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20133No．32013ElectricWire＆Cable20136Jun．2013314006UL1581—2008。PVC、XJ-30APVC、XJ-30A。TM206A1672-6901201303-0024-04DeterminationoftheTemperatureCorrectionFactorforInsulationResistanceofCablesWANGLi-meiZHAOSu-minZHUHang-boPENGXiongTAORui-xiangZhejiangChintCablesCo．Ltd．Jiaxing314006ChinaAbstractThetemperaturecorrectionfactorfordifferentmaterialsatdifferenttemperatureswasdeterminedbythetestmethodinUL1581—2008andcomputeformulaincablesmanual．ThetemperaturecorrectionfactorforpolyvinylchloridePVCandethylene-propylenerubbercompoundXJ-30AwasdeterminedbyinsulationresistancetestanddatatidyonPVCandXJ-30A．Keywordsinsulationresistancetestmethodtemperaturecorrection2012-10-091969－．1314006．0。。XJ-30A20℃。。11.121。1/mm22.570℃PVC50m22.5XJ-30A50m21.21ZC－90。2。2ZC－90/Ω/V/minZC－900～1012100、250、500、10001～72RTS—0A0～95℃0.01。30～50℃0.1。1.325～27℃。≤80%。22.110min10min。。10min。1%。2.216h10℃。1。600mm。11－2－3－。10℃、13℃、16.1℃、22.2℃、27.8℃、32℃35℃。20℃、21℃20℃21℃1ββ2K。R20=eβt－20×Rv1K=eβt－202R2020℃MΩ·kmRvtMΩ·kmβt℃K。33.1R－3。3.24。3MΩ·km10℃13℃16.1℃20℃22.2℃27.8℃32℃35℃PVCXJ-30A76.0－27.0－9.94.2－1.662.5－21.9－8.53.8－－85.4－33.4－12.85.4－2.267.7－24.5－10.94.2－－72.9－26.7－10.54.4－1.9314025552170177515801175920745294025352155177516051180900－33903070261521101890141511259503390290524552055182514301110－3215.02766.32348.81928.81725.01300.01013.8847.54lgR－10℃13℃16.1℃20℃22.2℃27.8℃32℃35℃PVC1.86－1.43－1.020.64－0.28XJ-30A3.513.443.373.293.243.113.012.933.33、42～5。·52·20133No．32013ElectricWire＆Cable20136Jun．20132PVC3PVC4XJ-30A5XJ-30A44.124PVC、XJ-30A20℃、21℃β0.1473、0.05292K5。4.220℃K6。4.3UL1581—2008β2K7。。520℃/℃101316.12022.227.83235PVC0.23－0.56－1.383.15－9.11XJ-30A0.590.690.811.001.121.511.892.21620℃/℃101316.12022.227.83235PVC0.21－0.58－1.473.49－8.13XJ-30A0.600.690.820.991.111.471.892.26·62·20133No．32013ElectricWire＆Cable20136Jun．20137K/℃KPVCXJ-30A/℃KPVCXJ-30A10.0610.37221．341．1120.0710.39231.561.1730.0820.41241．801．2440.0950.43252．091．3050.1100.45262．421．3760.1270.48272．801．4570.1470.50283．251．5380.1710.53293．761．6190.1980.56304．361．70100.2290.59315．051．79110.2660.62325．861．89120.3080.65336．7991．99130.3570.69347．862．10140.4130.73359．112．21150.4790.773610．562．33160.5550.813712．232．46170.6430.853814．172．59180.7450.903916．422．73190.8630.954019．032．88201.0001.004122．053．04211.161.054225．553．205135PVC、XJ-30APVC、XJ-30A。2UL1581—200815.6℃20℃UL1581—2008220℃K。。。3。1ANSI/UL1581—2008ReferencestandardforelectricalwirecableandflexiblecordsS．2GB/T3048—2007S．3．8M．檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿2001．20Leσ、Dm1.9～2×10－3H/km2×10－3H/km。Li=δ×n×aπ×D1×a+Δ×μ×10－412D1μnδΔa。RmR1R2Rm=R1×R2R1+R213R1=1000ρπ×D+Δal×Δal14R2=1000πD1ρka×δ×n×a+Δ15ρ0.0283Ω·mm2/mDΔalρk0.132Ω·mm2/m。51。2、。3、。·72·20133No．32013ElectricWire＆Cable20136Jun．2013