International Electrotechnical Commission
Glossary

Terms defined by TC 88


Hide details for A-weighted sound pressure levels, [<i>L</i><sub>A</sub>]A-weighted sound pressure levels, LA
IEC 61400-11, ed. 3.0 (2012)
Hide details for accreditationaccreditation
IEC 61400-22, ed. 1.0 (2010)
Hide details for accuracyaccuracy
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>accuracy</span>]accuracy
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for actoractor
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for actual energy productionactual energy production
IEC 61400-26-2, ed. 1.0 (2014)
Hide details for [<span>actuator</span>]actuator
IEC 61400-23, ed. 1.0 (2014)
Hide details for air-termination systemair-termination system
IEC 61400-24, ed. 1.0 (2010)
Hide details for alarmalarm
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for annual averageannual average
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>annual average</span>]annual average
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>annual average wind speed</span>]annual average wind speed
IEC 61400-2, ed. 3.0 (2013)
Hide details for annual average wind speed, [<i>V</i><sub>ave</sub>]annual average wind speed, Vave
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>annual energy production (AEP)</span>]annual energy production (AEP)
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for [<span>annual energy production ‒ measured (AEP ‒ measured)</span>]annual energy production ‒ measured (AEP ‒ measured)
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for [<span>annual energy production ‒ extrapolated (AEP ‒ extrapolated)</span>]annual energy production ‒ extrapolated (AEP ‒ extrapolated)
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for annual energy production; AEPannual energy production; AEP
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for apparent sound power level with reference to wind speed at 10 m height, [<i>L</i><sub>WA,10m</sub>]apparent sound power level with reference to wind speed at 10 m height, LWA,10m
IEC 61400-11, ed. 3.0 (2012)
Hide details for apparent sound power level, [<i>L</i><sub>WA</sub>]apparent sound power level, LWA
IEC 61400-11, ed. 3.0 (2012)
Hide details for applicantapplicant
IEC 61400-22, ed. 1.0 (2010)
Hide details for audibility criterion, [<i>L</i><sub>a</sub>]audibility criterion, La
IEC 61400-11, ed. 3.0 (2012)
Hide details for auto-reclosing cycleauto-reclosing cycle
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>auto-reclosing cycles</span>]auto-reclosing cycles
IEC 61400-2, ed. 3.0 (2013)
Hide details for availabilityavailability
IEC 61400-26-1, ed. 1.0 (2011)
Hide details for [<span>available aerodynamic power</span>]available aerodynamic power
IEC 61400-27, ed. 1.0 (2015)
Hide details for average steepness of the front of short stroke currentaverage steepness of the front of short stroke current
IEC 61400-24, ed. 1.0 (2010)
Hide details for band pass, BPband pass, BP
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for batchbatch
IEC 61400-14, ed. 1.0 (2005)
Hide details for bearing manufacturerbearing manufacturer
IEC 61400-4, ed. 1.0 (2012)
Hide details for bearing position designationsbearing position designations
IEC 61400-4, ed. 1.0 (2012)
Hide details for bin centrebin centre
IEC 61400-11, ed. 3.0 (2012)
Hide details for [<span>blade root</span>]blade root
IEC 61400-23, ed. 1.0 (2014)
Hide details for [<span>blade subsystem</span>]blade subsystem
IEC 61400-23, ed. 1.0 (2014)
Hide details for blocking (wind turbines)blocking (wind turbines)
IEC 61400-1, ed. 3.0 (2005)
Hide details for bonding barbonding bar
IEC 61400-24, ed. 1.0 (2010)
Hide details for [<span>brake</span>]brake
IEC 61400-2, ed. 3.0 (2013)
Hide details for brake (wind turbines)brake (wind turbines)
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>buckling</span>]buckling
IEC 61400-23, ed. 1.0 (2014)
Hide details for C-weighted sound pressure levels, [<i>L</i><sub>C</sub>]C-weighted sound pressure levels, LC
IEC 61400-11, ed. 3.0 (2012)
Hide details for [<span>catastrophic failure</span>]catastrophic failure
IEC 61400-2, ed. 3.0 (2013)
Hide details for certificate holdercertificate holder
IEC 61400-22, ed. 1.0 (2010)
Hide details for certificationcertification
IEC 61400-22, ed. 1.0 (2010)
Hide details for certification bodycertification body
IEC 61400-22, ed. 1.0 (2010)
IEC 61400-4, ed. 1.0 (2012)
Hide details for certification systemcertification system
IEC 61400-22, ed. 1.0 (2010)
Hide details for characteristic loadcharacteristic load
IEC 61400-4, ed. 1.0 (2012)
Hide details for characteristic valuecharacteristic value
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>characteristic value</span>]characteristic value
IEC 61400-2, ed. 3.0 (2013)
Hide details for characteristic valuescharacteristic values
IEC 61400-25-1, ed. 1.0 (2006)
Hide details for [<span>chord</span>]chord
IEC 61400-23, ed. 1.0 (2014)
Hide details for co-directional (wind and waves)co-directional (wind and waves)
IEC 61400-3, ed. 1.0 (2009)
Hide details for collection area, [<i>A</i><sub>d</sub>]collection area, Ad
IEC 61400-24, ed. 1.0 (2010)
Hide details for commandcommand
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for commissioningcommissioning
IEC 61400-22, ed. 1.0 (2010)
Hide details for communication functioncommunication function
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for complex terraincomplex terrain
IEC 61400-12-1, ed. 1.0 (2005)
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>complex terrain</span>]complex terrain
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for conditionalconditional
IEC 61400-25-2, ed. 2.0 (2015)
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for conformity statementconformity statement
IEC 61400-22, ed. 1.0 (2010)
Hide details for connecting leaderconnecting leader
IEC 61400-24, ed. 1.0 (2010)
Hide details for [<span>constant amplitude loading</span>]constant amplitude loading
IEC 61400-23, ed. 1.0 (2014)
Hide details for [<span>consumer label</span>]consumer label
IEC 61400-2, ed. 3.0 (2013)
Hide details for continuous operation (for wind turbines)continuous operation (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for controlcontrol
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for control functions (wind turbines)control functions (wind turbines)
IEC 61400-1, ed. 3.0 (2005)
Hide details for control objectcontrol object
