槽式大跨距電纜橋架由室外進入建筑物內時，橋架向外的坡度不得小于1/100。（2）電纜橋架與用電設備交越時，其間的凈距不小于0.5m。

When the trough type long-span cable tray enters the building from the outside, the outward slope of the tray shall not be less than 1 / 100. (2) When the cable tray crosses the electrical equipment, the clear distance between them shall not be less than 0.5m.

（2）兩組電纜橋架在同一高度平行敷設時，其間凈距不小于0.6m。（4）在平行圖上繪出橋架的路由，要注明橋架起點、終點、拐彎點、分支點及升降點的坐標或定位尺寸、標高，如能繪制橋架敷設軸側圖，則對材料統計將更準確。

(2) When two groups of cable trays are laid in parallel at the same height, the clear distance between them shall not be less than 0.6m. (4) When the route of the bridge is drawn on the parallel diagram, the coordinates or positioning dimensions and elevations of the starting point, end point, turning point, branch point and lifting point of the bridge shall be indicated. If the axial side diagram of bridge laying can be drawn, the material statistics will be more accurate.

直線段：注明全長、橋架層數、標高、型號及規格。拐彎點和分支點：注明所用轉彎接板的型號及規格。升降段：注明標高變化，也可用局部大樣圖或剖面圖表示。

Straight line section: indicate the total length, number of bridge layers, elevation, model and specification. Turning point and branch point: indicate the model and specification of the turning adapter used. Lifting section: the elevation change can also be indicated by local detail drawing or section drawing.

電纜橋架廠家設備

Cable tray manufacturer's equipment

（3）橋架支撐點， 如立柱、托臂或非標準支、構架的間距、安裝方式、型號規格、標高，可同意在平面上列表說明，也可分段標出用不同的剖面圖、單線圖或大樣圖表示。

(3) The spacing, installation mode, model, specification and elevation of bridge support points, such as columns, corbels or non-standard supports and frames, can be listed on the plane, or marked in sections and represented by different section drawings, single line diagrams or detail drawings.

（4）電纜引下點位置及引下方式，一般而言，大批電纜引下可用垂直彎接板和垂直引上架，少量電纜引下可用導板或引管，注明引下方式即可。

(4) Generally speaking, a large number of cables can be led down with vertical bending plate and vertical lead-in frame, and a small number of cables can be led down with guide plate or lead pipe, indicating the lead-down method.

（5）電纜橋架宜高出地面2.2米以上，橋架頂部距頂棚或其它障礙物不應小于0.3米，橋架寬度不宜小于0.1米，橋架內橫斷面的填充率不應超過百分之50。

(5) The cable tray should be more than 2.2m above the ground, the distance from the top of the tray to the ceiling or other obstacles should not be less than 0.3m, the width of the tray should not be less than 0.1M, and the filling rate of the cross section in the tray should not exceed 50%.

（6）電纜橋架內纜線垂直敷設時，在纜線的上端和每間隔1.5米處應固定在橋架的支架上，水平敷設時， 在纜線的首、尾、轉彎及每間隔3~5米處進行固定。

(6) When the cable in the cable tray is laid vertically, it shall be fixed on the support of the cable tray at the upper end of the cable and at an interval of 1.5m. When laying horizontally, it shall be fixed at the head, tail, turn and at an interval of 3 ~ 5m.

（7）在吊頂內設置時，槽蓋開啟面應保持80毫米的垂直凈空，線槽截面利用率不應超過百分之50。

(7) When set in the ceiling, the opening surface of the slot cover shall maintain a vertical clearance of 80mm, and the utilization rate of the section of the trunking shall not exceed 50%.

（8）布放在線槽的纜線可以不綁扎，槽內纜線應順直，槽內纜線應順直，盡量不交叉，纜線不應溢出線槽，在纜線進出線槽部位， 轉彎處應綁扎固定。垂直線槽布放纜線應每間隔1.5米固定在纜線支架上。

(8) The cables laid in the trunking may not be bound. The cables in the trunking shall be straight, and the cables in the trunking shall be straight without crossing as far as possible. The cables shall not overflow the trunking. The cables shall be bound and fixed at the places where they enter and leave the trunking and at the corners. Cables laid in vertical trunking shall be fixed on the cable support at an interval of 1.5m.

（9）在水平、垂直橋架和垂直線槽中敷設線時，應對纜線進行綁扎。4對線電纜以24根為束，25對或以上主干線電纜、光纜及其它信號電纜應根據纜線的類型、纜徑、纜線芯數分束綁扎。綁扎間距不宜大于1.5米，扣間距應均勻，松緊適度。

(9) When laying wires in horizontal and vertical cable trays and vertical trunking, the cables shall be bound. 24 pairs of cables shall be used as bundles, and 25 or more pairs of trunk cables, optical cables and other signal cables shall be bundled according to the type, diameter and number of cable cores. The binding spacing shall not be greater than 1.5m, the buckle spacing shall be uniform and the tightness shall be appropriate.

（10）橋架水平敷設時，支撐間距一般為1.5-3m,垂直敷設時固定在建筑物構體上的間距宜小于2m。

(10) When the bridge is laid horizontally, the support spacing is generally 1.5-3m. When it is laid vertically, the spacing fixed on the building structure should be less than 2m.

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