最新中文字幕AV无码不卡_无遮挡又爽又黄大胸免费_jizz国产精品_国产无遮挡裸体免费视频

上海大跨(kua)距(ju)電(dian)(dian)(dian)纜(lan)(lan)橋(qiao)(qiao)(qiao)架(jia)(jia)價(jia)格(ge)????? 大跨(kua)距(ju)電(dian)(dian)(dian)纜(lan)(lan)橋(qiao)(qiao)(qiao)架(jia)(jia)是(shi)由拉擠玻璃鋼(gang)型材組裝而(er)成(cheng)(cheng)，適用(yong)于電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)、控制電(dian)(dian)(dian)纜(lan)(lan)、照明電(dian)(dian)(dian)纜(lan)(lan)及配(pei)件等。與鐵制橋(qiao)(qiao)(qiao)架(jia)(jia)相比(bi)，具(ju)有使(shi)用(yong)壽(shou)命長（一(yi)(yi)(yi)般設(she)計壽(shou)命為(wei)二十(shi)年）、安(an)裝方(fang)便(bian)且成(cheng)(cheng)本低（比(bi)重僅(jin)為(wei)碳鋼(gang)的1/4，施工中無需(xu)動火，單(dan)根橋(qiao)(qiao)(qiao)架(jia)(jia)長度可達8米，甚至更長）、切割方(fang)便(bian)、不需(xu)維護等優(you)越(yue)性(xing)。安(an)裝與維護 1、 橋(qiao)(qiao)(qiao)架(jia)(jia)高度為(wei)50、100時(shi)每端(duan)各6只連(lian)接(jie)孔，高度為(wei)150、200時(shi)每端(duan)各12只連(lian)接(jie)孔。 2、 支(zhi)撐間(jian)(jian)距(ju)：支(zhi)撐間(jian)(jian)距(ju)應小于等于載(zai)荷曲線(xian)允(yun)許載(zai)荷和(he)支(zhi)撐跨(kua)距(ju)。 3、 橋(qiao)(qiao)(qiao)架(jia)(jia)寬度：選(xuan)擇電(dian)(dian)(dian)纜(lan)(lan)橋(qiao)(qiao)(qiao)架(jia)(jia)的寬度時(shi)，應留有一(yi)(yi)(yi)定(ding)的備用(yong)空位，以便(bian)為(wei)今(jin)后增添電(dian)(dian)(dian)纜(lan)(lan)用(yong)。 4、 隔(ge)開敷(fu)設(she)：當(dang)電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)和(he)控制電(dian)(dian)(dian)纜(lan)(lan)較少時(shi)，可以在同一(yi)(yi)(yi)電(dian)(dian)(dian)纜(lan)(lan)橋(qiao)(qiao)(qiao)架(jia)(jia)安(an)裝，但中間(jian)(jian)須用(yong)隔(ge)板將(jiang)電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)和(he)控制電(dian)(dian)(dian)纜(lan)(lan)隔(ge)開敷(fu)設(she)。 5、 電(dian)(dian)(dian)纜(lan)(lan)固定(ding)：匯線(xian)橋(qiao)(qiao)(qiao)架(jia)(jia)水(shui)平(ping)敷(fu)設(she)時(shi)，橋(qiao)(qiao)(qiao)架(jia)(jia)之間(jian)(jian)的連(lian)接(jie)應盡量設(she)置在跨(kua)距(ju)1/4處(chu)。水(shui)平(ping)走向的電(dian)(dian)(dian)纜(lan)(lan)每隔(ge)2米左(zuo)右固定(ding)一(yi)(yi)(yi)下，垂直走向的電(dian)(dian)(dian)纜(lan)(lan)每隔(ge)1.5米左(zuo)右固定(ding)一(yi)(yi)(yi)下。上海大跨(kua)距(ju)電(dian)(dian)(dian)纜(lan)(lan)橋(qiao)(qiao)(qiao)架(jia)(jia)價(jia)格(ge)