Xaiv qhov nruab nrabTsis yog-Kev cais thiab cais tsav tsheb rau qis-Power Downlights
Hauv kev tsim thiab kev xaiv ntawm qis- lub teeb hluav taws xob qis, qhov kev xaiv ntawm tsis yog- cov tsav tsheb sib cais thiab cais tawm yog qhov kev txiav txim siab tseem ceeb uas cuam tshuam rau kev nyab xeeb, kev ua tau zoo, tus nqi, thiab daim ntawv thov tsim nyog. Kev nkag siab txog qhov sib txawv ntawm qhov tseem ceeb thiab ntsuas qhov tseem ceeb tuaj yeem pab ua kom paub kev xaiv raws li cov kev xav tau tshwj xeeb.
Tsis yog- cov neeg tsav tsheb sib cais ua haujlwm yam tsis muaj hluav taws xob sib cais ntawm cov tswv yim (lub zog tseem ceeb) thiab cov zis (LED load), txhais tau tias ob lub voj voog sib koom ua ke. Qhov kev tsim qauv yooj yim no ua rau muaj qhov me me, txo cov nqi tsim khoom, thiab kev siv hluav taws xob ntau dua -feem ntau 85-90%-vim cov khoom siv tsawg dua thiab txo lub zog poob. Txawm li cas los xij, qhov tsis muaj kev sib cais txhais tau hais tias qhov hluav taws xob ncaj qha txuas ntxiv muaj nyob nruab nrab ntawm LED module thiab mains voltage,nthuav qhia cov kev pheej hmoo ntawm kev nyab xeeb yog tias cov rwb thaiv tsev tsim nyog raug cuam tshuam ..
Cov neeg tsav tsheb sib cais, los ntawm qhov sib txawv, siv cov transformers los yog optocouplers los tsim kev sib cais ntawm lub cev ntawm cov tswv yim thiab cov khoom siv hluav taws xob. Qhov kev sib cais no tiv thaiv kev ncaj qha tam sim no ntawm lub mains thiab LED load, txhim khu kev ruaj ntseg los ntawm kev tshem tawm cov kev pheej hmoo ntawm hluav taws xob poob los ntawm lub teeb fixture. Cov qauv kev sib cais kuj tseem muaj kev tiv thaiv zoo dua tiv thaiv qhov hluav taws xob thiab hluav taws xob cuam tshuam tab sis tuaj nrog kev lag luam - tawm: qhov loj dua, cov nqi tsim khoom ntau dua, thiab kev ua haujlwm qis me ntsis (nyob ib ncig ntawm 80-85%) vim qhov poob ntawm qhov hloov pauv.
Cov kev xav tau kev nyab xeeb yog qhov kev txiav txim siab tseem ceeb. Hauv cov ntawv thov uas tib neeg kev sib cuag nrog cov khoom siv tau yog ua tau- xws li cov teeb hauv chav dej nyob ze da dej, chav ua noj hauv qab - txee teeb pom kev zoo, lossis qis - kev teeb tsa hauv qab nthab - cov tsav tsheb sib cais feem ntau yuav tsum tau ua. Cov qauv kev tswj hwm zoo li IEC 61347 lossis UL 8750 faib cov cheeb tsam muaj kev pheej hmoo siab, xav kom muaj kev sib cais los xyuas kom cov neeg siv kev nyab xeeb. Rau qhov qhuav, nyuaj-rau- mus txog qhov chaw xws li qab nthab teeb hauv chav nyob lossis chaw ua haujlwm, tsis yog- cov neeg tsav tsheb sib cais yuav txaus yog tias cov cai hauv zos tso cai.
Tus nqi thiab qhov chaw txwv kuj ua lub luag haujlwm.Tsis yog- cov neeg tsav tsheb sib cais yog 20-30% pheej yig dua thiab 30-50% me dua, ua rau lawv zoo tagnrho rau cov phiaj xwm siv nyiaj txiag lossis cov teeb ci ntsa iab uas qhov chaw teeb tsa raug txwv.Qhov kom zoo dua no yog tshwj xeeb tshaj yog muaj txiaj ntsig hauv kev tsim kho vaj tse lossis kev tsim kho vaj tsev nyob qhov twg kev tswj hwm tus nqi thiab kev tsim qauv yog qhov tseem ceeb. Cov neeg tsav tsheb sib cais, thaum tus nqi qis dua, ua pov thawj lawv cov nqi hauv kev lag luam teeb tsa lossis siab - qhov chaw nyab xeeb uas ua raws thiab ntev - kev ntseeg siab yog qhov tseem ceeb.
Kev ua tau zoo ruaj khov hauv cov xwm txheej sib txawv tseem ceeb heev. Cov neeg tsav tsheb sib cais muab kev ruaj ntseg tso zis ntau dua tam sim no thiab kev tswj hwm qhov hluav taws xob, ua kom muaj kev ua haujlwm zoo ib yam ntawm LED txawm tias lub zog hloov pauv hloov pauv. Qhov no ua rau lawv haum rau thaj chaw uas tsis muaj hluav taws xob tsis ruaj khov. Tsis yog- cov neeg tsav tsheb sib cais, txawm tias ua haujlwm tau zoo nyob rau hauv cov xwm txheej tsis tu ncua, tuaj yeem ua rau muaj kev hloov pauv me ntsis thaum lub sijhawm muaj hluav taws xob hloov pauv, uas yog siv tau rau feem ntau siv hauv tsev tab sis muaj teeb meem hauv kev siv teeb pom kev zoo.
Lub neej voj voog thiab kev saib xyuas yuav tsum tau soj ntsuam. Cov neeg tsav tsheb sib cais feem ntau muaj lub neej ntev dua (50,000-70,000 teev) vim muaj kev tiv thaiv hluav taws xob zoo, txo qhov hloov zaus hauv qhov nyuaj- mus rau- nkag mus rau kev teeb tsa. Cov neeg tsav tsheb tsis nyob ib leeg muaj lub neej luv dua (30,000-50,000 teev) tab sis yooj yim dua thiab pheej yig dua los hloov yog tias xav tau.
Hauv kev xaus, qhov kev xaiv hinges ntawm kev ntsuas kev nyab xeeb xav tau, kev siv ib puag ncig, pob nyiaj siv, thiab kev ua haujlwm. Rau siab - thaj chaw nyab xeeb, kev ua raws cai, lossis lub zog tsis ruaj khov, cov neeg tsav tsheb sib cais yog qhov kev xaiv meej. Rau tus nqi-sensitive, qhov chaw- txwv tsis pub, thiab tsawg- cov ntawv thov kev pheej hmoo, tsis yog- cov tsav tsheb sib cais muab cov kev daws teeb meem zoo, kev lag luam. Los ntawm kev ua kom cov hom tsav tsheb nrog cov kev xav tau tshwj xeeb, ib qho tuaj yeem ua kom zoo dua ob qho tib si kev ua haujlwm thiab tus nqi qis hauv - fais fab downlight systems.
