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甘肅太陽能路燈廠家行(xing)(xing)業領(ling)域小編(bian)為(wei)您科普:路燈運行(xing)(xing)存在(zai)的安全問(wen)題和關于高(gao)桿燈的知(zhi)識
一(yi),路(lu)(lu)(lu)燈(deng)(deng)(deng)電(dian)(dian)(dian)(dian)(dian)源(yuan)只有(you)短路(lu)(lu)(lu)和(he)過載保(bao)護(hu)(hu)而沒有(you)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)護(hu)(hu),不(bu)(bu)采用(yong)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)斷路(lu)(lu)(lu)器(qi)的(de)原因(yin),關鍵是(shi)認識上走(zou)入誤區(qu),有(you)的(de)認為(wei)(wei)三相(xiang)(xiang)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)斷路(lu)(lu)(lu)器(qi)存(cun)在(zai)(zai)動作死區(qu),不(bu)(bu)能(neng)對人(ren)身(shen)觸(chu)電(dian)(dian)(dian)(dian)(dian)可(ke)靠保(bao)護(hu)(hu),不(bu)(bu)如(ru)不(bu)(bu)用(yong),有(you)的(de)認為(wei)(wei)正常漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)可(ke)能(neng)造成(cheng)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)斷路(lu)(lu)(lu)器(qi)誤動作,降(jiang)低路(lu)(lu)(lu)燈(deng)(deng)(deng)供電(dian)(dian)(dian)(dian)(dian)可(ke)靠性,有(you)的(de)認為(wei)(wei)由于路(lu)(lu)(lu)燈(deng)(deng)(deng)安裝中存(cun)在(zai)(zai)不(bu)(bu)規范現(xian)象,比如(ru)只引出路(lu)(lu)(lu)燈(deng)(deng)(deng)相(xiang)(xiang)線(xian)而從別處借用(yong)中性線(xian),導致(zhi)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)斷路(lu)(lu)(lu)器(qi)無法正常工作等(deng),其實(shi),漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)斷路(lu)(lu)(lu)器(qi)作為(wei)(wei)一(yi)種安全電(dian)(dian)(dian)(dian)(dian)器(qi),其主(zhu)要功能(neng)是(shi)提供間接(jie)(jie)接(jie)(jie)觸(chu)保(bao)護(hu)(hu),當發生(sheng)單相(xiang)(xiang)接(jie)(jie)地(di)故(gu)障(zhang)(zhang)時(shi)(shi),可(ke)降(jiang)低燈(deng)(deng)(deng)桿(gan)接(jie)(jie)觸(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya),對保(bao)護(hu)(hu)人(ren)身(shen)安全是(shi)有(you)利(li)的(de),假如(ru)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)斷路(lu)(lu)(lu)器(qi)額定漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)脫扣(kou)電(dian)(dian)(dian)(dian)(dian)流(liu)(I△n)為(wei)(wei)200mA,接(jie)(jie)地(di)電(dian)(dian)(dian)(dian)(dian)阻(zu)Rd為(wei)(wei)200Ω,則接(jie)(jie)觸(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)=Rd*IΔn=200*0.2=40V,在(zai)(zai)規定的(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)范圍(wei),以筆者(zhe)所在(zai)(zai)地(di)區(qu)為(wei)(wei)例(li),土壤電(dian)(dian)(dian)(dian)(dian)阻(zu)率平(ping)(ping)均為(wei)(wei)110Ω,單極接(jie)(jie)地(di)電(dian)(dian)(dian)(dian)(dian)阻(zu)Rd實(shi)測平(ping)(ping)均值為(wei)(wei)58Ω,若沒有(you)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)保(bao)護(hu)(hu)而發生(sheng)單相(xiang)(xiang)接(jie)(jie)地(di)故(gu)障(zhang)(zhang)時(shi)(shi),接(jie)(jie)觸(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)=Un*Rd/(R路(lu)(lu)(lu)燈(deng)(deng)(deng)廠家d+R0)=220×58/(58+4)=206V,接(jie)(jie)近(jin)相(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)壓(ya),這顯然是(shi)十(shi)分(fen)危險的(de),采用(yong)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)斷路(lu)(lu)(lu)后,還能(neng)防止因(yin)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)長時(shi)(shi)間存(cun)在(zai)(zai)而造成(cheng)電(dian)(dian)(dian)(dian)(dian)纜過熱(re),使用(yong)壽命縮短以及漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)弧電(dian)(dian)(dian)(dian)(dian)流(liu)燒損電(dian)(dian)(dian)(dian)(dian)氣設備(bei)。
