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钢制电缆桥架安装作业时要注意的事项

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钢制电缆桥架安装作业时要注意的事项

发布日期:2015-04-12 00:00 来源:http://wildwoodsp.com 点击:

钢制电缆桥架安装作业时要注意的事项



(1)电缆桥架由室外进入建筑物内时,桥架向外的坡度不得小于1/100。

(1) cable bridge from the outside into the inside the building, bridge outward slope shall be not 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) cable tray with electric equipment during the crossing, the spacing of 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。

(3) two sets of cable tray at the same height in parallel, during which the spacing of not less than 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。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。升降段:注明标高变化,也可用局部大样图或剖面图表示。

(4) in parallel graph draw bridge route, to indicate the start and end point of the bridge, turning point, the branch point and the lifting point coordinates or location size, elevation, such as drawing laid axonometric drawing, the material will be more accurate statistics. The straight line segment: indicate the full-length, bridge layers, level, type and specification. The turning point and bifurcation point: specify the type and specification for turning plate. Lifting segment: indicating the elevation changes, also can use local drawing or profile representation.

(5)桥架支撑点, 如立柱、托臂或非标准支、构架的间距、安装方式、型号规格、标高,可同意在平面上列表说明,也可分段标出用不同的剖面图、单线图或大样图表示。

(5) the bridge support points, such as the column, the arm or non standard support, frame spacing, installation, size, elevation, may agree to that list in the plane, can also be segmented marked with a different profile, isometric or drawing.

(6)电缆引下点位置及引下方式,一般而言,大批电缆引下可用垂直弯接板和垂直引上架,少量电缆引下可用导板或引管,注明引下方式即可。

(6) cable under the point position and the draft mode, generally speaking, a large number of cable can be used under the condition of vertical bending connecting plate and vertical from the shelves, a small amount of cable can be used under the condition of guide or lead pipes, lead the way to indicate the next.

(7)电缆桥架(http://www.sdhangfeng.com)宜高出地面2.2米以上,桥架顶部距顶棚或其它障碍物不应小于0.3米,桥架宽度不宜小于0.1米,电缆桥架内横断面的填充率不应超过50%。

(7) cable tray should be higher than 2.2 meters above the ground, away from the bridge at the top of the ceiling or other obstacles should be not less than 0.3 meters, the bridge width of not less than 0.1 meters, cable bridge cross-section in the filling ratio should not exceed 50%.

(8)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。

(8) the vertical laying cable in the cable tray, the upper end of each cable and at intervals of 1.5 meters should be fixed in the tray bracket, horizontal laying, were fixed on the cable first, tail, turn and every 3~5 meters.

(9)在吊顶内设置时,槽盖开启面应保持80毫米的垂直净空,线槽截面利用率不应超过50%。

(9) set in the ceiling, tank cover open surface should be vertical clearance of 80 mm, the line groove cross-section utilization ratio should not exceed 50%.

(10)布放在线槽的缆线可以不绑扎,槽内缆线应顺直,槽内缆线应顺直,尽量不交叉,缆线不应溢出线槽,在缆线进出线槽部位, 转弯处应绑扎固定。垂直线槽布放缆线应每间隔1.5米固定在缆线支架上。

(10) placed online slot cable can not binding, groove cable should be straight, groove cable should be straight, try not to cross, cable should not overflow trough, cable wire groove in the import, bends lashing. Should be spaced every 1.5 m is fixed on the cable bracket cable placed vertical wire groove cloth.

(11)在水平、垂直桥架和垂直线槽中敷设线时,应对缆线进行绑扎。4对线电缆以24根为束,25对或以上主干线电缆、光缆及其它信号电缆应根据缆线的类型、缆径、缆线芯数分束绑扎。绑扎间距不宜大于1.5米,扣间距应均匀,松紧适度。

(11) the laying of lines in the horizontal, vertical and vertical line bridge slot, deal with the cable lashing. 4 of cable to 24 for the beam, for 25 or more trunk cable, optical cable and other signal cable should be based on the type of cable, cable diameter, cable core number splitting lashing. The binding distance should be less than 1.5 meters, fastener spacing should be uniform, moderate elastic.

(12)电缆桥架水平敷设时,支撑间距一般为1.5-3m,垂直敷设时固定在建筑物构体上的间距宜小于2m。

(12) the level of laying cable tray, support spacing is generally 1.5-3m, vertical laying spacing body fixed in the building structure is less than 2m.

(13)金属线槽敷设时,在下列情况下设直至架或吊架:线槽接头处;间距3m;离开线槽两端口0.5m处;转弯处。

(13) metal raceway, under any of the following circumstances under until the frame or hanger: line groove joints; spacing of 3M; leave the line groove two port 0.5m; turning.


1、钢制电缆桥架作为布线工程的一个配套项目,目前尚无专门的规范指导,个生产厂家的规格程式缺乏通用性,因此,设计选型过程应根据弱电各个系统缆显得类型、数量,合理选定适用的桥架。

(1)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最佳路由。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。

(2)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。

(3)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。

(4)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。

(5)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。

2、如与电力电缆桥架合用时,应将电力电缆和弱电电缆各直一侧,中间采用隔板分隔。

3、弱电电缆与其它低电压电缆合用桥架时,应严格执行选择具有外屏蔽层的弱电系统的弱电电缆,避免相互间的干扰。

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