BS EN 61400-23:2014

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Notation
5 General principles
6 Documentation and procedures for test blade
7 Blade test program and test plans
8 Load factors for testing
9 Test loading and test load evaluation
10 Test requirements
11 Test results evaluation
12 Reporting
Annex A (informative) - Guidelines for the necessity of
        renewed static and fatigue testing
Annex B (informative) - Areas to be tested
Annex C (informative) - Effects of large deflections and
        load direction
Annex D (informative) - Formulation of test load
Annex E (informative) - Differences between design and
        test load conditions
Annex F (informative) - Determination of number of
        load cycles for fatigue tests
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding
         European publications

Specifies the requirements for full-scale structural testing of wind turbine blades and for the interpretation and evaluation of achieved test results.

IEC 61400-23:2014 defines the requirements for full-scale structural testing of wind turbine blades and for the interpretation and evaluation of achieved test results. The standard focuses on aspects of testing related to an evaluation of the integrity of the blade, for use by manufacturers and third party investigators. The following tests are considered in this standard:
- static load tests;
- fatigue tests;
- static load tests after fatigue tests;
- tests determining other blade properties. The purpose of the tests is to confirm to an acceptable level of probability that the whole population of a blade type fulfils the design assumptions.