Nec 2014 section 250.64(F)(1)

[hhsting]

Attached sketch shows grounding electrode conductor going to underground water metal pipe. From their underground water metal pipe has bonding jumper to steel and bonding jumper to rods.

The steel then has bonding jumper to concrete encased electrode and has bonding jumper to different ground rods

The part steel has bonding jumper to concrete encased electrode and rods is something I am not sure is in compliance with NEC 2014 section 250.64(F)(1).

Is the attached sketch in compliance with NEC 2014 section 250.64(F)(1)?

 

[jim dungar]

Is the attached sketch in compliance with NEC 2014 section 250.64(F)(1)?

Is the primary electrode the water pipe or the CEE?
As the plan reviewer, isn't it your opinion that matters?

 

[don_resqcapt19]

250.68(C)

 

[hhsting]

Is the primary electrode the water pipe or the CEE?
As the plan reviewer, isn't it your opinion that matters?

Primary electrode? I dont follow. From main service disco their is only one GEC to underground water pipe.

Building steel has bonding jumper to CEE.

Just wanted to see all your opinion if configuration comply with NEC 2014 section 250.64(F) or not?

 

[augie47]

Code compliant as long as then conductors are sized properly and attched at the correct location.

 

[LarryFine]

Agreed. Electrodes themselves may be part of the GEC pathway.

 

[david]

just woundering

 

[augie47]

just woundering

In stings world the sketch has to expand to meet the size of the napkin on which it's being drawn

 

[hhsting]

just woundering

One on top are existing and ones on bottom are new. Who am I to question designer? Does it violate the code?

 

[hhsting]

In stings world the sketch has to expand to meet the size of the napkin on which it's being drawn

augie47 if you were where I am you would go nuts! This is some of info I am posting. I dont post every single things on these forum

 

[tom baker]

Code rules (probably some changes since 2014) on this type application are very clear. You have one GEC and the rest are bonding jumpers. Each is sized according to Section 250.66.