Sorry if this is a repeat - I searched the forum and couldn’t find my answer.
New construction in Texas - The green insulated wire (tied to ground rod) is terminated next to the panel neutral instead of directly to the ground bus bar. Its connected electrically to the ground bar through the panel bonding screw, but it feels incorrect somehow.
IS THIS ALLOWED? NOT ALLOWED?
GRAY AREA? BAD IDEA BUT LEGAL?
Good point gwells - I went back and added TEXAS to the original post.
I’m performing a home inspection to the Texas standard looking for “the absence of or deficiencies in the grounding electrode system”.
Not a code inspection, I just want to know if its a dangerous condition.
Maybe. There are questions that need to be answered.
This panel ‘feels’ like a sub to me. Is there a disconnect outside?
Is this a manufactured home?
There are no 220 V loads?
There appears to be a lack of grounded conductors.
As asked before - where do the two bare wires on the grounding bar go?
You’re welcome, here’s the NEC reference for anyone who’s interested. 250.24(A)(1) generally states that the GEC connection can be made at any point up to where the neutral conductor terminates. The EGC bus in the photo is after that point so the GEC cannot land there unless it meets 250.24(A)(4). Since there is a green screw as the main bonding jumper the GEC terminating on the EGC bus does not meet the requirements of 250.24(A)(4) so it cannot terminate there.
250.24 Grounding Service-Supplied Alternating-Current Systems.
(A) System Grounding Connections. A premises wiring system supplied by a grounded ac service shall have a grounding electrode conductor connected to the grounded service conductor, at each service, in accordance with 250.24(A)(1) through (A)(5).
(1) General. The grounding electrode conductor connection shall be made at any accessible point from the load end of the overhead service conductors, service drop, underground service conductors, or service lateral to, including the terminal or bus to which the grounded service conductor is connected at the service disconnecting means. (4) Main Bonding Jumper as Wire or Busbar. Where the main bonding jumper specified in 250.28 is a wire or busbar and is installed from the grounded conductor terminal bar or bus to the equipment grounding terminal bar or bus in the service equipment, the grounding electrode conductor shall be permitted to be connected to the equipment grounding terminal, bar, or bus to which the main bonding jumper is connected.
It does seem strange that they’ve isolated the grounds and neutrals yet left the main bonding jumper in place. Was there a meter/main at the exterior, subpanel on the interior? If so, this installation is incorrect.
In that case, I’d say it is OK. The terminals are part of ground bus assembly. They are being used as they are intended to be used. It is a continuous bus and the connection was made at the nearest point.
Thanks for all the responses!!
I found one big issue - I incorrectly remembered the ground rod wire being stranded. Digging through my photos I find that it is one of those 2 solid copper conductors!!! (the other one goes to the gas meter bonding)
Soooo my original question is moot.
Here is a full photo, should have posted that first.