公开(公告)号：US20240192191A1

公开(公告)日：2024-06-13

申请号：US17789534

申请日：2021-12-10

Applicant: State Grid Hebei Electric Power Co., Ltd. Research Institute ,  State Grid Corporation of China ,  State Grid Hebei Energy Technology Service Co., Ltd. ,  HEBEI SILICON VALLEY CHEMICAL CO., LTD. ,  ZIBO QIANHENG AUTOMATION ENGINEERING CO., LTD.

Inventor： Boyan Jia ,  Jie Liu ,  Yanwei Xia ,  Xianhai Pang ,  Yuhao Zhao ,  Shilin Li ,  Liqiang Song ,  Xiangxia Liu

IPC: G01N33/44 ,  G01N3/20 ,  G01N3/40 ,  G01N21/31

CPC classification number: G01N33/445 ,  G01N3/20 ,  G01N3/40 ,  G01N21/31

Abstract: A method for evaluating an aging state of a silicone rubber composite insulator includes: step 1: collecting samples from the silicone rubber composite insulator, and subjecting samples in a surface layer and a center layer successively to hydrophobicity, flexing resistance, hardness, color, and absorbance tests; step 2: determining relevant data of the samples in a natural evolution process according to the tests in step 1; step 3: subjecting the samples to thermo-oxidative aging; and after the thermo-oxidative aging is completed, subjecting the samples to a hardness test of artificial accelerated evolution, and calculating position coordinates (F1, F2) of the samples in an aging space; and step 4: classifying the samples in advance and solving an aging state centroid of each classified population, calculating a minimum aging distance based on the position coordinates in step 3, and evaluating the aging state of the silicone rubber composite insulator.