中国电工网www.chinaet.net核电厂低压电缆老化状态监测指标分析与研究雷成,高帆,杨磊,李亮(江苏核电有限公司,江苏连云港222042)摘要:热老化和辐照老化是核电厂安全壳内低压电缆老化的主要影响因素。通过对样本电缆进行热-辐照联合加速老化试验,测量了电缆的多项状态参数,并建立了各项状态参数随时间的变化曲线,最终分析确定,断裂伸长率、压缩模量和氧化诱导期这三项指标可以作为电缆老化状态监测的基准指标。关键词:老化;断裂伸长率;压缩模量;氧化诱导期中图分类号:TM246.9DOI:10.19768/j.cnki.dgjs.2023.01.037AnalysisandResearchonMonitoringIndexofAgingStatusofLow-voltageCableintheNuclearPowerPlantLEICheng,GAOFan,YANGLei,LILiang(JiangsuNuclearPowerCorporation,Lianyungang222042,China)Abstract:Thermalagingandirradiationagingarethemainfactorsaffectingtheagingoflow-voltagecablesinnuclearpowerplantcontainment.Throughthestudyoftheheat-irradiationofsamplecablejointacceleratedagingtest,severalstateparametersofthecablearemeasured,andthechangecurveofeachstateparameterwithtimeisestablished.Thefi-nalanalysisdeterminedthatthethreeindicatorsofelongationatbreak,compressionmodulusandoxidationinductionperi-odcanbeusedasbenchmarkindicatorsforcableagingconditionmonitoring.Keywords:aging;elongationatbreak;compressionmodulus;oxidationinductionti...