New Addition and Current Code

[hurk27]

What you just said is correct.

But you added a CEE so it must be used.

If you added a circuit for a bathroom receptacle does it have to be a 20 AMP or would you allow a 15, using the old code?

I cant see just because the new addition has a concrete foundation it is required to be used for an existing service? to me it is the service that is required to have a grounding electrode system, and if the service wasn't changed it should be grandfathered.

About 60 miles east of me there is a large Amish area, the houses don't have services nor do they have any grounding electrode systems.

As far as the new bathroom circuit, sure anything new has to meet new code without making the existing a code violation.

 

[infinity]

I cant see just because the new addition has a concrete foundation it is required to be used for an existing service? to me it is the service that is required to have a grounding electrode system, and if the service wasn't changed it should be grandfathered.

I agree. If the service is existing then it can remain as is without the need for an additional electrode.

 

[jxofaltrds]

I agree. If the service is existing then it can remain as is without the need for an additional electrode.

I agree the service does not have to change. The CEE is not the service. The CEE is new work.
Can I change an old "sub" panel that is H-H-N with a new panel and combine the grounded conductors and EGCs in it?

IMO you can not create a violation. I think 250.50 is clear.

If you are doing an addition you need the wires to get back to the panel so what is unreasonable with taking the CEE back there?

This is the NESC not the NEC but it is a good read.
http://www.iaei.org/magazine/?p=2699