Illuminance xam ntawm hluav taws kub ceev teeb pom kev zoo
Illumination xav tau rau hluav taws kub thaum muaj xwm ceev teeb pom kev zoo fixtures:
① Qhov tsawg kawg ntawm kab rov tav illuminance nyob rau hauv av ntawm txoj kev khiav tawm yuav tsum tsis txhob qis dua 0.5 lx;
② Qhov tsawg kawg kab rov tav illuminance nyob rau hauv av nyob rau hauv cov neeg coob coob yuav tsum tsis txhob qis dua 1.0 lx;
③ Qhov tsawg kawg ntawm kab rov tav illuminance nyob rau hauv av nyob rau hauv lub stairwell yuav tsum tsis txhob qis dua 5.0 lx;
④ Qhov tsawg kawg nkaus illuminance tus nqi ntawm qhov hluav taws kub khiav teeb pom kev zoo nyob rau hauv kev khiav tawm txoj kev, stairwells, pa taws tswj pem hauv ntej chav tsev, pej xeem kev ua ub no, thiab lwm yam. nyob rau hauv pej xeem huab cua tiv thaiv tej yaam num yuav tsum tsis txhob qis dua 5.0 lx
⑤ Lub teeb pom kev kub ceev ntawm chav tswj hluav taws kub, chav tsev twj tua hluav taws, chav tsev tsim hluav taws xob rau tus kheej, chav faib hluav taws xob, chav tiv thaiv pa taws thiab chav ua pa hluav taws xob, thiab lwm chav uas tseem yuav tsum tau ua hauj lwm ib txwm thaum hluav taws tseem yuav tsum xyuas kom meej tias ib txwm teeb pom kev zoo illuminance.
Qhov nruab nrab illuminance xam mis:
Txoj kev siv coefficient: Eav=φ (ib lub luminous flux) * N (quantity) * CU (qhov chaw siv coefficient) * MK (coefficient tu) / S (chaw)
Qhov kev siv qhov chaw feem ntau yog {{0}}.3 ~ 0.4, thiab qhov kev saib xyuas feem ntau yog {0.7 ~ 0.8;
Chav tsev muaj peev xwm txoj kev: W (yuav tsum tau lub hwj chim ib cheeb tsam yuav tsum tau illuminated)=P (lub zog ntawm tag nrho cov teeb) / S (qhov chaw yuav tsum tau illuminated)
Hloov los ntawm: N (ntau lub teeb) {{0}} E (yuav tsum tau illuminance) * A (chav tsev cheeb tsam) * φ0 (luminous flux per unit cheeb tsam ib LX) * C1 (coefficient kho) * C2 ( kho coefficient) / φ (luminous flux ntawm ib lub teeb)
Feem ntau, lub teeb pom kev ntawm chav kawm yog 100Lux, tab sis qhov pom kev xav tau rau kev nyeem ntawv yog 600Lux, yog li nws yog qhov zoo dua los siv lub rooj teeb ua lub teeb pom kev hauv zos.
Nyob sab hauv tsev, lub ntsej muag ntawm lub ntsej muag tuaj yeem pom, lub teeb pom kev zoo yog 20LX, thiab lub teeb pom kev zoo rau kev ua si chess thiab phaib yog 150LX. Nws yuav siv li ntawm 250LX los nyeem ib phau ntawv tshiab, uas yog, ib qho 25-watt incandescent teeb yog 30-50 cm deb ntawm phau ntawv, thiab txog 500LX yog xav tau rau kev sau ntawv, uas yog, 40- watt incandescent teeb nyob deb ntawm Phau ntawv yog 30-50 cm, thiab nws yuav siv li 30LX saib TV. Cia li muab lub teeb me me 3-watt tawm ntawm qhov pom.
Kev tuav lub teeb pom kev zoo yog qhov txiaj ntsig zoo rau kev txhim kho kev ua haujlwm thiab kev kawm zoo; ua hauj lwm thiab kawm nyob rau hauv lub zog heev los yog tsaus nti heev teeb meem rau ob lub qhov muag.
Lub illuminance siv los ntawm tib lub teeb
1). Nws muaj feem xyuam rau hom, luminous nyhuv thiab lub teeb faib nkhaus ntawm lub teeb.
2). Nws muaj feem xyuam rau qhov dai qhov siab ntawm lub teeb. Qhov siab dua qhov ncua kev kawm ntawv, qhov ntau reflected luminous flux, thiab ntau dua qhov kev siv.
3). Nws muaj feem xyuam rau thaj tsam thiab cov duab ntawm chav tsev. Qhov loj dua qhov chaw ntawm chav tsev thiab qhov ze nws yog rau ib lub xwmfab, qhov kev siv ntau dua vim qhov ncaj qha luminous flux.
4). Nws muaj feem xyuam rau cov xim thiab kev huv ntawm phab ntsa, qab nthab thiab cov plag tsev. Qhov sib zog ntawm cov xim, qhov huv ntawm qhov chaw, ntau lub teeb flux yog reflected, thiab yog li qhov kev siv ntau dua.
