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Discussion Starter · #1 ·
I have a customer that bought a spa and wanted it connected near the pool equipment panel.
200amp rated, fed with #8 and a #10 ground and #10 neutral
Existing 3/4 hp nameplate at 230 volts 5.5 amps
I get there and the spa is only rated at 40amps.
I pulled in the #3 I brought and left the #10 ground, I am going back to install a 60amp breaker instead of the 100amp I planned to use.
The spa will use a 40amp GFCI breaker with #8 and #10 neutral and #10 ground.
Question;
Am I OK leaving the #10 as a ground with the #3s or did I screw myself not pulling in #6s?
Will I have to increase the size of the ground?
I didnt do it because of VD or any other calculation.
 

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250.122 Size of Equipment Grounding Conductors.

(B) Increased in Size. Where ungrounded conductors are
increased in size, equipment grounding conductors, where
installed, shall be increased in size proportionately according
to the circular mil area of the ungrounded conductors
 

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Discussion Starter · #3 ·
250.122 Size of Equipment Grounding Conductors.

(B) Increased in Size. Where ungrounded conductors are
increased in size, equipment grounding conductors, where
installed, shall be increased in size proportionately according
to the circular mil area of the ungrounded conductors
So, doesnt have an exception,
Ill have to get a #8 green in there.
 

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No exception.

The rule was originally based on VD, but was changed to be inclusive on all installs.
 

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Discussion Starter · #5 ·
Thanks,
Pulling #8 tomorrow.
Ill have about $600 in that job including the breakers.
Will have about 10 man hours in it.
I quoted $2160.

Thought it was going to be a sweet job. :(
 
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