电网技术Issue(2)：530-535,6.DOI:10.13335/j.1000-3673.pst.2015.02.036
复合绝缘子老化状态精细评估中的取样方法
Sampling Method for Aging State Fine-Estimation of Composite Insulators
摘要
Abstract
Fine-estimation of composite insulators can provide more accurate information related to the aging state of composite insulators, however, the sampling method during the estimation not only influences on the judgment of the aging state of the insulator and its residual life, but also closely relates to the test efficiency. Taking more than one hundred composite insulator strings as research objects, flaky specimens with uniform thickness are achieved by self-developed slicer and by means of Fourier transform infrared spectrum (FTIR) technology the sampling method for aging state fine-estimation of composite insulators is systemically researched. Through the FTIR tests performed to the specimens located at different depths from the upper surface of the shed, the referential specimens, which are used to reflect the noumenal characteristics of the material in follow-up research, are determined; through the testing of the specimens of composite insulators, which are produced by different manufactures and located at different operation environments, the impacts of the sampling schemes on the aging estimation are researched; through testing and analysis on the specimens from the sheds located at different positions of the insulator and the specimens from different directions of the shed, the influencing rule of slicing schemes on aging state estimation of composite insulators is explored, and then a set of sampling methods suitable for on-site aging state fine-estimation of composite insulators is put forward, which can provide theoretical basis in a certain extent for the application of composite insulators in UHV projects and the drafting of related standards.关键词
复合绝缘子/老化状态/精细评估/取样方法/傅里叶红外光谱/测试方法Key words
composite insulator/aging state/fine-estimation/sampling method/Fourier transform infrared spectrum/test method分类
信息技术与安全科学引用本文复制引用
梁英,崔春艳,易春芳,杨晓辉..复合绝缘子老化状态精细评估中的取样方法[J].电网技术,2015,(2):530-535,6.基金项目
国家自然科学基金项目(51207055)；河北自然科学基金项目(E2013502213)。 （51207055）
