EGC general question

[romex jockey]

The inspector has no authority to make rules.

no, but they have the authority to enforce the rules . as well as having us 'show them the math'....
RJ~

 

[Tulsa Electrician]

I did the calc and came up with 16511. I use 5 decimal places.
Was told when I took my masters to always use 5.
The use of good bonding practice also helps if ran in EMT. Was curious about the length of run.
I also looked at the CWR(conductor with stand rating) for half cycle clear time.
#10, 6108
#8, 9572
#6, 15213
Don't see why #8 would not be a good choice for a most likely 10 k breaker. I do not know available fault current to compare. The #10 may even do the job. However not per NEC 250.122

 

[dereckbc]

The inspector has no authority to make rules.

That is a true statement, but they can interpret the rule any way they want.

The two golden rules for a happy Inspector and wifey.

1. Inspector and Wifey are always correct.
2. When Inspector and Wifey are incorrect, refer to Rul;e #1

OP when you increase the size of the circuit conductors to compensate for voltage loss, you must upsize the EGC per NEC 250.122 (B)

 

[Tulsa Electrician]

Thought I would share my math