IEC 61400-25-3, ed. 2.0 (2015)
Hide details for [<span>control system</span>]control system
IEC 61400-2, ed. 3.0 (2013)
Hide details for conventional earthing impedanceconventional earthing impedance
IEC 61400-24, ed. 1.0 (2010)
Hide details for coordinated SPD protectioncoordinated SPD protection
IEC 61400-24, ed. 1.0 (2010)
Hide details for counting valuecounting value
IEC 61400-25-1, ed. 1.0 (2006)
Hide details for [<span>creep</span>]creep
IEC 61400-23, ed. 1.0 (2014)
Hide details for crest factorcrest factor
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for currentcurrent
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>cut-in wind speed</span>]cut-in wind speed
IEC 61400-2, ed. 3.0 (2013)
Hide details for cut-in wind speed (for wind turbines)cut-in wind speed (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for cut-in wind speed, [<i>V</i><sub>in</sub>]cut-in wind speed, Vin
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>cut-out wind speed</span>]cut-out wind speed
IEC 61400-2, ed. 3.0 (2013)
Hide details for cut-out wind speed, [<i>V</i><sub>out</sub>]cut-out wind speed, Vout
IEC 61400-1, ed. 3.0 (2005)
Hide details for data filedata file
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for data retrievaldata retrieval
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for data setdata set
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>data set</span>]data set
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for [<span>declared sound power level</span>]declared sound power level
IEC 61400-2, ed. 3.0 (2013)
Hide details for design lifetimedesign lifetime
IEC 61400-4, ed. 1.0 (2012)
Hide details for [<span>design limit</span>]design limit
IEC 61400-2, ed. 3.0 (2013)
Hide details for design limitsdesign limits
IEC 61400-1, ed. 3.0 (2005)
Hide details for design loaddesign load
IEC 61400-4, ed. 1.0 (2012)
Hide details for [<span>design loads</span>]design loads
IEC 61400-23, ed. 1.0 (2014)
Hide details for [<span>design situation</span>]design situation
IEC 61400-2, ed. 3.0 (2013)
Hide details for design specificationsdesign specifications
IEC 61400-26-1, ed. 1.0 (2011)
Hide details for design wavedesign wave
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>design wind speed</span>]design wind speed
IEC 61400-2, ed. 3.0 (2013)
Hide details for designerdesigner
IEC 61400-3, ed. 1.0 (2009)
Hide details for diagnosticsdiagnostics
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for distance constantdistance constant
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>documentation</span>]documentation
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for dormant failuredormant failure
IEC 61400-1, ed. 3.0 (2005)
Hide details for double-row bearingsdouble-row bearings
IEC 61400-4, ed. 1.0 (2012)
Hide details for down-conductor systemdown-conductor system
IEC 61400-24, ed. 1.0 (2010)
Hide details for downward flashdownward flash
IEC 61400-24, ed. 1.0 (2010)
Hide details for downwinddownwind
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>downwind</span>]downwind
IEC 61400-2, ed. 3.0 (2013)
Hide details for earth-termination systemearth-termination system
IEC 61400-24, ed. 1.0 (2010)
Hide details for earth electrodeearth electrode
IEC 61400-24, ed. 1.0 (2010)
Hide details for [<span>edgewise</span>]edgewise
IEC 61400-23, ed. 1.0 (2014)
Hide details for effective height, [<i>H</i>]effective height, H
IEC 61400-24, ed. 1.0 (2010)
Hide details for [<span>elastic axis</span>]elastic axis
IEC 61400-23, ed. 1.0 (2014)
Hide details for electrical power networkelectrical power network
IEC 61400-1, ed. 3.0 (2005)
Hide details for electrical systemelectrical system
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for [<span>emergency shutdown</span>]emergency shutdown
IEC 61400-2, ed. 3.0 (2013)
Hide details for emergency shutdown (wind turbines)emergency shutdown (wind turbines)
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>environmental condition</span>]environmental condition
IEC 61400-2, ed. 3.0 (2013)
Hide details for environmental conditionsenvironmental conditions
IEC 61400-1, ed. 3.0 (2005)
IEC 61400-3, ed. 1.0 (2009)
Hide details for equivalent loadequivalent load
IEC 61400-4, ed. 1.0 (2012)
Hide details for evaluation for conformityevaluation for conformity
IEC 61400-22, ed. 1.0 (2010)
Hide details for eventevent
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for [<span>external condition</span>]external condition
IEC 61400-2, ed. 3.0 (2013)
Hide details for external conditionsexternal conditions
IEC 61400-26-1, ed. 1.0 (2011)
Hide details for external conditions (wind turbines)external conditions (wind turbines)
IEC 61400-1, ed. 3.0 (2005)
IEC 61400-3, ed. 1.0 (2009)
Hide details for external lightning protection systemexternal lightning protection system
IEC 61400-24, ed. 1.0 (2010)
Hide details for extrapolated power curveextrapolated power curve
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>extrapolated power curve</span>]extrapolated power curve
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for extreme loadextreme load
IEC 61400-4, ed. 1.0 (2012)
Hide details for extreme significant wave heightextreme significant wave height
IEC 61400-3, ed. 1.0 (2009)
Hide details for extreme wave heightextreme wave height
IEC 61400-3, ed. 1.0 (2009)
Hide details for extreme wind speedextreme wind speed
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>extreme wind speed</span>]extreme wind speed
IEC 61400-2, ed. 3.0 (2013)
Hide details for Factory Acceptance Test, FATFactory Acceptance Test, FAT
IEC 61400-25-5, ed. 1.0 (2006)
Hide details for fail-safefail-safe
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>fail-safe</span>]fail-safe
IEC 61400-2, ed. 3.0 (2013)
Hide details for fast ice coverfast ice cover
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>fatigue formulation</span>]fatigue formulation
IEC 61400-23, ed. 1.0 (2014)
Hide details for [<span>fatigue test</span>]fatigue test
IEC 61400-23, ed. 1.0 (2014)
Hide details for fetchfetch
IEC 61400-3, ed. 1.0 (2009)
Hide details for final evaluation reportfinal evaluation report
IEC 61400-22, ed. 1.0 (2010)
Hide details for [<span>fixture</span>]fixture
IEC 61400-23, ed. 1.0 (2014)
Hide details for [<span>flapwise</span>]flapwise
IEC 61400-23, ed. 1.0 (2014)
Hide details for flash charge, [<i>Q</i><sub>flash</sub>]flash charge, Qflash
