若不(bu)同(tong)等(deng)(deng)级的(de)(de)电(dian)(dian)缆(lan)(lan)敷设(she)在同(tong)一电(dian)(dian)缆(lan)(lan)桥(qiao)(qiao)架(jia)(jia)时(shi)(shi)，中(zhong)间应(ying)增加隔板隔离。1、当(dang)钢制直线段长度(du)(du)超(chao)过(guo)30m，铝合金电(dian)(dian)缆(lan)(lan)桥(qiao)(qiao)架(jia)(jia)超(chao)过(guo)15m时(shi)(shi).或当(dang)电(dian)(dian)缆(lan)(lan)桥(qiao)(qiao)架(jia)(jia)经过(guo)建筑伸(shen)缩(沉降)缝(feng)时(shi)(shi)应(ying)留(liu)有O-30mm补(bu)偿余量(liang).其连接(jie)宜采用伸(shen)缩连接(jie)板。2、电(dian)(dian)缆(lan)(lan)梯(ti)架(jia)(jia)、托盘(pan)宽度(du)(du)和(he)高(gao)度(du)(du)的(de)(de)选择应(ying)符合填(tian)充率(lv)的(de)(de)要(yao)求，电(dian)(dian)缆(lan)(lan)在梯(ti)架(jia)(jia)、托盘(pan)内(nei)的(de)(de)填(tian)充率(lv)一般(ban)情况下(xia)，动力电(dian)(dian)缆(lan)(lan)可(ke)取40%-50%，控(kong)制电(dian)(dian)缆(lan)(lan)可(ke)取50%。70%.且宜预留(liu)l0%一252工程(cheng)发展裕量(liang)。3、在选择电(dian)(dian)缆(lan)(lan)桥(qiao)(qiao)架(jia)(jia)的(de)(de)荷(he)(he)(he)载等(deng)(deng)级时(shi)(shi)如果电(dian)(dian)缆(lan)(lan)桥(qiao)(qiao)架(jia)(jia)的(de)(de)支(zhi)吊架(jia)(jia)的(de)(de)实际(ji)跨距不(bu)等(deng)(deng)于(yu)2m时(shi)(shi).则工作(zuo)(zuo)均布荷(he)(he)(he)载应(ying)满足(zu):式中(zhong)qG----工作(zuo)(zuo)均布荷(he)(he)(he)载，kN/m;qE----额定(ding)均布荷(he)(he)(he)载，kN/m;LG----实际(ji)跨距，m。电(dian)(dian)缆(lan)(lan)桥(qiao)(qiao)架(jia)(jia)可(ke)以根据(ju)需要(yao)进(jin)行不(bu)同(tong)形式的(de)(de)绝缘处理(li)，以提高(gao)电(dian)(dian)缆(lan)(lan)的(de)(de)安全性能。封闭(bi)式电(dian)(dian)缆(lan)(lan)桥(qiao)(qiao)架(jia)(jia)价格

大(da)跨距电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)桥架(jia)(jia)(jia)。当前(qian)大(da)跨距电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)桥架(jia)(jia)(jia)一(yi)般是由拉挤玻璃钢(gang)型材组装(zhuang)(zhuang)而成(cheng)，适(shi)用(yong)于电(dian)(dian)(dian)力电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)、控制电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)、照明(ming)电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)及配件等。与铁(tie)制桥架(jia)(jia)(jia)相(xiang)比，具(ju)(ju)有(you)使(shi)用(yong)寿命长(zhang)(zhang)(一(yi)般设计(ji)寿命为二十(shi)年)、安装(zhuang)(zhuang)方便(bian)且成(cheng)本(ben)低(比重只(zhi)为碳钢(gang)的1/4，施工中无需动火，单根桥架(jia)(jia)(jia)长(zhang)(zhang)度可达(da)8米，甚至更长(zhang)(zhang))、切(qie)割方便(bian)、不(bu)需维护等优越性。组合式电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)桥架(jia)(jia)(jia)。组合式电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)桥架(jia)(jia)(jia)是一(yi)种(zhong)新型桥架(jia)(jia)(jia)，是电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)桥架(jia)(jia)(jia)系(xi)列中的第(di)二代产(chan)品。它适(shi)用(yong)各(ge)项工程、各(ge)种(zhong)单位、各(ge)种(zhong)电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)的敷设，它具(ju)(ju)有(you)结(jie)构简单、配置灵活、安装(zhuang)(zhuang)方便(bian)、形式新颖(ying)等特点。江苏(su)封闭式电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)桥架(jia)(jia)(jia)工作原理(li)电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)桥架(jia)(jia)(jia)可以应用(yong)于高温和恶劣(lie)环境下的电(dian)(dian)(dian)缆(lan)(lan)(lan)(lan)(lan)布线(xian)。

