Originally Posted By: jpeck
This post was automatically imported from our archived forum.
Am I understanding you incorrectly?
" ... that NJ for one requires the use of concrete encased electrodes on all new construction. This is beyond NEC requirements."
That is an NEC requirement.
250.50 Grounding Electrode System.
If available on the premises at each building or structure served, each item in 250.52(A)(1) through (A)(6) shall be bonded together to form the grounding electrode system. Where none of these electrodes are available, one or more of the electrodes specified in 250.52(A)(4) through (A)(7) shall be installed and used.
250.52 Grounding Electrodes.
- (A) Electrodes Permitted for Grounding.
- - (1) Metal Underground Water Pipe.
- - (2) Metal Frame of the Building or Structure.
- - (3) Concrete-Encased Electrode.
- - (4) Ground Ring.
- - (5) Rod and Pipe Electrodes.
- - (6) Plate Electrodes.
Or are you referring to something as a "Concrete-Encased Electrode" which is outside that described in 250.52(A)(3)?
I am envisioning that you may be referring to something like making a 5" hole in the ground, pouring it full of concrete, then driving a ground rod down the center (leaving it encased in 2" of concrete all around the electrode. That would be weird, and beyond the NEC. Are you referring to something like that?