 61400-3:2009 Identical
IEC 61400-3:2009 Identical

IEC 60038:2009 IEC standard voltages
IEC 61000-6-4:2006+AMD1:2010 CSV ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-4: GENERIC STANDARDS - EMISSION STANDARD FOR INDUSTRIAL ENVIRONMENTS
EN ISO 19901-1:2015 Petroleum and natural gas industries - Specific requirements for offshore structures - Part 1: Metocean design and operating considerations (ISO 19901-1:2015)
ISO 19900:2013 Petroleum and natural gas industries General requirements for offshore structures
IEC 60898:1995 Electrical accessories - Circuit-breakers for overcurrent protection for household and similar installations
ISO 3010:2017 Bases for design of structures — Seismic actions on structures
IEC TR 61400-24:2002 Wind turbine generator systems - Part 24: Lightning protection
IEC 61310-2:2007 Safety of machinery - Indication, marking and actuation - Part 2: Requirements for marking
EN ISO 19902:2007/A1:2013 PETROLEUM AND NATURAL GAS INDUSTRIES - FIXED STEEL OFFSHORE STRUCTURES (ISO 19902:2007/AMD 1:2013)
EN 62305-4:2011/AC:2016 PROTECTION AGAINST LIGHTNING - PART 4: ELECTRICAL AND ELECTRONIC SYSTEMS WITHIN STRUCTURES (IEC 62305-4:2010)
EN ISO 19901-4:2016 Petroleum and natural gas industries - Specific requirements for offshore structures - Part 4: Geotechnical and foundation design considerations (ISO 19901-4:2016)
IEC 61000-6-2:2016 Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity standard for industrial environments
API 2N : 2015 PLANNING, DESIGNING, AND CONSTRUCTING STRUCTURES AND PIPELINES FOR ARCTIC CONDITIONS
ISO 4354:2009 Wind actions on structures
IEC 60204-1:2016 Safety of machinery - Electrical equipment of machines - Part 1: General requirements
ISO 2394:2015 General principles on reliability for structures
IEC 61000-6-1 : 3.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-1: GENERIC STANDARDS - IMMUNITY STANDARD FOR RESIDENTIAL, COMMERCIAL AND LIGHT-INDUSTRIAL ENVIRONMENTS
IEC 60204-11:2000 Safety of machinery - Electrical equipment of machines - Part 11: Requirements for HV equipment for voltages above 1 000 V a.c. or 1 500 V d.c. and not exceeding 36 kV
IEC TS 61400-13:2001 Wind turbine generator systems - Part 13: Measurement of mechanical loads
ISO 2533:1975 Standard Atmosphere
ISO 19903:2006 Petroleum and natural gas industries Fixed concrete offshore structures
NACE RP 01 76 : 2003 CORROSION CONTROL OF STEEL FIXED OFFSHORE STRUCTURES ASSOCIATED WITH PETROLEUM PRODUCTION
HD 478.2.1 : 200S1 CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - ENVIRONMENTAL CONDITIONS APPEARING IN NATURE - TEMPERATURE AND HUMIDITY
API 2A : 1986 RECOMMENDED PRACTICE FOR PLANNING, DESIGNING AND CONSTRUCTING FIXED OFFSHORE PLATFORMS
EN 61400-1:2005/A1:2010 WIND TURBINES - PART 1: DESIGN REQUIREMENTS
ISO 19901-4:2016 Petroleum and natural gas industries Specific requirements for offshore structures Part 4: Geotechnical and foundation design considerations
ISO 13819-2:1995 Petroleum and natural gas industries Offshore structures Part 2: Fixed steel structures
IEC 60721-2-1:2013 Classification of environmental conditions - Part 2-1: Environmental conditions appearing in nature - Temperature and humidity
EN ISO 19903:2006 Petroleum and natural gas industries - Fixed concrete offshore structures (ISO 19903:2006)
EN 62305-3:2011 Protection against lightning - Part 3: Physical damage to structures and life hazard
ISO 19902:2007 Petroleum and natural gas industries Fixed steel offshore structures
EN ISO 9001:2015 Quality management systems - Requirements (ISO 9001:2015)
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
IEC 60755:2017 General safety requirements for residual current operated protective devices
IEC 61000-6-1:2016 Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity standard for residential, commercial and light-industrial environments
ISO 9001:2015 Quality management systems — Requirements
IEC 61000-6-4:2006+AMD1:2010 CSV Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission standard for industrial environments
ISO 8930:1987 General principles on reliability for structures List of equivalent terms
IEC 62305-4:2010 Protection against lightning - Part 4: Electrical and electronic systems within structures
IEC 61310-1:2007 Safety of machinery - Indication, marking and actuation - Part 1: Requirements for visual, acoustic and tactile signals
IEC 60173:1964 Colours of the cores of flexible cables and cords
ISO 19901-1:2015 Petroleum and natural gas industries Specific requirements for offshore structures Part 1: Metocean design and operating considerations
EN ISO 19900:2013 Petroleum and natural gas industries - General requirements for offshore structures (ISO 19900:2013)
IEC 61000-6-2 : 3.0:2016 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY STANDARD FOR INDUSTRIAL ENVIRONMENTS
IEC 61400-1:2005+AMD1:2010 CSV Wind turbines - Part 1: Design requirements
IEC 62305-3:2010 Protection against lightning - Part 3: Physical damage to structures and life hazard
IEC 61400-21:2008 Wind turbines - Part 21: Measurement and assessment of power quality characteristics of grid connected wind turbines

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