IEC 61400-24, ed. 1.0 (2010)
Hide details for [<span>flatwise</span>]flatwise
IEC 61400-23, ed. 1.0 (2014)
Hide details for flicker coefficient for continuous operation (for wind turbines)flicker coefficient for continuous operation (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for flicker step factor (for wind turbines)flicker step factor (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for flow distortionflow distortion
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>flow distortion</span>]flow distortion
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for foundationfoundation
IEC 61400-3, ed. 1.0 (2009)
Hide details for foundation earth electrodefoundation earth electrode
IEC 61400-24, ed. 1.0 (2010)
Hide details for [<span>free stream wind speed</span>]free stream wind speed
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for [<span>full-scale test</span>]full-scale test
IEC 61400-23, ed. 1.0 (2014)
Hide details for functionfunction
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for [<span>furling</span>]furling
IEC 61400-2, ed. 3.0 (2013)
Hide details for gearbox manufacturergearbox manufacturer
IEC 61400-4, ed. 1.0 (2012)
Hide details for [<span>generic model</span>]generic model
IEC 61400-27, ed. 1.0 (2015)
Hide details for ground flash density, [<i>N</i><sub>g</sub>]ground flash density, Ng
IEC 61400-24, ed. 1.0 (2010)
Hide details for gustgust
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>gust</span>]gust
IEC 61400-2, ed. 3.0 (2013)
Hide details for high frequency band pass, HFBPhigh frequency band pass, HFBP
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for highest astronomical tidehighest astronomical tide
IEC 61400-3, ed. 1.0 (2009)
Hide details for hindcastinghindcasting
IEC 61400-3, ed. 1.0 (2009)
Hide details for horizontal axis wind turbinehorizontal axis wind turbine
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>horizontal axis wind turbine</span>]horizontal axis wind turbine
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>hub</span>]hub
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>hub height</span>]hub height
IEC 61400-2, ed. 3.0 (2013)
Hide details for hub height (wind turbines)hub height (wind turbines)
IEC 61400-12-1, ed. 1.0 (2005)
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>hub height (wind turbines)</span>]hub height (wind turbines)
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for hub height (wind turbines), [<i>z</i><sub>hub</sub>]hub height (wind turbines), zhub
IEC 61400-1, ed. 3.0 (2005)
Hide details for hub (wind turbines)hub (wind turbines)
IEC 61400-1, ed. 3.0 (2005)
Hide details for hummocked icehummocked ice
IEC 61400-3, ed. 1.0 (2009)
Hide details for ice floeice floe
IEC 61400-3, ed. 1.0 (2009)
Hide details for icingicing
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>idling</span>]idling
IEC 61400-2, ed. 3.0 (2013)
Hide details for idling (wind turbines)idling (wind turbines)
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>inboard</span>]inboard
IEC 61400-23, ed. 1.0 (2014)
Hide details for inclination angle, [<!--><i>&Phi;</i>]inclination angle, Φ
IEC 61400-11, ed. 3.0 (2012)
Hide details for inertial sub-rangeinertial sub-range
IEC 61400-1, ed. 3.0 (2005)
Hide details for informationinformation
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for information exchangeinformation exchange
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for information modelinformation model
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for inspectioninspection
IEC 61400-22, ed. 1.0 (2010)
Hide details for installationinstallation
IEC 61400-22, ed. 1.0 (2010)
Hide details for [<span>integration time step</span>]integration time step
IEC 61400-27, ed. 1.0 (2015)
Hide details for Intelligent Electronic Device, IEDIntelligent Electronic Device, IED
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for interception efficiencyinterception efficiency
IEC 61400-24, ed. 1.0 (2010)
Hide details for interfaceinterface
IEC 61400-4, ed. 1.0 (2012)
Hide details for internal lightning protection systeminternal lightning protection system
IEC 61400-24, ed. 1.0 (2010)
Hide details for interoperabilityinteroperability
IEC 61400-25-5, ed. 1.0 (2006)
Hide details for land-locked watersland-locked waters
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>lead-lag</span>]lead-lag
IEC 61400-23, ed. 1.0 (2014)
Hide details for leader connection pointleader connection point
IEC 61400-24, ed. 1.0 (2010)
Hide details for LEMP protection measures system, LPMSLEMP protection measures system, LPMS
IEC 61400-24, ed. 1.0 (2010)
Hide details for lightning current, [<i>i</i>]lightning current, i
IEC 61400-24, ed. 1.0 (2010)
Hide details for lightning electromagnetic impulse, LEMPlightning electromagnetic impulse, LEMP
IEC 61400-24, ed. 1.0 (2010)
Hide details for lightning equipotential bondinglightning equipotential bonding
IEC 61400-24, ed. 1.0 (2010)
Hide details for lightning flash to a structurelightning flash to a structure
IEC 61400-24, ed. 1.0 (2010)
Hide details for lightning flash to earthlightning flash to earth
IEC 61400-24, ed. 1.0 (2010)
Hide details for lightning protection level, LPLlightning protection level, LPL
IEC 61400-24, ed. 1.0 (2010)
Hide details for lightning protection system, LPSlightning protection system, LPS
IEC 61400-24, ed. 1.0 (2010)
Hide details for lightning protection zone, LPZlightning protection zone, LPZ
IEC 61400-24, ed. 1.0 (2010)
Hide details for lightning strokelightning stroke
IEC 61400-24, ed. 1.0 (2010)
Hide details for limit statelimit state
IEC 61400-1, ed. 3.0, amd. 1 (2014)
Hide details for [<span>limit state</span>]limit state
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>load case</span>]load case
IEC 61400-2, ed. 3.0 (2013)
Hide details for load effectload effect
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>load envelope</span>]load envelope
IEC 61400-23, ed. 1.0 (2014)
Hide details for load reserve factor, [<i>LRF</i>]load reserve factor, LRF
IEC 61400-4, ed. 1.0 (2012)
Hide details for local failurelocal failure
IEC 61400-4, ed. 1.0 (2012)
Hide details for locating bearing; fixed bearinglocating bearing; fixed bearing
IEC 61400-4, ed. 1.0 (2012)
Hide details for loglog
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for logarithmic wind shear lawlogarithmic wind shear law
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>logarithmic wind shear law</span>]logarithmic wind shear law
