LEADER 02261nam 2200373 450 001 996279564203316 005 20231206174006.0 010 $a0-7381-1388-3 024 7 $a10.1109/IEEESTD.1987.86250 035 $a(CKB)3780000000089237 035 $a(NjHacI)993780000000089237 035 $a(EXLCZ)993780000000089237 100 $a20231206d1987 uy 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aANSI/IEEE Std 930-1987 $eIEEE Guide for the Statistical Analysis of Electrical Insulation Voltage Endurance Data /$fInstitute of Electrical and Electronics Engineers 210 1$aPiscataway, NJ :$cIEEE,$d1987. 215 $a1 online resource (28 pages) 330 $aReplaced by 930-2004. This guide describes, with examples, statistical methods to analyze the data for time-to-failure from constant-stress voltage endurance tests or breakdown voltage from progressive-stress tests on specimens or systems of electrical insulation. Methods to compare test data are also given. The methods are principally applied to data from tests on solid insulation, but may also apply to the analyses of data from tests on gas, liquid, and composite systems. The statistical methods discussed here do not take into consideration the physical mechanism of voltage aging. The methods assume that the only aging stress is alternating voltage of constant frequency. The methods may not apply if there is more than one aging stress. Methods to ascertain the short time withstand voltage or operating voltage of an insulation system are not presented in this guide. The mathematical techniques contained in this guide may not directly apply to the estimation of equipment life. 517 $aANSI/IEEE Std 930-1987: IEEE Guide for the Statistical Analysis of Electrical Insulation Voltage Endurance Data 606 $aElectric insulators and insulation$xTesting 606 $aElectric measurements 615 0$aElectric insulators and insulation$xTesting. 615 0$aElectric measurements. 676 $a621.31937 801 0$bNjHacI 801 1$bNjHacl 906 $aDOCUMENT 912 $a996279564203316 996 $aANSI$92072434 997 $aUNISA