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. 主要控制项目:

　　1. Main control items:

　　(1)金属电缆桥架及其支持和金属电缆管的介绍或推导需要接地(PE)或连接到零(笔)强,并需要遵守以下规则:金属电缆桥架及其支持应该连接到地面(PE)或连接到零(笔)分支线不少于2;所述非镀锌电缆桥架之间连接板的两端与铜芯接地线连接。地线更小允许截面积不小于4mm2。镀锌电缆桥架之间的连接板端头未与地线粘结，但连接板端头不少于锁紧螺母或锁紧垫圈的两个紧固螺栓。

　　(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)电缆敷设要防止扭转、铠装变平、护套开裂和严格的表面划痕等问题。

　　(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)电缆桥架设备应符合以下规定:直线段钢电缆桥架长度大于30m\铝合金或玻璃电缆桥架长度大于15m且有弹性接头;电缆桥架上建筑物的变形缝应设置补偿装置;电缆桥架的弯曲半径不应小于电缆桥架内电缆的更小允许弯曲半径。电缆更小允许弯曲半径见表12.2.1-1。当不需要平面图时，电缆桥架水平设备的支架间距为1.5-3m，直立设备的支架间距不大于2m。桥架与支撑架及桥架连接板之间的螺栓应牢固牢固，不得脱落，螺母应安装在桥架外侧。当铝合金桥与钢支架牢固时，采用相互绝缘的方法来防止电腐蚀。电缆桥架敷设在易燃易爆气体管道和热力管道下。不需要计划时，与管道的更小净距离按表12.2.1-2的规定执行。设置在竖井内的桥架与火灾区域内的梭口不同。它需要根据规划进行定位，并有防火、挡火的方法。支架及预埋件焊接牢固时，焊缝饱满。收缩螺栓拧紧后，选择螺栓接头，拧紧螺栓，整机完成。

　　(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)桥架内电缆敷设应定期敷设，电缆敷设应正确。在立桥上敷设的电缆间距不得大于表12.2.2规定的间距。

　　(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.

　　以上是济南电缆桥架厂家小编为大家介绍的相关内容，想要了解更多内容，欢迎访问网站：http://www.sdhangfeng.com

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