Jeff Remas

230.40 Exception 1

If they keep the service entrance cable on the outside until it comes inside, they can keep both as main panels. Much less expensive for the EC as they eliminate a disco and running a 4 wire.

Panel covers are normally off for the final inspection and the code official can only assume they will be placing the correct screws into the panel cover. NoLox is not a code requirement The empty holed need some blanks. All in all, an easy fix.

I think the NCCA is a subsidiary of InterNachi[:-party]

I would accept the pipe clamp in the photo because it is plastic and wide and at no point does the metal touch the NM cable. A nail on the other hand is similar to an uninsulated metal staple. I am not a fan of uninsulated staples such as the one in the phot below the pipe clamp that is holding 2 wires. The reason I don't like metal staples is that they can be placed too tightly and damage the jacket. I have also seen the wires pulled after the metal staple was placed and it stripped the jacket back. I would think the same would happen with an 8d nail. The pipe clamp appears to be workman like in its installation and in all realistic applications will never cause a problem. This is a reasonable installation. I approve metal staples every day as long as they are not pinching the wires but I would not appoved a nail for the reasons above. This pipe clamp is better than a nail or an uninsulated metal staple any day. The NEC & IRC allow some subjectivity for the inspector, hence the word "approved". Depending on the length and tightness of the bundling, this may only be a derating issue as the OP eluded to initially.

AS an AHJ the clamp shown would be acceptable to me.

Yes Erik with a K, NOT LESS THAN therefore it needs to be 5' or MORE away from the hot tub. The link you posted above does not apply because this is a SFR and the answer in the link does not qualify SFR. Most of these jobs are with PVC and THWN pulled inside. I just did a job for my aunt like this 2 weeks ago. I pulled NM inside the house and from the exterior disco to the hot tub I pulled THWN, 6/3NM inside the house and #8 THWN outside the house and was able to maintain the 50A required rating.. NEC 110.14©(1)(a)(1) states; (a) Termination provisions of equipment for circuits rated 100 amperes or less, or marked for 14 AWG through 1 AWG conductors, shall be used only for one of the following: (1) Conductors rated 60°C (140°F). #8 is rated 40A @ 60C You left out this part: (3) Conductors with higher temperature ratings if the equipment is listed and identified for use with such conductors. (4) For motors marked with design letters B, C, or D, conductors having an insulation rating of 75°C (167°F) or higher shall be permitted to be used, provided the ampacity of such conductors does not exceed the 75°C (167°F) ampacity.

Highly doubt it was permitted and inspected. It may have been permitted but not inspected. This happens all too often. At the end of the year I find lots of open files where people never called for inspections but they had a permit. Don't sweat this one, you are covered. If the reputation thing bothers you then spend the time to do a permit research.

I could drum up some 480 3ph cold sequencing setups for you but not hot sequence. That is what is spec'd here for 400A and above on 480 4ph

I too will join those in admitting I have done that before. I had to shave off about 3/8" at the most though. Always in an older home that had wide trim. Never on new construction.

Yes Erik with a K, NOT LESS THAN therefore it needs to be 5' or MORE away from the hot tub. The link you posted above does not apply because this is a SFR and the answer in the link does not qualify SFR. Most of these jobs are with PVC and THWN pulled inside. I just did a job for my aunt like this 2 weeks ago. I pulled NM inside the house and from the exterior disco to the hot tub I pulled THWN, 6/3NM inside the house and #8 THWN outside the house and was able to maintain the 50A required rating..

So 680.41 does not apply? 680.41 does not apply because this is a SFR. The disconnect is 7 feet away and within site so it is not an issue.

Erik, 7 feet for a hot tub disco is code compliant.

I'm still trying to figure out how the disco is germane to the question. Are there clearance requirements between hot tubs and mirror balls? Who said it was germane? A question about the disco was answered. At least you learned something today.

That just means that everything is hooked up correctly as far as grounds, hots and neutrals.

You got it Marc. Good research. This actually came up during a code inspection of a hot tub. At first they ran 8/3NM to the disco then 8/3UF from the disco to the hot tub. I failed the installation because it was a 50A circuit on a 50A OCPD and told them that they need to run 6/3 and that they need to run THWN from the disco which at that point they can use 8 awg copper due to the rating of THWN. When I went back, they changed the NM inside the house to 6/3 but used 6/3 UF from the disco to the hot tub in conduit. The electricians have been arguing with me on every part of this.

OK, now that I have your attention, lets break this down. What run is in violation?: 1) The NM from the main panel to the disconnect 2) The UF from the disco to the hot tub 3) Both runs We have to determine what the "branch circuit" is.

Yes, This is not where I am going with this one. See my code references above. The answer is with the information that was provided, not what was not provided. Good thinking though Bill

Not a bonding issue either. Look at 680.21(A) (1)

Would 680.21(A)(1) apply?

Disconnect is 7 feet from the hot tub so not an issue. It is a newer 4 wire being fed by a 4 wire so not an issue. Where is the issue?

*Hot tub installed outdoors. *50A GFCI breaker in main panel inside the home. *6/3 NM runs inside the home and terminated inside a properly placed disconnect within site of the hot tub. *From the disco 6/3 UF is properly protected and runs to the hot tub. All wiring is correct and the hot tub functions. Is there a problem with this install?

The emt is the grounding conductor, the green wire is the ground for the equipment that the disco serves.

If it is an existing installation then the 2008 NEC does not come into play. Older units and there are millions of them out there (fridges, freezers) that are more than 10-12 years old can and have cause trips due to their leakage current. Newer appliances will not cause the nuisance tripping. I think the HI is correct to warn the buyer about the potential problem, especially not knowing the age of the appliances. There was a reason why prior to 2008 NEC there were exceptions to the GFCI requirement.

Don't forget to document and report the location and accessibility of the main disconnect.