(1) when the slot type large span cable bridge enters the building outside the building, the overhead of the bridge shall not be less than 1/100.

　　(2)电缆桥架与用电设备交越时,其间的净距不小于0.5m。

　　(2) when the cable bridge is crossed with the electric equipment, the net distance between the cable bridge and the electric equipment is not less than 0.5m.

　　(3)两组电缆桥架在同一高度平行敷设时,其间净距不小于0.6m。(4)在平行图上绘出桥架的路由,要注明桥架起点、终点、拐弯点、分支点及升降点的坐标或定位尺寸、标高,如能绘制桥架敷设轴侧图,则对材料统计将更精确。

　　(3) the net distance between the two groups of cable bridges at the same height is not less than 0.6m. (4) draw the bridge's routing on parallel graph. We should specify the coordinates, location size and elevation of bridge's starting point, terminal point, turning point, branch point and lifting point. If we can draw the axle side diagram of the bridge, the material statistics will be more accurate.

　　直线段：注明全长、桥架层数、标高、型号及规格。拐弯点和分支点:注明所用转弯接板的型号及规格。

　　Straight line: full length, number of bridge frames, elevation, model and specification. Turning point and branch point: indicate the type and specification of the turning plate used.

　　(5)确定方向：根据建筑平面布置图,结合空调管线和电气管线等设置情况、方便维修,以及电缆路由的疏密来确定电缆桥架的佳路由。在室内,尽可能沿建筑物的墙、柱、梁及楼板架设,如许利用综合管廊架设时,则应在管道一侧或上方平行架设,并考虑引下线和分支线尽量避免交叉,如无其它管架借用,则需自设立(支)柱。

　　(5) determine the direction: according to the layout plan of the building, combined with the settings of the air conditioning pipeline and electrical pipeline, convenient maintenance, and the density of the cable routing, we will determine the best routing of the cable bridge. In the indoor area, it is possible to erect walls, columns, beams and floors as far as possible, so that when the utility tunnel is erected, it should be erected parallel to one side or the top side of the pipeline. The crossing line and branch line should be considered as far as possible to avoid crossing. If there is no other pipe rack to borrow, it is necessary to set up a self supporting column.

　　(6)荷载计算：计算电缆桥架主干线纵断面上单位长度的电缆重量。

　　(6) load calculation: calculate the cable weight per unit length on the longitudinal section of the main trunk line of the cable bridge.

　　(7)确定桥架的宽度：根据布放电缆条数、电缆直径及电缆的间距来确定电缆桥架的型号、规格, 托臂的长度,支 柱的长度、间距,桥架的宽度和层数。

　　(7) to determine the width of the bridge cable laying: according to the number and diameter of the cable and cable spacing to determine the type and size of the cable tray, arm length, strut length, spacing, bridge width and number.

　　(8)确定安装方式：根据场所的设置条件确定桥架的固定方式,选择悬吊式、直立式、侧壁式或是混合式,连接件和紧固件一般是配套供应的,此外,根据桥架结构选折相应的盖板。

　　(8) determine the way of installation: according to the setting conditions of the location, determine the fixed way of the bridge, choose suspended, vertical, side wall or mixed type, connecting piece and fastener are generally supplied, and select the corresponding cover according to the structure of the bridge.

　　(9)绘出电缆桥架平、剖面图,局部部位还应绘出空间图,开列材料表。

　　(9) draw the flat, section map of the cable bridge, and the local part should draw the space map and list the material table.

　　(10)电缆桥架内缆线垂直敷设时,在缆线的上端和每间隔1.5米处应固定在桥架的支架上,水平敷设时, 在缆线的首、尾、转弯及每间隔3~5米处进行固定。

　　(10) when the cable is vertically laid in the cable bridge, it should be fixed on the support of the bridge on the top end of the cable and 1.5 meters away from each interval. When it is horizontally laid, it will be fixed at the beginning, the tail, the turning and the 3~5 meters away.

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　　The company always insists on continuous management innovation and research innovation, and will win the trust and support of our customers with excellent quality and perfect after-sales service. Welcome new and old customers to come to our company for field visits and discuss cooperation.