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CPE outer sheath

19 Min Read
Marine & Port Drag Cable — High-Flexibility Saltwater-Resistant System A comprehensive engineering dissection of heavy-duty marine drag cables for port equipment, container terminals, and offshore platforms — from conductor architecture and EPR insulation to steel wire armour (M2) design rationale, galvanic corrosion protection mechanisms, environmental compliance, and validated performance benchmarking against Nexans Eproneo Port and Prysmian marine systems.
Technical Department
on16/06/2026

Mining Cable Families at a Glance: An Engineering Guide to PROTOMONT, PROTOLON, TENAX, CORDAFLEX, NSSHOEU, TUNNELFLEX, MINEMASTER, SHD-GC, G-GC, MT 818 and Fibre Optic Cables

In mining, tunnelling and bulk material handling, the term mining cable does not describe one universal product. It describes an engineering map: reeling cables, trailing cables, feeder cables, fixed installation cables, tunnel cables, dredger and submersible pump cables, ground-check cables, fibre optic cables and custom OEM cable systems. A single mine may use low-voltage 0.6/1 kV reeling cables for LHD machines, medium-voltage trailing cables for excavators, TBM reeling cables from 6/10 to 18/30 kV, fixed feeder cables in tunnels and optical fibre networks for monitoring and automation. The correct selection starts not with a brand name, but with the application: how the cable moves, how it bends, how it is grounded, what voltage it carries, what regional standard applies and how the surrounding mine environment attacks the sheath.
6 Min Read
C PUR Design Integration: FLEXIFESTOON PUR characteristics (inherited): Outer sheath: PUR (polyurethane, compact) Insulation: Special TPE (superior elongation) Central unit: Textile (mechanical support) Weight: 25–30% lighter than standard rubber Diameter: 15–20% smaller than rubber equivalent Cost: +15–25% premium over rubber Service life: 10–15 years (extended) Screened design addition (new): Screen: Tinned copper braid (EMC shielding) Coverage: 80–90% (good EMC performance) Diameter impact: +2–3 mm (screen adds ~3 mm to diameter) Weight impact: +500 kg/km (braid + outer sheath) Cost: Additional +10–15% for screen layer Combined C PUR result: vs. Unscreened PUR (FLEXIFESTOON PUR): FLEXIFESTOON PUR: Minimal diameter/weight, no EMC C PUR: Slightly larger (screen added), excellent EMC Choice: PUR for maximum compactness (non-EMI environments) C PUR for VFD motors, confined spaces with EMC requirements vs. Standard rubber screened (GRDGCGÖU-J): GRDGCGÖU-J: Standard diameter, heavy, rubber durability C PUR: Compact diameter, lightweight, superior oil/chemical resistance Choice: GRDGCGÖU-J for simple temporary festoon C PUR for permanent industrial machine tool installation Nomenclature: FLEXIFESTOON® = Product family (flexible cable) C = Screen (copper braid, "C" from German "Schirm") PUR = Material (polyurethane jacket) Result: "FLEXIFESTOON C PUR" = Screened compact polyurethane cable
Technical Department
on10/06/2026

什么是 EPN 78 3,6/6 kV：矿山高柔性抗拉抗磨损中压卷筒电缆的工程解析

EPN 78 3,6/6 kV 是一种面向露天矿、大型移动采矿设备、挖掘机、矿用自卸设备、移动破碎机、装车桥以及类似散货装卸机械的中压高柔性卷筒电缆。它不是普通固定敷设电缆的“加厚版本”，而是一种围绕反复卷绕、动态牵引、滚轮挤压、外护套磨耗、油污、臭氧、紫外线和中压电场控制共同设计的移动供电系统。对于 Feichun 电缆工程方案而言，EPN 78 / EPN 78T 代表的是矿山专用电缆开发中的一个核心方向：在 3,6/6 (7,2) kV 电压等级下，把柔性、抗拉、耐磨、耐油、耐候和中压绝缘可靠性集成到同一个可卷绕结构中
5 Min Read
BASKET SPREADER 740 (YSLTOE) is engineered specifically for hoisting and control applications where mechanical flexibility and electrical reliability must coexist in marine environments. Unlike load-bearing structural cables (which prioritize tensile strength), control cables emphasize: Conductor flexibility – Repeated bending over pulleys without mechanical fatigue Insulation integrity – Voltage breakdown resistance under salt-fog corrosion Mechanical damping – Rope-like flexibility to drape naturally in spreader bar frames Environmental barrier – Outer sheath blocks salt, moisture, and UV penetration Core Design Elements: Component Material Specification Function Port Environment Benefit Conductor Flexible red copper Class 6 (IEC 60228) Carries 300/500V power; enables bending flexibility High purity copper resists galvanic corrosion Insulation PVC type YI2 (IEC 60811) Electrical isolation; voltage breakdown resistance (2 kV test) PVC with marine additives prevents salt-induced tracking Central Unit Aramide yarns (Kevlar™ equivalent) Mechanical load-bearing backup; structural integrity Aramide resists moisture & salt; absorbs vibration stress Outer Sheath PUR type 11YM1 (DIN 73377) Environmental barrier; UV/ozone/moisture protection Superior salt-fog resistance; 20+ year marine lifespan
Technical Department
on10/06/2026

