5.0 Specific Cable Classifications

   CMS, CL2X (Restricted Cable) must be enclosed in conduit,
   up to 10 feet exposed; must pass UL 1581 VW-1 test

   CM, CL2 (General Purpose Cable) for use in areas other
   than risers or plenums; must pass UL 1581 vertical tray test

   CMR, CL2R (Riser Cable) for cable in vertical shafts;
   must pass UL test method 1666

   CMP, CL2P (Plenum Cable) for use in plenum areas (air ducts);
   must pass UL 910 test for smoke and flame spread