Flexible Low Voltage Reeling Cable with Halogen-Free Polyurethane Sheath
TROMMELFLEX-M-PUR柔性低压卷筒电缆 · 无卤聚氨酯护套 · 地下采矿专用
TROMMELFLEX-M-PUR BRAIDED D2X11Y 1 KV
安徽飞纯特种电缆有限公司
Product Overview 产品概述
TROMMELFLEX-M-PUR represents a specialized category of flexible low voltage reeling cables engineered specifically for the demanding conditions of underground mining and tunneling operations. This cable features optimized dimensions and a flame-retardant, halogen-free polyurethane outer sheath, making it ideal for power supply to mobile underground equipment including drilling machines, Load-Haul-Dump (LHD) loaders, and scoops that operate under frequently changing dynamic loads during reeling operations.
TROMMELFLEX-M-PUR电缆是专为地下采矿和隧道作业的苛刻条件而设计的特种柔性低压卷筒电缆。该电缆具有优化的尺寸设计和阻燃、无卤聚氨酯外护套，特别适合为钻机、装载-运输-卸载（LHD）装载机和铲运机等移动地下设备提供电力，这些设备在卷绕操作中承受频繁变化的动态负载。
Key Features: Halogen-Free & Optimized Dimensions 关键特性：无卤设计与优化尺寸
HALOGEN-FREE PUR SHEATH OPTIMIZED SIZE ABRASION RESISTANT
The TROMMELFLEX-M-PUR cable’s halogen-free polyurethane sheath provides exceptional advantages in underground mining environments. Unlike conventional cables with PVC or rubber sheaths, the PUR-HF (halogen-free) construction ensures that in the event of fire, the cable releases minimal toxic and corrosive gases, protecting both personnel and sensitive equipment in confined underground spaces. The optimized dimensions allow for smaller cable reeling drums, reducing equipment size and installation costs while maintaining the robust mechanical properties required for underground trailing applications.
与传统的PVC或橡胶护套电缆不同，TROMMELFLEX-M-PUR的无卤聚氨酯护套在发生火灾时释放的有毒和腐蚀性气体最少，在狭窄的地下空间中保护人员和敏感设备。优化的尺寸设计允许使用更小的电缆卷筒，降低设备尺寸和安装成本，同时保持地下拖曳应用所需的坚固机械性能。
Applications & Target Equipment 应用场合与目标设备
TROMMELFLEX-M-PUR cables are specifically designed for underground mining and tunneling equipment that requires continuous flexible power supply during dynamic operations. According to industry research on underground mining equipment, LHD loaders represent one of the most critical applications for these cables, as they operate with flexible trailing cables that must withstand constant reeling and unreeling cycles while the machine loads, hauls, and dumps broken rock throughout the mine workings.
LHD Loaders 装载-运输-卸载机
Load-Haul-Dump machines are low-profile underground loaders designed to move broken rock efficiently through confined mine workings. Electric LHDs typically operate at 380-550 volts and use flexible trailing cables with reeling/unreeling facilities to feed power. The TROMMELFLEX-M-PUR cable’s small diameter and high flexibility make it ideal for the 100-meter cable lengths commonly used with LHD equipment.
Underground Drilling Machines 地下钻机
Drilling machines used for development, production drilling, and ground support installation require flexible power cables that can withstand the continuous reeling operations as the machine advances through the mine. The cable must handle abrasion from contact with rough rock surfaces and maintain electrical performance despite repeated bending cycles.
Scoop Trams 铲运机
Scoop trams (another term for LHD loaders) are the workhorses of underground mining, used for mucking operations in narrow headings where space is limited. The articulated design and continuous operation require cables with excellent flexibility, small bending radius, and resistance to mechanical stress from trailing operations.
Tunneling Equipment 隧道掘进设备
Tunnel boring machines and roadheaders require reliable power cables that can handle the demanding conditions of tunneling operations including exposure to water, abrasive materials, and continuous machine movement. The halogen-free sheath ensures safety in the confined tunnel environment.
Standards & Approvals 标准与认证
- DIN EN 60228 / IEC 60228 / VDE 0295 – Conductor specifications defining conductor classes and resistance values for flexible cables
- DIN VDE 0298-300 – Core identification standards for power cables ensuring proper installation and maintenance
- IEC 60502-1 – Compound specifications for insulation and sheathing materials used in power cables
- DIN VDE 0298-4 – Electrical parameters including current carrying capacity and voltage drop calculations
- DIN EN 60332-1-2 / IEC 60332-1-2 – Fire performance testing for vertical flame propagation, ensuring cables do not support flame spread
Note: Compliance with these internationally recognized standards ensures the TROMMELFLEX-M-PUR cable meets the stringent safety and performance requirements of underground mining operations worldwide. The halogen-free designation is particularly important for confined space applications where toxic gas generation must be minimized in fire scenarios.