RONDOFLEX XPRT (N)GRDGOEU：高机械应力低压圆形悬挂电缆的工程深度解析

RONDOFLEX XPRT (N)GRDGOEU 0.6/1kV 是一款低压圆形动力与控制电缆， 主要用于 festoon systems，也可用于连接机床、物料搬运设备等设备的移动部件。 它适合高机械应力和运行中的频繁弯曲场景。 与上一类整体屏蔽型 screened festoon cable 不同，这一版本更强调通用型圆形悬挂动力/控制能力； 部分 C 型结构带有独立镀锡铜编织屏蔽，用于需要局部信号保护的控制或成对芯线结构
5 Min Read
C PUR Design Integration: FLEXIFESTOON PUR characteristics (inherited): Outer sheath: PUR (polyurethane, compact) Insulation: Special TPE (superior elongation) Central unit: Textile (mechanical support) Weight: 25–30% lighter than standard rubber Diameter: 15–20% smaller than rubber equivalent Cost: +15–25% premium over rubber Service life: 10–15 years (extended) Screened design addition (new): Screen: Tinned copper braid (EMC shielding) Coverage: 80–90% (good EMC performance) Diameter impact: +2–3 mm (screen adds ~3 mm to diameter) Weight impact: +500 kg/km (braid + outer sheath) Cost: Additional +10–15% for screen layer Combined C PUR result: vs. Unscreened PUR (FLEXIFESTOON PUR): FLEXIFESTOON PUR: Minimal diameter/weight, no EMC C PUR: Slightly larger (screen added), excellent EMC Choice: PUR for maximum compactness (non-EMI environments) C PUR for VFD motors, confined spaces with EMC requirements vs. Standard rubber screened (GRDGCGÖU-J): GRDGCGÖU-J: Standard diameter, heavy, rubber durability C PUR: Compact diameter, lightweight, superior oil/chemical resistance Choice: GRDGCGÖU-J for simple temporary festoon C PUR for permanent industrial machine tool installation Nomenclature: FLEXIFESTOON® = Product family (flexible cable) C = Screen (copper braid, "C" from German "Schirm") PUR = Material (polyurethane jacket) Result: "FLEXIFESTOON C PUR" = Screened compact polyurethane cable
Technical Department
on10/06/2026

RONDOFLEX (C)-FC XPRT (N)GRDGCGOEU-J：高机械应力屏蔽悬挂电缆的工程深度解析

RONDOFLEX (C)-FC XPRT (N)GRDGCGOEU-J 0.6/1kV 是一款低压屏蔽圆形悬挂电缆， 面向 festoon systems，适用于 gantry cranes、hall gantry cranes、rack material handling equipment、 transportation systems 和 machine tools。 它尤其适合动力电缆可能干扰数据电缆，或系统需要满足 EN 55011/55022 最大辐射/发射限值的场合。 与普通悬挂电缆相比，它的关键词不是单纯“柔性”，而是 高机械应力、频繁弯曲、EMC 屏蔽、变频器适配和电机柔性供电
10 Min Read
Large three-phase AC motors drove continuous-duty equipment (conveyor systems, pump stations, ventilation fans) with straightforward on/off control via contactor switches. The control circuits were simple, the equipment was robust and forgiving of electrical noise, and cable specifications focused purely on mechanical durability and basic electrical protection. Modern underground mining operations operate in a fundamentally different electrical environment. Variable frequency drives (VFDs) regulate motor speeds to match load requirements, reducing energy consumption and extending equipment life. Programmable logic controllers (PLCs) and distributed control systems (DCS) automate equipment sequencing and mine ventilation. Wireless monitoring systems track equipment health, environmental conditions, and safety parameters. The mine's electrical environment has become as electrically complex as an industrial manufacturing facility, except that everything must operate underground in the presence of conductive dust, moisture, and metallic ore particles that create unintended current paths and electromagnetic noise sources.
Technical Department
on20/05/2026

