IEC 61400-1 pdf download – Wind turbines – Part 1: Design requirements

IEC 61400-1 pdf download – Wind turbines – Part 1: Design requirements
IEC 60204-1，Safety of machinery – Electrical equipment of machines – Part 1: Generalrequirements
IEC 60204-11，Safety of machinery – Electrical equipment of machines – Part 11:Requirements for Hv equipment for voltages above 1 ‘ooo v a.c. or 1 500 v d.c. and notexceeding 36 kv
lEC 60364(all parts),Low-voltage electrical installations
IEC 60364-5-54，Electrical installations of buildings – Part 5-54: Selection and erection ofelectrical equipment – Earthing arrangements，protective conductors and protective bondingconductors
IEC 60721-2-1，Classification of environmental conditions – Part 2: Environmental conditionsappearing in nature – Temperature and humidity
IEC 61000-6-1，Electromagnetic compatibility (EMC) – Part 6-1: Generic standards -lmmunity for residential,commercial and light-industrial environments
IEC 61000-6-2，Electromagnetic compatibility (EMC) – Part 6-2: Generic standards -lmmunity for industrial environments
IEC 61000-6-4，Electromagnetic compatibility (EMC) – Part 6-4: Generic standards -Emission standard for industrial environments
IEC 61400-2, Wind turbines – Part 2: Design requirements for small wind turbines
IEC 61400-21，Wind turbines – Part 21: Measurement and assessment of power qualitycharacteristics of grid connected wind turbines
IEC 61400-24,Wind turbines – Part 24: Lightning protection
IEC 62305-3，Protection against lightning – Part 3: Physical damage to structures and lifehazard
IEC 62305-4，Protection against lightning – Part 4: Electrical and electronic systems withinstructures
lso 76:2006,Rolling bearings – Static load ratings
IsO 281，Rolling bearings – Dynamic load ratings and rating life
Iso 2394:1998, General principles on reliability for structures
ISO 2533:1975,Standard atmosphere
ISO 4354,Wind actions on structures
ISo 6336-2，Calculation of load capacity of spur and helical gears – Part 2: Calculation ofsurface durability (pitting)
ISo 6336-3:2006,Calculation of load capacity of spur and helical gears – Part 3: Calculationof tooth bending strength
ISO 81400-4, Wind turbines – Part 4: Design and specification of gearboxes
3Terms and definitions
3.26 – limit state
Replace lso 2394 by 2.2.9 of lso 2394.
3.55 – ultimate limit state
Replace lso 2394 by 2.2.10 of lso 2394.
4symbols and abbreviated terms
4.1symbols and units
Switch the definitions of oz and a3.The vertical wind velocity standard deviation should be o3,not a2.
6External conditions
6.3.1.3 Normal turbulence model(NTM)
Replace the existing Figures 1a and 1b by the following new figures:
6.3.2.6Extreme wind shear (Ews)
Replace the number 2,5 in equations (26) and (27) to 2,5[m/s].(The number 2,5 in equations(26) and (27) is not dimensionless.)
7 structural design
7.4.2 Power production plus occurrence of fault or loss of electrical network
connection (DLC 2.1 – 2.4)
Add, as 2nd paragraph, the following new text:
As an alternative to the specification of DLC 2.3 above and in Table 2,DLC 2.3 may insteadbe considered as a normal event (i.e. a partial safety factor for load of 1,35) to be analyzedusing stochastic wind simulations (NTM-Vin