Cable Construction 电缆结构
The TROMMELFLEX-M-PUR cable features an advanced multi-layer construction specifically optimized for underground mining reeling applications. The use of XLPE (cross-linked polyethylene) insulation combined with polyurethane sheathing provides superior mechanical and chemical resistance compared to traditional rubber-insulated cables, while the central aramid reinforcement ensures the cable can withstand the high tensile loads encountered during reeling operations.
Layer-by-Layer Construction 逐层结构说明
Central Aramid Element 中央芳纶元件
High-strength aramid fiber carrier element positioned at the cable center provides exceptional tensile strength and prevents conductor elongation during reeling operations. The aramid reinforcement allows the cable to support its own weight and resist pulling forces up to 25 N/mm².
Conductor 导体
Finely stranded bare copper conductor, Class 5 according to IEC 60228. The fine stranding (many thin wires) provides maximum flexibility essential for continuous bending during reeling cycles while maintaining excellent electrical conductivity and mechanical durability.
XLPE Insulation XLPE绝缘
Cross-linked polyethylene (XLPE) provides excellent electrical insulation with superior thermal performance (90°C continuous, 250°C short circuit). XLPE offers better resistance to water, chemicals, and thermal aging compared to conventional PVC or rubber insulation materials.
Core Arrangement 芯线排列
Three main conductors (brown, black, grey) laid up together with split earth conductor in the interstices around the central aramid carrier. The cores are twisted with very short length of lay, providing enhanced flexibility and preventing individual conductor stress during bending.
Earth Conductor 接地导体
Split earth conductors positioned in the interstices between power cores provide comprehensive grounding throughout the cable length, essential for personnel safety in underground mining environments. The earth conductors are sized according to IEC standards for adequate fault protection.
Inner Sheath 内护套
Halogen-free polymer inner sheath provides additional mechanical protection for the conductor assembly and serves as a barrier against moisture ingress. This layer also helps maintain the cable’s round cross-section during bending operations.
Braiding 编织层
Textile braiding between inner and outer sheaths provides anti-twist protection and additional tensile strength. The braiding helps distribute mechanical stresses evenly across the cable and prevents the outer sheath from rotating relative to the inner core assembly during torsional loading.
Outer Sheath PUR 外护套聚氨酯
Special polyurethane (PUR) outer sheath, flame-resistant and halogen-free. The PUR sheath provides outstanding resistance to abrasion, oils, chemicals, UV radiation, and ozone while remaining flexible at low temperatures down to -30°C. The halogen-free formulation ensures minimal toxic gas generation in fire scenarios.
Technical Parameters 技术参数
Thermal Parameters 热参数
| Parameter 参数 | Value 数值 | Notes 备注 |
|---|---|---|
| Max. conductor temperature 最大导体温度 | 90°C | Continuous operation 连续运行 |
| Max. conductor temperature at short circuit 短路时最大导体温度 | 250°C | Short-term condition (5 seconds) 短时状态（5秒） |
| Ambient temperature fixed installation (min) 固定安装最低环境温度 | -40°C | Static application 静态应用 |
| Ambient temperature fixed installation (max) 固定安装最高环境温度 | 80°C | Static application 静态应用 |
| Ambient temperature flexible installation (min) 移动安装最低环境温度 | -30°C | Dynamic reeling operation 动态卷绕操作 |
| Ambient temperature flexible installation (max) 移动安装最高环境温度 | 80°C | Dynamic reeling operation 动态卷绕操作 |
Chemical & Environmental Parameters 化学与环境参数
| Property 性能 | Performance 表现 | Significance 重要性 |
|---|---|---|
| Halogen free 无卤 | Yes 是 | Critical for underground safety – minimal toxic gas in fire |
| Ozone resistance 耐臭氧性 | Yes 是 | Prevents degradation in environments with electrical equipment |
| Resistant to UV 抗紫外线 | Yes 是 | Suitable for portal areas with natural light exposure |
| Max. water depth 最大浸水深度 | 10 m | Can operate in flooded mine sections and tunnel construction |
Mechanical Parameters 机械参数
| Parameter 参数 | Value 数值 | Application Relevance 应用相关性 |
|---|---|---|
| Torsional stress 扭转应力 | +/- 50°/m | Handles cable twisting during equipment articulation and movement |
| Permanent tensile strength 永久抗拉强度 | 25 N/mm² | Higher than medium voltage cables due to optimized construction |
| Travel speed (reeling operation underground) 卷绕操作速度（地下） | 100 m/min | Matches typical LHD loader tramming speeds in underground mines |
| Bending radius (fixed installation) 弯曲半径（固定安装） | 4 × D (Acc. to VDE 0298-3) | Compact installation in confined underground spaces |
| Bending radius (reeling operation) 弯曲半径（卷绕操作） | 8 × D | Smaller than traditional cables, enables smaller drum diameters |
Electrical Parameters 电气参数
| Parameter 参数 | Value 数值 | Notes 备注 |
|---|---|---|
| Rated voltage U₀/U (Uₘ) 额定电压 | 0.6/1 (1.2) kV | Low voltage classification |
| Test voltage 试验电压 | 2.5 kV | AC test voltage for power cores |
| AC test voltage (control cores) 控制芯线试验电压 | 2 kV | For cables with integrated control conductors |
| Nominal voltage U 标称电压 | 1,000 V | Typical for underground mining equipment |
Cable Properties – Detailed Specifications 电缆性能详细规格
The following table provides comprehensive technical specifications for various TROMMELFLEX-M-PUR cable configurations. Each configuration is optimized for specific current requirements and application needs in underground mining. The D2X11Y designation indicates the cable construction type, with optimized dimensions allowing for smaller cable reels and reduced equipment costs compared to traditional NSHTÖU cables.
