屏蔽扁平电缆：变频驱动起重电机用 Nexans RHEYFLAT®-CP（屏蔽型）的等效替代方案
Screened Flat Cables: Equivalent Alternatives to Nexans RHEYFLAT®-CP (Shielded) for VFD-Driven Hoist Motors
屏蔽扁平电缆：变频驱动起重电机用 Nexans RHEYFLAT®-CP（屏蔽型）的等效替代方案
1. Introduction 引言
Variable Frequency Drives (VFDs) have become the standard method for controlling hoist and crane motors in modern industrial environments, replacing older two-speed winding and contactor-based systems. VFD-controlled motors deliver smoother acceleration and deceleration, precise multi-speed operation, and significant energy savings — but they also impose unique electrical stresses on the cables connecting the drive to the motor. High-frequency switching transients, voltage spikes caused by IGBT commutation, and elevated electromagnetic interference (EMI) all demand cables specifically engineered for the environment. （变频器已成为现代工业起重电机控制的标准方式，取代了传统的双速绕组和接触器系统。变频电机带来更平稳的启停控制，但也对连接电缆提出了独特的电气要求。）
The Nexans RHEYFLAT®-CP series — specifically the screened variant with the designation type (N)GFLCGOEU-J — has long been an industry reference for shielded rubber flat cables deployed in festoon systems, e-chain cable carriers, and direct hoist motor connections. However, long lead times, regional availability constraints, and evolving procurement strategies have driven end users and OEMs to seek technically equivalent alternatives that match or exceed the original’s performance envelope. （Nexans RHEYFLAT®-CP 系列屏蔽橡胶扁平电缆长期以来是吊车滑触线系统和电缆拖链系统中的行业标杆。然而，交货周期长、区域供应受限等因素促使终端用户寻找同等性能的替代方案。）
Anhui Feichun Special Cable Co., Ltd. (安徽飞纯特种电缆有限公司) manufactures a comprehensive range of screened flat cables that are designed as functional equivalents to the RHEYFLAT®-CP family. This technical bulletin provides a transparent, parameter-by-parameter comparison and outlines the applicable standards, EMC shielding performance, and real-world application suitability. （安徽飞纯特种电缆有限公司生产全系列屏蔽扁平电缆，作为 RHEYFLAT®-CP 系列的功能等效产品。本文将逐参数进行透明对比。）
2. Why VFD Hoist Applications Require Screened Flat Cables 变频起重应用为何需要屏蔽扁平电缆
2.1 Electromagnetic Interference (EMI) from VFDs 变频器产生的电磁干扰
Modern VFDs generate high dV/dt switching pulses — often exceeding 5,000 V/µs — as their IGBTs commutate at frequencies between 2 kHz and 16 kHz. Without an effective cable shield, the resulting radiated and conducted emissions can interfere with nearby control circuits, encoders, safety PLCs, and communication buses such as PROFIBUS or CAN-bus. The EMC Directive 2014/30/EU and the international standard IEC 61800-3 both require that VFD installations include appropriate shielding measures to limit electromagnetic emissions to acceptable levels. （现代变频器 IGBT 开关产生高 dV/dt 脉冲，可超过 5000 V/µs。若电缆缺乏有效屏蔽，辐射和传导发射将干扰周边控制回路。IEC 61800-3 要求变频安装须采取适当的屏蔽措施。）
2.2 Flat Cable Geometry for Festoon & E-Chain Systems 扁平电缆在滑触线和拖链系统中的几何优势
Hoist and crane applications frequently employ festoon cable trolley systems or e-chain cable carriers to supply power and control signals to the traveling motor. Flat (profiled) cables are purpose-built for these installations because they bend in one plane only, preventing twisting and extending service life under repetitive mechanical cycles. The flat geometry also minimizes the vertical space envelope inside the carrier or trolley, which is critical in applications where headroom is constrained. The reference design standard for flat rubber cables of this type is DIN VDE 0250 Part 809, which specifies construction, insulation, and sheathing requirements. （起重机常采用滑触线小车或拖链系统供电。扁平电缆仅在单一平面弯曲，避免扭转，延长使用寿命。参考设计标准为 DIN VDE 0250 Part 809。）