Understanding UNE 22513-1 (DS1N) Requirements for Underground Mines

Large three-phase AC motors drove continuous-duty equipment (conveyor systems, pump stations, ventilation fans) with straightforward on/off control via contactor switches. The control circuits were simple, the equipment was robust and forgiving of electrical noise, and cable specifications focused purely on mechanical durability and basic electrical protection. Modern underground mining operations operate in a fundamentally different electrical environment. Variable frequency drives (VFDs) regulate motor speeds to match load requirements, reducing energy consumption and extending equipment life. Programmable logic controllers (PLCs) and distributed control systems (DCS) automate equipment sequencing and mine ventilation. Wireless monitoring systems track equipment health, environmental conditions, and safety parameters. The mine’s electrical environment has become as electrically complex as an industrial manufacturing facility, except that everything must operate underground in the presence of conductive dust, moisture, and metallic ore particles that create unintended current paths and electromagnetic noise sources.
10 Min Read
DS1N (also designated UNE 22513-1) represents an evolved generation of mining cable technology designed specifically for environments where electromagnetic interference (EMI) and signal integrity are as critical as mechanical durability. The standard specifies cables that combine the proven mechanical robustness of UNE 22511/22512 designs with the electromagnetic shielding technology required for control systems, signal circuits, and power distribution in complex underground installations. The defining characteristic of DS1N is the integration of a metal braid shield — typically tinned copper wire woven at high density around the cable core — combined with a symmetric earth architecture (3×S1 + 3×S2 distribution) that provides both electrical protection and mechanical balance. This combination addresses a critical operational requirement in modern mining: reducing noise and crosstalk in environments where control signals must coexist with high-power switching equipment, variable frequency drives, and long distribution runs to remote equipment.
Technical Department
on20/05/2026

Type DS1N Mining Cable

DS1N (also designated UNE 22513-1) represents an evolved generation of mining cable technology designed specifically for environments where electromagnetic interference (EMI) and signal integrity are as critical as mechanical durability. The standard specifies cables that combine the proven mechanical robustness of UNE 22511/22512 designs with the electromagnetic shielding technology required for control systems, signal circuits, and power distribution in complex underground installations. The defining characteristic of DS1N is the integration of a metal braid shield — typically tinned copper wire woven at high density around the cable core — combined with a symmetric earth architecture (3×S1 + 3×S2 distribution) that provides both electrical protection and mechanical balance. This combination addresses a critical operational requirement in modern mining: reducing noise and crosstalk in environments where control signals must coexist with high-power switching equipment, variable frequency drives, and long distribution runs to remote equipment.
19 Min Read
FLEXIFESTOON® SOOW EPDM/CPE Marine-Grade: Salt-Fog Resistant Heavy-Duty Rubber Port Cable for STS Cranes, RTG/RMG Gantries, and Ship-to-Shore Power Systems Feichun's FLEXIFESTOON® SOOW EPDM/CPE Marine-Grade represents a chemistry-driven upgrade of the proven UL/CSA SOOW platform, specifically re-engineered for the corrosive salt-fog, hydrocarbon-spray, and ozone-rich microclimate of modern container terminals and quayside cargo handling. The cable consolidates four engineering imperatives into a single rubber-jacketed architecture: a marine-grade EPDM ethylene-propylene-diene insulation system providing exceptional dielectric stability under prolonged moisture immersion; a chlorinated polyethylene (CPE) outer sheath whose chlorine backbone delivers inherent halide-resistance, hydrolysis stability, and ozone immunity surpassing standard thermoplastic compounds; finely-stranded Class K bunched red copper conductors per ASTM B-174 enabling 4×D minimum bending radius and >2 million flex-cycle service in dynamic festoon and reeling applications; and full multi-jurisdictional certification including UL Standard 62, CSA 22.2 No. 49, NEC Article 400, NEC 501.140 Class I Division 1 and 2, FT2 vertical flame propagation, and MSHA P-7K-123456 mining approval — supporting global port deployment from the Port of Long Beach to Jebel Ali, Rotterdam Maasvlakte II, and Yangshan Phase IV automated terminals.
Technical Department
on15/05/2026

