A contribution to the evaluation of uncertainty associated with radio interference voltage tests of high-voltage equipment

To limit high-frequency corona noise emission of overhead transmission lines and substations, the insulator sets and some high-voltage substation equipment are subject to radio-interference voltage (RIV) tests and the resulted RIV levels must comply with imposed limits. This paper deals with the uncertainty associated with the result of RIV test and tries to compensate some gaps and vague provisions of the actual test standard.