Article 250.64 (D) Multiple Disconnecting Means Seperate Enclosures

[Bigbri0104]

Sorry for all the confusion LOL!!
Originally the post was regarding where the GEC was terminated. The electrical sub code official requested to install "Grounding Conductors" from each separate service disconnect. The sub code official stated, I can terminate the "Grounding Conductors" to the ground bar installed in the wireway, or tap using a "irreversible Crimp" to the GEC wire shown in the picture above from the ground rods. "Grounding Conductors" is terminology he used.

Because of the constant text message back and forth, I sent him a message stating I would add the wires. He responded back via text "Run a #4 and a #6 into each disconnect out of the metal gutter or a irreversible connector is fine." I understand possibly installing a #6 awg wire from the disconnect back into the wireway and terminating it to the ground bar. Because if any metal connection from the wireway to the service disconnect failed the #6 awg bonding wire should clear the fault connection. I'm confused on why he also wants a #4 awg too.

I installed 4# awg GEC from the copper water pipe inside, ran the wire outside where it is sleeved through the 1/2 PVC and terminated it on the ground bar inside the wireway, where it is bonded to the service neutral. The GEC from the water pipe satisfies 250.53 (D) (1) and (D) (2)

 

[infinity]

Sorry for all the confusion LOL!!
Originally the post was regarding where the GEC was terminated. The electrical sub code official requested to install "Grounding Conductors" from each separate service disconnect. The sub code official stated, I can terminate the "Grounding Conductors" to the ground bar installed in the wireway, or tap using a "irreversible Crimp" to the GEC wire shown in the picture above from the ground rods. "Grounding Conductors" is terminology he used.

Because of the constant text message back and forth, I sent him a message stating I would add the wires. He responded back via text "Run a #4 and a #6 into each disconnect out of the metal gutter or a irreversible connector is fine." I understand possibly installing a #6 awg wire from the disconnect back into the wireway and terminating it to the ground bar. Because if any metal connection from the wireway to the service disconnect failed the #6 awg bonding wire should clear the fault connection. I'm confused on why he also wants a #4 awg too.

I installed 4# awg GEC from the copper water pipe inside, ran the wire outside where it is sleeved through the 1/2 PVC and terminated it on the ground bar inside the wireway, where it is bonded to the service neutral. The GEC from the water pipe satisfies 250.53 (D) (1) and (D) (2)

I would contact the DCA. The inspector is incorrect and what he is asking for is not in the NEC and will just add objectionable current to the system which is a direct violation of 250.6.

 

[Bigbri0104]

Thank you for the advice. I'm going to call him again and see what his reasoning is. I'm very confused on why he wants it done this was.
on another note If I'm understanding the terminology he is stating "Grounding Conductors" from the disconnect, is he trying to say bonding jumpers?

 

[infinity]

Thank you for the advice. I'm going to call him again and see what his reasoning is. I'm very confused on why he wants it done this was.
on another note If I'm understanding the terminology he is stating "Grounding Conductors" from the disconnect, is he trying to say bonding jumpers?

Good luck. The applicable code sections are in post 30. For whatever reason the inspector is mistaken in thinking that the GEC must terminate in the service disconnects when it clearly does not.

 

[Bigbri0104]

Thanks

 

[infinity]

Thanks

You're welcome. Inspectors like electricians can make mistakes. There are code sections that are ambiguous where an inspector has leeway in making a judgement call like subject to physical damage. This is not one of those and should be challenged.