Provides a method of test of the level of radio interference of insulators for use on overhead lines.RECONFIRMATION NOTICETechnical Committee EL-010 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 18 November 2015.The following are represented on Technical Committee EL-010:Australian Industry GroupElectricity Engineers Association (New Zealand)Energy Networks Association