2.3 Combined Requirement: Shielding + Flat Profile + Mechanical Robustness 综合需求：屏蔽 + 扁平结构 + 机械耐久
The intersection of EMC shielding and flat cable construction is a specialist niche. Conventional round VFD cables with braided copper shields are readily available, but they cannot be used in festoon systems. A screened flat cable such as the RHEYFLAT®-CP — or its Feichun equivalent — addresses all three requirements simultaneously: effective EMC shielding, flat-profile mechanical compatibility, and the robustness demanded by continuous bending at speeds up to 180 m/min. （电磁屏蔽与扁平结构的交叉需求属于专业细分领域。Feichun 等效产品同时满足 EMC 屏蔽、扁平机械兼容性及高速连续弯曲的耐久要求。）
3. Technical Specification Comparison 技术参数对比
The table below provides a direct comparison between the Nexans RHEYFLAT®-CP (N)GFLCGOEU-J series and the Feichun FC-GFLCGOEU screened flat cable range. All parameters are referenced to publicly available manufacturer datasheets and the applicable DIN VDE / IEC standards. （下表提供 Nexans RHEYFLAT®-CP 与飞纯 FC-GFLCGOEU 屏蔽扁平电缆的逐项参数对比。）
| Parameter 参数 | Nexans RHEYFLAT®-CP (N)GFLCGOEU-J | Feichun FC-GFLCGOEU | Ref. Standard 参考标准 |
|---|---|---|---|
| Conductor 导体 | Bare copper, finely stranded, Class 5 (≤35 mm²) / Class 6 (<35 mm²) | Bare copper, finely stranded, Class 5 / Class 6 | IEC 60228, DIN VDE 0295 |
| Insulation 绝缘 | Special rubber compound (EPR type) | EPR-based rubber compound, HD 308 S2 identification | DIN VDE 0207-21 |
| Cable Formation 电缆成型 | Flat — individually shielded conductors arranged in parallel | Flat — individually shielded conductors arranged in parallel | DIN VDE 0250-809 |
| Screen / Shield 屏蔽 | Tinned copper braid over each insulated core, coverage ≥ 80% | Tinned copper braid per core, coverage ≥ 80% | DIN VDE 0250-809 |
| Outer Sheath 外护套 | Polychloroprene (PCP / Neoprene), black | Polychloroprene (PCP), black, abrasion & notch resistant | DIN VDE 0207-21, compound 5GM3 |
| Core Identification 线芯标识 | DIN VDE 0293-308 / HD 308 S2 color code | HD 308 S2 — identical color sequence | HD 308 S2 |
| Parameter 参数 | Nexans RHEYFLAT®-CP | Feichun FC-GFLCGOEU | Unit 单位 |
|---|---|---|---|
| Rated Voltage U₀/U 额定电压 | 300/500 V (per VDE); 600/1000 V (general) | 300/500 V (VDE); 600/1000 V | V |
| Max. AC Operating Voltage 最大交流工作电压 | 330/550 V | 330/550 V | V |
| Max. DC Operating Voltage 最大直流工作电压 | 495/825 V | 495/825 V | V |
| AC Test Voltage 交流试验电压 | 2,000 V (2 kV) | 2,000 V (2 kV) | V |
| Max. Conductor Temperature (service) 最高导体工作温度 | +90 °C | +90 °C | °C |
| Max. Short-Circuit Temperature 最高短路温度 | +200 °C | +250 °C (5 s max.) | °C |
| Operating Temperature Range (fixed) 固定敷设温度范围 | −40 °C to +80 °C | −50 °C to +90 °C | °C |
| Operating Temperature Range (mobile) 移动使用温度范围 | −25 °C to +60 °C | −35 °C to +90 °C | °C |
| DC Resistance @ 20 °C (example 4 × 10 mm²) 直流电阻 | ≤ 1.83 Ω/km | ≤ 1.83 Ω/km | Ω/km |
| Parameter 参数 | Nexans RHEYFLAT®-CP | Feichun FC-GFLCGOEU | Ref. Standard 参考标准 |
|---|---|---|---|
| Min. Bending Radius (flexible / mobile) 最小弯曲半径 | 4d – 5d (d = outer height) | 4d (fixed), 5d (mobile) | DIN VDE 0298-3 |
| Max. Travelling Speed (festoon) 最大行走速度 | up to 180 m/min | up to 180 m/min | Manufacturer data |
| Bending Plane 弯曲平面 | One plane only (flat profile) | One plane only | — |
| Oil Resistance 耐油性 | Yes (PCP sheath) | Yes (PCP sheath, DIN VDE 0472-803) | DIN VDE 0472-803 |
| UV / Ozone Resistance 抗紫外线/臭氧 | Yes | Yes | — |
| Flame Retardance 阻燃性 | IEC 60332-1 | IEC 60332-1-2 / EN 60332-1-2 | IEC 60332-1 |
