On 8/12/17 5:44 PM, Bob wrote:
Hello,

Concerning the normal GFCI protectors/modules:

Obviously they protect "downstream" like they are designed to.

But does this protection also extend "upstream" ?
If so, to where ?

Thanks,
Bob

No, only downstream.

Ideally the GFCI would be the first outlet in line coming off that
circuit's breaker.

There are GFCI breakers if you need to protect any upstream wiring.