IEC 61400-2, ed. 3.0 (2013)
Hide details for logginglogging
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for logical devicelogical device
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for long strokelong stroke
IEC 61400-24, ed. 1.0 (2010)
Hide details for lost productionlost production
IEC 61400-26-2, ed. 1.0 (2014)
Hide details for lowest astronomical tidelowest astronomical tide
IEC 61400-3, ed. 1.0 (2009)
Hide details for lubricant supplierlubricant supplier
IEC 61400-4, ed. 1.0 (2012)
Hide details for [<span>machine configuration change</span>]machine configuration change
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for magnetic shieldmagnetic shield
IEC 61400-24, ed. 1.0 (2010)
Hide details for management functionmanagement function
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for mandatorymandatory
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-2, ed. 2.0 (2015)
IEC 61400-25-4, ed. 1.0 (2008)
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for manufacturemanufacture
IEC 61400-22, ed. 1.0 (2010)
Hide details for manufacturermanufacturer
IEC 61400-22, ed. 1.0 (2010)
IEC 61400-3, ed. 1.0 (2009)
Hide details for marine conditionsmarine conditions
IEC 61400-3, ed. 1.0 (2009)
Hide details for marine growthmarine growth
IEC 61400-3, ed. 1.0 (2009)
Hide details for maximum measured power (for wind turbines)maximum measured power (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for maximum operating loadmaximum operating load
IEC 61400-4, ed. 1.0 (2012)
Hide details for [<span>maximum output current</span>]maximum output current
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>maximum output power</span>]maximum output power
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>maximum output voltage</span>]maximum output voltage
IEC 61400-2, ed. 3.0 (2013)
Hide details for maximum powermaximum power
IEC 61400-11, ed. 3.0 (2012)
Hide details for mean sea levelmean sea level
IEC 61400-3, ed. 1.0 (2009)
Hide details for mean wind speedmean wind speed
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>mean wind speed</span>]mean wind speed
IEC 61400-2, ed. 3.0 (2013)
Hide details for mean zero crossing periodmean zero crossing period
IEC 61400-3, ed. 1.0 (2009)
Hide details for measured datameasured data
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for measured nacelle wind speed at hub height, [<i>V</i><sub>nac,m</sub>]measured nacelle wind speed at hub height, Vnac,m
IEC 61400-11, ed. 3.0 (2012)
Hide details for measured power curvemeasured power curve
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>measured power curve</span>]measured power curve
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for measured wind speed at height [<i>Z</i>], [<i>V</i><sub>Z,m</sub>]measured wind speed at height Z, VZ,m
IEC 61400-11, ed. 3.0 (2012)
Hide details for measurement periodmeasurement period
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>measurement period</span>]measurement period
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for measurement sectormeasurement sector
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>measurement sector</span>]measurement sector
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for [<span>measurement uncertainty</span>]measurement uncertainty
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for metal installationsmetal installations
IEC 61400-24, ed. 1.0 (2010)
Hide details for meteorological systemmeteorological system
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for method of binsmethod of bins
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>method of bins</span>]method of bins
IEC 61400-12-2, ed. 1.0 (2013)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-25-5, ed. 1.0 (2006)
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IEC 61400-22, ed. 1.0 (2010)
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IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for multi-directional (wind and/or wave)multi-directional (wind and/or wave)
IEC 61400-3, ed. 1.0 (2009)
Hide details for multiple strokesmultiple strokes
IEC 61400-24, ed. 1.0 (2010)
Hide details for nacellenacelle
IEC 61400-1, ed. 3.0 (2005)
IEC 61400-4, ed. 1.0 (2012)
Hide details for [<span>nacelle</span>]nacelle
IEC 61400-12-2, ed. 1.0 (2013)
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>nacelle power curve (NPC)</span>]nacelle power curve (NPC)
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for [<span>nacelle wind speed</span>]nacelle wind speed
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for natural component of LPSnatural component of LPS
IEC 61400-24, ed. 1.0 (2010)
Hide details for [<span>natural frequency</span>]natural frequency
IEC 61400-23, ed. 1.0 (2014)
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IEC 61400-27, ed. 1.0 (2015)
Hide details for negative testnegative test
IEC 61400-25-5, ed. 1.0 (2006)
Hide details for net active electric powernet active electric power
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>net active electric power</span>]net active electric power
IEC 61400-12-2, ed. 1.0 (2013)
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IEC 61400-1, ed. 3.0 (2005)
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IEC 61400-21, ed. 2.0 (2008)
Hide details for network lossnetwork loss
IEC 61400-1, ed. 3.0 (2005)
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IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>nominal active power</span>]nominal active power
IEC 61400-27, ed. 1.0 (2015)
Hide details for [<span>nominal current</span>]nominal current
IEC 61400-27, ed. 1.0 (2015)
Hide details for [<span>nominal frequency</span>]nominal frequency
IEC 61400-27, ed. 1.0 (2015)
Hide details for [<span>nominal voltage</span>]nominal voltage
IEC 61400-27, ed. 1.0 (2015)
Hide details for non-locating bearing, floating bearingnon-locating bearing, floating bearing
IEC 61400-4, ed. 1.0 (2012)
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IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>normal maintenance</span>]normal maintenance
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for [<span>normal operation</span>]normal operation
IEC 61400-2, ed. 3.0 (2013)
Hide details for normal operation (for wind turbines)normal operation (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
