LEADER 00568oam 2200181z- 450 001 996280095003316 010 $a1-5044-4682-8 035 $a(CKB)4100000006937967 035 $a(EXLCZ)994100000006937967 100 $a20190811c2018uuuu -u- - 101 0 $aeng 200 00$aIEEE/IEC P60255-118-1/D8, January 2018 210 $cIEEE 517 $aP60255-118-1/D8, Jan 2018 - IEEE/IEC Approved Draft International Standard - Measuring relays and protection equipment - Part 118-1 906 $aDOCUMENT 912 $a996280095003316 996 $aIEEE$9878179 997 $aUNISA