IEC 61400-1:2019/ISH1:2025
(Main)Interpretation Sheet 1 - Wind energy generation systems - Part 1: Design requirements
Interpretation Sheet 1 - Wind energy generation systems - Part 1: Design requirements
Feuille d'interprétation 1 - Systèmes de génération d'énergie éolienne - Partie 1: Exigences de conception
General Information
Relations
Standards Content (Sample)
© IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 61400-1
Edition 4.0 2019-02
WIND ENERGY GENERATION SYSTEMS –
Part 1: Design requirements
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by IEC technical committee 88: Wind energy
generation systems.
The text of this interpretation sheet is based on the following documents:
DISH Report on voting
88/1065/DISH 88/1078/RVDISH
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
___________
Question 1:
Subclause 6.4.2 mentions normal other environmental conditions that shall be taken into
account and, specifically speaking, an ambient temperature range of –10 °C to +40 °C. Does
this mean that the wind turbines shall be designed to operate at rated power up to 40 °C on the
maximum limit, or does it mean that the wind turbine can be designed to operate at any
maximum temperature limit below 40 °C, let's assume 35 °C or 32 °C, etc. ?
Answer 1:
The standard requires that turbines designed to one of the design classes stated in Table 1 in
Subclause 6.2 be capable of operating and generating at temperatures up to +40 °C. There is
no requirement that the turbine shall generate maximum rated power at +40 °C.
ICS 27.180
IEC 61400-1:2019-02/ISH1:2025-02(en-fr)
– 2 – IEC 61400-1:2019/ISH1:2025
© IEC 2025
COMMISSION ÉLECTROTECHNIQUE INTERN
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.