Agricultural/Farm Bonding

[Holdon]

We have 2 600A MB 3R panels. Each panel is fed from a CT cabinet with parallel 350. The panels are located between 2 buildings. Basically standalone. Being a farm there is no access to any type of metal underground piping to bond the (neutral) grounded conductor.
In this situation what did you do to properly bond the grounded conductor (neutral)?

 

[augie47]

Normally just ground rods but if livestock is involved a review of Art 547 would be in order as there are special requirements for bonding & grounding.

 

[kwired]

We have 2 600A MB 3R panels. Each panel is fed from a CT cabinet with parallel 350. The panels are located between 2 buildings. Basically standalone. Being a farm there is no access to any type of metal underground piping to bond the (neutral) grounded conductor.
In this situation what did you do to properly bond the grounded conductor (neutral)?

Ground rods is sufficient. Each building will need it's own GEC which very possibly will be a CEE if new construction. If no CEE is present ground rods there as well is the simple choice and meets code requirements. If you want lower resistance from your electrode for some reason you have all of items in 250.52 as possibilities

 

[kwired]

Normally just ground rods but if livestock is involved a review of Art 547 would be in order as there are special requirements for bonding & grounding.

547 likely doesn't matter much at the two disconnects mentioned, unless they would be within an outside livestock pen, which seems like a bad idea to me.