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IEC 61400-2, ed. 3.0 (2013)
Hide details for normal shutdown (wind turbines)normal shutdown (wind turbines)
IEC 61400-1, ed. 3.0 (2005)
Hide details for normalised nacelle wind speed at hub height, [<i>V</i><sub>nac,n</sub>]normalised nacelle wind speed at hub height, Vnac,n
IEC 61400-11, ed. 3.0 (2012)
Hide details for normalised wind speed at height [<i>Z</i>], [<i>V</i><sub>Z,n</sub>]normalised wind speed at height Z, VZ,n
IEC 61400-11, ed. 3.0 (2012)
Hide details for normalised wind speed at hub height during background noise measurements, [<i>V</i><sub>B,n</sub>]normalised wind speed at hub height during background noise measurements, VB,n
IEC 61400-11, ed. 3.0 (2012)
Hide details for normalised wind speed at hub height, [<i>V</i><sub>H,n</sub>]normalised wind speed at hub height, VH,n
IEC 61400-11, ed. 3.0 (2012)
Hide details for normalised wind speed derived from power curve, [<i>V</i><sub>P,n</sub>]normalised wind speed derived from power curve, VP,n
IEC 61400-11, ed. 3.0 (2012)
Hide details for number of dangerous events due to flashes to a structure, [<i>N</i><sub>d</sub>]number of dangerous events due to flashes to a structure, Nd
IEC 61400-24, ed. 1.0 (2010)
Hide details for obstaclesobstacles
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>obstacles</span>]obstacles
IEC 61400-12-2, ed. 1.0 (2013)
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IEC 61400-3, ed. 1.0 (2009)
Hide details for offshore wind turbine siteoffshore wind turbine site
IEC 61400-3, ed. 1.0 (2009)
Hide details for operating bodyoperating body
IEC 61400-22, ed. 1.0 (2010)
Hide details for operating limitsoperating limits
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>operating limits</span>]operating limits
IEC 61400-2, ed. 3.0 (2013)
Hide details for operational functionoperational function
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for operational mode (for wind turbines)operational mode (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for optionaloptional
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-2, ed. 2.0 (2015)
IEC 61400-25-4, ed. 1.0 (2008)
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for orderorder
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for order analysisorder analysis
IEC 61400-25-6, ed. 1.0 (2010)
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IEC 61400-21, ed. 2.0 (2008)
Hide details for [<span>overspeed control</span>]overspeed control
IEC 61400-2, ed. 3.0 (2013)
Hide details for paired bearingspaired bearings
IEC 61400-4, ed. 1.0 (2012)
Hide details for parameterparameter
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for parked wind turbineparked wind turbine
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>parked wind turbine</span>]parked wind turbine
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>parking</span>]parking
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>partial safety factors</span>]partial safety factors
IEC 61400-23, ed. 1.0 (2014)
Hide details for peak-to-peak valuepeak-to-peak value
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for peak valuepeak value
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for peak value, [<i>I</i>]peak value, I
IEC 61400-24, ed. 1.0 (2010)
Hide details for permanent storagepermanent storage
IEC 61400-26-1, ed. 1.0 (2011)
Hide details for [<span>phasor</span>]phasor
IEC 61400-27, ed. 1.0 (2015)
Hide details for pile penetrationpile penetration
IEC 61400-3, ed. 1.0 (2009)
Hide details for pitch anglepitch angle
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>pitch angle</span>]pitch angle
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for point of common coupling, PCCpoint of common coupling, PCC
IEC 61400-21, ed. 2.0 (2008)
Hide details for [<span>point of connection</span>]point of connection
IEC 61400-27, ed. 1.0 (2015)
Hide details for point of strikepoint of strike
IEC 61400-24, ed. 1.0 (2010)
Hide details for [<span>positive (sequence) component (of a three-phase system)</span>]positive (sequence) component (of a three-phase system)
IEC 61400-27, ed. 1.0 (2015)
Hide details for potential energy productionpotential energy production
IEC 61400-26-2, ed. 1.0 (2014)
Hide details for power coefficientpower coefficient
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>power coefficient</span>]power coefficient
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for power collection system (for wind turbines)power collection system (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for power collection system (wind turbines)power collection system (wind turbines)
IEC 61400-1, ed. 3.0 (2005)
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>power form</span>]power form
IEC 61400-2, ed. 3.0 (2013)
Hide details for power law for wind shearpower law for wind shear
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>power law for wind shear</span>]power law for wind shear
IEC 61400-2, ed. 3.0 (2013)
Hide details for power outputpower output
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>power output</span>]power output
IEC 61400-2, ed. 3.0 (2013)
Hide details for power performancepower performance
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>power performance</span>]power performance
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for [<span>power system stability</span>]power system stability
IEC 61400-27, ed. 1.0 (2015)
Hide details for [<span>prebend</span>]prebend
IEC 61400-23, ed. 1.0 (2014)
Hide details for processed dataprocessed data
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for profile(s)profile(s)
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for project certificateproject certificate
IEC 61400-22, ed. 1.0 (2010)
Hide details for project certificationproject certification
IEC 61400-22, ed. 1.0 (2010)
Hide details for protection functions (wind turbine)protection functions (wind turbine)
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>protection system</span>]protection system
IEC 61400-2, ed. 3.0 (2013)
Hide details for Protocol Implementation Conformance Statement, PICSProtocol Implementation Conformance Statement, PICS
IEC 61400-25-5, ed. 1.0 (2006)
Hide details for Protocol Implementation Extra Information For Testing, PIXITProtocol Implementation Extra Information For Testing, PIXIT
IEC 61400-25-5, ed. 1.0 (2006)
Hide details for protocol stackprotocol stack
