The objective inspection of project name is to ensure quality and safety. There are things in your career that need to be examined. What are the items of cable tray?

　　1. 主要控制項目:

　　1. Main control items:

　　(1)金屬電纜橋架及其支持和金屬電纜管的介紹或推導需要接地(PE)或連接到零(筆)強,并需要遵守以下規(guī)則:金屬電纜橋架及其支持應該連接到地面(PE)或連接到零(筆)分支線不少于2;所述非鍍鋅電纜橋架之間連接板的兩端與銅芯接地線連接。地線更小允許截面積不小于4mm2。鍍鋅電纜橋架之間的連接板端頭未與地線粘結，但連接板端頭不少于鎖緊螺母或鎖緊墊圈的兩個緊固螺栓。

　　(1) The introduction or derivation of metal cable tray and its support and metal cable conduit shall be grounded (PE) or connected to zero (pen) strength, and the following rules shall be followed: the metal cable tray and its support shall be connected to the ground (PE) or to zero (pen) branch line at least 2; the two ends of the connecting plate between the non galvanized cable tray shall be connected to the copper core ground wire. The minimum allowable cross-sectional area of ground wire shall not be less than 4mm2. The end of connecting plate between galvanized cable trays is not bonded with the ground wire, but the end of connecting plate is not less than two fastening bolts of lock nut or lock washer.

　　(2)電纜敷設要防止扭轉、鎧裝變平、護套開裂和嚴格的表面劃痕等問題。

　　(2) In cable laying, problems such as torsion, flattening of armour, cracking of sheath and strict surface scratch shall be prevented.

　　2.平日名目:

　　2. Daily items:

　　(1)電纜橋架設備應符合以下規(guī)定:直線段鋼電纜橋架長度大于30m\鋁合金或玻璃電纜橋架長度大于15m且有彈性接頭;電纜橋架上建筑物的變形縫應設置補償裝置;電纜橋架的彎曲半徑不應小于電纜橋架內電纜的更小允許彎曲半徑。電纜更小允許彎曲半徑見表12.2.1-1。當不需要平面圖時，電纜橋架水平設備的支架間距為1.5-3m，直立設備的支架間距不大于2m。橋架與支撐架及橋架連接板之間的螺栓應牢固牢固，不得脫落，螺母應安裝在橋架外側。當鋁合金橋與鋼支架牢固時，采用相互絕緣的方法來防止電腐蝕。電纜橋架敷設在易燃易爆氣體管道和熱力管道下。不需要計劃時，與管道的更小凈距離按表12.2.1-2的規(guī)定執(zhí)行。設置在豎井內的橋架與火災區(qū)域內的梭口不同。它需要根據(jù)規(guī)劃進行定位，并有防火、擋火的方法。支架及預埋件焊接牢固時，焊縫飽滿。收縮螺栓擰緊后，選擇螺栓接頭，擰緊螺栓，整機完成。

　　(1) The cable tray equipment shall meet the following requirements: the length of steel cable tray in the straight section is more than 30m \ aluminum alloy or glass cable tray is more than 15m with elastic joints; the deformation joints of buildings on the cable tray shall be equipped with compensation devices; the bending radius of the cable tray shall not be less than the minimum allowable bending radius of the cable in the cable tray. The minimum allowable bending radius of cable is shown in table 12.2.1-1. When the plan is not required, the support spacing of horizontal equipment of cable tray is 1.5-3m, and that of vertical equipment is not more than 2m. The bolts between the bridge, the support frame and the bridge connecting plate shall be firm without falling off, and the nuts shall be installed on the outside of the bridge. When the aluminum alloy bridge and the steel bracket are firm, the mutual insulation method is used to prevent the electric corrosion. The cable tray is laid under the flammable and explosive gas pipeline and thermal pipeline. When no plan is required, the minimum clear distance from the pipeline shall be in accordance with table 12.2.1-2. The bridge set in the shaft is different from the shed in the fire area. It needs to be positioned according to the plan, and has methods of fire prevention and fire prevention. When the support and embedded parts are firmly welded, the weld joint shall be full. After tightening the shrinkage bolt, select the bolt joint, tighten the bolt and complete the whole machine.

　　(2)橋架內電纜敷設應定期敷設，電纜敷設應正確。在立橋上敷設的電纜間距不得大于表12.2.2規(guī)定的間距。

　　(2) The cable in the bridge shall be laid regularly, and the cable laying shall be correct. The distance between cables laid on the vertical bridge shall not be greater than that specified in table 12.2.2.

　　以上是濟南電纜橋架廠家小編為大家介紹的相關內容，想要了解更多內容，歡迎訪問網(wǎng)站：http://www.afrolucha.com

　　The above is a brief introduction of Jinan cable bridge manufacturer. If you