Prysmian PROTOLON is a dedicated reeling cable product family manufactured specifically for ship-to-shore (STS) container cranes, rubber-tyred gantry (RTG) equipment, and fixed portal gantry cranes operating in port environments. The PROTOLON designation encompasses multiple voltage ratings and sheath variants optimized for the unique demands of container port operations: extreme torsional loading from reel wind/unwind cycles, exposure to saline spray and salt-laden atmospheres, exposure to direct ultraviolet radiation in open-air port environments, and continuous mechanical flexing over thousands of reel cycles. The cable is manufactured to IEC 60502-1 standards (identical to mining reeling cables) but with additional performance requirements specified in ISO 3384 (compression set limits), ASTM B117 (1000-hour salt fog resistance), and IEC 60811-2-2 (UV aging resistance). These additional requirements reflect the marine environment's specific hazards: salt fog causes accelerated outer sheath degradation in non-marine-optimized cables, and UV radiation polymerizes and hardens outer sheath materials, reducing flexibility and increasing brittleness over 5–8 year service periods.

on20/05/2026

Prysmian PROTOLON Reeling Cable Alternative for Port Authorities

Prysmian PROTOLON is a dedicated reeling cable product family manufactured specifically for ship-to-shore (STS) container cranes, rubber-tyred gantry (RTG) equipment, and fixed portal gantry cranes operating in port environments. The PROTOLON designation encompasses multiple voltage ratings and sheath variants optimized for the unique demands of container port operations: extreme torsional loading from reel wind/unwind cycles, exposure to saline spray and salt-laden atmospheres, exposure to direct ultraviolet radiation in open-air port environments, and continuous mechanical flexing over thousands of reel cycles. The cable is manufactured to IEC 60502-1 standards (identical to mining reeling cables) but with additional performance requirements specified in ISO 3384 (compression set limits), ASTM B117 (1000-hour salt fog resistance), and IEC 60811-2-2 (UV aging resistance). These additional requirements reflect the marine environment’s specific hazards: salt fog causes accelerated outer sheath degradation in non-marine-optimized cables, and UV radiation polymerizes and hardens outer sheath materials, reducing flexibility and increasing brittleness over 5–8 year service periods.