Seek advice on thermal expansion measures for trough boxes
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According to Section 6.3.10 of GB50093, when the straight length of a cable tray exceeds 50 meters, thermal expansion compensation measures should be adopted. I was wondering what people usually do.
Since they are all installed section by section, is it still necessary to take measures against expansion?
The simplest and most practical method is to change the height of the cable tray. The principle is similar to the Π-shaped bend of pipes
The standard is to leave a gap of about 50 meters