FLEXIFESTOON® SOOW

FLEXIFESTOON® SOOW EPDM/CPE Marine-Grade: Salt-Fog Resistant Heavy-Duty Rubber Port Cable for STS Cranes, RTG/RMG Gantries, and Ship-to-Shore Power Systems Feichun’s FLEXIFESTOON® SOOW EPDM/CPE Marine-Grade represents a chemistry-driven upgrade of the proven UL/CSA SOOW platform, specifically re-engineered for the corrosive salt-fog, hydrocarbon-spray, and ozone-rich microclimate of modern container terminals and quayside cargo handling. The cable consolidates four engineering imperatives into a single rubber-jacketed architecture: a marine-grade EPDM ethylene-propylene-diene insulation system providing exceptional dielectric stability under prolonged moisture immersion; a chlorinated polyethylene (CPE) outer sheath whose chlorine backbone delivers inherent halide-resistance, hydrolysis stability, and ozone immunity surpassing standard thermoplastic compounds; finely-stranded Class K bunched red copper conductors per ASTM B-174 enabling 4×D minimum bending radius and >2 million flex-cycle service in dynamic festoon and reeling applications; and full multi-jurisdictional certification including UL Standard 62, CSA 22.2 No. 49, NEC Article 400, NEC 501.140 Class I Division 1 and 2, FT2 vertical flame propagation, and MSHA P-7K-123456 mining approval — supporting global port deployment from the Port of Long Beach to Jebel Ali, Rotterdam Maasvlakte II, and Yangshan Phase IV automated terminals.
9 Min Read
GAALFLEX® TRAY VFD 1520: UL-Certified 1000V Tinned Copper Cable Tray Variable Frequency Drive Inverter Connection Cable for International Cable Tray Industrial Systems Using Metric Tinned Copper Conductor Sizing (IEC 60228 Class 5 Tinned Copper per DIN VDE 0295 Providing Enhanced Corrosion Resistance and Oxidation Protection), Frequency Converter Integration, Hazardous-Area Installations, and Aggressive Environmental Exposure (1000 V Nominal Voltage [UL WTTC Rating], UL Type TC-ER c(UL) Type CIC FT4 Fire Classification Certification, Comprehensive Dual-Configuration Portfolio [4-Core and 3+3 Earth Conductor Versions], 1.5–240 mm² Conductor Range Enabling Complete International Tray VFD Specification from Control Circuits Through Maximum Industrial Motor Systems, Flexible Class 5 Tinned Copper per IEC 60228 / DIN VDE 0295 Providing Superior Corrosion Resistance Versus Bare Copper in Salt-Spray, Chemical Vapor, and Moisture-Intensive Environments, GAALTHERM® 530 Special Insulation Providing Electrical Stability and Flame-Retardant Performance, Aluminum Tape + PETP Foil + Tinned Copper Braid + Tinned Copper Drain Wire Triple-Layer Shielding Providing Effective EMI Suppression and Signal Integrity, High-Strength Ripcord Under Outer Sheath Enabling Field Installation, Black RAL 9005 CPE [Chloroprene Elastomer] Halogen-Free Outer Sheath with UV Resistance Enabling Aggressive Outdoor Industrial Installation in Salt-Spray Coastal, Chemical Processing, and Humid Tropical Environments Without Additional Corrosion Protection, Temperature Range −25 to +90°C [Fixed and Flexible Installation] with 6×D Minimum Bending Radius Supporting Cable Tray Routing, UL Type TC-ER Approval Enabling International Tray Installation, Oil Resistance Grade I per UL 1277, Electromagnetic Compatibility per EN 55011 / DIN VDE 0875 / EN 61800-3, Self-Extinguishing and Flame-Retardant per c(UL) FT4 Vertical Flame Propagation Testing, Optional UL 1277 60°C 600V Upgrade Available, MSHA [Mine Safety and Health Administration] Approval for Hazardous-Area Mining Applications, RoHS Approved, UL/CSA Standards Compliance [ASTM B-3, UL 66, UL 83, UL 1277, CSA C22.2 230/239], and Complete International VFD Infrastructure Compliance Enabling OEM Tray Cable Integration and Process Automation Acceptance in Salt-Spray, Chemical, and Corrosion-Intensive Industrial Environments)
Technical Department
on09/05/2026

