- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I think the language is horrible if that is what they intend. 6/4 cord would come with all four conductors same size, most any other wiring method will have a reduced EGC. And I honestly don't see why it needs to be same size as the ungrounded outside of if there were increased conductor size for voltage drop situation. Also seen many spa's that have supply terminals marked that they need 6 AWG supply conductor, yet they don't really give you sufficient room to run them in the control box.I agree that the language is requiring all 4 conductors, the two ungrounded conductors, the grounded conductor, and the EGC, to be 6AWG. That will require a non-standard cable or a 4 conductor w ground cable, and just not use the EGC.
I think the language is horrible if that is what they intend. 6/4 cord would come with all four conductors same size, most any other wiring method will have a reduced EGC. And I honestly don't see why it needs to be same size as the ungrounded outside of if there were increased conductor size for voltage drop situation. Also seen many spa's that have supply terminals marked that they need 6 AWG supply conductor, yet they don't really give you sufficient room to run them in the control box.![]()
So have I. What you posted doesn't. They need to make it more clear if that is what they want.I have seen spa instructions that say "a full size grounding conductor is required.
230 volts is the utilization voltage for a 240 volt, nominal system. This is typical for most equipment that is marked with a voltage. The nameplate voltages of 115, 200, 230, and 460 are intended to be use with voltage systems of 120, 208, 240 and 480 respectively.The instructions also say that it has to have 230 volts.
So you either get a transformer to step it down to 230 volts to satisfy the rigid requirements of what's exactly written, or approach the entire thing with common sense and use a cable that already has an appropriate EGC
I get that, but those instructions say must have 230 volts.230 volts is the utilization voltage for a 240 volt, nominal system. This is typical for most equipment that is marked with a voltage. The nameplate voltages of 115, 200, 230, and 460 are intended to be use with voltage systems of 120, 208, 240 and 480 respectively.
Conductor.Does the C mean cable or conduit.
I wouldn't.The confusion is 6/3 c/w ground ( 6 gauge 4 conductors). I assume it means a full size equipment grounding conductor.
If you had this what would you think the equipment grounding conductor would need to be. Also what does 6/3 c/w ground mean. Does the C mean cable or conduit.
The confusion is 6/3 c/w ground ( 6 gauge 4 conductors). I assume it means a full size equipment grounding conductor.
View attachment 2559677
The "C" means copper. They want 6/3 copper w/ground. All the tubs I have wired required copper.Conductor.
I wouldn't.
What I would probably do is run SER, NM, etc., to the disco, and then use a full-size EGC from there to the tub in a suitable raceway. I noticed it doesn't say conductors must be copper (other than bond).
It also says to look for model-specific instructions.
maybe .. CopperDoes the C mean cable or conduit.
From what I can recall a 6/3 romex comes with a size or 2 smaller for the ground.I say 10 AWG EGC is sufficient
The "C" means copper. They want 6/3 copper w/ground. All the tubs I have wired required copper.
For the record, I have never ran over a #10 for the EGC. Never even been questioned by an inspector.