Hi
In you first post you've quoted 2.3.3. from PUE chapter 2.3.
If it is so, you problem is the translation.
Could you quote the definition for a cable chute?
Hi,
Cable tray isn't a cable structure. There is a definition for the cable tray in PUE paragraph 2.1.11. See also 2.3.102-2.3.112.Where did you find conditions about cables larger than 3x16mm2? There is a table ? 2.3.1. but in the table I have found only 3x25mm2 cables.