桥(qiao)架(jia)(jia)(jia)(jia)系(xi)统设(she)计(ji)(ji)内(nei)容，桥(qiao)架(jia)(jia)(jia)(jia)系(xi)统工(gong)(gong)程设(she)计(ji)(ji)应与土建、工(gong)(gong)艺以(yi)及(ji)有(you)关(guan)专业密切(qie)相配合以(yi)确(que)定较(jiao)佳布置(zhi)，其设(she)计(ji)(ji)内(nei)容可含(han)有(you)：1、桥(qiao)架(jia)(jia)(jia)(jia)系(xi)统的(de)有(you)关(guan)剖面(mian)(mian)图(tu)。2、桥(qiao)架(jia)(jia)(jia)(jia)系(xi)统的(de)平面(mian)(mian)布置(zhi)图(tu)。3、桥(qiao)架(jia)(jia)(jia)(jia)系(xi)统所(suo)需直线(xian)段、弯(wan)通、支、吊架(jia)(jia)(jia)(jia)规格(ge)和数(shu)量的(de)明细(xi)表以(yi)及(ji)必(bi)(bi)要(yao)的(de)说明。4、有(you)特殊要(yao)求的(de)非标件(jian)技术说明或示意图(tu)。电缆(lan)桥(qiao)架(jia)(jia)(jia)(jia)的(de)安(an)(an)装(zhuang)(zhuang)，电缆(lan)桥(qiao)架(jia)(jia)(jia)(jia)施工(gong)(gong)顺序如下(xia)：进(jin)行测量定位→支吊架(jia)(jia)(jia)(jia)制作安(an)(an)装(zhuang)(zhuang)→桥(qiao)架(jia)(jia)(jia)(jia)安(an)(an)装(zhuang)(zhuang)→接(jie)地处理电缆(lan)桥(qiao)架(jia)(jia)(jia)(jia)选(xuan)型设(she)计(ji)(ji)：强(qiang)(qiang)(qiang)、弱(ruo)电线(xian)路应分槽敷设(she)，强(qiang)(qiang)(qiang)、弱(ruo)电在(zai)分线(xian)盒(he)(箱)交(jiao)叉时(shi)必(bi)(bi)须采用(yong)金属分离(li)板隔开，强(qiang)(qiang)(qiang)、弱(ruo)电的(de)导线(xian)不(bu)得在(zai)线(xian)槽内(nei)直接(jie)接(jie)触。地面(mian)(mian)线(xian)槽内(nei)的(de)各种(zhong)配线(xian)只允许(xu)在(zai)分线(xian)盒(he)出线(xian)口(kou)处接(jie)头。

