CAT5E Shielded Outdoor UV Rated Bulk Cable with Messenger - 1000ft Wooden Spool - BlackCAT5E Shielded Outdoor Rated with Messenger Category 5e Outdoor Rated cable is perfect for aerial installations that require Shielding. UV rays present in sunlight can tear down PVC material and create gaps in the outer jacket, which introduces moisture to the center conductors. To combat this, the jacket is made with LLDPE (Linear low density polyethylene) material, which is much tougher than PVC based materials. Excessive pulling tension often