1. Introduction: Why This Comparison Matters 引言:为什么这项对比十分重要

In large-scale open-pit mining, unplanned cable damage caused by low-visibility equipment movement is a leading source of operational downtime and safety incidents. The TENAX-LUMEN self-illuminating trailing cable—designated (N)TSCGEH3S—was developed by Prysmian Group precisely to address this problem. It embeds active electroluminescent (EL) lighting elements under a transparent polyurethane (TPU) outer sheath, making the cable visible in complete darkness even when it is not energized. But an essential question arises for mine electrical engineers: does adding self-illumination change the cable’s core mechanical and electrical characteristics compared to the well-established (N)TSCGEWÖU standard rubber trailing cable?

在大型露天矿山中,低能见度条件下设备碾压电缆导致的计划外停机和安全事故十分常见。Prysmian 集团开发的 TENAX-LUMEN 自发光拖曳电缆(型号 (N)TSCGEH3S)正是为了解决这一问题。该电缆将有源电致发光(EL)元件嵌入透明聚氨酯(TPU)外护套下方,即使电缆未通电也能在完全黑暗中清晰可见。但矿山电气工程师需要回答一个关键问题:增加自发光功能后,电缆的核心机械与电气特性是否与成熟的 (N)TSCGEWÖU 标准橡胶拖曳电缆有所不同?

Scope of This Article   本文范围

This article compares the mechanical, electrical, and material parameters of the (N)TSCGEH3S (TENAX-LUMEN) against the standard (N)TSCGEWÖU per DIN VDE 0250-813 / HD 620 S2, using publicly available manufacturer data and recognized industry standards. All external sources are cited with rel="nofollow" links.

2. Designation Decoding: (N)TSCGEWÖU vs. (N)TSCGEH3S 型号解码对比

Understanding the German VDE cable designation system is the first step to identifying where the two designs diverge. Per DIN VDE 0250, each letter in the type designation indicates a specific construction element from the cable core outward. The table below decodes both designations side by side.

了解德国 VDE 电缆命名体系是辨识两种设计差异的第一步。根据 DIN VDE 0250 标准,型号中的每个字母代表从电缆芯到外层的特定结构元素。

Table 1 — VDE Designation Letter-by-Letter Comparison   表1 — VDE 型号逐字母对比
PositionLetter(N)TSCGEWÖU Meaning(N)TSCGEH3S Meaning
1(N)National standard (DIN VDE) 国家标准Same — National standard 相同
2TTrailing cable 拖曳电缆Same — Trailing cable 相同
3SStranded conductor (fine wire) 绞合导体(细丝)Same — Stranded conductor 相同
4CMetallic conductive layer on insulation 绝缘上金属导电层Same — Metallic conductive layer 相同
5GEEarth conductors in interstices 间隙内接地导体Same — GE earth conductors 相同
6WPolyester braid reinforcement 聚酯编织增强层Not present — replaced by H3S 无此项——替换为 H3S
7ÖUOil-resistant PCP outer sheath (red) 耐油 PCP 外护套(红色)Not present 无此项
6–7H3S—Transparent TPU sheath with integrated self-illumination system 透明 TPU 护套 + 集成自发光系统

The critical divergence begins at position 6. The standard cable uses a polyester anti-torsion braid (W) between inner and outer PCP rubber sheaths (ÖU), producing the characteristic bright-red exterior. The TENAX-LUMEN replaces this with the H3S suffix, which designates a transparent thermoplastic polyurethane (TPU) outer sheath housing the electroluminescent illumination elements. This is the single most significant structural difference between the two types.

关键差异从第6位开始。标准电缆在内外 PCP 橡胶护套之间使用聚酯抗扭编织层(W),外观呈标志性亮红色。TENAX-LUMEN 则以 H3S 后缀取代,表示采用透明热塑性聚氨酯(TPU)外护套并内置电致发光照明元件。这是两种型号之间最为显著的结构差异。

3. Core Construction: What Remains Identical 芯线结构:相同之处

From the conductor outward to the insulation screen, the two cable types share an essentially identical construction. Both are designed to DIN VDE 0250-813 dimensional requirements for medium-voltage trailing cables rated 3.6/6 kV through 18/30 kV, and both use the Prysmian PROTOLON-grade EPR insulation compound.

