ECN Forum Forums Code Related Discussion NEC & other Code issues 50 amp hot tub

The problem was that the pool house also had water running from the main house. Or so we think.. But the inspector said if there is the possibility of water running from the main house the sub panel needed to be grounded to the main panel. I assume the concern there is the different grounds..

I'm sorry I still don't get it.

I guess I am going to have to look this up when I have more time for the exact code he was refering too.. So in the mean time this is a guess.. Lets assume the ground to the water pipe is lost some how and the pipe becomes energized. I guess the concern that the energized pipe will go to the pool house where mixxed with water zap.. Then again it poses the same problem with the shower in the main house. But then again what the inspector wants the inspector gets. It did not matter much to me as for it was a T&M job..

James

Interesting thread.

2 concerns, GFI & Grounding...

1)>>>>>
as to GFI's, well i can hardwire without one in 680....NEC compliant, legal, however a possible listing violation? hmmmmmm....

yet a certain 3 ph pool motor in my town endures a regular tusami....
/tilt//hack/ pitoowwee...////
rationale check please.....

2)>>>
pool sub-panel per 250-32? we'll ground the living daylights outta the pool, motor, assoc equip & NOT run back to the service?
Voltage Gradient....??well we can't have dwelling g-faults spike the pool???

were it a gas station, we most certainly would ( haz-loc) run the GEC back to the service equip....bond everything along the way.....
I'm soooooo : confused:
rationale please...