Cold bend radius

Twisted-pair cable shall withstand a bend radius of 4x cable diameter for UTP constructions and 8x cable diameter for screened constructions, at a temperature -20 c ± 1 c, without jacket, insulation, or shield (if applicable) cracking, when tested in accordance with ASTM D4565, Wire and Cable Bending Test. For certain applications (e.g., pre-cabling buildings in cold climate), the use of cables with a lower temperature bending performance of -30 c ± 1 c should be considered.