从导体到绝缘屏蔽层,两种电缆共享基本一致的内部结构。二者均按 DIN VDE 0250-813 对 3.6/6 kV 至 18/30 kV 中压拖曳电缆的尺寸要求设计,并采用 Prysmian PROTOLON 级 EPR 绝缘料。

Table 2 — Core Construction Comparison   表2 — 芯线结构对比
Parameter 参数(N)TSCGEWÖU Standard(N)TSCGEH3S TENAX-LUMEN
Conductor Material 导体材料Electrolytic copper, tinned, Class 5 (VDE) / Class FS very finely stranded per IEC 60228Identical — tinned copper, Class 5 / FS
Conductor Screen 导体屏蔽Semi-conductive EPR layerIdentical
Insulation 绝缘层PROTOLON HS — high-grade EPR, min. 3GI3 per DIN VDE 0207-20Identical — PROTOLON HS EPR, 3GI3
Insulation Screen 绝缘屏蔽Semi-conductive modified NBR, cold-strippable (Easy Strip)Identical — cold-strippable NBR
Core Configuration 芯线排列3C + 3G (3 power + 3 split earth in interstices)Identical — 3C + 3G
Earth Conductor 接地导体Tinned copper, split into 3 parts in intersticesIdentical
Inner Sheath 内护套Thermosetting compound 5GM3, per DIN VDE 0207-21Identical — 5GM3 compound
Engineering Note   工程说明

The conductor, insulation system, and earth conductor geometry of both cables are functionally interchangeable. This means the electrical characteristics—rated voltage, current carrying capacity (per DIN VDE 0298-4), insulation resistance, and partial discharge behavior—remain the same for a given cross-section. A 3×95+3×50/3 mm² (N)TSCGEH3S cable will carry the same current as the equivalent (N)TSCGEWÖU at the same ambient temperature rating.

4. Outer Construction: Where They Diverge 外部结构:关键差异所在

The outer sheath and reinforcement layer represent the primary engineering difference between these two cable types. This distinction directly affects mechanical performance metrics that matter in trailing service: abrasion resistance, cold flexibility, and visual detection.

外护套和增强层是两种电缆的主要工程差异。这一区别直接影响拖曳工况中关键的机械性能指标:耐磨性、低温柔性和可视检测能力。

Table 3 — Outer Sheath & Reinforcement Comparison   表3 — 外护套与增强层对比
Parameter 参数(N)TSCGEWÖU Standard(N)TSCGEH3S TENAX-LUMEN
Anti-Torsion Layer 抗扭层Polyamide thread braid between inner & outer sheathPolyamide thread braid (retained)
Outer Sheath Material 外护套材料Polychloroprene (PCP), compound 5GM5 per DIN VDE 0207-21Transparent thermoplastic polyurethane (TPU)
Sheath Color 护套颜色Bright red (standard)Transparent / translucent (for light emission)
Self-Illumination 自发光功能None — passive visibility onlyActive EL (electroluminescent) string integrated under TPU sheath; glows when energized and un-energized
Oil Resistance 耐油性Excellent — PCP inherently oil-resistantExcellent — TPU also oil-, ozone-, and UV-resistant
Lead-Free 无铅Varies by manufacturerYes — lead-free materials specified

From an engineering standpoint, the switch from PCP to TPU for the outer sheath is not merely cosmetic. TPU offers higher tensile strength and superior abrasion resistance per unit thickness compared to PCP, but PCP provides better inherent flame retardancy. Both materials deliver excellent resistance to ozone, UV radiation, and hydrocarbons. The choice of TPU enables the transparent construction necessary for the EL illumination system to function.