| Cross-Section 截面 (mm²) | Approx. Dimensions (mm) | Current Rating 载流量 (A)* | DC Resistance @ 20 °C (Ω/km) | Approx. Weight 重量 (kg/km) |
|---|---|---|---|---|
| 4 × 1.5 | 8.0 × 20.0 | 16 | ≤ 12.1 | ≈ 290 |
| 4 × 2.5 | 9.0 × 23.5 | 23 | ≤ 7.41 | ≈ 480 |
| 4 × 4 | 11.0 × 30.4 | 32 | ≤ 4.61 | ≈ 770 |
| 4 × 6 | 12.0 × 33.0 | 43 | ≤ 3.08 | ≈ 1,030 |
| 4 × 10 | 14.3 × 38.0 | 56 | ≤ 1.83 | ≈ 1,160 |
| 4 × 16 | 15.0 × 43.0 | 78 | ≤ 1.15 | ≈ 1,640 |
| 4 × 25 | 20.0 × 56.4 | 104 | ≤ 0.727 | ≈ 3,030 |
| 4 × 50 | — | 138 | ≤ 0.387 | ≈ 3,640 |
* Current ratings per DIN VDE 0298-4, Table 15 (rubber cables on surface, 30 °C ambient, conductor temperature 90 °C). Custom configurations with 5, 7, 8, 12+ cores and hybrid power/control/signal layouts are available on request. （* 载流量依据 DIN VDE 0298-4 表 15。5、7、8、12 芯及更多芯数的混合动力/控制/信号配置可定制。）
4. EMC Shielding Architecture & Performance EMC 屏蔽结构与性能
The core differentiator of a “CP” (screened) variant versus an unscreened flat cable is the per-core EMC shield. In both the Nexans RHEYFLAT®-CP and the Feichun FC-GFLCGOEU, each insulated conductor is individually wrapped with a tinned copper braid providing a minimum 80% optical coverage. This individual-core shielding topology is significantly more effective at suppressing crosstalk and radiated emissions than a single overall braid, because it attenuates coupling between adjacent power and control cores within the same flat cable assembly. （”CP”（屏蔽型）的核心区别在于每芯独立的 EMC 屏蔽层。飞纯与 Nexans 产品均采用镀锡铜编织丝对每芯单独屏蔽，光学覆盖率 ≥ 80%，有效抑制相邻芯线间的串扰和辐射发射。）
| Shield Parameter 屏蔽参数 | Nexans RHEYFLAT®-CP | Feichun FC-GFLCGOEU |
|---|---|---|
| Shield Type 屏蔽类型 | Tinned copper braid (per core) | Tinned copper braid (per core) |
| Coverage 覆盖率 | ≥ 80% | ≥ 80% |
| Shielding Topology 屏蔽拓扑 | Individual core screening | Individual core screening |
| Drain Wire 排流线 | Not standard (braid direct termination) | Not standard (braid direct termination); optional drain wire available |
| Suitable for IEC 61800-3 C2/C3 VFD Installations | Yes (with proper termination) | Yes (with proper 360° termination) |
5. Applicable Standards & Compliance 适用标准与合规性
| Standard 标准 | Scope 适用范围 | Compliance 合规 |
|---|---|---|
| DIN VDE 0250-809 | Flat rubber cables for mobile applications — construction & testing | Compliant 符合 |
| IEC 60228 / DIN VDE 0295 | Conductors of insulated cables — Class 5 & Class 6 flexibility | Compliant 符合 |
| DIN VDE 0207-21 | Rubber insulation & sheathing compounds (PCP type 5GM3) | Compliant 符合 |
| HD 308 S2 / DIN VDE 0293-308 | Core identification by color coding | Compliant 符合 |
| IEC 60332-1-2 / EN 60332-1-2 | Flame retardance — single vertical cable test | Compliant 符合 |
| DIN VDE 0472-803 | Oil resistance testing (24 h immersion, 70 °C) | Compliant 符合 |
| DIN VDE 0472-508 | Dielectric strength (routine voltage test) | Compliant 符合 |
| DIN VDE 0298-3 / -4 | Application conditions, current ratings, bending radii | Compliant 符合 |
| IEC 61800-3 | EMC requirements for adjustable speed drive systems | Compatible 兼容 |
| 2014/30/EU (EMC Directive) | EU EMC essential requirements for industrial equipment | Compatible 兼容 |
6. Typical Application Scenarios 典型应用场景
6.1 Overhead Crane Festoon Systems 桥式起重机滑触线系统