TROMMELFLEX-M-PUR D2X11Y 0.6/1KV Specifications
| Construction 构造 | Conductor Ø 导体直径 (mm) | Cable Ø (min) 电缆最小外径 (mm) | Cable Ø (max) 电缆最大外径 (mm) | Cable Weight 电缆重量 (kg/km) | Max. Tensile 最大抗拉强度 (N) | Bending Radius 弯曲半径 (mm) | Resistance 电阻 at 20°C (Ω/km) | Current 载流量 (A) |
|---|---|---|---|---|---|---|---|---|
| 3×25+3G6 | 6.2 | 23 | 25 | 1,215 | 1,875 | 200 | 0.78 | 131 |
| 3×50+3G10 | 9.6 | 30.5 | 32.5 | 2,250 | 3,750 | 260 | 0.386 | 202 |
| 3×70+3G16 | 11.1 | 35.5 | 37.5 | 3,210 | 5,250 | 300 | 0.272 | 250 |
| 3×95+3G16 | 12.6 | 39.5 | 42.5 | 3,925 | 7,125 | 340 | 0.206 | 301 |
| 3×25+3G6+2X1 | 6.2 | 23 | 24.5 | 1,243 | 1,875 | 196 | 0.78 | 131 |
| 3×35+3G6+2X1,5 | 7.8 | 26.5 | 28 | 1,570 | 2,100 | 224 | 0.554 | 162 |
| 3×50+3G10+2X1,5 | 9.6 | 30.5 | 32.5 | 2,376 | 3,750 | 260 | 0.386 | 202 |
| 3×70+3G16+2X1,5 | 11.1 | 35.5 | 37.5 | 3,355 | 5,250 | 300 | 0.272 | 250 |
| 3×95+3G16+2X1,5 | 12.6 | 40 | 42.5 | 4,059 | 7,125 | 340 | 0.206 | 301 |
| 3×120+3G25+2X1,5 | 14.8 | 44.5 | 47 | 5,291 | 9,000 | 376 | 0.161 | 352 |
| 3×150+3G25+2X1,5 | 16 | 49.5 | 52.5 | 6,358 | 11,250 | 420 | 0.129 | 404 |
| 3×185+3G35+2X1,5 | 17.7 | 54 | 56.5 | 8,030 | 13,875 | 452 | 0.106 | 461 |
| 3×240+3G50+2X1,5 | 20.2 | 62 | 65 | 10,560 | 18,000 | 520 | 0.0801 | 540 |
| 4×16 | 5.1 | 22 | 23.5 | 900 | 1,600 | 188 | 1.21 | 99 |
Note on Cable Configurations 电缆配置说明: The “3G” designation indicates three earth conductors, while “+2X1” or “+2X1.5” indicates additional control cores for remote operation, pilot wire earth continuity monitoring, or auxiliary control circuits common in LHD loaders and drilling machines. The 4×16 configuration provides a compact solution for lighter-duty applications or auxiliary equipment.
Technical Advantages for Underground Mining 地下采矿技术优势
The TROMMELFLEX-M-PUR cable incorporates several advanced engineering features that provide significant operational advantages in underground mining environments. Research on polyurethane sheathed cables demonstrates that PUR-HF cables offer superior performance compared to traditional rubber (NSHTÖU) cables, particularly in applications requiring frequent reeling cycles and exposure to harsh underground conditions.
Optimized Dimensions 优化尺寸
The use of XLPE insulation and PUR sheathing allows for significantly smaller outside diameters compared to traditional rubber-insulated cables. This enables the use of smaller, more cost-effective cable reeling drums, reducing the size and weight of equipment that must be transported underground and lowering capital equipment costs.
