Technical Specifications for Rock Bolting Rig Trailing Cables
阿特拉斯·科普柯 Boltec 锚杆钻机：送进电缆选型与更换指南 — 安徽飞纯特种电缆有限公司
Atlas Copco Boltec: Feed Cable Selection & Replacement Guide
Technical Specifications for Rock Bolting Rig Trailing Cables
阿特拉斯·科普柯 Boltec 锚杆钻机：送进电缆选型与更换指南 — 安徽飞纯特种电缆有限公司
Introduction to Atlas Copco Boltec Series 介绍
The Atlas Copco Boltec series represents a range of mechanized rock bolting rigs designed for underground mining and tunneling operations. These machines are engineered to install rock bolts efficiently in challenging subterranean environments, requiring robust electrical systems capable of withstanding extreme mechanical stress, moisture exposure, and continuous operational demands.
The feed cable (also referred to as the trailing cable or reeling cable) is a critical component that delivers electrical power from the mine’s distribution system to the rig’s onboard systems. When replacing an aging or damaged feed cable on older Boltec models, proper cable selection ensures operational safety, regulatory compliance, and optimal machine performance.
This guide covers cable replacement considerations for Boltec models including Boltec 235, Boltec MC, Boltec S, and legacy Boltec units operating in underground hard rock mining environments.
Technical Requirements & Specifications 技术要求与规格
Feed cables for rock bolting equipment must meet stringent performance criteria defined by international mining safety standards. The following parameters represent typical requirements for Boltec-compatible trailing cables based on industry standards and OEM specifications.
Recommended Cable Specifications 推荐电缆规格
| Parameter 参数 | Specification 规格 | Standard Reference 标准参考 |
|---|---|---|
| Cable Type 电缆类型 | Type G-GC / Type SHD-GC | ICEA S-75-381 / NEMA WC 58[1] |
| Voltage Rating 电压等级 | 2kV (2000V) | MSHA 30 CFR Part 18[2] |
| Conductor 导体 | Class K Flexible Stranded Copper | IEC 60228[3] |
| Insulation 绝缘层 | EPR (90°C rated) | IEC 60502-1[4] |
| Ground Check Conductor 接地检测导体 | Required for mobile equipment | AS/NZS 1802[5] |
| Flame Retardancy 阻燃性 | IEC 60332-1-2 Compliant | IEC 60332[6] |
| Oil Resistance 耐油性 | MSHA Approved | 30 CFR §18.64[2] |
Always verify specific cable requirements with your Atlas Copco service representative and local mining regulatory authority before procurement. Cable specifications may vary based on regional standards (MSHA, AS/NZS, EN) and site-specific electrical system configurations.
在采购前，务必与阿特拉斯·科普柯服务代表和当地矿山监管机构核实具体电缆要求。电缆规格可能因区域标准（MSHA、AS/NZS、EN）和现场电气系统配置而异。
Cable Construction for Mining Applications 矿用电缆结构
Mining trailing cables for equipment like the Boltec require specialized construction to endure the rigors of underground operation. The multi-layer design provides mechanical protection, electrical safety, and operational flexibility essential for mobile mining machinery.
| Layer 层次 | Component 组件 | Function 功能 | Material 材料 |
|---|---|---|---|
| 1 | Power Conductors 电力导体 | Current transmission 电流传输 | Annealed copper, Class K |
| 2 | Conductor Insulation 导体绝缘 | Electrical isolation 电气隔离 | EPR/HEPR compound |
| 3 | Ground Conductor(s) 接地导体 | Protective earthing 保护接地 | Stranded copper |
| 4 | Ground Check Conductor 接地检测导体 | Ground continuity monitoring 接地连续性监测 | Insulated copper pilot |
| 5 | Filler/Bedding 填充层 | Round profile, flexibility 圆形外形，柔韧性 | Non-hygroscopic compound |
| 6 | Outer Sheath 外护套 | Mechanical/chemical protection 机械/化学保护 | CPE/CSP heavy-duty |
Common Conductor Configurations for Boltec Rigs Boltec钻机常用导体配置
| Configuration 配置 | Power (mm²) 电源 | Earth (mm²) 接地 | Pilot 检测线 | Typical Application 典型应用 |
|---|---|---|---|---|
| Standard 标准型 | 3×35 | 1×16 | 3×2.5 | Boltec S, smaller units |
| Medium 中型 | 3×50 | 1×25 | 3×2.5 | Boltec MC, Boltec 235 |
| Heavy-Duty 重型 | 3×70 | 1×35 | 3×4 | High-power configurations |
| Extended Length 加长型 | 3×95 | 1×50 | 3×4 | Long trailing distances |
Cable Selection Criteria 电缆选型标准
Selecting the appropriate replacement cable requires systematic evaluation of electrical, mechanical, and environmental factors. The following criteria should guide the selection process for older Atlas Copco Boltec installations.
