pvc trunking limits?

[thekingiam]

just a thought, i have been using some maxi trunking to suply cu going verticaly down the wall was wondering how far verticaly can you go with trunking before you need to support cables? also how do you judge how many cables to put in?

 

[Moses]

5 meters

 

[i=p/u]

5 meters and there will be cable factor if you want to work it out against trunking factor, but most companies just jam them in

 

[thekingiam]

phew!!! thanks guys near end of job and just had a niggle in my head about my drops not being supported at most they are about 2.5 metres.

 

[Druncanduncan]

Remember something along the lines of 45% cable capacity giving 55% free space for cable heat dissipation. Something like that!

 

[robsparky1975]

Look in the onsite guide its all in there for factors for trunking.