You can get metal NEMA 4 and NEMA 12, gasket sealed boxes made by
Hoffman. There should be no deformation issues. The only possible
issue could be the temperature of the gasket, but it would be held in
place by the clamped cover. Have the gaskets had an issue with the
deformed PVC boxes?
At 10:44 PM 8/24/2009, you wrote:
Hans,
that is an interesting reference, well done.
what about if the box is under the panels and only experiencing
ambient temperatures?
That is kind of my current preference when I have to use pvc due to
the deforming issues...
since the panels are movable by unbolting the slow-release mounting
system, it is alright.
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