无抗扭保护隧道柔性聚氨酯电缆
该电缆为无卤柔性电力电缆，专为存在高机械损伤风险的采矿和隧道移动设备供电而设计。由于没有抗扭保护，适用于仅在单一平面内偏转的应用场合，最大运行速度为60米/分钟。
TUNNELFLEX-PUR HF WITHOUT ANTITWISTING PROTECTION I 1 KV 无抗扭保护隧道柔性聚氨酯电缆
Product Overview 产品概述
The TUNNELFLEX-PUR HF represents a specialized category of halogen-free flexible power cables engineered for mobile equipment operating in mining and tunnelling environments where high mechanical damage risk is inherent. This cable variant, manufactured without antitwisting protection elements, is optimally designed for applications where cable deflection occurs predominantly in a single plane, eliminating the need for complex anti-torsion structures while maintaining robust mechanical performance and safety characteristics critical to underground operations.
该电缆为无卤柔性电力电缆，专为存在高机械损伤风险的采矿和隧道移动设备供电而设计。由于没有抗扭保护，适用于仅在单一平面内偏转的应用场合，最大运行速度为60米/分钟。
Technical Specifications 技术规格
Standard Cable Configurations 标准电缆配置
| Configuration 配置 | Conductor Ø (mm) 导体直径 | Cable Ø Min (mm) 最小电缆直径 | Cable Ø Max (mm) 最大电缆直径 | Cable Weight (kg/km) 电缆重量 | Max Tensile Strength (N) 最大抗拉强度 | Bending Radius Fixed Min (mm) 弯曲半径 | Current Capacity (A) 载流量 |
|---|---|---|---|---|---|---|---|
| 4G10 | 4.0 | 18.0 | 20.0 | 580 | 800 | 120 | 74 |
| 4G16 | 5.1 | 20.0 | 22.0 | 870 | 1,280 | 132 | 99 |
| 3×25+3G6 | 6.5 | 22.5 | 24.0 | 1,120 | 1,500 | 144 | 131 |
| 3×35+3G6 | 7.5 | 25.5 | 28.0 | 1,490 | 2,100 | 168 | 162 |
| 3×50+3G10 | 9.1 | 29.5 | 32.0 | 2,100 | 3,000 | 192 | 202 |
| 3×70+3G16 | 10.8 | 34.0 | 37.0 | 2,960 | 4,200 | 222 | 250 |
| 3×95+3G16 | 12.1 | 37.5 | 40.5 | 3,640 | 5,700 | 243 | 301 |
| 3×120+3G25 | 14.3 | 42.0 | 45.0 | 4,750 | 7,200 | 270 | 352 |
| 3×150+3G25 | 16.1 | 47.5 | 50.5 | 5,740 | 9,000 | 303 | 404 |
| 3×185+3G35 | 17.5 | 52.0 | 55.0 | 6,960 | 11,100 | 330 | 461 |
| 3×240+3G50 | 19.9 | 58.0 | 61.0 | 9,130 | 14,400 | 366 | 540 |
Configurations with Control Cores 带控制芯线配置
| Configuration 配置 | Conductor Ø (mm) 导体直径 | Cable Ø Min (mm) 最小电缆直径 | Cable Ø Max (mm) 最大电缆直径 | Cable Weight (kg/km) 电缆重量 | Max Tensile Strength (N) 最大抗拉强度 | Bending Radius Fixed Min (mm) 弯曲半径 | Current Capacity (A) 载流量 |
|---|---|---|---|---|---|---|---|
| 3×25+3G6+2×1 | 6.5 | 22.5 | 24.0 | 1,150 | 1,500 | 144 | 131 |
| 3×35+3G6+2×1.5 | 7.5 | 26.0 | 28.0 | 1,530 | 2,100 | 168 | 162 |
| 3×50+3G10+2×1.5 | 9.1 | 29.5 | 32.0 | 2,130 | 3,000 | 192 | 202 |
| 3×70+3G16+2×1.5 | 10.8 | 34.0 | 37.0 | 2,990 | 4,200 | 222 | 250 |
| 3×95+3G16+2×1.5 | 12.1 | 37.5 | 40.5 | 3,670 | 5,700 | 243 | 301 |
| 3×120+3G25+2×1.5 | 14.3 | 42.0 | 45.0 | 4,780 | 7,200 | 270 | 352 |
| 3×150+3G25+2×1.5 | 16.1 | 47.5 | 50.5 | 5,780 | 9,000 | 303 | 404 |
| 3×185+3G35+2×1.5 | 17.5 | 52.0 | 55.0 | 7,000 | 11,100 | 330 | 461 |
| 3×240+3G50+2×1.5 | 19.9 | 58.0 | 61.0 | 9,170 | 14,400 | 366 | 540 |
Structural Components 结构组成
The Class 5 conductor designation per IEC 60228 represents the most flexible category of stranded conductors, essential for mobile cable applications requiring repeated flexing. Source: IEC 60228 Standard
Standards & Approvals 标准和认证
DIN EN 60228 / IEC 60228 / VDE 0295 – Conductors of insulated cables. This fundamental international standard establishes requirements for conductor materials, construction, dimensions, and electrical resistance values. Class 5 conductors specified in this standard provide the highest flexibility for applications requiring frequent bending and movement.