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for [<span>quasi steady state of a system</span>]quasi steady state of a system
IEC 61400-27, ed. 1.0 (2015)
Hide details for [<span>R-value</span>]R-value
IEC 61400-23, ed. 1.0 (2014)
Hide details for rainflow matricesrainflow matrices
IEC 61400-4, ed. 1.0 (2012)
Hide details for rated apparent power (for wind turbines)rated apparent power (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for [<span>rated current</span>]rated current
IEC 61400-2, ed. 3.0 (2013)
Hide details for rated current (for wind turbines)rated current (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for rated powerrated power
IEC 61400-12-1, ed. 1.0 (2005)
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>rated power</span>]rated power
IEC 61400-12-2, ed. 1.0 (2013)
IEC 61400-2, ed. 3.0 (2013)
Hide details for rated power (for wind turbines)rated power (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for [<span>rated wind speed</span>]rated wind speed
IEC 61400-2, ed. 3.0 (2013)
Hide details for rated wind speed (for wind turbines)rated wind speed (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for rated wind speed, [<i>V</i><sub>r</sub>]rated wind speed, Vr
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>Rayleigh distribution</span>]Rayleigh distribution
IEC 61400-2, ed. 3.0 (2013)
Hide details for Rayleigh distribution, [<i>P</i><sub>R</sub>]Rayleigh distribution, PR
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>reaction time</span>]reaction time
IEC 61400-27, ed. 1.0 (2015)
Hide details for receptorreceptor
IEC 61400-24, ed. 1.0 (2010)
Hide details for [<span>reduced speed</span>]reduced speed
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>reference annual energy</span>]reference annual energy
IEC 61400-2, ed. 3.0 (2013)
Hide details for reference distance, [<i>R</i><sub>0</sub>]reference distance, R0
IEC 61400-11, ed. 3.0 (2012)
Hide details for reference periodreference period
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>reference power</span>]reference power
IEC 61400-2, ed. 3.0 (2013)
Hide details for reference roughness length, [<i>z</i><sub>0ref</sub>]reference roughness length, z0ref
IEC 61400-11, ed. 3.0 (2012)
Hide details for [<span>reference wind speed</span>]reference wind speed
IEC 61400-2, ed. 3.0 (2013)
Hide details for reference wind speed, [<i>V</i><sub>ref</sub>]reference wind speed, Vref
IEC 61400-1, ed. 3.0 (2005)
Hide details for refractionrefraction
IEC 61400-3, ed. 1.0 (2009)
Hide details for reliabilityreliability
IEC 61400-26-1, ed. 1.0 (2011)
Hide details for repairrepair
IEC 61400-22, ed. 1.0 (2010)
IEC 61400-26-1, ed. 1.0 (2011)
Hide details for replacementreplacement
IEC 61400-22, ed. 1.0 (2010)
Hide details for reportreport
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for [<span>report</span>]report
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for reportingreporting
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for residual currentsresidual currents
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>resonance</span>]resonance
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>response time</span>]response time
IEC 61400-27, ed. 1.0 (2015)
Hide details for retrofitretrofit
IEC 61400-26-1, ed. 1.0 (2011)
Hide details for risk, [<i>R</i>]risk, R
IEC 61400-24, ed. 1.0 (2010)
Hide details for root mean square value, RMSroot mean square value, RMS
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for rotationally sampled wind velocityrotationally sampled wind velocity
IEC 61400-1, ed. 3.0 (2005)
Hide details for rotor – nacelle assemblyrotor – nacelle assembly
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>rotor centre</span>]rotor centre
IEC 61400-2, ed. 3.0 (2013)
Hide details for rotor nacelle assembly, RNArotor nacelle assembly, RNA
IEC 61400-22, ed. 1.0 (2010)
Hide details for [<span>rotor speed</span>]rotor speed
IEC 61400-2, ed. 3.0 (2013)
Hide details for rotor speed (wind turbines)rotor speed (wind turbines)
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>roughness length</span>]roughness length
IEC 61400-12-2, ed. 1.0 (2013)
IEC 61400-2, ed. 3.0 (2013)
Hide details for roughness length, [<i>z</i><sub>0</sub>]roughness length, z0
IEC 61400-1, ed. 3.0 (2005)
Hide details for routine testroutine test
IEC 61400-25-5, ed. 1.0 (2006)
Hide details for [<span>ruggedness index	</span>]ruggedness index
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for [<span>S-N formulation</span>]S-N formulation
IEC 61400-23, ed. 1.0 (2014)
Hide details for [<span>safe life</span>]safe life
IEC 61400-2, ed. 3.0 (2013)
Hide details for scalar valuescalar value
IEC 61400-25-6, ed. 1.0 (2010)
Hide details for scheduled maintenancescheduled maintenance
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>scheduled maintenance</span>]scheduled maintenance
IEC 61400-2, ed. 3.0 (2013)
Hide details for scourscour
IEC 61400-3, ed. 1.0 (2009)
Hide details for sea floorsea floor
IEC 61400-3, ed. 1.0 (2009)
Hide details for sea floor slopesea floor slope
IEC 61400-3, ed. 1.0 (2009)
Hide details for sea statesea state
IEC 61400-3, ed. 1.0 (2009)
Hide details for seabedseabed
IEC 61400-3, ed. 1.0 (2009)
Hide details for seabed movementseabed movement
IEC 61400-3, ed. 1.0 (2009)
Hide details for separation distanceseparation distance
IEC 61400-24, ed. 1.0 (2010)
Hide details for service lineservice line
IEC 61400-24, ed. 1.0 (2010)
Hide details for [<span>settling time</span>]settling time
IEC 61400-27, ed. 1.0 (2015)
Hide details for shaft designations – examples for typical wind turbine gearbox architectureshaft designations – examples for typical wind turbine gearbox architecture
IEC 61400-4, ed. 1.0 (2012)
Hide details for [<span>short-circuit power</span>]short-circuit power
IEC 61400-27, ed. 1.0 (2015)
Hide details for [<span>short-circuit ratio</span>]short-circuit ratio
IEC 61400-27, ed. 1.0 (2015)
Hide details for short strokeshort stroke
IEC 61400-24, ed. 1.0 (2010)
Hide details for [<span>shutdown</span>]shutdown
IEC 61400-2, ed. 3.0 (2013)
Hide details for significant wave heightsignificant wave height
IEC 61400-3, ed. 1.0 (2009)
Hide details for Site Acceptance Test, SATSite Acceptance Test, SAT
IEC 61400-25-5, ed. 1.0 (2006)
Hide details for [<span>site calibration</span>]site calibration
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for site conditionssite conditions
