1.做45°+45°的平90°弯：取电缆桥架高乘以0.4所得的值W， 在需求处绘制中心线后往两边各自量出W成三角形、再割开所切的线、弯折即成

1. Make a 45 °+45 ° flat 90 ° bend: Take the value W obtained by multiplying the height of the cable tray by 0.4, draw the center line at the required location, measure W on both sides to form a triangle, then cut the cut line and bend it

2. 取桥架宽度乘以0.4所得的值W，在需求处绘制中心线后往两边各自量出W成三角形、再割开所切的线、弯折即成。

2. Take the value W obtained by multiplying the width of the bridge by 0.4, draw the centerline at the required location, measure W on both sides to form a triangle, then cut the cut line and bend it.

3. 取桥架宽度乘以0.4所得的值W、 在需求处绘制中心线后往两边各自量出W成三角形、再割开所切的线、弯折即成。

3. Take the value W obtained by multiplying the width of the bridge by 0.4, draw the centerline at the required location, measure W on both sides to form a triangle, then cut the cut line and bend it.

以上就是桥架90°的做法，综合考虑线缆的铺设，桥架90°弯务必做两个45°弯。沿粗线条用切割机割开桥架，用手枪钻打孔螺栓固定，不用电焊。做好后用机器将毛刺磨掉。该图电缆桥架以200*100加以分析，其它的规格按图控制。

The above is the method of using a 90 ° cable tray. Taking into account the laying of cables, two 45 ° bends must be made for the 90 ° bend of the cable tray. Cut the bridge frame along the rough line with a cutting machine, use a pistol drill to drill holes and fix them with bolts, without the need for welding. After completion, use a machine to grind off the burrs. The cable tray in this diagram is analyzed as 200 * 100, and other specifications are controlled according to the diagram.