DIN VDE 0298-300 – Core identification standards establishing uniform color coding systems. Consistent core identification is critical in underground mining installations where maintenance personnel must quickly and accurately identify conductors during troubleshooting, repair, or modification work under challenging visibility conditions.
IEC 60754-1 – Test on gases evolved during combustion of materials from cables – Part 1: Determination of the halogen acid gas content. This critical test method determines the amount of halogen acid gas released during cable combustion. Cables meeting halogen-free criteria release less than 5 mg/g of halogen acid when burned, significantly reducing toxic gas hazards in confined underground spaces.
DIN EN 60332-1-2 / IEC 60332-1-2 – Fire performance testing for single vertical insulated wire or cable. This test subjects a single cable to a standardized 1 kW flame for 60 seconds to verify that the cable will self-extinguish and not propagate flame beyond specified limits, essential for preventing fire spread in underground tunnels.
The IEC 60754-1 standard addresses a critical safety concern in underground environments. During combustion, halogenated materials release hydrogen chloride, hydrogen bromide, and other corrosive, toxic gases that severely impede evacuation efforts and cause extensive damage to electronic equipment and infrastructure. Source: IEC Webstore – IEC 60754-1. Cables releasing less than 5 mg/g halogen acid are classified as halogen-free (LSOH – Low Smoke Zero Halogen), while those between 5-15 mg/g are low halogen (LSF – Low Smoke Fume).
Fire testing according to IEC 60332-1-2 requires that flame damage not exceed 50mm from the upper mounting point, and the cable must self-extinguish within a defined period after flame source removal. Source: VTEC Laboratories. This ensures cables do not become fuel sources that could transform a localized incident into a major fire event.
Thermal Parameters 热特性参数
Chemical & Fire Behavior Parameters 化学和燃烧特性参数
According to IEC 60754-1 testing methodology, cable samples are combusted at 800°C and the evolved gases are collected and analyzed for halogen acid content. Materials releasing less than 5 mg/g qualify as halogen-free. Source: EN Standard – BS EN 60754-1
Mechanical Parameters 机械参数
The VDE 0298-3 standard establishes minimum bending radii to prevent mechanical damage during installation and operation. Bending cables to radii smaller than specified values can cause conductor strand breakage, insulation cracking, and premature cable failure. Source: HalleyCables – VDE 0298-3 Bending Radius. The 10 x D requirement for drum applications reflects the more severe mechanical stress imposed by repeated winding and unwinding cycles compared to fixed installations.
Electrical Parameters 电气参数
The voltage designation 0.6/1 kV indicates the cable is rated for 600V between any conductor and ground, and 1000V between phase conductors. The Um value of 1.2 kV represents the maximum voltage the system may experience, typically 20% above nominal to account for voltage regulation variations and transient overvoltages.
Application Guidelines 应用指南
The TUNNELFLEX-PUR HF cable is engineered for power supply to mobile equipment operating in mining and tunnelling environments characterized by high mechanical damage risk. The cable’s halogen-free polyurethane outer sheath provides exceptional resistance to the abrasion, tearing, oil exposure, and chemical contact commonly encountered in underground operations. The maximum travel speed of 60 meters per minute accommodates typical mobile mining equipment velocities while ensuring the cable experiences manageable mechanical stress levels.
该电缆用于在采矿和隧道环境中为存在高机械损伤风险的移动设备供电。由于没有抗扭保护，适用于仅在单一平面内偏转的应用。最大运行速度为60米/分钟。
The absence of antitwisting protection elements makes this cable particularly suitable for applications such as conveyor systems moving in straight lines, shuttle cars traveling along fixed rail paths, ventilation fan installations where cables hang vertically with minimal lateral movement, and other scenarios where cable motion is constrained to predominantly linear or single-plane curved paths. This design choice reduces cable weight, diameter, and cost while maintaining necessary mechanical strength for the intended application envelope.
Mining cables must address unique environmental challenges including limited ventilation, presence of moisture and mineral dust, mechanical abuse from equipment and falling debris, and the critical safety requirement that cables do not contribute to fire propagation or produce toxic fumes during emergency situations. Source: Mining Cables Technical Reference
Installation Considerations 安装注意事项
Proper installation of TUNNELFLEX-PUR HF cables requires attention to several critical factors. The minimum bending radius of 6 x D for fixed installations and 10 x D for drum mounting must be strictly observed to prevent insulation damage and conductor stress. Installation personnel should verify that cable routes involve primarily single-plane deflection, as the absence of antitwisting protection makes this cable unsuitable for applications involving rotation or multi-dimensional movement.
Ambient temperature during installation should be maintained between -30°C and +80°C for mobile applications. At temperatures below the minimum specification, the cable sheath becomes less flexible and more susceptible to cracking during handling. Cable pulling tensions should not exceed the maximum tensile strength values specified for each configuration, and appropriate strain relief must be provided at termination points to prevent mechanical stress concentration.
Contact Information 联系方式
Company: Anhui Feichun Special Cable Co., Ltd. (安徽飞纯特种电缆有限公司)
WhatsApp: +86 13855 123218
Technical Email: [email protected]
Sales Contact: [email protected]
Engineering Contact: [email protected]