IEC 61400-26-2, ed. 1.0 (2014)
Hide details for site datasite data
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>small wind turbine</span>]small wind turbine
IEC 61400-2, ed. 3.0 (2013)
Hide details for sound pressure level, [<i>L</i><sub>p</sub>]sound pressure level, Lp
IEC 61400-11, ed. 3.0 (2012)
Hide details for [<span>spanwise</span>]spanwise
IEC 61400-23, ed. 1.0 (2014)
Hide details for SPD tested with [<i>I</i><sub>n</sub>]SPD tested with In
IEC 61400-24, ed. 1.0 (2010)
Hide details for SPD tested with [<i>l</i><sub>imp</sub>]SPD tested with limp
IEC 61400-24, ed. 1.0 (2010)
Hide details for specific energy, [<i>W/R</i>]specific energy, W/R
IEC 61400-24, ed. 1.0 (2010)
Hide details for splash zonesplash zone
IEC 61400-3, ed. 1.0 (2009)
Hide details for standard deviation of production [<i><!-->&sigma;</i><!--><sub>P</sub>]standard deviation of production σP
IEC 61400-14, ed. 1.0 (2005)
Hide details for standard deviation of reproducibility [<i><!-->&sigma;</i><!--><sub>R</sub>]standard deviation of reproducibility σR
IEC 61400-14, ed. 1.0 (2005)
Hide details for standard uncertaintystandard uncertainty
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>standard uncertainty</span>]standard uncertainty
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for standstillstandstill
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>standstill</span>]standstill
IEC 61400-2, ed. 3.0 (2013)
Hide details for standstill (for wind turbines)standstill (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for start-up (for wind turbines)start-up (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for [<span>static test</span>]static test
IEC 61400-23, ed. 1.0 (2014)
Hide details for statistical informationstatistical information
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for statusstatus
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for [<span>steady state of a system</span>]steady state of a system
IEC 61400-27, ed. 1.0 (2015)
Hide details for [<span>stiffness</span>]stiffness
IEC 61400-23, ed. 1.0 (2014)
Hide details for still water levelstill water level
IEC 61400-3, ed. 1.0 (2009)
Hide details for storm surgestorm surge
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>strain</span>]strain
IEC 61400-23, ed. 1.0 (2014)
Hide details for sub-structuresub-structure
IEC 61400-3, ed. 1.0 (2009)
Hide details for Supervisory Control and Data Acquisition, SCADASupervisory Control and Data Acquisition, SCADA
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for support structuresupport structure
IEC 61400-22, ed. 1.0 (2010)
IEC 61400-3, ed. 1.0 (2009)
Hide details for [<span>support structure</span>]support structure
IEC 61400-2, ed. 3.0 (2013)
Hide details for support structure (wind turbines)support structure (wind turbines)
IEC 61400-1, ed. 3.0 (2005)
Hide details for surgesurge
IEC 61400-24, ed. 1.0 (2010)
Hide details for surge protective device, SPDsurge protective device, SPD
IEC 61400-24, ed. 1.0 (2010)
Hide details for surveillancesurveillance
IEC 61400-22, ed. 1.0 (2010)
Hide details for survival wind speedsurvival wind speed
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>survival wind speed (deprecated)</span>]survival wind speed (deprecated)
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>sweep</span>]sweep
IEC 61400-23, ed. 1.0 (2014)
Hide details for swellswell
IEC 61400-3, ed. 1.0 (2009)
Hide details for swept areaswept area
IEC 61400-12-1, ed. 1.0 (2005)
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>swept area</span>]swept area
IEC 61400-12-2, ed. 1.0 (2013)
IEC 61400-2, ed. 3.0 (2013)
Hide details for switching operation (for wind turbines)switching operation (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for [<span>system state variables</span>]system state variables
IEC 61400-27, ed. 1.0 (2015)
Hide details for system testsystem test
IEC 61400-25-5, ed. 1.0 (2006)
Hide details for [<span>tare loads</span>]tare loads
IEC 61400-23, ed. 1.0 (2014)
Hide details for [<span>target load</span>]target load
IEC 61400-23, ed. 1.0 (2014)
Hide details for test equipmenttest equipment
IEC 61400-25-5, ed. 1.0 (2006)
Hide details for test facilitytest facility
IEC 61400-25-5, ed. 1.0 (2006)
Hide details for [<span>test load</span>]test load
IEC 61400-23, ed. 1.0 (2014)
Hide details for test sitetest site
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>test site</span>]test site
IEC 61400-12-2, ed. 1.0 (2013)
Hide details for [<span>tested area</span>]tested area
IEC 61400-23, ed. 1.0 (2014)
Hide details for three phase datathree phase data
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for thunderstorm days, [<i>T</i><sub>d</sub>]thunderstorm days, Td
IEC 61400-24, ed. 1.0 (2010)
Hide details for tidal currenttidal current
IEC 61400-3, ed. 1.0 (2009)
Hide details for tidal rangetidal range
IEC 61400-3, ed. 1.0 (2009)
Hide details for tidestides
IEC 61400-3, ed. 1.0 (2009)
Hide details for time seriestime series
IEC 61400-4, ed. 1.0 (2012)
Hide details for time synchronisationtime synchronisation
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
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IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
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IEC 61400-24, ed. 1.0 (2010)
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IEC 61400-11, ed. 3.0 (2012)
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IEC 61400-11, ed. 3.0 (2012)
Hide details for total standard deviation [<i><!-->&sigma;</i><!--><sub>t</sub>]total standard deviation σt
IEC 61400-14, ed. 1.0 (2005)
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IEC 61400-26-1, ed. 1.0 (2011)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-25-1, ed. 1.0 (2006)
Hide details for [<span>transient time period</span>]transient time period
IEC 61400-27, ed. 1.0 (2015)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-12-2, ed. 1.0 (2013)
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IEC 61400-2, ed. 3.0 (2013)
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IEC 61400-21, ed. 2.0 (2008)
Hide details for [<span>turbulence intensity</span>]turbulence intensity
IEC 61400-12-2, ed. 1.0 (2013)
IEC 61400-2, ed. 3.0 (2013)
Hide details for turbulence intensity, [<i>I</i>]turbulence intensity, I
IEC 61400-1, ed. 3.0 (2005)
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IEC 61400-1, ed. 3.0 (2005)
