IEC 61400-40 ED1

Wind energry generation systems - Part 40: Electromagnetic Compatibility (EMC) - Requirements and test methods

General information

Current stage: 50.00 Effective date: Aug 13, 2025

Next stage: CFDIS Next stage date: Nov 5, 2025

Originator: IEC

Owner: TC 88

Type: International Standard

ICS: 27.180

Scope

IEC 61400-40:2025 provides the EMC requirements and test methods that apply to the individual wind turbine and all the sub systems which are part of the wind turbine.
The current document applies to measurements on individual wind turbines and not multiple wind turbines.
This document defines the requirements and test methods for the verification of the wind turbine performance against radiated emissions and the immunity of their components against conducted and radiated phenomena. This document is applicable to onshore and offshore wind turbines.

Life cycle

NOW

IN_DEVELOPMENT
IEC 61400-40 ED1
50.00 Final text received or FDIS registered for formal approval
Aug 13, 2025