rpo3 poc ta D9! ?''''" " Choa hoc va Doi sfing GIAI PHAP KY T H D A T CHIED SANG HIED QDA VA TItT KItM CHO lOP HQC CAO DUY HOANG Trung tam Ta van va Phat trien cong nghiep Lam Dong Theo mgt nghiSn ciru c[.]
rpo3 poc ta D9! ?'" " Choa hoc va Doi sfing GIAI PHAP KY THDAT CHIED SANG HIED QDA VA TItT KItM CHO lOP HQC CAO D U Y H O A N G Trung tam Ta van va Phat trien cong nghiep Lam Dong Theo mgt nghiSn ciru cCia PhSn vl$n Bdo hO Lao dOng thu^c T6ng LiSn do^n Lao dOng Vi$t Nam (12/2008) cho thliy, tJ' 1$ hpc sinh m^c t$t khuc xg h 80), hieu suat phit quang cao, tuoi thp dai, inh sing phii hap vai dp nhay sing cua mat nguoi, bio ve thi lye - Dp rpi dimg trung binh tren mjt bing: 497 lux - Tong cong suit tieu thy: 394 w, cudng dp d6ngdi?nli2,8A,h?s6c6ngsuitcos(|)=0,62 Nhgn xet: So v6i Tieu chuin Vi?t Nam TCVN 7114:2002 thi dp rpi ngang (297/300 lux) vi dp rpi diing (497/500 lux) deu dat tren 99% - Mgt dp cong suit tieu thy di?n li 5,25 w/m^ nho han tieu chuan cho phep (13 w/m" Dp d6ng diu li 0,32, co cai thien nhimg vin thap (do diin tich phong kha rpng sp V(M tiiu chuan vi cp dim bi-tong gay trcf nggi cho viic lip din theo thiit ke) - Ve cong suit tiiu thy li 394 w So vai h$ thdng cu li 521 w tiet kiim dupc 128 w/phong - Bien dp dien tir chdt lirgng cao: cos (p > Ket luan 0,92, tiSt kiem 66% di?n nang so vdri chan luu Hi thdng chieu sing lap dgt moi da dat sit tu thong thuang, tang quang thong, giim cong suit den, hoat dpng a dii di$n ip rpng dupc hiiu qui vi mgt inh sing, dii dp rpi chp yeu ciu hpc tgp ciia hpc sinh vi tiit kiim 170-240 V dupc diin nang tieu thy - So lupng den chieu sdng chung lap hpc: - Nhirng uu diim la: (i) Vgn hinh an toan 09 bp; den chieu sang bang: 02 bp H# th6ng chilu sing mdi lap dgt (tren-trSi) v i kit qui cSng suit ti6u thy di^n (tr«n-phdl) vuon HOC Aa JRO! "-r" Khoa hgc va Doi song dp-td-mat ty dpng ngat cd sy cd thay vi cau dao ddng, ngdt bdng tay; d cdm cd mdng che dl bdo ve (ii) Van hdnh tipn lpi va tilt kipm vi cd vi tri ddng, ngdt den thugn lpi cho hpc sinh va gido vi6n Vipc ddng, ngat dupc chia day den (moi day den) vd den bdng cd cdng tac rieng, vdo Hieu qud chieu sdng bdng lop hpc sd lupng hpc sinh ma cd the ddng, ngat timg vi tri khdng can thiet, thay vi ddng, ngat bang cau dao cho toan bp den nhu hipn - Hipn tgi trudng THCS Quang Trung cd 23 phdng hpc d khdi nha cii, neu dau tu lap dat hp thdng chilu sdng nhu tren thi dgt dupc [