In overhead travelling crane (EOT crane) installations, the screened flat cable runs along a C-rail or I-beam festoon track, connecting the VFD mounted on the crane bridge to the hoist motor on the trolley. The flat profile allows the cable to nest inside trolley saddles without twisting, while the per-core shielding prevents the VFD switching noise from coupling into adjacent control or encoder cables running on the same festoon. Feichun FC-GFLCGOEU cables are available with 4-core (3L + PE) and multi-core (e.g., 4 × power + 2 × control pairs) configurations to serve combined motor power and brake/encoder signal requirements in a single cable assembly. （在桥式起重机中，屏蔽扁平电缆沿 C 轨滑触线敷设，连接安装在桥架上的变频器与小车起升电机。飞纯 FC-GFLCGOEU 提供 4 芯及多芯混合配置。）
6.2 Gantry & Port Cranes 龙门起重机与港口起重机
Rubber-tired gantry cranes (RTGs) and ship-to-shore (STS) cranes in port environments face salt spray, UV exposure, temperature extremes, and high-speed trolley travel. The PCP (polychloroprene) outer sheath of both the RHEYFLAT®-CP and the Feichun equivalent provides proven resistance to these environmental stresses. Feichun’s wider cold-temperature operating range (mobile service to −35 °C) is advantageous in northern-latitude port operations. （港口龙门吊和岸桥面临盐雾、紫外线等严苛环境。PCP 外护套提供了可靠的耐环境性能。飞纯产品更宽的低温工作范围适用于高纬度港口。）
6.3 Mining Hoists & Conveyors 矿山提升机与输送机
In underground and open-pit mining, VFD-controlled hoist drives operate under conditions of high dust, humidity, and mechanical abrasion. The abrasion-resistant and oil-resistant PCP sheath, combined with individual core shielding, makes screened flat cables suitable for cable carrier systems feeding mobile ore conveyors and skip hoists. All electrical testing is performed per DIN VDE 0472-508 for dielectric strength and DIN VDE 0472-803 for oil immersion. （矿山变频提升机在高粉尘、高湿度环境下运行。耐磨耐油的 PCP 护套结合单芯屏蔽，适用于矿用输送机和箕斗提升的电缆拖链系统。）
6.4 Stage Machinery & Building Hoists 舞台机械与建筑提升机
Theatre stage hoists, scenic fly systems, and construction-site material lifts increasingly use VFDs for smooth, quiet, and precisely controllable vertical motion. In these environments, EMC compliance is especially critical because audio, lighting, and communication systems are co-located with the power cables. The individually screened flat cable provides the EMI containment required while maintaining the compact flat routing that stagehands and installers prefer. （舞台升降机和建筑施工升降机越来越多地采用变频控制。在这类环境中，EMC 合规尤为关键，独立屏蔽扁平电缆提供了所需的 EMI 抑制。）
7. Voltage Drop Reference Data 电压降参考数据
For VFD-to-motor cable sizing, voltage drop at rated current is a critical dimensioning parameter. The following table provides per-unit voltage drop values (cos φ = 0.8) for common cross-sections in the Feichun FC-GFLCGOEU range, suitable for preliminary engineering calculations per DIN VDE 0298-4. （变频器至电机电缆选型时，额定电流下的电压降是关键参数。以下提供常见截面的单位电压降参考值。）
| Cross-Section (mm²) | ΔU (V/A·km) | Example: ΔU at Rated Current, 100 m Run |
|---|---|---|
| 4 × 2.5 | 14.3 | 23 A × 0.1 km × 14.3 = 32.9 V (≈ 8.4% at 390 V) |
| 4 × 4 | 9.0 | 32 A × 0.1 km × 9.0 = 28.8 V (≈ 7.4%) |
| 4 × 6 | 5.8 | 43 A × 0.1 km × 5.8 = 24.9 V (≈ 6.4%) |
| 4 × 10 | 3.5 | 56 A × 0.1 km × 3.5 = 19.6 V (≈ 5.0%) |
| 4 × 16 | 2.2 | 78 A × 0.1 km × 2.2 = 17.2 V (≈ 4.4%) |
| 4 × 25 | 1.4 | 104 A × 0.1 km × 1.4 = 14.6 V (≈ 3.7%) |
Note: For VFD output cables, voltage drop calculations serve as a guideline only. The VFD’s closed-loop regulation compensates for moderate voltage drop; however, cable losses contribute to heat generation, which must be considered in derating calculations. Always verify final cable sizing with the project electrical engineer. （注：变频器输出电缆的电压降计算仅作为参考。变频器闭环调节可补偿适度的电压降；但电缆损耗产生的热量须纳入降容计算。最终选型请咨询项目电气工程师。）
8. Why Specify Feichun as an Equivalent Alternative 为何选择飞纯作为等效替代
