IEC 63461:2024适用于机组功率大于5 MW的任何类型冲击式水轮机的实验室模型试验。它包含管理测试行为的规则，并提供了在测试的任何阶段有争议时应采取的措施。 本文件的主要目标是: -定义所使用的术语和数量； -规定测试和测量所涉及数量的方法，以确定模型的水力性能； -指明计算结果及与保证比较的方法； -确定本文件范围内的合同担保是否已履行； -确定最后报告的范围、内容和结构。 对于功率较小的机器，完全应用本文描述的程序通常是不合理的。然而，通过买方和供应商之间的协议，本文件可用于此类机器。

IEC 63461:2024 applies to laboratory model tests of any type of Pelton hydraulic turbine with unit power greater than 5 MW. It contains the rules governing test conduct and provides measures to be taken if any phase of the tests is disputed.
The main objectives of this document are:
- to define the terms and quantities used;
- to specify methods of testing and of measuring the quantities involved, in order to ascertain the hydraulic performance of the model;
- to specify the methods of computation of results and of comparison with guarantees;
- to determine if the contract guarantees that fall within the scope of this document have been fulfilled;
- and to define the extent, content and structure of the final report.
Full application of the procedures herein described is not generally justified for machines with smaller power. Nevertheless, this document can be used for such machines by agreement between the purchaser and the supplier.