从工程角度看,外护套从 PCP 切换为 TPU 绝非仅是外观上的变化。TPU 在同等厚度下具有更高的抗拉强度和更优异的耐磨性,而 PCP 则具备更好的固有阻燃性能。两种材料均具有出色的耐臭氧、紫外线和碳氢化合物性能。选择 TPU 是为了实现 EL 发光系统所需的透明结构。

5. Mechanical Performance Data 机械性能数据

The following table consolidates the key mechanical parameters that determine whether a cable can serve as a direct replacement in existing trailing-cable installations. Data are drawn from Prysmian’s published PROTOLON and TENAX-LUMEN datasheets and DIN VDE 0250-813 / DIN VDE 0298-3 requirements.

下表汇总了决定电缆能否在既有拖曳电缆装置中直接替换的关键机械参数。数据来源于 Prysmian 公开发布的 PROTOLON 和 TENAX-LUMEN 产品规格书以及 DIN VDE 0250-813 / DIN VDE 0298-3 标准要求。

Table 4 — Mechanical Performance Comparison   表4 — 机械性能对比
Parameter 参数(N)TSCGEWÖU(N)TSCGEH3S
Max. Tensile Load on Conductor 导体最大拉伸载荷30 N/mm² (per DIN VDE 0298-3: 15 N/mm²)30 N/mm² (identical)
Max. Travel Speed 最大行进速度Up to 240 m/minUp to 240 m/min
Operating Temp. (Moving) 工作温度(移动中)−35 °C to +80 °C (special: −45 °C)−50 °C to +60 °C
Max. Conductor Temp. 导体最高温度90 °C90 °C
Max. Short-Circuit Temp. 最高短路温度250 °C250 °C
Min. Bending Radius (Moving) 最小弯曲半径(移动)8 × OD (typ.)8 × OD (typ.)
Torsion Resistance 抗扭转性能Polyamide braid + PCP double sheathPolyamide braid + TPU sheath
Abrasion Resistance 耐磨性能Excellent (PCP 5GM5)Excellent (TPU — typically higher abrasion index than PCP)
Impact Resistance 抗冲击性能HighHigh (TPU has superior tear & impact energy absorption)
Flame Retardancy 阻燃性能Flame retardant per EN 60332-1-2Flame retardant per EN 60332-1-2
⚠ Key Difference — Cold Flexibility   关键差异——低温柔性

The standard (N)TSCGEWÖU is rated for mobile operation down to −35 °C (with special compounds available to −45 °C on request). The TENAX-LUMEN (N)TSCGEH3S achieves −50 °C cold flexibility as standard—a significant advantage for operations in extreme climates such as northern Canada, Siberia, or Scandinavian open-pit mines. However, the upper continuous temperature limit in mobile service is 60 °C vs. 80 °C for the standard cable, reflecting TPU’s lower heat tolerance compared to PCP.

标准 (N)TSCGEWÖU 的移动工作温度下限为 −35°C(特殊配方可达 −45°C)。TENAX-LUMEN 标准即可达 −50°C——对加拿大北部、西伯利亚或斯堪的纳维亚等极寒矿区具有显著优势。但移动工况上限温度为 60°C(标准电缆为 80°C),反映了 TPU 相比 PCP 较低的耐热性。

6. Electrical Parameters 电气参数

Because the conductor, insulation, and screening systems are identical, the rated electrical parameters for both cable types are the same at any given cross-section and voltage class. The table below shows representative values for the commonly specified 6/10 kV, 3×95+3×50/3 mm² configuration.

