Amayunithi wokusabalalisa amandla(Ama-PDU) ayingxenye ebalulekile yezikhungo zedatha zesimanje, amagumbi eziphakeli kanye nama-closets enethiwekhi, ahlinzeka ngendlela ethembekile nelula yokusabalalisa amandla kusuka emthonjeni owodwa kuya kumadivayisi amaningi.Ama-PDU eza ngezinhlobo ezahlukene, osayizi nezici, kodwa enye yezinto ezibaluleke kakhulu okufanele icatshangelwe lapho ukhetha i-PDU isitifiketi sayo sokuphepha.ENyakatho Melika, kunamazinga amabili amakhulu okuphepha e-PDU okufanele uwaqaphele: UL kanye ne-CSA.
Uhlolojikelele lwe-UL PDU:
I-UL imele i-Underwriters Laboratories, inhlangano ezimele eyaziwa emhlabeni wonke ehlola futhi iqinisekise imikhiqizo ngokuphepha nokusebenza.Uhlelo lwe-UL's PDU yesitifiketi luhlanganisa izinhlobo eziningi ze-PDU nezinhlelo zokusebenza, okuhlanganisa ama-PDU e-rack-mount, ama-PDU aphansi, ama-PDU odonga, nama-PDU abamba umoya.Isitifiketi se-PDU sika-UL sihlanganisa ukuhlolwa kokuphepha kukagesi, ukumelana nomlilo, izimo zemvelo, nezinye izindawo ezihlobene.Ukuze uthole isitifiketi se-UL, ama-PDU kufanele ahlolwe kanzima futhi ahlangabezane nezindinganiso eziqinile, okuhlanganisa i-UL 60950-1 ne-UL 60950-22.Isitifiketi se-UL sama-PDU ngokuvamile sibonisa ukuthi aphephile futhi anokwethenjelwa ekusetshenzisweni okuvamile.
Izinzuzo ze-UL PDU:
Enye yezinzuzo zama-PDU asohlwini lwe-UL ukuthi avikela ezingozini zikagesi njengokugcwala ngokweqile, amasekhethi amafushane, namaphutha asemhlabeni.Ama-PDU Asohlwini lwe-UL aphinde alandele izinqubo ezihamba phambili ekwakhiweni, okokusebenza, nasekukhiqizeni ukuze kuncishiswe ingcuphe yokulimala, ukungasebenzi kahle, noma ukungasebenzi kahle okungaholela ekunqamukeni kukagesi, ukulimala kwemishini, noma ukulimala komsebenzisi.Ama-PDU Asohlwini lwe-UL aphinde abe negama lomkhiqizo elethembekile elikhulisa ukuzethemba nokwaneliseka kwamakhasimende.
Uhlolojikelele lwe-CSA PDU:
Igama eligcwele le-CSA yi-Canadian Standards Association, okuyinhlangano engenzi nzuzo yokusetha izinga kanye nezitifiketi esebenzela i-Canada nezinye izimakethe zamazwe ngamazwe.Uhlelo lwesitifiketi se-CSA lwe-PDU luhlanganisa izinhlobo ze-PDU ezifanayo nezinhlelo zokusebenza kuma-UL's, kodwa kunomehluko othile kumazinga nezinqubo zokuhlola.Isitifiketi se-PDU se-CSA sihlanganisa ukuhlolwa kokuphepha kukagesi, ukuhambisana kozibuthe kagesi, kanye nezidingo zemvelo.Ukuze iqinisekiswe i-CSA, i-PDU kufanele ihambisane nawo wonke amazinga nemithethonqubo efanele futhi ihlolwe ngezikhathi ezithile kanye nokuhlolwa kwekhwalithi.
Izinzuzo ze-CSA PDU:
Enye yezinzuzo zama-PDU aqinisekiswe yi-CSA ukuthi athobela izindinganiso zaseCanada nezamazwe ngamazwe, aqinisekisa ukuhambisana nokusebenzisana nezinye izisetshenziswa nezinhlelo.Ama-PDU aqinisekiswe i-CSA nawo ahlolwa ngokuzimela futhi aqinisekiswe, anciphisa amathuba ezinkinga zokusebenza noma ukungathobeli imithetho.Ama-PDU aqinisekiswe yi-CSA futhi eza newaranti nezinketho zokusekela zokuthula kwengqondo nokuvikelwa kumaphutha noma ukwehluleka.
I-UL ne-CSA PDUs:
Nakuba i-UL kanye ne-CSA PDUs babelana ngokufana okuningi ezinhlelweni zabo zokunikeza izitifiketi, kukhona futhi umehluko ongathinta ukukhetha kwakho kwe-PDU.Isibonelo, i-UL PDU ingaba nezidingo eziphakeme zokuhlola kanye nemibandela yokuhlola eqinile, kuyilapho i-CSA PDU ingase igcizelele kakhulu ukusebenza kwemvelo nokukhishelwa nguzibuthe.Kuye ngezidingo zakho ezithile nokuncamelayo, ungakhetha i-UL noma i-CSA eqinisekisiwe ye-PDU noma kokubili ukuze uhlangabezane nezidingo zakho zokusabalalisa amandla.
Ekuphetheni:
Amazinga e-PDU abalulekile ekuqinisekiseni ukusatshalaliswa kwamandla okuphephile nokuthembekile ezindaweni zanamuhla ze-IT.I-UL ne-CSA kungamazinga amabili amakhulu e-PDU eNyakatho Melika, ahlanganisa zonke izici zokuphepha nokusebenza kwe-PDU.Ukukhetha i-UL- noma i-PDU esohlwini lwe-CSA kunikeza izinzuzo eziningi, njengokuvikela ezingozini zikagesi, ukuthobela izindinganiso nemithethonqubo, kanye newaranti nezinketho zokusekela.Khumbula ukuhlola izitifiketi nezilinganiso zama-PDU ngaphambi kokuwathenga noma ukuwafaka ukuze uvimbele izinkinga.
Isikhathi sokuthumela: May-17-2023
