Sierrasparky
Senior Member
- Location
- USA
- Occupation
- Electrician ,contractor
Wanted to know if 2 ground rods would be required for a irrigation pedestal meter / combo. No ground resistance testing will probably be done.
2 Ground rods required?
- Thread starter Sierrasparky
- Start date
gadfly56
Senior Member
- Location
- New Jersey
- Occupation
- Professional Engineer, Fire & Life Safety
I assume this is a separate service? Don't have the book handy, but I believe it's test to 25 ohms or less or skip the test and drive 2 rods. I'll take "B" all day long.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Two rods are the minimum without testing for 25 ohms or less.
I take it the pedestal is customer owned and the power company is not providing it?
JAP>
ptonsparky
Tom
- Occupation
- EC - retired
Two Rods.
Sierrasparky
Senior Member
- Location
- USA
- Occupation
- Electrician ,contractor
Sierrasparky
Senior Member
- Location
- USA
- Occupation
- Electrician ,contractor
I think I answered it in the beginning. I would think that if it's a meter/main /combo it would be service. Maybe because I am used to the peoples republic of California.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Service or feeder wouldn't change anything although I've heard that some locales allow a single rod with a separate structure for a feeder. NEC still requires two unless tested.
Would an irrigation pedestal be a structure ??
How would it differ from a RV pedestal where most folks don't require rods.
(Assuming it's a feeder---- with the meter is likely service and rods are required....just covering bases )
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Good question, I missed the pedestal part and assumed it was a structure. You're correct that the service would require a GES, an irrigation pedestal just an EGC.
Fred B
Senior Member
- Location
- Upstate, NY
- Occupation
- Electrician
NEC Definition:
Structure
That which is built or constructed, other than equipment. (CMP-1)
Build something that supports the equipment? It's a structure
ptonsparky
Tom
- Occupation
- EC - retired
Irrigation pedestal here includes a 100 HP PP, pivot, and fertilizer equipment.
Two rods!!
Two rods!!
ptonsparky
Tom
- Occupation
- EC - retired
My
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Two rods based on what? Is it fed by a feeder or a branch circuit? Is it a structure?
Fred B
Senior Member
- Location
- Upstate, NY
- Occupation
- Electrician
It being a meter/disconnect it is safe to assume a service feeder.
No pictures, so is it or isn't it a structure based on NEC Definition? Most likely a structure, unless the meter/disconnect is somehow a free standing piece of equipment (Never saw one) it would be mounted to some sort of structure.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
The discussion shifted to when the irrigation pedestal is NOT fed by a service as Augie mentioned in post #7. If it's not fed by a service then are ground rods required?
ptonsparky
Tom
- Occupation
- EC - retired
Back to the age old question of when is something a structure.
Here, we build something to hold the misc equipment. It is not free standing. Could be either a Service or Feeder.
Here, we build something to hold the misc equipment. It is not free standing. Could be either a Service or Feeder.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
As a branch circuit, no. As a feeder, yes.
What do the conductors terminate in or on?
In other words, what is in the pedestal?
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Could also be a branch circuit?