Thread Content
The partitions in the instrument cable tray are used to separate intrinsically safe and non-intrinsically safe instrument cables. If the position of the partitions on the design drawings is unreasonable, resulting in one side being heavily packed with cables while the other side is empty, can the construction team adjust the position of the partitions according to actual needs once the cables have been laid and the partitions have been installed? Is it convenient to adjust this way?
The partition is generally welded to the bottom plate of the trough box; if adjustments are needed, the manufacturer should be informed in advance to produce it according to the requirements.
Of course, appropriate adjustments can be made; the question is how to make them, with some being qualitative in nature.
Of course, appropriate adjustments can be made; the question is how to make them, with some being qualitative in nature.
As you said, the cable trays have been installed and the cables have been laid; it’s very difficult to change the position of the partitions.
No matter how difficult it is, it can be adjusted; it’s extra work, it’s just a matter of cost
The width of the cable tray needs to be calculated based on the amount of cables, and having it at full load is itself a design flaw. Adjusting the partition itself is not appropriate. However, whether the construction party can make adjustments and how such adjustments can be made need to be specified in the design drawings or project management documents, that is, it must be clear whether on-site supplementary design is permitted.
As long as you pay, it’s no problem to lay it again. Does your company’s design not take into account the cable tray fill factor? No wonder instrument design is always underestimated by others.
Generally, no adjustments are made after installation and laying, as it’s too troublesome and difficult to do so. If one side is already full, the other side is likely not to be very empty either, so making adjustments is quite challenging. When designing, try to make the bridge wider to leave some reserved space.
Adjustments can be made with the consent of the designer.