LEADER 02084nam 2200373 450 001 996279427003316 005 20231206214114.0 010 $a1-5044-0337-1 024 7 $a10.1109/IEEESTD.1973.7419177 035 $a(CKB)3710000000601316 035 $a(NjHacI)993710000000601316 035 $a(EXLCZ)993710000000601316 100 $a20231206d1973 uy 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aIEEE Std 420-1973 (ANSI N41.17) $eIEEE Trial Use Guide for Class 1E Control Switchboards for Nuclear Power Generating Stations /$fInstitute of Electrical and Electronics Engineers 210 1$aNew York, N.Y. :$cIEEE,$d1973. 215 $a1 online resource (12 pages) $cillustrations 330 $aThis document applies to all Class 1E control switchboards (for example, main control room assemblies, auxiliary panels, local panels or racks, etc) as defined in Section 3, regardless of their application or location. It does not apply to the non-Class 1E control switchboards, except as they affect the Class 1E control switchboards, but recognizes that Class 1E control switchboards may be adjacent to, or joined with, other non-Class 1E control switchboards. This document includes, but is not necessarily limited to, design, construction, wiring practices, shipping, handling, storage, installation, testing, and quality assurance. General design practices which are not unique to Class 1E control switchboards are not addressed in this document. This document applies to piping systems and Class 1E equipment only as they may affect the integrity of the Class lE control switchboard. 517 $aIEEE Std 420-1973 606 $aSwitching theory 606 $aElectric power distribution 615 0$aSwitching theory. 615 0$aElectric power distribution. 676 $a621.381537 801 0$bNjHacI 801 1$bNjHacl 906 $aDOCUMENT 912 $a996279427003316 996 $aIEEE Std 420-1973 (ANSI N41.17)$93646333 997 $aUNISA