Hide details for turbulence standard deviation, [<i><!-->&sigma;</i><!--><sub>1</sub>]turbulence standard deviation, σ1
IEC 61400-1, ed. 3.0 (2005)
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IEC 61400-23, ed. 1.0 (2014)
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IEC 61400-22, ed. 1.0 (2010)
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IEC 61400-22, ed. 1.0 (2010)
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IEC 61400-25-5, ed. 1.0 (2006)
Hide details for type testingtype testing
IEC 61400-22, ed. 1.0 (2010)
Hide details for UFF 58UFF 58
IEC 61400-25-6, ed. 1.0 (2010)
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IEC 61400-1, ed. 3.0, amd. 1 (2014)
Hide details for [<span>ultimate limit state</span>]ultimate limit state
IEC 61400-2, ed. 3.0 (2013)
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IEC 61400-27, ed. 1.0 (2015)
Hide details for uncertainty in measurementuncertainty in measurement
IEC 61400-12-1, ed. 1.0 (2005)
Hide details for [<span>under voltage ride through</span>]under voltage ride through
IEC 61400-27, ed. 1.0 (2015)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>unscheduled maintenance</span>]unscheduled maintenance
IEC 61400-2, ed. 3.0 (2013)
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IEC 61400-24, ed. 1.0 (2010)
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IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>upwind</span>]upwind
IEC 61400-2, ed. 3.0 (2013)
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IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
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IEC 61400-23, ed. 1.0 (2014)
Hide details for vertical axis wind turbinevertical axis wind turbine
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>vertical axis wind turbine</span>]vertical axis wind turbine
IEC 61400-2, ed. 3.0 (2013)
Hide details for voltage change factor (for wind turbines)voltage change factor (for wind turbines)
IEC 61400-21, ed. 2.0 (2008)
Hide details for [<span>voltage dip</span>]voltage dip
IEC 61400-27, ed. 1.0 (2015)
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IEC 61400-24, ed. 1.0 (2010)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-3, ed. 1.0 (2009)
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IEC 61400-2, ed. 3.0 (2013)
Hide details for Weibull distribution, [<i>P</i><sub>W</sub>]Weibull distribution, PW
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>whiffle tree</span>]whiffle tree
IEC 61400-23, ed. 1.0 (2014)
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IEC 61400-1, ed. 3.0 (2005)
Hide details for wind power plantwind power plant
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for [<span>wind power plant</span>]wind power plant
IEC 61400-27, ed. 1.0 (2015)
Hide details for wind power plant analogue informationwind power plant analogue information
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for wind power plant componentwind power plant component
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for wind power plant management systemwind power plant management system
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for wind power stationwind power station
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>wind profile</span>]wind profile
IEC 61400-2, ed. 3.0 (2013)
Hide details for wind profile – wind shear lawwind profile – wind shear law
IEC 61400-1, ed. 3.0 (2005)
IEC 61400-3, ed. 1.0 (2009)
Hide details for wind shearwind shear
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>wind shear</span>]wind shear
IEC 61400-12-2, ed. 1.0 (2013)
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>wind shear exponent</span>]wind shear exponent
IEC 61400-2, ed. 3.0 (2013)
Hide details for wind shear exponent, [<!--><i>&alpha;</i>]wind shear exponent, α
IEC 61400-1, ed. 3.0 (2005)
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IEC 61400-2, ed. 3.0 (2013)
Hide details for wind speed at 10 m height, [<i>V</i><sub>10</sub>]wind speed at 10 m height, V10
IEC 61400-11, ed. 3.0 (2012)
Hide details for wind speed binwind speed bin
IEC 61400-11, ed. 3.0 (2012)
Hide details for wind speed distributionwind speed distribution
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>wind speed distribution</span>]wind speed distribution
IEC 61400-2, ed. 3.0 (2013)
Hide details for wind speed, [<i>V</i>]wind speed, V
IEC 61400-1, ed. 3.0 (2005)
Hide details for wind turbinewind turbine
IEC 61400-25-1, ed. 1.0 (2006)
IEC 61400-25-4, ed. 1.0 (2008)
Hide details for [<span>wind turbine</span>]wind turbine
IEC 61400-27, ed. 1.0 (2015)
Hide details for wind turbine electrical systemwind turbine electrical system
IEC 61400-1, ed. 3.0 (2005)
Hide details for wind turbine generator system (wind turbine)wind turbine generator system (wind turbine)
IEC 61400-1, ed. 3.0 (2005)
Hide details for wind turbine manufacturerwind turbine manufacturer
IEC 61400-4, ed. 1.0 (2012)
Hide details for wind turbine ownerwind turbine owner
IEC 61400-4, ed. 1.0 (2012)
Hide details for wind turbine sitewind turbine site
IEC 61400-1, ed. 3.0 (2005)
Hide details for wind turbine terminalswind turbine terminals
IEC 61400-1, ed. 3.0 (2005)
IEC 61400-21, ed. 2.0 (2008)
Hide details for [<span>wind turbine terminals</span>]wind turbine terminals
IEC 61400-27, ed. 1.0 (2015)
Hide details for wind turbine typewind turbine type
IEC 61400-22, ed. 1.0 (2010)
Hide details for wind turbine, WTwind turbine, WT
IEC 61400-21, ed. 2.0 (2008)
Hide details for wind velocitywind velocity
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>wind velocity</span>]wind velocity
IEC 61400-2, ed. 3.0 (2013)
Hide details for witness pointwitness point
IEC 61400-25-5, ed. 1.0 (2006)
Hide details for yaw misalignmentyaw misalignment
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>yaw misalignment</span>]yaw misalignment
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>yaw rate</span>]yaw rate
IEC 61400-2, ed. 3.0 (2013)
Hide details for yawingyawing
IEC 61400-1, ed. 3.0 (2005)
Hide details for [<span>yawing</span>]yawing
IEC 61400-2, ed. 3.0 (2013)
Hide details for [<span>zero (sequence) component  (of a three-phase system)</span>]zero (sequence) component (of a three-phase system)
IEC 61400-27, ed. 1.0 (2015)
Hide details for zero up-crossing wavezero up-crossing wave
IEC 61400-3, ed. 1.0 (2009)


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