equipment ground

[papa smurf]

Where is it located in the code that a equipment grounding conductor has to be run with the feeder. A 3 phase system. 3h+1n+1g

Thanks

 

[A/A Fuel GTX]

Look at 300.3(B) or 250.32(B)

 

[Strahan]

I'm lookin at 2005 but try 215.6

 

[cpal]

anothere reference might be 250.24 (5)
Generally speaking you never use a conductor that is intenionally grounded at the service equipment to normally non current carrying metal parts once you are down stream from the main.

It is permissable per 250.142 (restrictive language) but you need to read that section very carefully.

 

[augie47]

NEC 250 Sec VI (250.110 + ) states what equipment must be grounded. 250.118 identifies "grounding conductors" which may also be your conduit and not necessarily a "seperate" conductor.