Uninsulated pool ground a no go or a go?

[ritelec]

Hello,
Please confirm that I'm reading this correctly.

I just looked a an existing pool.

There is a 4 circuit intermatic panel.

There are 2- 240v motor circuits.

One circuit has been tapped off for a 240v ionizer.


I was brought in because they are adding a pool light (low voltage).

So here is my question,

The exterior intermatic panel is fed with thhn, and has an insulated ground.

At the main panel, I see 10-3 nm. (they relocated the pool equipment during a reno).

680.21 (A) (4) mentions a non insulated ground can be used for motors.


Would that 680.21 apply to only motors?
Now that I'm installing a light circuit to the intermatic, would I need to have that panel to have an insulated ground back to the main panel?
I believe so, but would like to make sure.
Also, if I'm right about this, then even adding the ionizer was wrong. Is that correct?


One more thing.
"IF" I was able to take lighting from that panel (proper ground), there is no room for another breaker (120v) so I'm curious to see if I could tap off one off the 240v circs to feed a low voltage transformer. However,
if I'm reading this right, I believe 680.23 (A)(4) voltage limitations prevents me from wiring the low voltage pool lighting transformer to a 240v line circuit. Correct?

Thank You

 

[augie47]

I am in agreement with you on all counts. Pool lighting requires an insulated grounding conductor for the branch circuit and the power to the transformer can not exceed 150 volt. (The transformer has to be a listed pool lighting transformer and I would doubt you could find such at 240v even if it were allowed)

 

[xformer]

What kind of pool is this? Does it have an equopo bond? See 680.22F

 

[ritelec]

Built in. They also want a suface ground also.

Checking it out at the equipment. There's a number six stranded between motors and it doesn't look like anythings headed out to the pool area where the diving biard and ladder is

So. I guess I will have to explain how the pool they've been using for twenty years has to be redone.

Is what it is right?

Thank you.