Yes, I still need to contend with the branch circuit wiring getting wet. I have waterproof wire nuts on all of the splices for added protection to the exposed portions of conductors. At least they don't have to worry about the breakers and panel components being compromised by corrosion. Yes, more could be done(moving all branch circuit wiring, assuming there's enough slack to do so). I believe I made it much safer and easier to do maintenance on. I appreciate the feedback guys. This is an awesome platform.
While most comments are well-meaning, nothing will keep water-incursion that could prevent or even mitigate the problem. You can slow the water seepage with gasketed cover. . . but the removable knockouts will not prevent water from seeping-in.
Once water managed to gain entry—it will stay there much longer even when the flood waters had receded.
One solution would be to install a JB above the waterline with regular NEMA 1 (general purpose JB) . One comment alluded to this one.
Recommended procedure:
1.Terminate the home runs and feeder to the above NEMA I Box. If you can pull the wires towards the new NEMA I enclosure. . . installing a NEMA 6P won’t be necessary.
Otherwise, this will require installing another NEMA 6P (water tight JB designed for water immersion) at the location of the existing panel. This is the JB that is subject to be submerged. Schedule 80 PVC can be used as nipples with listed water tight gasketed hubs. This pipe (conduit) can be threaded as well.
2. There is [on the market] plastic or fiber enclosures that you can have the holes tapped (threaded) and using gasketed hubs when entering the enclosure. This also comes with gasketed cover. Bonding should not be a problem. These boxes are not really expensive.
Leave the old panel in place. . . and just re-route the home runs and the feeder. Location of home runs and orientations may vary. . . but I’m sure your skill will overcome this daunting task.
This is not an easy task-- but if you want to do it right it will take some of effort.
Good things don’t come easy.
Here is a type of enclosure.:
https://encrypted-tbn1.gstatic.com/...NYCFr_UpATMMDSS_E-9uY69yjQyWP3i1uQJg&usqp=CAc
I’ve done things like this in breweries where water intrusion is a constant “battle” --and with all these sanitizing wash downs, total housecleaning at the end of each shift is the order of the day. In addition, 480 volts connections are not accommodating -- being soaking wet inside enclosure.
We did use stainless steel--water tight enclosures NEMA Type 6P.
For residential use--plastic or composite fibre (NEMA I) is good,
Good luck and may you prosper in the midst of Covid.
