What are the storage requirements and standards for optical cables

Optical cables must be stored in dry, UV-protected, and temperature-stable environments, with proper handling to prevent mechanical damage and maintain performance.Environmental ConditionsOptical cables should be stored in a dry, well-ventilated, dust-free space with stable temperatures, typically ranging from -20°C to 70°C, depending on the cable specification . Indoor cables must be kept in covered areas protected from UV radiation with a maximum relative humidity of 60% . Outdoor cables, although weather-resistant, should preferably be stored indoors to prevent drum damage from variable weather conditions . Storage areas should avoid flooding, chemical spills, excessive heat, open flames, and falling objects .Mechanical Handling and StorageCables should be stored on flat, firm surfaces, and reels must be secured to prevent movement . Drums delivered horizontally should be repositioned vertically immediately to prevent cable winding from loosening . When moving heavy reels, use forklifts or reel movers, ensuring forks are perpendicular to the reel flange, and never drop reels from any height . Rewinding should maintain even tension to avoid permanent cable damage, and the minimum bending radius must always be respected .Cable End ProtectionCable ends must be sealed, preferably with heat-shrink end caps, especially if stored for more than four weeks . Sealing prevents contamination and moisture ingress, which can degrade optical performance .Inspection and LabelingBefore installation, reels should be visually inspected for damage caused during storage . Labeling tags should be recorded to track cable specifications and storage history. Regular inspections help identify hidden damage that could affect performance after installation .Summary of Key PracticesStore indoors in dry, UV-protected areas; maintain stable temperature and humidity .Position reels vertically and secure them to prevent movement .Seal cable ends to prevent contamination and moisture ingress .Avoid excessive bending, tension fluctuations, and mechanical shocks .Inspect and label cables regularly to ensure traceability and integrity . Following these standard storage requirements ensures optical cables maintain their mechanical and optical properties, reducing the risk of hidden damage and ensuring reliable performance during installation.