Since I don't know where you are I'll give you a link to the NEMA guidelines. You can purchase the info you're looking for from them or from a similar regulatory authority in your part of the world. This stuff isn't free and it's illegal to view and post on a public website. You, however, may be able to locate and view the info you need without having to buy it with a quick search like I just did.
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"Do not worry about your difficulties in Mathematics. I can assure you mine are still greater". - Albert Einstein
You will have to consult the manufacturers or have a look at this http://www.cabletrays.com/index.html. The web site gives spans, clearances, loading, etc, also what types of cables can be grouped together.
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The reports of my death are greatly exaggerated.
1200mm Cable Tray
Re: 1200mm Cable Tray
