其(qi)中主要是對(dui)光(guang)(guang)的(de)遮擋(dang)作用(yong)，影(ying)響(xiang)光(guang)(guang)伏(fu)電(dian)池(chi)(chi)板(ban)(ban)對(dui)光(guang)(guang)的(de)吸(xi)收，上海太陽能(neng)組件(jian)，從而影(ying)響(xiang)光(guang)(guang)伏(fu)發電(dian)效(xiao)率(lv)。灰(hui)塵沉積在電(dian)池(chi)(chi)板(ban)(ban)組件(jian)受(shou)光(guang)(guang)面，首先會使電(dian)池(chi)(chi)板(ban)(ban)表面透光(guang)(guang)率(lv)下降;其(qi)次(ci)會使部分光(guang)(guang)線的(de)入射角度發生改變，造成光(guang)(guang)線在玻璃(li)蓋(gai)板(ban)(ban)中不(bu)均(jun)勻傳播。有研(yan)究顯示(shi)在相同(tong)條件(jian)下，清潔的(de)電(dian)池(chi)(chi)板(ban)(ban)組件(jian)與積灰(hui)組件(jian)相比，光(guang)(guang)伏(fu)組件(jian)太陽能(neng)，其(qi)輸出(chu)(chu)功率(lv)要高出(chu)(chu)至少5%，且積灰(hui)量(liang)越高，組件(jian)輸出(chu)(chu)性能(neng)下降越大(da)。

光伏發(fa)電(dian)(dian)(dian)中(zhong)半(ban)片(pian)(pian)光伏組(zu)(zu)件(jian)(jian)的(de)優(you)勢(shi)關于封(feng)裝(zhuang)技術，半(ban)片(pian)(pian)電(dian)(dian)(dian)池(chi)組(zu)(zu)件(jian)(jian)與常規組(zu)(zu)件(jian)(jian)相同(tong)，均采(cai)(cai)用鋼化玻璃、EVA和背(bei)板(ban)進(jin)行封(feng)裝(zhuang)。而接(jie)線盒會有所不同(tong)，太(tai)陽能(neng)組(zu)(zu)件(jian)(jian)生產，一般采(cai)(cai)用三分體接(jie)線盒。在工藝(yi)上(shang)(shang)，半(ban)片(pian)(pian)組(zu)(zu)件(jian)(jian)工藝(yi)變更簡單，由于電(dian)(dian)(dian)池(chi)片(pian)(pian)數量(liang)增(zeng)加一倍，電(dian)(dian)(dian)池(chi)串聯焊(han)接(jie)的(de)時間也(ye)會增(zeng)加一倍，難(nan)點是匯流帶引出線從組(zu)(zu)件(jian)(jian)背(bei)面中(zhong)間引出，而匯流帶焊(han)接(jie)自動化在一定程(cheng)度上(shang)(shang)也(ye)促(cu)進(jin)了該(gai)半(ban)片(pian)(pian)電(dian)(dian)(dian)池(chi)組(zu)(zu)件(jian)(jian)的(de)快速(su)發(fa)展。

電池(chi)組(zu)(zu)件(jian)(jian)(jian)的(de)(de)(de)制作流程(cheng)高壓(ya)測(ce)(ce)試(shi)(shi)高壓(ya)測(ce)(ce)試(shi)(shi)是(shi)(shi)指在(zai)(zai)組(zu)(zu)件(jian)(jian)(jian)邊(bian)框和電極引線間施加(jia)一定的(de)(de)(de)電壓(ya)，測(ce)(ce)試(shi)(shi)組(zu)(zu)件(jian)(jian)(jian)的(de)(de)(de)耐壓(ya)性和絕緣強度，以保證組(zu)(zu)件(jian)(jian)(jian)在(zai)(zai)惡劣的(de)(de)(de)自然條件(jian)(jian)(jian)(雷(lei)擊(ji)等)下不被損壞(huai)。組(zu)(zu)件(jian)(jian)(jian)測(ce)(ce)試(shi)(shi)測(ce)(ce)試(shi)(shi)的(de)(de)(de)目的(de)(de)(de)是(shi)(shi)對電池(chi)的(de)(de)(de)輸(shu)出功率進行標定，太(tai)陽能組(zu)(zu)件(jian)(jian)(jian)工廠(chang)，測(ce)(ce)試(shi)(shi)其(qi)輸(shu)出特性，確定組(zu)(zu)件(jian)(jian)(jian)的(de)(de)(de)質量等級。主要就是(shi)(shi)模擬太(tai)陽光的(de)(de)(de)測(ce)(ce)試(shi)(shi)(STC)，一般(ban)一塊電池(chi)板所需的(de)(de)(de)測(ce)(ce)試(shi)(shi)時間在(zai)(zai)7-8秒(miao)左右(you)。