logo

Standards Manage Your Business

We Manage Your Standards

IEC

IEC TS 61400-4-1:2026

Wind energy generation systems - Part 4-1: Reliability assessment of drivetrain components in wind turbines

Standard Details

IEC TS 61400-4-1:2026 specifies a method to calculate the design reliability of wind turbines gearboxes covered by IEC 61400‑4, based upon failure modes where standardized calculation methods are publicly available.
For the calculable failure mechanisms, it is possible to compare the reliability between different gearbox designs within the limitations of the theoretical models. The use of field-based statistical parameters can improve the accuracy of the calculated reliability.
The calculated design reliability can provide information for the lifecycle management strategy. However, this document does not provide trade-off decisions between higher design reliability and maintenance strategies (e.g. preventive or predictive maintenance). This document does not consider repairable system analysis.
Due to the lack of accepted theoretical models for some failure modes, the model can currently not predict the apparent failure probability in the field.
Neither this document nor IEC 61400-4 specify a minimum value of design reliability.

General Information

Status : ACTIVE
Standard Type: Main
Document No: IEC TS 61400-4-1:2026
Document Year: 2026
Pages: 35
Edition: 1.0
  • Section Volume:
  • TC 88 Wind energy generation systems
  • ICS:
  • 27.180 Wind turbine energy systems

Life Cycle

Currently Viewing

ACTIVE
IEC TS 61400-4-1:2026
Knowledge Corner

Expand Your Knowledge and Unlock Your Learning Potential - Your One-Stop Source for Information!

© Copyright 2026 BSB Edge Private Limited.

Enquire now +