Accreditation of radiated emission tests performed on train and complete vehicle

In this paper the ISO/IEC 17025 accreditation requirements relevant to radiated emission tests performed according to parts 2 and 3.1 of norms EN 50121 and IEC 62236 are discussed. This is particularly difficult due to the unconventional nature of test environment, not only because tests are performed outdoors but mainly because radiated emissions from system under test shall be measured while it is moving. Test procedure, calibration of test equipment and calculation of uncertainty are discussed and the solutions adopted to comply with the accreditation requirements are presented.