GAALFLEX® TRAY VFD 1520

GAALFLEX® TRAY VFD 1520: UL-Certified 1000V Tinned Copper Cable Tray Variable Frequency Drive Inverter Connection Cable for International Cable Tray Industrial Systems Using Metric Tinned Copper Conductor Sizing (IEC 60228 Class 5 Tinned Copper per DIN VDE 0295 Providing Enhanced Corrosion Resistance and Oxidation Protection), Frequency Converter Integration, Hazardous-Area Installations, and Aggressive Environmental Exposure (1000 V Nominal Voltage [UL WTTC Rating], UL Type TC-ER c(UL) Type CIC FT4 Fire Classification Certification, Comprehensive Dual-Configuration Portfolio [4-Core and 3+3 Earth Conductor Versions], 1.5–240 mm² Conductor Range Enabling Complete International Tray VFD Specification from Control Circuits Through Maximum Industrial Motor Systems, Flexible Class 5 Tinned Copper per IEC 60228 / DIN VDE 0295 Providing Superior Corrosion Resistance Versus Bare Copper in Salt-Spray, Chemical Vapor, and Moisture-Intensive Environments, GAALTHERM® 530 Special Insulation Providing Electrical Stability and Flame-Retardant Performance, Aluminum Tape + PETP Foil + Tinned Copper Braid + Tinned Copper Drain Wire Triple-Layer Shielding Providing Effective EMI Suppression and Signal Integrity, High-Strength Ripcord Under Outer Sheath Enabling Field Installation, Black RAL 9005 CPE [Chloroprene Elastomer] Halogen-Free Outer Sheath with UV Resistance Enabling Aggressive Outdoor Industrial Installation in Salt-Spray Coastal, Chemical Processing, and Humid Tropical Environments Without Additional Corrosion Protection, Temperature Range −25 to +90°C [Fixed and Flexible Installation] with 6×D Minimum Bending Radius Supporting Cable Tray Routing, UL Type TC-ER Approval Enabling International Tray Installation, Oil Resistance Grade I per UL 1277, Electromagnetic Compatibility per EN 55011 / DIN VDE 0875 / EN 61800-3, Self-Extinguishing and Flame-Retardant per c(UL) FT4 Vertical Flame Propagation Testing, Optional UL 1277 60°C 600V Upgrade Available, MSHA [Mine Safety and Health Administration] Approval for Hazardous-Area Mining Applications, RoHS Approved, UL/CSA Standards Compliance [ASTM B-3, UL 66, UL 83, UL 1277, CSA C22.2 230/239], and Complete International VFD Infrastructure Compliance Enabling OEM Tray Cable Integration and Process Automation Acceptance in Salt-Spray, Chemical, and Corrosion-Intensive Industrial Environments)
5 Min Read
EPN 78 3,6/6 kV is a medium voltage (MV) flexible reeling cable specifically engineered for open-cast mining operations. This cable features a three-core design with three protective-earth conductors positioned in the outer interstices, providing reliable grounding protection for heavy mobile equipment. The designation "EPN 78" follows the Serbian/Yugoslav cable designation system (SRPS N.C5.374), indicating its robust construction for demanding mining environments.
Technical Department
on17/12/2025

What is EPN 78 3,6/6 kV Mining & Tunneling MV Flexible Reeling Cable?

EPN 78 3,6/6 kV is a medium voltage (MV) flexible reeling cable specifically engineered for open-cast mining operations. This cable features a three-core design with three protective-earth conductors positioned in the outer interstices, providing reliable grounding protection for heavy mobile equipment. The designation “EPN 78” follows the Serbian/Yugoslav cable designation system (SRPS N.C5.374), indicating its robust construction for demanding mining environments.