22-200 does not say NMWU can be installed in a raceway it says it may be installed in a category 1 (wet) location.
Table 19 does not list Loomex of any designation for installation in a raceway so in a raceway it may not be installed.
The heat thing is at best a reach for an answer to prevent the installation of loomex.
Can anyone explain why they want to install it in a raceway? I cannot understand installing a pipe then sticking a cable in it. Expense without benefit?
