Minimum Dynamic Bending Radius for PVC-FLACH-CY 5X4X0.5mm² Shielded Control Cable: Complete Design Guide
The PVC-FLACH-CY 5X4X0.5mm² shielded flat control cable has a minimum dynamic bending radius of 72–108 millimeters when calculated across standard industrial practice. This specification is expressed as a ratio to the cable’s physical thickness, which in this case is 7.2 millimeters. The 72–108mm range corresponds to 10–15 times the cable thickness (10× T to 15× T, where T represents thickness). However, for equipment that will experience millions of flexure cycles over its operational lifetime—such as festoon systems on overhead cranes or umbilical lines on material handling equipment—Feichun’s engineering team recommends 110 millimeters as the practical standard, which equals approximately 15.3× the cable thickness. This conservative specification provides a meaningful safety margin that protects against the cumulative effects of repeated flexing, preventing both immediate mechanical failure and the gradual degradation of the copper shield wires that could compromise electromagnetic compatibility performance.