| Criterion 标准 | Consideration 考虑因素 | Recommendation 建议 |
|---|---|---|
| Voltage Drop 电压降 | Cable length, load current, power factor | Maintain <5% at full load per IEEE Std 141[7] |
| Current Capacity 载流量 | Motor FLA, starting current, ambient temp | Size for 125% of equipment rated current |
| Mechanical Durability 机械耐久性 | Drag, crush, flexing cycles | Heavy-duty CPE sheath, min. 2.5mm thickness |
| Environmental Resistance 环境耐受性 | Water, oil, UV, chemical exposure | CSP/CPE sheath, MSHA flame test compliant |
| Flexibility 柔韧性 | Reel operation, routing constraints | Class K conductors, rubber compounds |
| Ground Fault Protection 接地故障保护 | Pilot wire requirements, GFR compatibility | Ground check conductor per local code |
Vdrop = (√3 × I × L × (R·cosφ + X·sinφ)) / 1000
Where: I = current (A), L = length (m), R = resistance (Ω/km), X = reactance (Ω/km), cosφ = power factor
Installation & Safety Considerations 安装与安全注意事项
Proper cable installation is critical for safe operation and longevity. Underground mining environments present unique challenges that must be addressed through careful installation practices aligned with applicable safety regulations.
| Aspect 方面 | Requirement 要求 | Reference 参考 |
|---|---|---|
| Cable Termination 电缆端接 | Use approved mining connectors, proper strain relief | MSHA 30 CFR §18.35[2] |
| Reel Tensioning 卷筒张力 | Maintain proper tension to prevent damage | OEM specifications |
| Ground Continuity Testing 接地连续性测试 | Verify before energizing, periodic testing | AS/NZS 4871.1[8] |
| Insulation Resistance 绝缘电阻 | Minimum 1MΩ at 500V DC for new installations | IEC 60364-6[9] |
| Visual Inspection 目视检查 | Daily pre-shift inspection for damage | Mine site safety protocols |
| Cable Storage 电缆存放 | Protect from UV, chemicals, mechanical damage | Manufacturer guidelines |
All electrical work on mining equipment must be performed by qualified personnel in accordance with applicable mining electrical safety regulations. De-energize, lock out, and tag out equipment before commencing cable replacement work. Verify zero energy state before handling conductors.
所有采矿设备的电气工作必须由合格人员按照适用的采矿电气安全法规进行。在开始电缆更换工作前，必须断电、锁定并挂牌。在接触导体前，确认零能量状态。
Applicable Standards & Regulations 适用标准与法规
Mining cable selection and installation must comply with regional regulatory frameworks. The following table summarizes key standards applicable to underground mining trailing cables in major mining jurisdictions.
| Region 地区 | Standard 标准 | Description 描述 | External Reference 外部参考 |
|---|---|---|---|
| USA | 30 CFR Part 18 | MSHA electrical equipment standards | eCFR Title 30 |
| USA | ICEA S-75-381 | Portable mining cable standards | ICEA Official |
| Australia/NZ | AS/NZS 1802 | Electric cables – trailing cables | Standards Australia |
| Australia | AS/NZS 4871.1 | Electrical equipment for mines | Standards Australia |
| International | IEC 60502-1 | Power cables 1kV to 30kV | IEC Webstore |
| International | IEC 60228 | Conductors for insulated cables | IEC Webstore |
| International | IEC 60332 | Fire performance for cables | IEC Webstore |
| China 中国 | MT 818 | Coal mine rubber cables (煤矿用橡套电缆) | SAMR China |
Anhui Feichun Special Cable Solutions 安徽飞纯特种电缆解决方案
Anhui Feichun Special Cable Co., Ltd. (安徽飞纯特种电缆有限公司) manufactures high-performance mining and industrial cables designed to meet international standards. Our product range includes trailing cables suitable for replacement applications on Atlas Copco Boltec and similar underground mining equipment.
| Product Series 产品系列 | Specifications 规格 | Applications 应用 |
|---|---|---|
| Mining Trailing Cable 矿用拖曳电缆 | 0.66/1.14kV, 3×16~3×150mm², EPR/CPE | Rock bolting rigs, shuttle cars, continuous miners |
| Flexible Rubber Cable 柔性橡套电缆 | 0.38/0.66kV, 3×4~3×95mm², rubber sheath | Mobile mining equipment, drill rigs |
| Reeling Cable 卷筒电缆 | 0.6/1kV, enhanced flexibility, high flex cycles | Cable reel systems, cranes, stackers |
| Shield Cable 屏蔽电缆 | Braided copper screen, EMI protection | VFD applications, sensitive equipment |
Feichun offers custom cable manufacturing to match OEM specifications for legacy equipment. Contact our technical team with your existing cable specifications or equipment model for a tailored replacement solution.
飞纯提供定制电缆生产，以匹配旧设备的原始设备制造商规格。请联系我们的技术团队，提供您现有的电缆规格或设备型号，以获取量身定制的替换解决方案。
References & Sources 参考文献与来源
- 1ICEA S-75-381/NEMA WC 58 – Portable and Power Feeder Cables for Use in Mines and Similar Applications. ICEA
- 2U.S. Code of Federal Regulations, Title 30, Part 18 – Electric Motor-Driven Mine Equipment and Accessories. eCFR
- 3IEC 60228:2004 – Conductors of insulated cables. IEC Webstore
- 4IEC 60502-1 – Power cables with extruded insulation and their accessories. IEC Webstore
- 5AS/NZS 1802 – Electric cables – Reeling and trailing – For underground mining. Standards Australia
- 6IEC 60332 – Tests on electric and optical fibre cables under fire conditions. IEC Webstore
- 7IEEE Std 141 (Red Book) – Recommended Practice for Electric Power Distribution for Industrial Plants. IEEE SA
- 8AS/NZS 4871.1 – Electrical equipment for mines and quarries. Standards Australia
- 9IEC 60364-6 – Low-voltage electrical installations – Verification. IEC Webstore
- 10Atlas Copco Underground Rock Excavation – Product Documentation. Atlas Copco