由于导体、绝缘和屏蔽系统完全一致,在相同截面和电压等级下,两种电缆的额定电气参数相同。下表展示了常用 6/10 kV、3×95+3×50/3 mm² 规格的典型值。

Table 5 — Electrical Parameters (6/10 kV, 3×95+3×50/3 mm²)   表5 — 电气参数
Parameter 参数Value 数值Standard 标准
Rated Voltage U₀/U 额定电压6/10 kVDIN VDE 0250-813
Max. Operating Voltage AC 最大交流工作电压12 kVDIN VDE 0250-813
Max. Operating Voltage DC 最大直流工作电压18 kVDIN VDE 0250-813
Conductor Resistance at 20 °C 20°C 导体电阻≤ 0.193 Ω/kmIEC 60228 Class 5
Current Carrying Capacity 载流量Per DIN VDE 0298-4, Table 15 (at 30 °C ambient)DIN VDE 0298-4
Insulation Resistance 绝缘电阻≥ 20 MΩ·km (EPR, 90 °C)DIN VDE 0207-20
Voltage Test (Routine) 例行耐压试验2.5 × U₀ + 2 kV, 5 minDIN VDE 0472-512
EMC Performance 电磁兼容性Extremely low interference (symmetrical 3-core design)—

The self-illumination system of the TENAX-LUMEN operates on the electromagnetic induction principle, harvesting a small amount of energy from the cable’s own electromagnetic field. It requires no additional wiring or external power source. As a result, it introduces no measurable impact on the cable’s main-circuit electrical parameters, power factor, or current capacity.

TENAX-LUMEN 的自发光系统基于电磁感应原理工作,从电缆自身的电磁场中获取少量能量。它无需额外布线或外部电源,因此对电缆主回路的电气参数、功率因数或载流量不产生可测量的影响。

7. Safety Enhancement: The Self-Illumination Advantage 安全增强:自发光的优势

The defining feature of the TENAX-LUMEN is its integrated active visibility system. In conventional mining operations, cable damage from equipment run-over is a persistent problem—particularly during night shifts in open-pit mines or in permanent darkness underground. The standard (N)TSCGEWÖU relies on its bright-red PCP sheath and optional reflective tape for visibility, which are entirely passive and become ineffective in low or zero ambient light conditions.

TENAX-LUMEN 的核心特性是集成式主动可视系统。在传统矿山作业中,设备碾压电缆是一个持续存在的问题——尤其在露天矿的夜班或永久黑暗的地下矿井中。标准 (N)TSCGEWÖU 依赖其亮红色 PCP 护套和可选反光胶带来提供可视性,这些都是纯被动方式,在低光照或零光照条件下完全失效。

Table 6 — Visibility & Safety Feature Comparison   表6 — 可视性与安全特性对比
Feature 特性(N)TSCGEWÖU(N)TSCGEH3S TENAX-LUMEN
Daytime Visibility 白天可视性High — bright red sheathModerate — translucent TPU
Night / Dark Visibility 夜间/黑暗可视性Poor — depends on external lighting or reflective tapeExcellent — active EL glow, visible in complete darkness
Visibility When De-Energized 断电时可视性Same as daytime (passive only)Maintained — EL elements designed to glow even without main-circuit power
Run-Over Risk Reduction 碾压风险降低BaselineSignificant improvement — up to 87% reduction in unplanned downtime per field data
Retrofit Compatibility 改造兼容性—Direct drop-in; no modification to electrical connections required

8. Verdict: Mechanically Identical? 结论:机械性能是否完全相同?

The answer is nuanced rather than a simple yes or no. From the conductor through the insulation screen and inner sheath, the (N)TSCGEH3S is constructed identically to the (N)TSCGEWÖU. The electrical parameters, tensile ratings, bending radii, and travel speeds are the same. In this sense, the TENAX-LUMEN is mechanically equivalent for its intended trailing-cable function and can be used as a direct drop-in replacement in existing installations.

答案并非简单的”是”或”否”,而是需要细致分析。从导体到绝缘屏蔽层和内护套,(N)TSCGEH3S 与 (N)TSCGEWÖU 的构造完全一致。电气参数、拉伸额定值、弯曲半径和行进速度均相同。从这个意义上说,TENAX-LUMEN 在拖曳电缆功能上机械等效,可在既有装置中直接替换。

However, the outer sheath material change from PCP to TPU introduces measurable differences in the operating temperature envelope (wider cold range but narrower heat range) and in material-specific properties (higher abrasion resistance for TPU, higher inherent flame retardancy for PCP). The presence of the EL illumination string adds a small amount of weight and introduces a component that does not exist in the standard cable.