如(ru)与电(dian)(dian)(dian)(dian)力(li)电(dian)(dian)(dian)(dian)缆(lan)(lan)桥(qiao)架(jia)(jia)(jia)合(he)用(yong)(yong)时(shi)(shi)(shi)(shi),应将(jiang)电(dian)(dian)(dian)(dian)力(li)电(dian)(dian)(dian)(dian)缆(lan)(lan)和弱(ruo)电(dian)(dian)(dian)(dian)电(dian)(dian)(dian)(dian)缆(lan)(lan)各直(zhi)一侧,中间(jian)(jian)采用(yong)(yong)隔板(ban)分(fen)隔。弱(ruo)电(dian)(dian)(dian)(dian)电(dian)(dian)(dian)(dian)缆(lan)(lan)与其(qi)它低电(dian)(dian)(dian)(dian)压电(dian)(dian)(dian)(dian)缆(lan)(lan)合(he)用(yong)(yong)桥(qiao)架(jia)(jia)(jia)时(shi)(shi)(shi)(shi),应严(yan)格执行选择具(ju)有外屏(ping)蔽层(ceng)的(de)(de)弱(ruo)电(dian)(dian)(dian)(dian)系统的(de)(de)弱(ruo)电(dian)(dian)(dian)(dian)电(dian)(dian)(dian)(dian)缆(lan)(lan),避免相互间(jian)(jian)的(de)(de)干扰。其(qi)它安装(zhuang)：(1)电(dian)(dian)(dian)(dian)缆(lan)(lan)桥(qiao)架(jia)(jia)(jia)由室外进(jin)入建筑(zhu)物内时(shi)(shi)(shi)(shi),桥(qiao)架(jia)(jia)(jia)向(xiang)外的(de)(de)坡度不(bu)得小于1/100。(2)电(dian)(dian)(dian)(dian)缆(lan)(lan)桥(qiao)架(jia)(jia)(jia)与用(yong)(yong)电(dian)(dian)(dian)(dian)设(she)备交越时(shi)(shi)(shi)(shi),其(qi)间(jian)(jian)的(de)(de)净(jing)距(ju)不(bu)小于0.5m。(3)两组电(dian)(dian)(dian)(dian)缆(lan)(lan)桥(qiao)架(jia)(jia)(jia)在同一高(gao)(gao)度平行敷设(she)时(shi)(shi)(shi)(shi),其(qi)间(jian)(jian)净(jing)距(ju)不(bu)小于0.6m。(4)在平行图上绘(hui)出桥(qiao)架(jia)(jia)(jia)的(de)(de)路由,要注明(ming)桥(qiao)架(jia)(jia)(jia)起点、终点、拐弯(wan)点、分(fen)支(zhi)点及升降点的(de)(de)坐标或定位尺寸、标高(gao)(gao),如(ru)能绘(hui) 制桥(qiao)架(jia)(jia)(jia)敷设(she)轴侧图,则对材料统计(ji)将(jiang)更精(jing)确。直(zhi)线段(duan):注明(ming)全长、桥(qiao)架(jia)(jia)(jia)层(ceng)数、标高(gao)(gao)、型(xing)号及规格。拐弯(wan)点和分(fen)支(zhi)点:注明(ming)所用(yong)(yong)转(zhuan)弯(wan)接板(ban)的(de)(de)型(xing)号及规格。升降段(duan):注明(ming)标高(gao)(gao)变化,也可用(yong)(yong)局(ju)部大样图或剖面图表(biao)示。电(dian)(dian)(dian)(dian)缆(lan)(lan)桥(qiao)架(jia)(jia)(jia)可以(yi)根据需要进(jin)行不(bu)同形(xing)式的(de)(de)连接处理，以(yi)方便(bian)电(dian)(dian)(dian)(dian)缆(lan)(lan)的(de)(de)安装(zhuang)和拆卸。

电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)材质选择，电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)的(de)(de)(de)材质是电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)工(gong)程设计常见的(de)(de)(de)另外一个(ge)问题。按照材料划分，电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)主(zhu)要(yao)有(you)钢(gang)(gang)(gang)制(zhi)(zhi)、玻璃(li)钢(gang)(gang)(gang)和(he)铝(lv)(lv)合(he)金几种(zhong)。玻璃(li)钢(gang)(gang)(gang)电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)的(de)(de)(de)特点是质量轻，比(bi)重(zhong)只为(wei)(wei)碳钢(gang)(gang)(gang)的(de)(de)(de)1/4;耐(nai)水性和(he)耐(nai)腐蚀(shi)性好(hao)，适合(he)化(hua)工(gong)厂(chang)。不易(yi)燃(ran)烧，难燃(ran)型玻璃(li)钢(gang)(gang)(gang)电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)的(de)(de)(de)氧(yang)指数(shu)≥32。使(shi)用寿(shou)(shou)命(ming)长，一般设计寿(shou)(shou)命(ming)为(wei)(wei)20年(nian)，但价(jia)格是钢(gang)(gang)(gang)制(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)的(de)(de)(de)3倍。施(shi)工(gong)的(de)(de)(de)优越(yue)性在(zai)于切(qie)割方便、组装灵活，安(an)(an)装无需动火(huo)，这(zhei)对于爆(bao)裂危险环境并且工(gong)程工(gong)期紧(jin)张的(de)(de)(de)化(hua)工(gong)厂(chang)工(gong)程意义(yi)尤(you)其重(zhong)大，因为(wei)(wei)在(zai)爆(bao)裂危险环境，工(gong)程动火(huo)安(an)(an)装时化(hua)工(gong)厂(chang)必须停产，经济(ji)效益必受影(ying)响。铝(lv)(lv)合(he)金电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)重(zhong)量也(ye)很轻，由(you)于铝(lv)(lv)、钢(gang)(gang)(gang)比(bi)重(zhong)不同(Al=2.7，Fe=7.86)，按重(zhong)量计算(suan)，铝(lv)(lv)钢(gang)(gang)(gang)之比(bi)约(yue)为(wei)(wei)1:3。铝(lv)(lv)合(he)金电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)外形尺寸、荷载特性均与钢(gang)(gang)(gang)质桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)基本(ben)相近。就费用而言，铝(lv)(lv)合(he)金桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)的(de)(de)(de)造价(jia)比(bi)镀锌钢(gang)(gang)(gang)制(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)要(yao)高(gao)20%，使(shi)用寿(shou)(shou)命(ming)是钢(gang)(gang)(gang)制(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)的(de)(de)(de)5倍以上。电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)可以提供电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)的(de)(de)(de)安(an)(an)全通道(dao)和(he)路径。江苏封闭(bi)式电(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)(lan)(lan)桥(qiao)(qiao)(qiao)架(jia)(jia)(jia)工(gong)作(zuo)原(yuan)理(li)

