I can't find a rule in my Ontario Code book regarding the use of conduit in that location. But, as mentioned above due to the acidity and damp area its in I think common sense would prevail.
The only 'for sure' I did find was regarding buildings housing Livestock or Poultry was 22-204 and refers to Appendix B.
More or less states that:
-no alumn wiring can be used.
-shall be of the type listed in Table 19 for wet locations.
-where nonmetallic sheathed cable is used it shall be of the NMW or NMWU type & must be protected against damage by rodents where it is less than 300mm above a surface where rodents may be present.
Thats all I could make out of it... but if it were me I'd pvc it.
-Greg
