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Ultrasonic Characteristics and Aging Properties of the XLPE/SiR Interface

  • Junping Cao
  • , Zelin Zhang
  • , Wenxin Zhong
  • , Zhou Ge
  • , Rong Xia
  • , Kangning Wu
  • , Jianying Li
  • Zhejiang Electric Power Company Maintenance Branch
  • Xi'an Jiaotong University
  • High Voltage Research Institute State Grid Electric Power Research Institute

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Cable joints had an important connecting role in the cable system. Aging of the crosslinked polyethylene (XLPE)/silicone rubber (SiR) interface was the major cause of joint failures. Ultrasonic inspection is a safe and non-destructive means of inspection. In order to clarify the relationship between interfacial aging properties and ultrasonic characteristics, interfacial aging experiments were carried out. The aging properties of interfacial silicone rubber materials were tested and the changes in interfacial ultrasonic characteristics with aging were analyzed. The results shown the XLPE/SiR interface roughness increased with the interface aging, and the ultrasonic echo amplitude at the XLPE/SiR interface decreased due to the enhanced interfacial scattering. When the interfacial pressure increased, the interfacial contact area increased. Therefore, Ultrasonic transmission at the interface was enhanced. Higher interfacial pressures resulted in smaller changes in ultrasonic amplitude due to interfacial aging. The research has certain reference significance for the ultrasonic detection of cable joints XLPE/SiR interface aging.

Original languageEnglish
Title of host publicationProceedings of the 12th Frontier Academic Forum of Electrical Engineering, FAFEE 2025 - Volume I
EditorsQingxin Yang
PublisherSpringer Science and Business Media Deutschland GmbH
Pages73-80
Number of pages8
ISBN (Print)9789819542697
DOIs
StatePublished - 2026
Event12th Frontier Academic Forum of Electrical Engineering, FAFEE 2025 - Xiamen, China
Duration: 23 May 202525 May 2025

Publication series

NameLecture Notes in Electrical Engineering
Volume1504 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference12th Frontier Academic Forum of Electrical Engineering, FAFEE 2025
Country/TerritoryChina
CityXiamen
Period23/05/2525/05/25

Keywords

  • Cable Joints
  • Interface
  • Silicone Rubber
  • Thermo-Mechanically Aging
  • Ultrasonic Inspection

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