电缆桥架可(ke)以提供良好的(de)通风和散热效果，保护电缆免受过热的(de)影响。封闭式(shi)电缆桥架价格

电(dian)(dian)(dian)缆(lan)(lan)桥架(jia)结(jie)构形式(shi)及选用(yong)(yong)原则(ze)：托(tuo)盘(pan)式(shi)电(dian)(dian)(dian)缆(lan)(lan)桥架(jia)（简称(cheng)：托(tuo)盘(pan)）。托(tuo)盘(pan)式(shi)电(dian)(dian)(dian)缆(lan)(lan)桥架(jia)在工业与民(min)用(yong)(yong)建筑中(zhong)(zhong)应(ying)(ying)用(yong)(yong)较(jiao)普遍的(de)一种(zhong)。它具有重(zhong)量轻、载荷(he)大、造型美(mei)观、结(jie)构简单、安装方便(bian)等优(you)点。既适(shi)用(yong)(yong)于(yu)(yu)较(jiao)小直径的(de)强电(dian)(dian)(dian)电(dian)(dian)(dian)缆(lan)(lan)的(de)安装，也适(shi)合于(yu)(yu)弱电(dian)(dian)(dian)电(dian)(dian)(dian)缆(lan)(lan)的(de)敷(fu)(fu)设(she)。工程中(zhong)(zhong)托(tuo)盘(pan)有带(dai)盖(gai)和不(bu)(bu)带(dai)盖(gai)两种(zhong)敷(fu)(fu)设(she)方式(shi)，无(wu)盖(gai)托(tuo)盘(pan)散(san)热性能好，但(dan)落灰尘清扫麻(ma)烦，通常(chang)用(yong)(yong)于(yu)(yu)无(wu)尘或少尘场所，否则(ze)应(ying)(ying)采用(yong)(yong)带(dai)盖(gai)托(tuo)盘(pan)。托(tuo)盘(pan)选用(yong)(yong)原则(ze)如下：（1）普通电(dian)(dian)(dian)力电(dian)(dian)(dian)缆(lan)(lan)、通信电(dian)(dian)(dian)缆(lan)(lan)布线(xian)(xian)可(ke)(ke)采用(yong)(yong)托(tuo)盘(pan)布线(xian)(xian)，但(dan)无(wu)盖(gai)托(tuo)盘(pan)不(bu)(bu)允许在闷顶或吊顶内敷(fu)(fu)设(she)；（2）750℃、1.5h的(de)耐火电(dian)(dian)(dian)缆(lan)(lan)可(ke)(ke)采用(yong)(yong)有盖(gai)托(tuo)盘(pan)布线(xian)(xian)，但(dan)外壳要采取防火措(cuo)施。封(feng)闭式(shi)电(dian)(dian)(dian)缆(lan)(lan)桥架(jia)价格

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