When the 2020 added this prohibiting 6 disconnect split bus or main lug panels it was also at the same time as requirements for 1 and 2 family homes to add outside emergency disconnects. The NEC revamped how service equipment is designed and installed sweepingly.
If you are the contractor owner and not an employee, the OSHA rules do not apply to. However they do apply to all employees and the fine for working on energized equipment could easily put a small contractor out of business. This was about making the equipment both safe to work on and to comply with the OSHA requirements that apply to all employees.
Yes, if there is a line side main, any type of multimeter enclosure is compliant with the 2020 and 2023 code rules, however, at least around here, that line side main was only used where there were more than six meters. The typical six meter assembly is not compliant with the 2020 and 2023 requirements. I am not sure that there are any on the market that have been designed to the new UL 67 requirements that can be used without a line side main.
I installed 5 and 6 gangs that would about 4 years ago that had 150s in them. They were siemens. One was the stacked style and the other the more standard wide style.
What new rule does not allow a qualified person with proper PPE to work on live energized equipment?
I'm out in a couple years time, I'll just gripe till then. What's the point. The code people do what they want. Look they got us AFCI, self test GFCI...... It made no difference how much backlash.
Working on energized equipment has not been permitted by OSHA for decades, with the exception of troubleshooting and "justifiable energized work". Almost no energized work can be justified when you look at the OSHA rules. PPE and insulated tools do not change anything.
That's only if you don't write your own policy vs 70E and change things and prepare to be able to defend it in court. In the end its smart to make it possible to work dead even though most jmen can work live on a little low incident energy panel no issue.
Even if you write your own policy, you have to be able to justify the energized work, and that is not easy to do.
Thing is is if that ever happened they'd have to shut down too even with that policy since when not using 70e unaltered you can't keep your plant open till osha signs off again.
I ain't talking about a plant that may have higher voltage than 120/240. What is the Arc fault cal at a 6 meter residential meter pak or even a SFR. Please you give these CMP's a inch they take a mile. They do not know how to write codes with completeness and with reasonal specificity. They write catch all.
The OSHA and 70E rules apply to 120/240 volt services. There may not be much of an arc flash hazard but there is a shock hazard.
Ahh so the CMP never wordsmith a code? Just a up or down vote?
It appears that the existing equipment is compliant with the 2020 code, but it really doesn't matter. The equipment was compliant at the time of the original installation, and replacing the feeder does not change that.
As long as it's possible to isolate the neutral from the can. A lot of the up-to-six-meter packs I've seen are built like they can only be used for service equipment.
See Exception #2 to 250.142(A).