然而,外护套材料从 PCP 变更为 TPU 在工作温度范围(更宽的低温区间但更窄的高温区间)和材料特性(TPU 耐磨性更高,PCP 固有阻燃性更强)方面引入了可测量的差异。EL 发光元件增加了少量重量,并引入了标准电缆中不存在的组件。

Summary 总结

Electrically: Identical. Mechanically (core): Identical. Mechanically (outer sheath): Functionally equivalent with specific material trade-offs. Safety: The TENAX-LUMEN provides a significant operational safety upgrade with no compromise to the cable’s core function.

电气方面:完全相同。机械(芯线):完全相同。机械(外护套):功能等效但存在特定材料权衡。安全性:TENAX-LUMEN 在不影响电缆核心功能的前提下显著提升了运营安全性。

9. Application Guidance 应用指南

Selecting between (N)TSCGEWÖU and (N)TSCGEH3S depends on the operational priorities of each mine site. For 24/7 open-pit mining operations where nighttime visibility is critical and ambient temperatures frequently drop below −40 °C, the TENAX-LUMEN offers clear advantages. For applications where continuous high-temperature operation above 60 °C is required and ambient lighting is adequate, the standard PCP-sheathed cable remains the appropriate choice.

在 (N)TSCGEWÖU 和 (N)TSCGEH3S 之间选择取决于各矿区的运营优先级。对于夜间可视性至关重要且环境温度经常降至 −40°C 以下的全天候露天矿山,TENAX-LUMEN 优势明显。对于需要在 60°C 以上持续高温运行且环境照明充足的场合,标准 PCP 护套电缆仍是合适的选择。

Both cable types are available from Anhui Feichun Special Cable Co., Ltd. in the full range of cross-sections and voltage ratings per DIN VDE 0250-813, including configurations with integrated fiber-optic cores for data transmission.

安徽飞纯特种电缆有限公司提供上述两种电缆的全系列截面和电压等级产品(符合 DIN VDE 0250-813),包括集成光纤芯用于数据传输的配置。

References & Sources 参考来源

  1. Prysmian Group — “TENAX-LUMEN: Self-luminous power cable for trailing applications.” prysmian.com/en/tenax-lumen
  2. Prysmian Group — “Cable Solutions for Mining Industry.” prysmian.com — Mining
  3. Prysmian Group — “PROTOLON Medium Voltage Round Reeling Cables Datasheet.” Medium-Voltage-Round.pdf
  4. Prysmian Chile — “TENAX-LUMEN: El cable auto-iluminado para equipos móviles de minería.” chile.prysmian.com
  5. Eland Cables — “DIN VDE 0250 Standard Cable.” elandcables.com — VDE 0250
  6. Eland Cables — “(N)TSCGEWÖU Cable.” elandcables.com — NTSCGEWOU
  7. Victor Industrial Equipment / Engineering News — “Tenax-Lumen Self-Luminous Cable.” engineeringnews.co.za
  8. N-nergy — “R-(N)TSCGEWÖU MV Reeling Cable.” n-nergy.com
  9. Accuris Standards Store — “DIN VDE 0250-813: Trailing Cable.” accuristech.com
  10. DIN VDE 0250-813:1985-05 — “Cables, wires and flexible cords for power installation; trailing cable.” German National Standard.
  11. IEC 60228 — “Conductors of insulated cables.” International Electrotechnical Commission.
  12. DIN VDE 0207-20 / -21 — Insulation and sheath compounds for cables.
  13. DIN VDE 0298-3 / -4 — Use of cables and flexible cords in power installations; current carrying capacity.
  14. EN 60332-1-2 — Tests on electric cables under fire conditions.