IEC WT 01:2001

IEC System for Conformity Testing and Certification of Wind Turbines - Rules and procedures

General Information

• Status: Replaced
• Publication Date: 13-Apr-2001
• Technical Committee: IEC/TC - IEC/TC
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 31-May-2010

Relations

• Replaced By: IEC 61400-22:2010 - Wind turbines - Part 22: Conformity testing and certification
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL
IEC
ELECTROTECHNICAL
WT 01
COMMISSION
First edition
2001-04
IEC System for Conformity Testing and
Certification of Wind Turbines
Rules and procedures
Reference number
INTERNATIONAL
IEC
ELECTROTECHNICAL
WT 01
COMMISSION
First edition
2001-04
IEC System for Conformity Testing and
Certification of Wind Turbines
Rules and procedures
 IEC 2000  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including
photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
Commission Electrotechnique Internationale
XA
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

– 2 – IEC WT 01  IEC:2001(E)
CONTENTS
Page
FOREWORD.5

INTRODUCTION.6

Clause
1 Title.7

2 Object .7

3 Governing documents.7

4 Organization.7
5 Scope.7
6 References.8
7 Definitions .9
8 Symbols and abbreviations.11
8.1 Symbols .11
8.2 Abbreviations .11
9 Acceptance of Operating Bodies.11
9.1 General .11
9.2 Accreditation .11
9.3 Recognition Arrangements .11
10 Management of the Certification system .12
10.1 General .12
10.2 Agreement on Certification .12
10.3 Issue of Certificates and Conformity Statements .12
10.4 Security of Relevant Documentation.12
10.5 Maintenance and Expiration of Certificates.13
10.6 Corrective Actions .13
11 The Extent of Certification .13
11.1 General .13
11.2 Type Certification .13
11.3 Project Certification.14
11.4 Component Certification .15
12 Type Certification .16

12.1 General .16
12.2 Design Evaluation .16
12.2.1 Design Control.17
12.2.2 Control and Protection System .17
12.2.3 Loads and Load Cases .17
12.2.4 Structural, Mechanical and Electrical Components .18
12.2.5 Component Tests .18
12.2.6 Foundation Design Requirements .18
12.2.7 Manufacturing Plan.19
12.2.8 Installation Plan.19
12.2.9 Maintenance Plan.19
12.2.10Personnel Safety .20
12.2.11Design Evaluation Conformity Statement .20

IEC WT 01  IEC:2001(E) – 3 –
Clause Page
12.3 Type Testing .20

12.3.1 Safety and Function Tests .21

12.3.2 Power Performance Measurements .22

12.3.3 Load Measurements .22

12.3.4 Blade Tests .22

12.3.5 Other Tests .23

12.3.6 Test Reports.23

12.3.7 Type Test Conformity Statement.23

12.4 Manufacturing Evaluation .23
12.4.1 Quality System Evaluation .23
12.4.2 Manufacturing Inspection.24
12.4.3 Manufacturing Conformity Statement .24
12.5 Foundation Design Evaluation .24
12.6 Type Characteristics Measurements.25
12.6.1 Power Quality Measurements .25
12.6.2 Acoustic Noise Measurements.25
12.6.3 Test Reports.26
12.6.4 Type Characteristics Measurements Conformity Statement .26
12.7 Final Evaluation.26
12.8 Type Certificate.27
13 Project Certification .27
13.1 General .27
13.2 Site Assessment.28
13.3 Foundation Design Evaluation .28
13.4 Installation Evaluation .29
13.4.1 Installation Quality System .29
13.4.2 Surveillance/Audits.30
13.4.3 Installation Conformity Statement .30
13.5 Project Certificate.30
13.6 Operation and Maintenance Surveillance.31
13.6.1 General .31
13.6.2 Operation and Maintenance Surveillance Requirements .31
13.6.3 Operation and Maintenance Surveillance Conformity Statement .31

Annex A (Informative) Design Documentation .32
Annex B.1 (Informative) Type Certificate Example Format .36
Annex B.2 (Informative) Design Evaluation Conformity Statement Example Format .38
Annex B.3 (Informative) Type Test Conformity Statement Example Format.39
Annex B.4 (Informative) Manufacturing Conformity Statement Example Format. .40
Annex B.5 (Informative) Foundation Design Evaluation Conformity Statement Example
Format.41
Annex B.6 (Informative) Type Characteristics Measurements Conformity Statement
Example Format.42
Annex B.7 (Informative) Project Certificate Example Format .43
Annex B.8 (Informative) Site Assessment Conformity Statement Example Format .44
Annex B.9 (Informative) Foundation Design Conformity Statement Example Format .45

– 4 – IEC WT 01  IEC:2001(E)
Annex B.10 (Informative) Installation Conformity Statement Example Format.46

Annex B.11 (Informative) Operation and Maintenance Surveillance Conformity

Statement Example Format.47

Annex B.12 (Informative) Component Certificate Example Format .48

Annex C Minimum Requirements for Load Measurements.49

Annex D Requirements for Safety and Function Testing.50

Annex E Duration Tests for Small Wind Turbines .52

Figure 1 – Modules of type certification.14

Figure 2 – Modules in Project Certification.15
Figure 3 – Elements of design evaluation.17
Figure 4 – Type testing elements .21

IEC WT 01  IEC:2001(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

___________
IEC SYSTEM FOR CONFORMITY TESTING AND CERTIFICATION

OF WIND TURBINES –
RULES AND PROCEDURES
FOREWORD
This publication has been prepared by TC 88: Wind turbine systems, and has been approved
by the Conformity Assessment Board (CAB). It defines a certification system for wind
turbines.
It specifies rules of procedure and management for carrying out conformity evaluation with
respect to standards and technical requirements for wind turbines. This document is intended
to be used with other technical standards and normative documents and, where necessary,
technical requirements and test procedures are specified.
Compliance with this system does not relieve any person, organisation or corporation of the
responsibility for observing other applicable regulations.
The text of this publication is based on the following documents:
Documents Report on voting
88/115/CDV
CAB/235A/DV CAB/270/RV
Full information on the voting of the approval of this publication can be found in the report on
voting indicated in the above table.

– 6 – IEC WT 01  IEC:2001(E)
INTRODUCTION
NOTE This INTRODUCTION provides an overview of the IEC WT System and is not part of the Rules.

The international scheme for recognition of results of testing to standards for wind turbines is
operated by the IEC, and known as the IEC WT System. The IEC WT System is based on the

principle of mutual recognition (reciprocal acceptance) by participants of test results and

certificates issued by other participants for obtaining certification at national level, and

operates within the scope of the IEC 61400 series of standards for wind turbines.

In addition to type testing, the IEC WT System provides for the recognition of or assessment

for approval of the manufacturer's quality system, regular surveillance through inspection of

the manufacturer's factory quality system and product quality plans, and audit testing of
samples from the manufacturer's factory. The System is intended to result in significant
benefit to the manufacturer by reducing the
...