Pool Panel Wiring

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mkgrady

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Massachusetts
I'm getting ready to wire my first inground pool. I will be running a feeder from a sub panel to a pool sub panel. The pool panel will be outside near the pump, heater, time clocks, etc. Does the feeder need to be in conduit? Is this where the ECG needs to be insulated? I looked over nec 680 but I find it to be confusing.
 
Generally speaking, conduit is required but there are exceptions./
Take a look at 680.25. Its fairly self-explanatory.
 
augie47 said:
...
Take a look at 680.25. Its fairly self-explanatory.
Click to expand...

680.25(B) [2011] is fairly clear about the insulated EGC part, but there is some controversy about the mention of one end being at the service panel. If there is a subpanel between the pool panel and the service panel, are you required to extend a separate insulated EGC from the subpanel back to the service panel?
Making it, in effect, an isolated ground EGC.
Of course there are exceptions for existing feeder wiring and separate buildings, just to complicate things further....
 
GoldDigger said:
680.25(B) [2011] is fairly clear about the insulated EGC part, but there is some controversy about the mention of one end being at the service panel. If there is a subpanel between the pool panel and the service panel, are you required to extend a separate insulated EGC from the subpanel back to the service panel?
Making it, in effect, an isolated ground EGC.
Of course there are exceptions for existing feeder wiring and separate buildings, just to complicate things further....
Click to expand...

2014 applies here. I'll have to take another look but it didn't seem clear what I needed to do.
 
It is confusing as many believe you cannot come from a sub panel if the equipment grounding conductor is not insulated to that panel. I am not convinced of that but you definitely must use an insulated equipment grounding conductor to the pool panel in conduit- usually pvc
 
A word of caution-- if you have a 2014 original code book then you need to cross out the entire exception in 680.25(A)(1)as it was in the errata. Also cross out 1) existing feeders covered in 680.25(A)(exception),or 2 in 680.25(B)
 
Here is the errata

17. Delete the Exception in 680.25(A)(1).

18. Revise 680.25(B) to read as follows:
(B) Grounding. An equipment grounding conductor shall be installed with the feeder conductors between the grounding terminal of the pool equipment panelboard and the grounding terminal of the applicable service equipment or source of a separately derived system. For other than (1) existing feeders covered in 680.25(A), exception, or (2) feeders to separate buildings that do not utilize an insulated equipment grounding conductor in accordance with 680.25(B)(2), this equipment grounding conductor shall be insulated.
Click to expand...
 
Dennis Alwon said:
It is confusing as many believe you cannot come from a sub panel if the equipment grounding conductor is not insulated to that panel. I am not convinced of that but you definitely must use an insulated equipment grounding conductor to the pool panel in conduit- usually pvc
Click to expand...

The sub panel is indeed fed with an uninsulated ECG (ser). It would be practically impossible to run the pool panel feeder back to the main service, so I will get the feed from the sub panel and just see what the inspector says.
 
GoldDigger said:
680.25(B) [2011] is fairly clear about the insulated EGC part, but there is some controversy about the mention of one end being at the service panel. If there is a subpanel between the pool panel and the service panel, are you required to extend a separate insulated EGC from the subpanel back to the service panel?
Making it, in effect, an isolated ground EGC.
Of course there are exceptions for existing feeder wiring and separate buildings, just to complicate things further....
Click to expand...
Isn't there an exception for single family dwellings?
 
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