如(ru)何選購家庭(ting)光(guang)伏發(fa)電(dian)(dian)(dian)設備：。走線(xian)好(hao)的(de)電(dian)(dian)(dian)站，所有線(xian)纜都會用PVC管包裹(guo)起(qi)來，很少看到露在(zai)外的(de)電(dian)(dian)(dian)線(xian)。即使是(shi)板子之間串(chuan)聯，必須要露的(de)部分也是(shi)放(fang)到C型(xing)鋼槽內，并且(qie)用扎帶扎緊。公(gong)母頭光(guang)伏連接器，也叫(jiao)公(gong)母頭，是(shi)電(dian)(dian)(dian)站中(zhong)成本低，卻可能(neng)(neng)影響發(fa)電(dian)(dian)(dian)的(de)小東西。光(guang)伏公(gong)母頭具有防水、防曬、防腐蝕等功能(neng)(neng)。質(zhi)量好(hao)壞難以用肉眼看出來，但是(shi)有個很簡單的(de)判(pan)斷好(hao)壞的(de)方(fang)法，用力拉扣(kou)在(zai)一起(qi)的(de)公(gong)母頭，如(ru)果電(dian)(dian)(dian)線(xian)脫(tuo)落或(huo)者公(gong)母頭脫(tuo)扣(kou)，說明質(zhi)量不合格。

光(guang)伏(fu)發電(dian)產(chan)(chan)(chan)業(ye)鏈(lian)從上游到下(xia)游，主(zhu)要(yao)包括(kuo)的(de)(de)(de)產(chan)(chan)(chan)業(ye)鏈(lian)條(tiao)包括(kuo)多晶硅、硅片(pian)(pian)、電(dian)池(chi)片(pian)(pian)以(yi)及電(dian)池(chi)組件。在產(chan)(chan)(chan)業(ye)鏈(lian)中(zhong)，從多晶硅到電(dian)池(chi)組件，生(sheng)產(chan)(chan)(chan)的(de)(de)(de)技術門檻越來越低，相(xiang)應地(di)，公司數量分布也(ye)越來越多。因此，整個光(guang)伏(fu)產(chan)(chan)(chan)業(ye)鏈(lian)的(de)(de)(de)利(li)(li)潤主(zhu)要(yao)集中(zhong)在上游的(de)(de)(de)多晶硅生(sheng)產(chan)(chan)(chan)環節，上游企業(ye)的(de)(de)(de)盈利(li)(li)能力明顯優于下(xia)游。目前，中(zhong)國大陸多晶硅生(sheng)產(chan)(chan)(chan)獲取的(de)(de)(de)利(li)(li)潤在終電(dian)池(chi)組件產(chan)(chan)(chan)品(pin)利(li)(li)潤總額中(zhong)的(de)(de)(de)比(bi)例(li)較高，約達到52%；電(dian)池(chi)組件生(sheng)產(chan)(chan)(chan)的(de)(de)(de)利(li)(li)潤占(zhan)比(bi)約為(wei)18%；而(er)電(dian)池(chi)片(pian)(pian)和硅片(pian)(pian)生(sheng)產(chan)(chan)(chan)的(de)(de)(de)利(li)(li)潤占(zhan)比(bi)分別約為(wei)17%和13%。

近年來光(guang)伏(fu)在我(wo)國呈(cheng)現(xian)出”井噴式(shi)“的(de)(de)(de)發展形(xing)勢(shi)，越來越多的(de)(de)(de)家庭選(xuan)擇(ze)光(guang)伏(fu)發電(dian)(dian)(dian)作為家庭項目(mu)，而一套光(guang)伏(fu)發電(dian)(dian)(dian)系(xi)統主要(yao)包括光(guang)伏(fu)組件、逆變器和各種電(dian)(dian)(dian)線(xian)以及電(dian)(dian)(dian)表和監控裝置，一旦設備(bei)質量(liang)(liang)(liang)不(bu)好，不(bu)但會(hui)影響自身用電(dian)(dian)(dian)安(an)全，還(huan)可能對其他用戶造(zao)成影響。建(jian)議(yi)大家購買時選(xuan)擇(ze)正規、有(you)的(de)(de)(de)光(guang)伏(fu)組件及相關設備(bei)，以避免。如(ru)何選(xuan)購家庭光(guang)伏(fu)發電(dian)(dian)(dian)設備(bei)：首先，看(kan)支(zhi)架材質。光(guang)伏(fu)支(zhi)架一般要(yao)求是(shi)(shi)鍍鋅C型鋼或(huo)鋁型材。如(ru)果(guo)是(shi)(shi)角(jiao)鋼或(huo)者方(fang)其次，看(kan)支(zhi)架傾(qing)斜角(jiao)。每(mei)個地(di)區都(dou)有(you)一個合(he)適(shi)的(de)(de)(de)傾(qing)斜角(jiao)度(du)。大于或(huo)者小(xiao)于這個角(jiao)度(du)發電(dian)(dian)(dian)都(dou)受影響。絕大多數安(an)裝商不(bu)會(hui)認真(zhen)調節合(he)適(shi)傾(qing)角(jiao)。拿個小(xiao)學生用的(de)(de)(de)傾(qing)角(jiao)測量(liang)(liang)(liang)尺(chi)就可以測出是(shi)(shi)不(bu)是(shi)(shi)合(he)適(shi)角(jiao)度(du)。之后(hou)，光(guang)伏(fu)發電(dian)(dian)(dian)企業，要(yao)看(kan)支(zhi)架美觀度(du)。高質量(liang)(liang)(liang)的(de)(de)(de)電(dian)(dian)(dian)站，支(zhi)架安(an)裝橫平豎直，外(wai)觀整潔(jie)大方(fang)。施工質量(liang)(liang)(liang)差的(de)(de)(de)電(dian)(dian)(dian)站，歪(wai)歪(wai)扭(niu)扭(niu)，甚至是(shi)(shi)組件呈(cheng)現(xian)波浪形(xing)，嚴(yan)重影響發電(dian)(dian)(dian)。