Functional equivalence means matching the original product on all parameters that affect performance, safety, and installation compatibility. The tables above demonstrate that the Feichun FC-GFLCGOEU screened flat cable meets or exceeds the Nexans RHEYFLAT®-CP specification across conductor class, insulation type, shield construction, voltage rating, temperature range, bending radius, and environmental resistance. Beyond parameter parity, Feichun offers several practical advantages for project procurement: （功能等效意味着在影响性能、安全和安装兼容性的所有参数上匹配原始产品。飞纯产品在各项参数上均达到或超过 Nexans 规格。此外还具有以下采购优势：）
Shorter Lead Times 更短交货期 — Direct manufacturing in Anhui Province with integrated copper drawing, rubber compounding, and braiding lines enables typical lead times of 2–4 weeks for standard configurations, compared to 8–16 weeks for European imports. （安徽省直接生产，铜拉丝、橡胶混炼、编织一体化产线，标准配置交期 2–4 周，远低于欧洲进口的 8–16 周。）
Custom Engineering Support 定制工程支持 — Feichun’s technical team can modify core count, cross-section combinations, sheath color, and marking to match existing installation specifications, including direct substitution of RHEYFLAT®-CP part numbers in crane OEM BOMs. （飞纯技术团队可根据现有安装规格修改芯数、截面组合、护套颜色和标识，包括直接替换起重机 OEM BOM 中的 RHEYFLAT®-CP 零件号。）
Comprehensive Testing 全面测试 — Every production batch undergoes dielectric strength, insulation resistance, conductor resistance, oil immersion, and flame retardance tests in accordance with DIN VDE 0472 and IEC 60332 series standards. Test certificates are provided with shipment. （每批生产均进行耐压、绝缘电阻、导体电阻、耐油浸泡及阻燃测试，测试报告随货提供。）
9. References & Further Reading 参考文献
[1] IEC 60228:2004 — Conductors of insulated cables. International Electrotechnical Commission. Eland Cables — IEC 60228 Reference
[2] DIN VDE 0250-809 — Cables and wires for power installations; flat rubber-sheathed cables for mobile applications. German Institute for Standardisation (DIN). Feichun Technical Blog — DIN VDE 0250
[3] IEC 61800-3:2017 — Adjustable speed electrical power drive systems — Part 3: EMC requirements and specific test methods. International Electrotechnical Commission.
[4] EN 50525 series — Electric cables: Low voltage energy cables of rated voltages up to and including 450/750 V (U₀/U). Eland Cables — EN 50525 Standard
[5] Nexans Handling Cable Catalogue — RHEYFLAT® N (N)GFLCGOEU-J Screened Rubber Flat Cables (datasheet). CSE Distributors — RHEYFLAT®-N
[6] Cervi Cables — NGFLCGOEU Flat Screened Cable Technical Data. Cervi — Cerviflex Flat NGFLCGOEU
[7] DIN VDE 0298-4 — Application of cables and cords in power installations; current carrying capacity tables.
[8] IEC 60332-1-2 — Tests on electric and optical fibre cables under fire conditions; Test for vertical flame propagation for a single insulated wire or cable.
[9] 2014/30/EU — Directive of the European Parliament and of the Council on electromagnetic compatibility (EMC Directive).
[10] Top Cable — TOPDRIVE® VFD (EMC) ROZ1-K (AS) 0,6/1kV Cable Datasheet. Top Cable — VFD EMC Cable
[11] Prysmian Group — PLANOFLEX M(StD)HOEU Flat Festoon Cable Datasheet. Prysmian — Flat Festoon Cable
[12] Feichun Special Cable — DIN VDE 0250 Reeling & Trailing Cables Technical Blog. Feichun Blog — DIN VDE 0250
[13] Eland Cables — Crane Cable Technical Guide. Eland Cables — Crane Cable
10. Contact & Inquiry 联系与询价
For technical data sheets, pricing, sample requests, or project-specific cable engineering for screened flat cables equivalent to Nexans RHEYFLAT®-CP, please contact Anhui Feichun Special Cable Co., Ltd. through any of the following channels: （如需屏蔽扁平电缆技术数据表、报价、样品或项目定制工程支持，请通过以下渠道联系安徽飞纯特种电缆有限公司：）
