Delta Grounding System

[osassady]

Hi

I'm trying to ground my 800 amp service, parallel. The plan show that I need #4/0 to grn rod field(delta grounding rod installation). How does it work and where do I need to put the rod?

thanks

 

[osassady]

Delta Grounding System

Hi,
I have a project, riser diagram required #4/0 to grn rod filed(delta symbal). I guess it's a delta ground system. This is something new to me. So I need 3 grd rod? and how do I bury them, in triangle shape?

Please help. Thank You.

 

[charlie b]

I am a bit confused by your description. Any chance you could post the riser diagram, or at least a hand-sketch of the symbols you are trying to describe?

 

[mgookin]

Hi,
I have a project, riser diagram required #4/0 to grn rod filed(delta symbal). I guess it's a delta ground system. This is something new to me. So I need 3 grd rod? and how do I bury them, in triangle shape?

Please help. Thank You.

Welcome to the forum.

Is there a name & phone number on the drawing? Call the guy who drew it.

 

[don_resqcapt19]

Hi

I'm trying to ground my 800 amp service, parallel. The plan show that I need #4/0 to grn rod field(delta grounding rod installation). How does it work and where do I need to put the rod?

thanks

That is beyond the requirements of the NEC, so you have to do what the plans and specs require. The code would only require a #6 to the rods. The code requires that the rods be at least 6' apart, but for the lowest ground resistance they should be at least twice their length apart.

 

[david]

Ground rods are usually vertical not horizontal (driven not buried).
Ground rods are spaced at least 6 ft. apart
Ground rods are driven at not more than a 45 deg. angle.

Most of the drawings I have reviewed the points of the triangle represent the ground rods the three points are bonded together using a grounding electrode conductor.
The conductor forms a shape of a triangle by bonding them to the three ground rods.

 

[augie47]

From what I have witnessed, I agree with david.
I see prints occasionally showing the triangular ground arrangement on all types of services.

 

[m sleem]

This thread was dicussing the same Grounding for IT system

 

[osassady]

Delta Grounding System

Thank You all, you all have been a great help.