在非(fei)金屬(shu)材(cai)(cai)料中(zhong)，纖維增強(qiang)聚酯(zhi)材(cai)(cai)料有著(zhu)優秀的抗老化(hua)(hua)(hua)性(xing)能(neng)。經過抗老化(hua)(hua)(hua)性(xing)能(neng)測試表(biao)明，使用地點不同，所處氣候帶不同，其(qi)表(biao)面最大老化(hua)(hua)(hua)厚度為20年小(xiao)于(yu)50μm。大多數箱(xiang)體的最小(xiao)厚度為5mm，小(xiao)于(yu)箱(xiang)體厚度的1%，因此對(dui)箱(xiang)體的機械性(xing)能(neng)沒(mei)有明顯(xian)的影響(xiang)。令外該公司采取了一種特殊的耐紫外線(xian)表(biao)面處理(li)工藝，更加強(qiang)化(hua)(hua)(hua)了其(qi)耐老化(hua)(hua)(hua)性(xing)能(neng)。

改進原配(pei)電(dian)(dian)箱的低(di)(di)壓(ya)電(dian)(dian)容(rong)器組(zu)的接線方(fang)式(shi)，將(jiang)其安裝位置由交流接觸(chu)器上樁頭，改成(cheng)接在配(pei)電(dian)(dian)箱低(di)(di)壓(ya)進線與計(ji)(ji)量(liang)表(biao)計(ji)(ji)之間。防止(zhi)因運(yun)行中(zhong)電(dian)(dian)容(rong)器電(dian)(dian)路發生(sheng)缺(que)相故障(zhang)或電(dian)(dian)容(rong)器損壞時，造(zao)成(cheng)計(ji)(ji)量(liang)裝置計(ji)(ji)量(liang)不準(zhun)確。此外，電(dian)(dian)容(rong)器選擇(ze)型號(hao)應為BSMJ系列產品，以保證元件質量(liang)可靠(kao)、安全運(yun)行。

1.主(zhu)母(mu)線最(zui)大額定(ding)電(dian)(dian)(dian)流(liu)(liu)(liu):主(zhu)母(mu)線最(zui)大能(neng)(neng)夠承(cheng)載的(de)(de)(de)(de)電(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)(de)(de)額定(ding)值。2.額定(ding)短(duan)時(shi)耐受電(dian)(dian)(dian)流(liu)(liu)(liu):由生產(chan)廠(chang)家給出(chu)的(de)(de)(de)(de),成(cheng)(cheng)套(tao)設(she)備(bei)中某條電(dian)(dian)(dian)路在(zai)國(guo)家標準GB7251.1-2005中8.2.3規定(ding)的(de)(de)(de)(de)試驗條件下能(neng)(neng)安全(quan)承(cheng)載的(de)(de)(de)(de)短(duan)時(shi)耐受電(dian)(dian)(dian)流(liu)(liu)(liu)方均(jun)根值。3.峰(feng)值短(duan)時(shi)耐受電(dian)(dian)(dian)流(liu)(liu)(liu):在(zai)規定(ding)試驗條件下,生產(chan)廠(chang)家規定(ding)此電(dian)(dian)(dian)路能(neng)(neng)夠圓滿(man)地承(cheng)受的(de)(de)(de)(de)峰(feng)值電(dian)(dian)(dian)流(liu)(liu)(liu)。4.外殼防(fang)護(hu)等(deng)級:IEC60529-1989標準由成(cheng)(cheng)套(tao)設(she)備(bei)提供的(de)(de)(de)(de)防(fang)止(zhi)觸(chu)及帶電(dian)(dian)(dian)部(bu)(bu)件,以(yi)及外來固(gu)體(ti)的(de)(de)(de)(de)侵入和液體(ti)的(de)(de)(de)(de)進入的(de)(de)(de)(de)等(deng)級。具體(ti)等(deng)級劃分詳見IEC60529標準。5.內(nei)部(bu)(bu)分隔方式(shi):根據IEC60529-1989標準,為保護(hu)人身安全(quan),將(jiang)開(kai)關柜(ju)(ju)獨立劃分成(cheng)(cheng)幾個隔室的(de)(de)(de)(de)不同(tong)方式(shi)。不同(tong)型號的(de)(de)(de)(de)配(pei)電(dian)(dian)(dian)柜(ju)(ju)之間的(de)(de)(de)(de)技(ji)術參(can)數(shu)都(dou)有很大不同(tong),而進口(kou)配(pei)電(dian)(dian)(dian)柜(ju)(ju)的(de)(de)(de)(de)技(ji)術參(can)數(shu)基本都(dou)優于(yu)國(guo)產(chan)配(pei)電(dian)(dian)(dian)柜(ju)(ju),但并不能(neng)(neng)認為進口(kou)配(pei)電(dian)(dian)(dian)柜(ju)(ju)就一定(ding)比國(guo)產(chan)配(pei)電(dian)(dian)(dian)柜(ju)(ju)好。

配電箱的進出線選用低壓電纜，尋甸充氣柜電纜的選擇應符合技術要求。專業充氣柜例(li)如30kVA、50kVA變(bian)壓器的(de)(de)配電(dian)箱(xiang)的(de)(de)進線(xian)(xian)使(shi)用(yong)VV22-35×4電(dian)纜(lan)(lan)，分路(lu)出線(xian)(xian)使(shi)用(yong)同規(gui)格的(de)(de)VLV22-35×4電(dian)纜(lan)(lan)；80kVA、100kVA變(bian)壓器的(de)(de)配電(dian)箱(xiang)的(de)(de)進線(xian)(xian)分別使(shi)用(yong)VV22-50×4、VV22-70×4電(dian)纜(lan)(lan)，分路(lu)出線(xian)(xian)分別使(shi)用(yong)VLV22-50×4、VLV22-70×4電(dian)纜(lan)(lan),其電(dian)纜(lan)(lan)與銅鋁接(jie)線(xian)(xian)鼻(bi)壓接(jie)后(hou)再用(yong)螺栓與配電(dian)箱(xiang)內接(jie)線(xian)(xian)樁頭(tou)連接(jie)。