二,路燈電器(qi)特別(bie)是鎮流器(qi)質量(liang)不(bu)(bu)過關,發熱嚴(yan)重(zhong),絕緣(yuan)容易被擊穿(chuan)致使(shi)燈桿帶電,一旦行(xing)人觸及,后果(guo)不(bu)(bu)堪設想。
三,斷(duan)路器(qi)未作靈敏度(du)校(xiao)核試驗,額定(ding)脫扣(kou)電(dian)流(liu)選擇(ze)過(guo)大(da),有的在選擇(ze)斷(duan)路器(qi)時(shi),只(zhi)考(kao)慮到短路保護,卻忽視過(guo)負(fu)荷保護和(he)單相末端短路靈敏度(du)校(xiao)驗,斷(duan)路器(qi)額定(ding)脫扣(kou)電(dian)流(liu)選擇(ze)過(guo)大(da),不管負(fu)荷性質如何(he),一概選定(ding)為100A甚至150A,這往往在接地短路電(dian)流(liu)很大(da),電(dian)纜發熱情況下,導致(zhi)斷(duan)路器(qi)仍不會跳(tiao),失去斷(duan)路器(qi)的作用。
四,利用電纜金(jin)屬外皮作(zuo)PE總干(gan)線(xian)(xian)工藝(yi)復雜,可靠性低,電纜金(jin)屬外皮作(zuo)PE總干(gan)線(xian)(xian)施工工藝(yi)復雜,每(mei)(mei)基路燈都要焊兩(liang)個焊點(dian),每(mei)(mei)個焊點(dian)都要剝(bo)開,打磨(mo),上錫,焊接,操作(zuo)繁瑣(suo),焊點(dian)質路燈廠(chang)家(jia)量難以保證(zheng),有如此多的(de)串聯焊點(dian),PE總干(gan)線(xian)(xian)連接的(de)可靠性可想而知(zhi),另外,電纜要做到完全防潮幾乎不可能(neng),只要潮氣(qi)在(zai)電纜內部聚集,金(jin)屬外皮生銹腐蝕就不可避免,一般情況(kuang)下,路燈低壓(ya)電纜經3-5年后,金(jin)屬外皮就會出現銹蝕斷(duan)點(dian),失(shi)去PE主干(gan)線(xian)(xian)的(de)保護(hu)作(zuo)用,這樣每(mei)(mei)只路燈雖然(ran)接地保護(hu)實際上是“各自(zi)為政”,一旦(dan)發生單相接地故障(zhang),危險電壓(ya)將會長期(qi)存在(zai)。
高桿燈:一般指15米以上(shang)鋼制錐(zhui)形燈桿和大功(gong)率組合式燈架構成的新型照明(ming)裝置,它由燈頭,內部燈具電氣,桿體(ti)及基礎部分(fen)組成。
LED高(gao)桿燈(deng)是用于(yu)公路,道(dao)路等場所的(de)(de)一種燈(deng)飾,造型美(mei)觀,具(ju)有很強的(de)(de)裝飾性(xing),燈(deng)桿相比(bi)路燈(deng)高(gao)出許多,照明面積也(ye)更大大,同(tong)時照明效(xiao)果好,光(guang)源集(ji)中,光(guang)照均勻,眩光(guang)小。
燈盤使用(yong)電(dian)動升降,操作(zuo)(zuo)方(fang)便,燈盤升至工作(zuo)(zuo)位(wei)置后,能(neng)將燈盤自動脫,掛(gua)鉤,鋼(gang)絲(si)繩卸(xie)荷,照明控(kong)(kong)制(zhi)(zhi)分有手控(kong)(kong),光控(kong)(kong),時間控(kong)(kong)制(zhi)(zhi)和微電(dian)腦控(kong)(kong)制(zhi)(zhi),路燈廠家易(yi)于控制,維修。
燈頭造型(xing)可(ke)根據用戶要求,周圍環境,照明需要具體而定(ding),內部(bu)燈具多由大功(gong)率LED泛(fan)光燈和(he)投光燈組成,桿體一般為棱錐(zhui)形獨體結構,用鋼板卷制而成,高度為15—40米,多為兩(liang)到三(san)節構成,照射半(ban)徑可(ke)達(da)40-80m。
1.燈(deng)桿(gan)為八棱(leng),十二棱(leng),十八棱(leng)錐形桿(gan)體,由(you)高強度優質鋼板(ban)經剪制,折(zhe)彎,自動焊接成形,設計大抗風能力可達60米/秒(miao),每種規(gui)格由(you)3至(zhi)(zhi)4節插接組成.配(pei)法(fa)蘭鋼底盤,直徑1米至(zhi)(zhi)1.2米,厚(hou)30mm至(zhi)(zhi)40mm。
2.功(gong)能性以(yi)框(kuang)架結構為主(zhu),也有以(yi)裝(zhuang)飾性為主(zhu)材(cai)料以(yi)鋼通,鋼管為主(zhu),燈桿,燈盤采用熱浸鋅處理。
3.電(dian)(dian)動(dong)(dong)升(sheng)(sheng)降(jiang)系統由電(dian)(dian)動(dong)(dong)馬達,卷揚(yang)機(ji),三組熱浸鍍鋅控鋼絲繩及電(dian)(dian)纜(lan)等組成,燈桿體(ti)內安裝(zhuang),升(sheng)(sheng)降(jiang)速(su)度(du)為每分(fen)鐘(zhong)3至5米。
4.導(dao)向,卸荷系統由導(dao)向輪和導(dao)向臂組成(cheng),確保燈(deng)盤(pan)在升(sheng)降過程中不會發(fa)生橫向移動(dong),保證(zheng)燈(deng)盤(pan)上升(sheng)到位時,能(neng)將(jiang)燈(deng)盤(pan)自動(dong)脫落并(bing)由掛鉤(gou)鎖定(ding)。
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