Multiple wire (3C) in a cable tray with ground conductor separated.

[Julio Cesar]

Hi, I'm a new user from Mexico, I appreciate too much to all the people that help to dissipate de doubts.

it is possible to put a multiple wire (3 conductors in a cable) in a cable tray of 3 phase motor and for the ground conductor put a single conductor beside the multiple wire?
there is a rule that mentions that I can do this?


Thanks!

 

[necGuru]

no my friend, I don't think you can do that. See

250.122(F)(2)

250.134

2017 NEC

 

[Adamjamma]

believe it is the same code sections in the IEC but do not have a recent copy of it handy. Mexico was using the IEC, depending on where you are you should be equevelant to 2008 or 2011 NEC if I recall... been a very long time since I did any stuff below Tijuana, but they were always 3 code cycles behind current NEC...