Professional Cable Tray Manufacturer

Shandong Hongfeng Electric Group Co., Ltd.

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What are the standard requirements for cable tray rungs? Refer to the 2023 bridge frame standard

Release time:

2023-12-11

Ladder bridge is generally composed of side plate, rung, cover plate and connecting plate

Ladder bridge is generally composed of side plate, rung, cover plate and connecting plate, the crosspole is fixed on both sides of the side plate by welding, and the side plate plus rung becomes the main structure of the bridge. the original bridge rung is produced by the bridge manufacturer, but now it is directly purchased by the rung parts manufacturer. JB/T 10216-2013 electronically controlled distribution Cable tray supplier standard (hereinafter referred to as the 2013 standard) made relevant provisions for the horizontal standard requirements.
The following Beijing Beijing Weiye cable editor will give you a specific introduction: the distance between standard 1 rung and rung should not be greater than 300mm, no matter how wide the distance is, it will not be able to meet the safety load standard requirements of the bridge tray, with reference to the 2013 bridge standard, a 2-meter ladder bridge if the height is 100mm, then the standard load per meter is 1000N, if the height is 200mm, then the standard load per meter is 3100N.
The thickness of the standard 2 bridge rung should be the same as the thickness of the side of the bridge. For example, if the thickness standard of the side plate of the bridge is 1.5mm, then the thickness standard of the bridge rung should also be 1.5mm, of course, you can also choose the 2.0mm thickness grade. Cable tray manufacturers seldom use a thicker rung in terms of cost.
The width of the rung of standard 3 bridge is generally 40mm, and the contact width between the cable laid on the ladder bridge and the rung should not be less than 25mm, which is the requirement of the 2013 standard on the contact area, if the contact area is too small, it will lead to excessive load on a single rung of the bridge, resulting in excessive deflection of the rung and bending deformation, and the rung will fall if the welding is not good.

Keywords：

How is the cable tray deflection standard defined and what is the calculation formula?

What are the national standards for cable tray and the thickness deviation of these standards

How is the cable tray deflection standard defined and what is the calculation formula?

What are the national standards for cable tray and the thickness deviation of these standards