No Building Steel

[Jennie1220]

I am suppling a new 480 service to a pump house building and I was going to install 2 ground rods for the new service. I am also installing a transformer to the building for 120 needs. There is no building steel so my question is do I just tie the waterpipe and ground rod together NEC 250.50 or do I use the waterpipe for the transformer grounding 250.104(D)(1). Or do they all get tied together?

There is also another detached building that we are suppling a 480 panel (from the first building) and another transformer for 120 needs. I am assuming that building needs its own grounding system (2 ground rods), but I had the same question about the transformer grounding.

Thank you

 

[petersonra]

what is the existing service grounded to?

the code requires that whatever qualifying grounding electrodes you have need to be bonded together into a grounding electrode system at each structure.

incidentally, take a real close look at what the code actually says about "building steel".

 

[Jennie1220]

what is the existing service grounded to?

the code requires that whatever qualifying grounding electrodes you have need to be bonded together into a grounding electrode system at each structure.

incidentally, take a real close look at what the code actually says about "building steel".

The old service didnt have any grounding at all!

 

[petersonra]

The old service didnt have any grounding at all!

is the well casing metal?

 

[Jennie1220]

is the well casing metal?

Concrete

 

[petersonra]

Concrete

I don't think I have ever heard of a well casing made of concrete pipe.

 

[readydave8]

I don't think I have ever heard of a well casing made of concrete pipe.

Bored well?

 

[petersonra]

Bored well?

I always thought they were shallow and didn't pump out much water. Why would you need 480 for such a small load?

 

[Jennie1220]

it's a pump station