Are those couplings on the sealtite connectors on the 2nd and 3rd conduits from the top because the sealtite was cut to short?I recently ran across an installation of a splice box in a nema 3r enclosure.
The uploaded photo shows the installation (a 12" extension was added the box in the photo). Does anybody see any code violations?
My take on this is that it was done due to the fittings are too large in diameter to fit between conduits #1 and #4. Should have used Meyers Hubs on a larger enclosure.Are those couplings on the sealtite connectors on the 2nd and 3rd conduits from the top because the sealtite was cut to short?
I don't think that was a serious comment - the box is very obviously undersized, and the wires look like a tangled mess.I don't have a picture of the extension. I just wanted to get opinions on the workmanship of the contractor.
This post made my day! You just got to shake your head and then smile with the thought of someone trying to put the cover on. Darwin Awards comes to mind.I don't think that was a serious comment - the box is very obviously undersized, and the wires look like a tangled mess.
Someone else said this, but I have to repeat it: That is unbelievable.
reread the section. the distance shall be 6 times the largest plus the sum of ALL the other raceways in the row that results in the largest dimension.The pull box shown in the figure has two 3-inch conduits and four
2-inch conduits entering it. Because the same number and size of
conduits are entering each side, the sidesAand B will be the same length.
According to the rules of the preceding paragraph, the length of sides A
and B can’t be less than six times the largest conduit diameter plus the
diameters of each smaller conduit.
6 ? 3 inches = 18 inches
2 inches + 2 inches = 4 inches
Total = 18 inches + 4 inches, or 22 inches
The distance C between the centers of the two nearest 2-inch conduits
can’t be less than 6 ? 2 inches = 12 inches.
If the pull box is square and the two conduits are the same distance from
the corner, the distance D must be no less than 0.707 ? 12 inches = 8.484 inches, or approximately 8 1/2 inches."
My instructor says this is directly related to "Table 5" of the NEC for wires over 8 gauge.