Intsimbi eqinisiweyo ye-ACSR conductor okanye i-aluminium conductor isetyenziswa njenge-transmission engenanto ephezu kwentloko kwaye njengentambo yokusasaza ephambili neyesibini. Imicu yangaphandle yi-aluminium ecocekileyo kakhulu, ekhethwe ngenxa yokuqhuba kwayo kakuhle, ubunzima obuphantsi, ixabiso eliphantsi, ukumelana nokugqwala kunye nokumelana okuhle koxinzelelo loomatshini. Umcu osembindini yintsimbi yokuxhasa amandla ongezelelweyo ukunceda ukuxhasa ubunzima bomqhubi. Intsimbi inamandla aphezulu kune-aluminium nto leyo evumela ukuba uxinzelelo loomatshini lubekwe kwi-conductor. Intsimbi ikwanayo ne-elastic deformation ephantsi kunye ne-inelastic (ukuphakama okungapheliyo) ngenxa yomthwalo woomatshini (umz. umoya kunye nomkhenkce) kunye ne-coefficient ephantsi yokwandiswa kobushushu phantsi komthwalo wangoku. Ezi mpawu zivumela i-ACSR ukuba ihle kakhulu kune-all-aluminium conductors. Ngokwe-International Electrotechnical Commission (IEC) kunye ne-CSA Group (eyayisakuba yi-Canadian Standards Association okanye i-CSA) name convention, i-ACSR ibizwa ngokuba yi-A1/S1A.
I-alloy ye-aluminium kunye nobushushu obusetyenziswa kwimicu yangaphandle eMelika naseKhanada buqhele ukuba yi-1350-H19 kwaye kwezinye iindawo yi-1370-H19, nganye inomxholo we-aluminium oyi-99.5+%. Ubushushu be-aluminium buchazwa sisimamva senguqulelo ye-aluminium, esithi kwimeko ye-H19 siqine kakhulu. Ukuze kwandiswe ubomi benkonzo yemicu yentsimbi esetyenziselwa isiseko somqhubi, zihlala zigqunywe nge-galvanized, okanye zigqunywe nge-zinc ukuthintela ukugqwala. Ububanzi bemicu esetyenziselwa imicu ye-aluminium kunye nentsimbi buyahluka kwimicu ye-ACSR eyahlukeneyo.
Intambo ye-ACSR isaxhomekeke kumandla okutsalwa kwe-aluminium; iqiniswa kuphela yintsimbi. Ngenxa yoku, ubushushu bayo obuqhubekayo bokusebenza bunqunyelwe kwi-75 °C (167 °F), ubushushu apho i-aluminium iqala ukuthamba nokuthamba ngokuhamba kwexesha. Kwiimeko apho kufuneka amaqondo obushushu aphezulu okusebenza, i-aluminium-conductor steel-supported (ACSS) ingasetyenziswa.
Ukubekwa komqhubi kugqitywa ngeminwe emine eyoluliweyo; icala “lasekunene” okanye “lasekhohlo” lokubekwa limiselwa kuxhomekeke ekubeni lihambelana na necala lomnwe ukusuka kwisandla sasekunene okanye sasekhohlo ngokulandelelanayo. Ii-aluminium ezingaphezulu (AAC, AAAAC, ACAR) kunye nee-ACSR conductors e-USA zihlala zenziwe ngomaleko womqhubi wangaphandle onesandla sasekunene. Xa usiya embindini, umaleko ngamnye uneendawo ezitshintshanayo. Ezinye iintlobo zee-conductor (umz. i-copper overhead conductor, i-OPGW, i-steel EHS) zahlukile kwaye zinesandla sasekhohlo kwi-conductor yangaphandle. Amanye amazwe aseMzantsi Melika achaza indlela yokubekwa kwesandla sasekhohlo komaleko womqhubi wangaphandle kwi-ACSR yawo, ngoko ke ezo zinto zijijeke ngendlela eyahlukileyo kunezo zisetyenziswa e-USA.
I-ACSR eyenziwe sithi ingahlangabezana nomgangatho we-ASTM, AS, BS, CSA, DIN, IEC, NFC njl.
Ixesha leposi: Sep-09-2024