Fais fab faib units(PDUs) yog ib qho tseem ceeb ntawm cov chaw zov me nyuam niaj hnub no, cov chav neeg rau zaub mov thiab cov chaw kaw neeg hauv network, muab txoj hauv kev yooj yim thiab yooj yim los faib hluav taws xob los ntawm ib qho chaw mus rau ntau yam khoom siv.PDUs tuaj nyob rau hauv ntau hom, qhov ntau thiab tsawg thiab nta, tab sis ib qho ntawm cov tseem ceeb tshaj plaws los xav txog thaum xaiv PDU yog nws daim ntawv pov thawj kev nyab xeeb.Hauv North America, muaj ob lub ntsiab PDU cov qauv kev nyab xeeb uas koj yuav tsum paub txog: UL thiab CSA.
UL PDU Txheej txheem cej luam:
UL sawv cev rau Underwriters Laboratories, lub koom haum thoob ntiaj teb lees paub ywj pheej uas kuaj thiab lees paub cov khoom lag luam rau kev nyab xeeb thiab kev ua haujlwm.UL's PDU daim ntawv pov thawj qhov kev pab cuam npog ntau yam PDU hom thiab kev siv, suav nrog khib-mount PDUs, pem teb-mount PDUs, phab ntsa-mount PDUs, thiab huab cua tuav PDUs.UL's PDU daim ntawv pov thawj suav nrog kev sim hauv hluav taws xob kev nyab xeeb, hluav taws kub tsis kam, ib puag ncig, thiab lwm yam.Yuav kom tau txais daim ntawv pov thawj UL, PDUs yuav tsum tau kuaj xyuas nruj thiab ua tau raws li cov qauv nruj, suav nrog UL 60950-1 thiab UL 60950-22.UL daim ntawv pov thawj rau PDUs feem ntau qhia tias lawv muaj kev nyab xeeb thiab txhim khu kev qha rau kev siv dav dav.
UL PDU qhov zoo:
Ib qho ntawm qhov zoo ntawm UL-listed PDUs yog tias lawv tiv thaiv hluav taws xob muaj xwm txheej xws li overloads, luv circuits, thiab av txhaum.UL Listed PDUs kuj ua raws li cov kev coj ua zoo tshaj plaws hauv kev tsim, cov khoom siv, thiab kev tsim khoom kom txo tau qhov kev pheej hmoo ntawm qhov tsis xws luag, kev ua haujlwm tsis zoo, lossis kev ua haujlwm tsis zoo uas tuaj yeem ua rau muaj hluav taws xob, khoom siv puas tsuaj, lossis kev raug mob ntawm cov neeg siv.UL Sau npe PDUs kuj muaj lub npe ntseeg siab uas ua rau cov neeg siv khoom muaj kev ntseeg siab thiab txaus siab.
CSA PDU txheej txheem cej luam:
Lub npe tag nrho ntawm CSA yog Canadian Standards Association, uas yog ib lub koom haum tsis muaj txiaj ntsig thiab muab ntawv pov thawj pabcuam rau Canada thiab lwm lub khw thoob ntiaj teb.CSA's PDU daim ntawv pov thawj qhov kev pab cuam npog cov PDU zoo sib xws thiab cov ntawv thov rau UL's, tab sis muaj qee qhov sib txawv ntawm cov qauv thiab cov txheej txheem kuaj.CSA's PDU daim ntawv pov thawj suav nrog kev ntsuas hluav taws xob kev nyab xeeb, electromagnetic compatibility, thiab ib puag ncig yuav tsum tau ua.Yuav kom CSA tau ntawv pov thawj, PDU yuav tsum ua raws li tag nrho cov qauv thiab cov kev cai thiab raug soj ntsuam raws sij hawm thiab kev xeem zoo.
CSA PDU Qhov Zoo:
Ib qho ntawm qhov zoo ntawm CSA-certified PDUs yog tias lawv ua raws li Canadian thiab thoob ntiaj teb cov qauv, ua kom muaj kev sib raug zoo thiab kev cuam tshuam nrog lwm yam khoom siv thiab cov tshuab.CSA-certified PDUs kuj tau kuaj xyuas tus kheej thiab txheeb xyuas, txo qhov muaj feem cuam tshuam txog kev ua haujlwm lossis tsis ua raws li cov cai.CSA-certified PDUs kuj tuaj nrog warranty thiab txhawb kev xaiv rau kev thaj yeeb ntawm lub siab thiab kev tiv thaiv tsis xws luag los yog tsis ua hauj lwm.
UL thiab CSA PDUs:
Thaum UL thiab CSA PDUs sib koom ntau qhov sib xws hauv lawv cov ntawv pov thawj, kuj tseem muaj qee qhov sib txawv uas yuav cuam tshuam rau koj xaiv PDU.Piv txwv li, UL PDU tej zaum yuav muaj kev ntsuam xyuas ntau dua thiab cov kev ntsuam xyuas nruj dua, thaum CSA PDU tuaj yeem ua rau muaj kev cuam tshuam ntau dua rau kev ua haujlwm ib puag ncig thiab hluav taws xob emissions.Nyob ntawm koj qhov kev xav tau tshwj xeeb thiab kev nyiam, koj tuaj yeem xaiv UL lossis CSA ntawv pov thawj PDUs lossis ob qho tib si kom ua tau raws li koj cov kev xav tau kev faib hluav taws xob.
nyob rau hauv xaus:
PDU cov qauv yog qhov tseem ceeb rau kev ua kom muaj kev nyab xeeb thiab txhim khu kev qha hluav taws xob hauv IT ib puag ncig niaj hnub no.UL thiab CSA yog ob tus qauv PDU loj hauv North America, suav nrog txhua yam ntawm PDU kev nyab xeeb thiab kev ua haujlwm.Xaiv UL- lossis CSA- npe PDU muaj ntau yam txiaj ntsig, xws li kev tiv thaiv hluav taws xob muaj kev phom sij, ua raws li cov qauv thiab cov cai, thiab kev tiv thaiv thiab kev txhawb nqa.Nco ntsoov xyuas cov ntawv pov thawj thiab kev ntaus nqi ntawm PDUs ua ntej yuav khoom lossis txhim kho lawv kom tsis txhob muaj teeb meem.
Post lub sij hawm: May-17-2023
