At present, the cable bridge elbows used in power construction are generally well processed by the cable bridge factory before leaving the factory. However, because the construction site conditions are different, some projects need to tailor and process the cable bridge elbows on site, which requires the installation personnel to have certain basic construction knowledge.

施工現(xiàn)場(chǎng)山東電纜橋架大致分為主橋架和分支架。主橋架是由規(guī)劃院規(guī)劃，依據(jù)圖紙施工；分支架是由主橋架引到就地設(shè)備的電纜支架，沒(méi)有圖紙規(guī)劃，依據(jù)現(xiàn)場(chǎng)狀況由施工人員來(lái)規(guī)劃的。常用的彎頭品種包含水平彎頭90°、上下跳彎45°、筆直上下彎頭、水平三通等。下面就以幾個(gè)典型常用彎頭制作方法和質(zhì)量要求來(lái)談一下。

The cable bridge in the construction site is roughly divided into main bridge and sub support. The main bridge is planned by the Planning Institute and constructed according to the drawings; The sub support is the cable support led from the main bridge to the local equipment. There is no drawing planning, and it is planned by the construction personnel according to the site conditions. Common elbow varieties include horizontal elbow 90 °、 Jump up and down 45 °、 Straight up and down elbow, horizontal tee, etc. The following is a few typical common elbow manufacturing methods and quality requirements to talk about.
              

克己的山東電纜橋架彎頭、跳彎、三通的銜接處，應(yīng)先在內(nèi)側(cè)進(jìn)行點(diǎn)焊固定并把毛刺藥皮打磨潔凈，外側(cè)應(yīng)平坦，縫隙應(yīng)盡量小且鋸口處平坦規(guī)整。電纜橋架彎頭對(duì)接無(wú)錯(cuò)邊，焊接后的對(duì)口處應(yīng)打磨平坦、光亮，不該有損害電纜絕緣層的毛刺、銳邊等棱角。

For the joint of Keji cable bridge elbow, jump bend and tee, spot welding should be carried out on the inner side first, and the burr coating should be polished clean. The outer side should be flat, the gap should be as small as possible, and the saw edge should be flat and regular. The butt joint of cable tray elbow shall be free of misalignment. The butt joint after welding shall be polished flat and bright, and there shall be no burr, sharp edge and other edges and corners damaging the cable insulation layer.

在托盤式山東電纜橋架內(nèi)加鋼筋時(shí)，選用添加￠6-8MM圓鋼，內(nèi)、外側(cè)都應(yīng)補(bǔ)刷油漆。刷油漆前，應(yīng)把藥皮，焊渣整理潔凈。多層電纜橋架的克己三通及彎頭裝置完成后，折角應(yīng)在筆直的一致直線上。

When adding reinforcement in tray type cable tray, ￠ 6-8mm round steel shall be added, and the inner and outer sides shall be repainted with paint. Before painting, clean the coating and welding slag. After the completion of Keji tee and elbow device of multi-layer cable tray, the bending angle shall be in a straight and consistent line.