Failed service inspection

Status
Not open for further replies.
F

Frank77

Member
Location
Lake Bluff il
Hi everyone. I had an inspection done on a 200amp overhead service yesterday and as stated I failed because I didn't have a continuous ground wire going from my grounding bushing inside the panel to the meter and from the meter to my ground rod. I always install my grounding bushing but I land each one separately in the panel and in the meter. He also wrote me up on having a #6 going to my ground rod, he wants me to change it to a #4. After going back and forth on the ground rod wire size he pulls out the approved stamped plan that shows #4. its not a big deal to change the #6 to #4 but I couldn't find in the code book where it says I need to have a continuous ground wire from bushing to bushing . This village follows the city of Chicago electrical code . Any help is much appreciated..
 
Frank77 said:
Hi everyone. I had an inspection done on a 200amp overhead service yesterday and as stated I failed because I didn't have a continuous ground wire going from my grounding bushing inside the panel to the meter and from the meter to my ground rod. I always install my grounding bushing but I land each one separately in the panel and in the meter. He also wrote me up on having a #6 going to my ground rod, he wants me to change it to a #4. After going back and forth on the ground rod wire size he pulls out the approved stamped plan that shows #4. its not a big deal to change the #6 to #4 but I couldn't find in the code book where it says I need to have a continuous ground wire from bushing to bushing . This village follows the city of Chicago electrical code . Any help is much appreciated..
Click to expand...
If he is enforcing plans then he is right on the conductor size - you didn't follow the design even though #6 is NEC compliant.

Unless there is amendments in Chicago code, the intent of bonding bushing is to ensure the metallic service raceway is bonded. One connection to either end of the raceway is sufficient to accomplish that. It doesn't even need to be a bonding bushing, it just can't be bonded via standard locknuts. This only applies to raceways containing service conductors. If one end were threaded into an integral or bolt on hub, that would be acceptable, "grounding locknut", would be acceptable as long as it is not in a concentric/eccentric KO, a "pipe bonding clamp" on the exterior would also be acceptable.
 
Welcome to the forum.

Frank77 said:
Hi everyone. I had an inspection done on a 200amp overhead service yesterday and as stated I failed because I didn't have a continuous ground wire going from my grounding bushing inside the panel to the meter and from the meter to my ground rod. I always install my grounding bushing but I land each one separately in the panel and in the meter. He also wrote me up on having a #6 going to my ground rod, he wants me to change it to a #4. After going back and forth on the ground rod wire size he pulls out the approved stamped plan that shows #4. its not a big deal to change the #6 to #4 but I couldn't find in the code book where it says I need to have a continuous ground wire from bushing to bushing . This village follows the city of Chicago electrical code . Any help is much appreciated..
Click to expand...

That, imo, is the kicker (the bolded part). eta: re: the GEC, not sure about needing continuous run.
 
Frank77 said:
but I couldn't find in the code book where it says I need to have a continuous ground wire from bushing to bushing .QUOTE]


Look Here however the main bonding jumper does not have to be continuous between the bushings afaik

250.24(B) Main Bonding Jumper. For a grounded system, an unspliced
main bonding jumper shall be used to connect the
equipment grounding conductor(s) and the service-disconnect
enclosure to the grounded conductor within the enclosure for
each service disconnect in accordance with 250.28.
Click to expand...
Click to expand...
 
Dennis Alwon said:
...
Look Here however the main bonding jumper does not have to be continuous between the bushings afaik
Click to expand...
I agree. But not because of 250.24(B). The grounded conductor is all that is required between meter and service disconnecting means. Bushing jumper gets connected to grounded conductor in the enclosure they are in or to the ground bus if it's in the service disconnecting means. The main bonding jumper may provide a low impedance path. But it required to be unspliced has nothing to do with running, or rather not running an unspliced bonding jumper through both bushings
 
The bonding jumper to the service raceway is not the "main bonding jumper". This bond can be done via "bonding locknuts" if not impaired by reducing washers or concentric/eccentric KO's, etc, or an integral or bolt on hub and no "wire bonding jumper" is needed.

see 250.92.

The main bonding jumper and the grounding electrode conductor are the only things that must be "unspliced" as a general rule.
 
Status
Not open for further replies.
Top