Iiyunithi zokuhambisa amandla (PDUs) ziyinxalenye ebalulekileyo yamaziko edatha yanamhlanje, amagumbi omncedisi kunye neefowuni zenethiwekhi, ukubonelela ngendlela ethembekileyo nefanelekileyo yokusabalalisa amandla ukusuka kumthombo omnye ukuya kwizixhobo ezininzi. Ii-PDU ziza kwiindidi ezahlukeneyo, ubungakanani kunye neempawu, kodwa enye yezona zinto zibalulekileyo ekufuneka ziqwalaselwe xa ukhetha i-PDU sisiqinisekiso sayo sokhuseleko. Emantla Melika, kukho imigangatho emibini yokhuseleko yePDU omele uyiqaphele: UL kunye neCSA.
UL PDU isishwankathelo:
I-UL imele i-Underwriters Laboratories, umbutho ozimeleyo owaziwayo kwihlabathi jikelele ovavanyayo noqinisekisa iimveliso zokhuseleko nokusebenza. Inkqubo yoqinisekiso lwe-PDU ye-UL iquka iindidi ezininzi zePDU kunye nezicelo, kubandakanywa i-rack-mount PDUs, i-PDU yomgangatho ophantsi, ii-PDU zodonga, kunye nee-PDU zokuphatha umoya. Isiqinisekiso sePDU sika-UL sibandakanya uvavanyo kukhuseleko lombane, ukumelana nomlilo, iimeko zokusingqongileyo, kunye nezinye iindawo ezinxulumeneyo. Ukufumana isatifikethi se-UL, ii-PDU kufuneka zivavanywe ngokungqongqo kwaye zihlangabezane nemigangatho engqongqo, kuquka i-UL 60950-1 kunye ne-UL 60950-22. Izatifikethi ze-UL zee-PDU zibonakalisa ngokubanzi ukuba zikhuselekile kwaye zithembekile ukusetyenziswa ngokubanzi.
Uncedo lwe-UL PDU:
Enye yeenzuzo zee-PDU ezifakwe kwi-UL kukuba zikhusela kwiingozi zombane ezifana nokugqithiswa, iisekethe ezimfutshane, kunye neempazamo zomhlaba. I-UL Listed PDUs iphinda ilandele iindlela ezifanelekileyo kuyilo, izixhobo, kunye nokuvelisa ukunciphisa umngcipheko weziphene, ukungasebenzi, okanye ukungasebenzi okunokubangela ukuphuma kombane, umonakalo wesixhobo, okanye ukulimala komsebenzisi. Ii-PDU ezidweliswe kwi-UL zikwaphethe igama lebhrendi elithembekileyo elonyusa ukuzithemba kunye nokwaneliseka kwabathengi.
CSA PDU isishwankathelo:
Igama elipheleleyo le-CSA yiCanadian Standards Association, engummiselo womgangatho ongenzi nzuzo kunye nombutho woqinisekiso okhonza eKhanada kunye nezinye iimarike zamazwe ngamazwe. Inkqubo yoqinisekiso lwe-PDU ye-CSA iquka iindidi ezifanayo zePDU kunye nezicelo kwii-UL's, kodwa kukho umahluko othile kwimigangatho kunye neenkqubo zovavanyo. Isatifikethi se-PDU se-CSA sibandakanya iimvavanyo kukhuseleko lombane, ukuhambelana kombane, kunye neemfuno zokusingqongileyo. Ukuze ube nesiqinisekiso se-CSA, i-PDU kufuneka ihambelane nayo yonke imigangatho nemimiselo efanelekileyo kwaye ihlolwe ngamaxesha athile kunye novavanyo lomgangatho.
I-CSA PDU eluncedo:
Enye yeenzuzo zee-PDU eziqinisekisiweyo ze-CSA kukuba zithobela imigangatho yaseKhanada kunye nehlabathi jikelele, ukuqinisekisa ukuhambelana kunye nokusebenzisana nezinye izixhobo kunye neenkqubo. Ii-PDU eziqinisekisiweyo ze-CSA nazo zivavanywa ngokuzimeleyo kwaye ziqinisekisiwe, zinciphisa amathuba okuba nemiba yokusebenza okanye ukungathotyelwa kwemigaqo. Ii-PDU eziqinisekisiweyo ze-CSA nazo ziza kunye newaranti kunye neenketho zenkxaso zoxolo lwengqondo kunye nokhuseleko kwiziphene okanye ukusilela.
UL kunye neCSA PDUs:
Ngelixa i-UL kunye ne-CSA PDUs zabelana ngezinto ezininzi ezifanayo kwiinkqubo zazo zesatifikethi, kukwakho umahluko onokuthi uchaphazele ukhetho lwakho lwePDU. Umzekelo, i-UL PDU inokuba neemfuno eziphezulu zovavanyo kunye neendlela ezingqongqo zovavanyo, ngelixa i-CSA PDU inokubeka ugxininiso ngakumbi ekusebenzeni kokusingqongileyo kunye nokukhutshwa kwe-electromagnetic. Ngokuxhomekeke kwiimfuno zakho ezithile kunye nezinto ozikhethayo, unokukhetha i-UL okanye i-CSA eqinisekisiweyo yePDU okanye zombini ukuhlangabezana neemfuno zakho zokuhambisa amandla.
ukuququmbela:
Imigangatho yePDU ibalulekile ekuqinisekiseni ukuhanjiswa kwamandla okukhuselekileyo nokuthembekileyo kwiindawo zanamhlanje ze-IT. I-UL kunye ne-CSA yimigangatho emibini emikhulu yePDU eMntla Melika, equka yonke imiba yokhuseleko lwePDU kunye nokusebenza. Ukukhetha i-UL- okanye i-PDU edweliswe kwi-CSA inikezela ngeenzuzo ezininzi, ezifana nokukhuselwa kwiingozi zombane, ukuthotyelwa kwemigangatho kunye nemimiselo, kunye newaranti kunye nokukhethwa kwenkxaso. Khumbula ukujonga izatifikethi kunye nemilinganiselo yee-PDUs phambi kokuba uzithenge okanye uzifake ukuthintela naziphi na iingxaki.
Ixesha lokuposa: May-17-2023
