一：托臂装置完后，即可停止梯式直通桥架的装置。

1： After the bracket device is completed, the device of ladder type straight bridge can be stopped.

⑴桥架经过固定压片、托臂挡板和螺栓固定在托臂上，两个桥架之间经过衔接片和螺栓衔接，留意螺栓的螺帽应装在桥架外侧。

(1) the bridge is fixed on the bracket through the fixed pressing plate, bracket baffle and bolts. The two bridges are connected through the connecting plate and bolts. Note that the nut of the bolt should be installed outside the bridge.

⑵多层桥架装置，从上到下顺次装置。

(2) multi layer bridge device, from top to bottom.

⑶直线段每装置超越30米桥架后设置一处伸缩节，用伸缩衔接板相连。

(3) in the straight-line section, an expansion joint is set after each device exceeds 30 meters of the bridge, which is connected with an expansion joint plate.

⑷每隔20米将桥架用厂家提供的接地铜编织带与☆接地支线相连，两节桥架之间用一根接地铜编织带(4mm2，L=100mm)相连。

(4) connect the bridge with the grounding branch line with the grounding copper braid provided by the manufacturer every 20 meters, and connect the two bridges with a grounding copper braid (4mm2, l=100mm).

⑸桥架装置应结实，横平竖直，直线段走向的桥架左右偏向不大于10mm，上下偏向不大于5mm。

(5) the bridge device shall be solid, horizontal and vertical, and the left-right deviation of the bridge in the straight section shall not be greater than 10mm, and the upper and lower deviation shall not be greater than 5mm.

二：桥架转弯处经过弯通衔接，弯曲半径不应小于该处桥架上的电缆小允许弯曲半径。

2： The bending radius at the turning of the bridge shall not be less than the small allowable bending radius of the cable on the bridge.

⑴转弯处电缆桥架在装置时应在弯头两侧1m处各装置一个托臂，为避免转弯处桥架弯头倾斜,可在桥架另一侧加一个托臂加以固定;

(1) when installing the cable tray at the turn, a bracket should be installed at 1m on both sides of the elbow. In order to avoid the inclination of the cable tray elbow at the turn, a bracket can be added on the other side of the cable tray to fix it;

⑵当桥架宽度>300mm时，在非直线段中部还应增设一个支吊架。

(2) when the bridge width is >300mm, a support and hanger shall be added in the middle of the non-linear section.

⑶需求避让机电管路的部位以及廊道转角处、?楼梯坡度转折处等特殊部位，

⑶ the parts of electromechanical pipelines and the corners of corridors that need to be avoided? Special parts such as the turning point of stair slope,

⑷需求依据实践状况现场采用弯头或现场切割制造桥架，使桥架拼接契合装置要求，并在切割后的桥架侧壁依据需求配钻桥架衔接孔，

(4) according to the actual situation, elbows or on-site cutting shall be used to manufacture the bridge on site to make the bridge splicing meet the requirements of the device, and the bridge connection holes shall be drilled on the side wall of the cut bridge according to the requirements,

⑸桥架制造完成后肃清毛刺、卷边，并按要求停止防腐。

(5) after the bridge is manufactured, remove the burrs and curls, and stop anti-corrosion as required.

三：桥架装置后，在下面铺上阻燃隔板，阻燃隔板之间经过铆钉与桥架横担衔接，隔板之间涂上磷晴树脂粘接剂。竖向装置的桥架因铺设了阻燃隔板，无法应用桥架横担固定电缆，距离1米在桥架上沿宽度方向钻若干个孔，敷设电缆时可应用这些孔，用尼龙扎带绑扎固定电缆。

3： After the bridge is installed, fire-retardant diaphragms are paved below. The fire-retardant diaphragms are connected with the bridge cross arm through rivets, and the diaphragms are coated with phosphorous resin adhesive. Due to the laying of flame-retardant partitions on the bridge of the vertical device, the cross arm of the bridge cannot be used to fix the cable. Several holes can be drilled on the bridge along the width direction at a distance of 1m. These holes can be used when laying the cable, and the cable can be bound and fixed with nylon ties.

上面是桥架与托臂之间的两种衔接方式：

Above are two connection methods between bridge and bracket:

(1)程度装置：梯式桥架(没有阻燃隔板)程度装置时，普通采用梯式固定压片， 山东电缆桥架横担上有阻燃隔板，相当于槽式桥架，没有方法装置梯式固定压片，特采用托臂挡板装置，托臂挡板作用避免桥架从托臂上滑落。

(1) Degree device: when the ladder type cable tray (without fire-retardant partition) degree device is used, the ladder type fixed tablet is generally used. There is a fire-retardant partition on the cross arm of Shandong cable tray, which is equivalent to the trough type cable tray. There is no way to install the ladder type fixed tablet. The bracket baffle device is especially used. The bracket baffle is used to prevent the bridge from sliding from the bracket.

(2)竖向装置：梯式桥架竖向装置时，桥架有左右滑动和掉落的趋向，为避免桥架左右滑动和掉落，需对桥架停止限位固定，即把桥架经过连接件结实固定在托臂上.

(2) Vertical device: when the ladder bridge is installed vertically, the bridge tends to slide and fall left and right. In order to avoid sliding and falling left and right, it is necessary to stop limiting and fixing the bridge, that is, firmly fix the bridge on the bracket through the connector

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