IEEE 400.2-2013

http://www.pdfengineers.org/164027-ieee-4002-2013-.html

1. OverviewThis guide provides a description of the methods and practices to be used in the application of very lowfrequency (VLF) ac high-voltage excitation for field testing of shielded power cable systems (Bach [B1]1and [B2]; Baur, Mohaupt, and Schlick [B6]; Gnerlich [B11]). VLF ac voltage testing is an alternativemethod of continuous ac voltage testing and is used for a broad range of accessory and cable types(Kobayashi, et al. [B26], Steennis, Boone, and Montfoort [B32]) as well as testing of rotating machinery,see IEEE Std 433™. It provides a method of evaluation, and helps to fill the need for more completeinformation on the cable system condition while minimizing or eliminating some potential adversecharging effects of the direct voltage high-potential test method (commonly known as the dc hi-pot test)(Srinivas and Bernstein [B31]; Eager, et al. [B8]; Hampton, et al. [B19]; Groenefeld, von Olshausen, andSelle [B14]; Steennis, Boone, and Montfoort [B32]; Gockenbach and Hauschild [B12]). This guideaddresses VLF ac voltage withstand and dielectric loss testing in the frequency range from 0.01 Hz to 1 Hz.The guide does not focus on the effects of insulation materials parameters: the nature of the differencesbetween insulation materials, the subject of the peroxide crosslinking agent by-products, or on the influenceof the VLF stress application on the cable system. Therefore, caution is recommended in interpretation ofresults.1