Superior Abrasion Resistance 卓越耐磨性
Polyurethane sheathing provides exceptional resistance to abrasion, cuts, and tears compared to conventional rubber materials. In trailing operations where the cable drags across rough underground surfaces, this dramatically extends cable service life and reduces the frequency of cable replacements, lowering operational costs.
Enhanced Safety – Halogen-Free 增强安全性-无卤
The halogen-free construction ensures minimal toxic and corrosive gas generation in fire scenarios. In confined underground spaces where ventilation is limited and evacuation routes may be restricted, this feature significantly improves personnel safety and reduces damage to expensive mining equipment and infrastructure.
Reduced Weight 减轻重量
TROMMELFLEX-M-PUR cables are significantly lighter than equivalent rubber-insulated cables. The reduced weight decreases the load on cable reeling systems, extends equipment service life, reduces energy consumption during reeling operations, and simplifies cable handling during installation and maintenance.
Chemical Resistance 化学耐受性
The PUR sheath provides outstanding resistance to oils, hydraulic fluids, coolants, and other chemicals commonly encountered in underground mining. This resistance prevents sheath degradation and maintains cable integrity even when exposed to petroleum products from hydraulic systems on LHD loaders and drilling equipment.
Wide Temperature Range 宽温度范围
With operating capability from -30°C to +80°C in dynamic applications, the cable performs reliably in cold underground environments (particularly in mines at high elevations or in cold climates) as well as in high-temperature zones near geothermal gradients or equipment generating significant heat.
Comparison with Traditional Cables 与传统电缆的比较
| Feature 特性 | TROMMELFLEX-M-PUR | Traditional NSHTÖU | Advantage 优势 |
|---|---|---|---|
| Outer diameter 外径 | Optimized (smaller) 优化（更小） | Standard (larger) 标准（更大） | Enables smaller reels and lower equipment costs |
| Weight 重量 | Lighter 更轻 | Heavier 更重 | Easier handling, reduced reel motor load |
| Bending radius 弯曲半径 | 8D (reeling) 8倍直径（卷绕） | 10-12D (typical) 10-12倍直径（典型） | More flexible, smaller drums possible |
| Abrasion resistance 耐磨性 | Excellent (PUR) 优秀（聚氨酯） | Good (rubber) 良好（橡胶） | Extended service life in trailing operations |
| Halogen content 卤素含量 | Halogen-free 无卤 | Contains halogens 含卤素 | Safer in fire – minimal toxic gases |
| Chemical resistance 化学耐受 | Excellent (PUR) 优秀（聚氨酯） | Good (rubber) 良好（橡胶） | Better resistance to oils and hydraulic fluids |
| Low temp flexibility 低温柔韧性 | -30°C 零下30摄氏度 | -25°C (typical) 零下25摄氏度（典型） | Maintains flexibility in colder mines |
Contact Information 联系方式
For technical inquiries, quotations, custom cable configurations, or to discuss specific underground mining cable requirements, please contact Anhui Feichun Special Cable Co., Ltd. through any of the following channels. Our engineering team can provide detailed specifications and application support for your mining equipment.
References & Standards 参考文献与标准
- Eland Cables. “PUR-HF Festoon Cables – For heavy industrial applications involving reeling.” Product Overview. Eland PUR-HF Cables
- Feichun Cable. “What is Mining, Drilling & Tunnelling Cable? Solutions for Surface, Sub-Surface & Underground Operations.” Technical Blog. January 2026. Mining Cable Solutions
- Power and Cables. “Mining Cables Trailing Flexible Reeling – Underground and surface mine cables.” Product Guide. February 2025. Mining Cable Guide
- Wikipedia. “LHD (load, haul, dump machine) – Underground Mining Equipment.” November 2023. LHD Equipment Overview
- An Underground Miner. “What is a Mining LHD? (Load-Haul-Dump)” Technical Article. December 2021. Mining LHD Guide
- VERI Cable. “Underground Mining Tunnel Cable Leading Manufacturer.” Product Catalog. December 2024. Underground Mining Cables
- SAB Cable. “DR 720 P Highflex – Reeling Cable with PUR jackets offering superior resistance to abrasion.” SAB Reeling Cables
- International Electrotechnical Commission. “IEC 60228:2004 – Conductors of insulated cables.” IEC Standards Database.
- International Electrotechnical Commission. “IEC 60332-1-2 – Tests on electric and optical fibre cables under fire conditions – Part 1-2: Test for vertical flame propagation.” IEC Standards.
- VDE Verlag. “DIN VDE 0298-4 – Use of cables and flexible cords in power installations – Part 4: Recommended values for current-carrying capacity.” German Standards.
