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standard EPR

4 Min Read
FLEXIDRUM® MEDIUM FLAT: Advanced High-Flexibility Salt-Fog Resistant Port Cable System Specialized reeling-flat power cable engineered for extreme maritime environments combining flexible tinned copper conductors (IEC 60228 Class 5), proprietary EPR insulation chemistry, hydrophobic semi-conductive interfaces, and specialized red outer-sheath PCP compound with integrated volatile-corrosion-inhibitor (VCI) technology. Designed for rapid cable-reel deployment systems in dredging, submersible pump, and floating crane applications requiring superior electrochemical corrosion immunity and compact outer-diameter efficiency across 3.6/6 kV through 8.7/15 kV voltage platforms.
Technical Department
on20/05/2026

PROTOLON XPRT -50°C: Портовые Кабели для Арктических Условий

Стандартные электрические кабели, такие как обычный PROTOLON XPRT (рассчитанный на -35°C минимум), содержат материалы, которые становятся **хрупкими и ломкими** при температуре ниже -40°C. Проблемы начинаются на молекулярном уровне: **(1) Стеклование Полимеров**: При температурах ниже определенной точки (называемой температурой стеклования, Tg) полимеры, такие как ЭПР, переходят из гибкого состояния в твердое, хрупкое состояние. Стандартная ЭПР имеет Tg примерно -35 до -40°C. При -50°C она становится **как пластик при комнатной температуре, помещенный в морозилку** — она трескается при малейшем сгибании.
6 Min Read
FeiChun High-Flexibility Salt-Fog Resistant Port Cables vs FLEXIDRUM® R 501: Advanced Polymer Chemistry, Electrochemical Protection Systems, Mechanical Performance, and 30-Year Lifecycle Cost Analysis for Port Gantry and Ship-to-Shore Equipment FLEXIDRUM® R 501 represents Nexans' market-leading general-purpose flexible reeling cable, engineered for diverse industrial applications from mining tunneling to standard port equipment—delivering proven performance at attractive cost positioning across 0.6/1 kV systems with −20°C to +80°C operating temperature range and standard EPR insulation with PUR outer sheath chemistry. However, when deployed in extreme salt-fog coastal environments (>280 days annually at 85%+ relative humidity with continuous salt-aerosol exposure), FLEXIDRUM® R 501's general-purpose design encounters fundamental material limitations: standard EPR insulation absorbs 1.2–1.8% moisture content in marine conditions, enabling rapid chloride ion penetration; tin-only conductor protection provides inadequate sacrificial anode capacity for 25+ year marine service; and standard industrial PCP/PUR compound selections fail to provide optimized chloride barrier properties. FeiChun's specialized marine-grade flexible reeling cables address these limitations through advanced materials engineering: HEPR (high-ethylene propylene rubber) formulations reducing water absorption to 0.3–0.6%; dual-layer tin+zinc electrochemical conductor coating system establishing 3.0–3.5× service-life extension; and proprietary 5GM2 PCP outer sheath incorporating reactive chloride-trapping additives—delivering measured 28–32 year service-life capability in salt-fog environments versus FLEXIDRUM® R 501's characteristic 8–12 year degradation pattern in identical coastal deployments.
Technical Department
on25/04/2026

FLEXIDRUM®R 501

FeiChun High-Flexibility Salt-Fog Resistant Port Cables vs FLEXIDRUM® R 501: Advanced Polymer Chemistry, Electrochemical Protection Systems, Mechanical Performance, and 30-Year Lifecycle Cost Analysis for Port Gantry and Ship-to-Shore Equipment FLEXIDRUM® R 501 represents Nexans’ market-leading general-purpose flexible reeling cable, engineered for diverse industrial applications from mining tunneling to standard port equipment—delivering proven performance at attractive cost positioning across 0.6/1 kV systems with −20°C to +80°C operating temperature range and standard EPR insulation with PUR outer sheath chemistry. However, when deployed in extreme salt-fog coastal environments (>280 days annually at 85%+ relative humidity with continuous salt-aerosol exposure), FLEXIDRUM® R 501’s general-purpose design encounters fundamental material limitations: standard EPR insulation absorbs 1.2–1.8% moisture content in marine conditions, enabling rapid chloride ion penetration; tin-only conductor protection provides inadequate sacrificial anode capacity for 25+ year marine service; and standard industrial PCP/PUR compound selections fail to provide optimized chloride barrier properties. FeiChun’s specialized marine-grade flexible reeling cables address these limitations through advanced materials engineering: HEPR (high-ethylene propylene rubber) formulations reducing water absorption to 0.3–0.6%; dual-layer tin+zinc electrochemical conductor coating system establishing 3.0–3.5× service-life extension; and proprietary 5GM2 PCP outer sheath incorporating reactive chloride-trapping additives—delivering measured 28–32 year service-life capability in salt-fog environments versus FLEXIDRUM® R 501’s characteristic 8–12 year degradation pattern in identical coastal deployments.