FEICHUN CABLELT-GUM-R-TFCRANE(N)TSCGEWOEU3×35 + 3×25/3MV REELING CABLEDIN VDE 0250-813 REFERENCEVAHLE PROCUREMENT MARKING
LT-GUM-R-TFCRANE (N) TSCGEWOEU 3X35 & 3X25/3 REELING CABLE TFCRANE R MARK VAHLE — VAHLE marking, TFCrane reference and Feichun equivalent engineering guide
The supplied string combines a VAHLE procurement or marking reference with the TFCrane family name and the medium-voltage configuration 3×35 + 3×25/3. The current public TFCrane catalogue identifies the corresponding R-(N)TSCGEWÖU family as a flexible medium-voltage reeling cable based on DIN VDE 0250-813, with four selectable voltage classes from 3.6/6 kV to 12/20 kV [2]. Because the user string does not state the voltage class, this guide preserves every published variant and makes the voltage selection a deliberate RFQ gate.
Configuration
3×35 + 3×25/3
Three 35 mm² power cores plus a distributed earth-conductor arrangement.
Voltage decision
4 options
3.6/6, 6/10, 8.7/15 or 12/20 kV; the supplied string does not choose one.
Dynamic speed
180 m/min
Public TFCrane family maximum; actual speed depends on the reel and duty cycle.
Reference pull
2100 N
Catalogue row value for the 3×35 + 3×25/3 size across the listed voltage variants.
Contents
- Engineering position
- How to read the supplied designation
- Standards and source hierarchy
- Reference construction and load path
- Voltage classes and electrical limits
- Exact 3×35 + 3×25/3 catalogue rows
- Derived bending-radius and drum checks
- Resistance and current-carrying data
- Reeling mechanics and failure physics
- Application scenarios
- Installation and commissioning controls
- Selection comparison
- RFQ-ready specification
- Feichun functional-equivalent manufacturing
- Certification advantage
- Source audit and release note
1. Engineering position: the cable, reel and termination are one moving circuit
This is not a fixed MV feeder with a flexible jacket. The TFCrane family is designed for repeated winding and unwinding on monospiral or cylindrical reels under combined bending, tension and torsion. The official family page describes crane, port, mining and industrial material-handling use, while the current catalogue gives the more specific R-(N)TSCGEWÖU construction and four medium-voltage classes [1] [2]. A successful equivalent therefore has to match the mechanical duty as carefully as it matches conductor area.
Electrical duty
Carry a three-phase MV load through a flexible screened rubber construction, with the correct U₀/U, Uₘ, test voltage, partial-discharge requirement, current and earth path.
Carry a three-phase MV load through a flexible screened rubber construction, with the correct U₀/U, Uₘ, test voltage, partial-discharge requirement, current and earth path.
Mechanical duty
Repeatedly tolerate curvature, axial load, reel-layer contact, torsional displacement, guide contact and acceleration without transferring damaging stress into the cores.
Repeatedly tolerate curvature, axial load, reel-layer contact, torsional displacement, guide contact and acceleration without transferring damaging stress into the cores.
Environmental duty
Operate in wet or dry industrial conditions, open-cast or underground mining, ports and other locations where abrasion, impact, oil, UV and ozone exposure can be part of the service envelope.
Operate in wet or dry industrial conditions, open-cast or underground mining, ports and other locations where abrasion, impact, oil, UV and ozone exposure can be part of the service envelope.
Interface duty
Terminate the cable with a system that respects the screened core construction, earth arrangement, bending radius, strain relief and the selected MV accessories.
Terminate the cable with a system that respects the screened core construction, earth arrangement, bending radius, strain relief and the selected MV accessories.
Voltage first: do not quote “TSCGEWOEU 3×35 + 3×25/3” as a complete part number until the project confirms 3.6/6, 6/10, 8.7/15 or 12/20 kV. The outer diameter, weight, test voltage, insulation wall and accessory system change with the voltage class.
2. How to read the supplied designation without inventing a manufacturer relationship
| Supplied field | Engineering reading | What must be confirmed | Status |
|---|---|---|---|
| LT-GUM-R-TFCRANE | A purchaser or system-integrator reference string. VAHLE appears in the supplied marking context; it is not itself a DIN or IEC cable designation. | Exact VAHLE part number, controlled drawing, manufacturer of the original cable and catalogue revision. | User-supplied procurement text |
| (N) TSCGEWOEU | ASCII form of the public TFCrane R-(N)TSCGEWÖU medium-voltage flexible reeling family. The public catalogue states a DIN VDE 0250-813 basis. | Exact R/(N) variant, sheath compound, screen arrangement and voltage row. Do not decode every letter as a certificate. | Public family mapping |
| 3X35 & 3X25/3 | Normalized for engineering as 3×35 + 3×25/3: three 35 mm² power cores and a split earth-conductor arrangement represented by the catalogue notation. | Final PE total cross-section, number of earth sections, termination arrangement and marking. | Configuration field |
| REELING CABLE | Repeated winding/unwinding and guided travel, not merely occasional installation bending. | Reel type, barrel diameter, number of layers, speed, acceleration, travel length, cycles and guide layout. | Application field |
| TFCRANE R MARK VAHLE | A marking or procurement phrase that helps locate the installed product. | Whether “R” is a manufacturer suffix, reel-system designation or a shortened marking. Keep it for traceability; do not treat it as a universal performance class. | Open identification item |
Practical search convention: keep the purchaser’s raw wording in the RFQ subject line, then add the normalized engineering string
R-(N)TSCGEWÖU 3×35 + 3×25/3, the selected voltage, the reel type and the original part number. This preserves searchability without hiding the fields that actually determine interchangeability.3. Standards and source hierarchy
| Reference | Role | What it supports here | Boundary |
|---|---|---|---|
| Tele-Fonika / TFKable crane-cable page | Official product-family context. | TFCrane is presented for cranes, hoists, ports, shipyards, material handling and high mechanical loads; the page also describes testing on monospiral, festoon and drag-chain equipment. | The page is a family overview, not the exact 3×35 voltage-row drawing. |
| TFCrane Edition VII catalogue, 2026 | Primary public source for this article’s exact TSCGEWOEU row. | Pages 32–35 describe R-(N)TSCGEWÖU; the row table gives the four voltage variants, OD, mass and 2100 N row force; pages 108–111 give resistance and current reference tables. | The catalogue itself says data are illustrative and not a commercial offer; the controlled purchase document governs. |
| VAHLE download centre | System-integrator context for the VAHLE marking supplied by the purchaser. | Useful for identifying the original reel or handling-system document that should accompany the RFQ. | No exact target-cable dimensions are assigned from a generic VAHLE system page. |
| IEC 60228 | Conductor standard context. | The TFCrane catalogue specifies flexible class 5 tinned or bare copper conductors to IEC 60228. | A standard reference does not replace the actual conductor resistance and construction certificate. |
| IEC 60332-1-2:2025 | Fire-test method context. | The IEC page defines a 1 kW pre-mixed flame test for a single vertical insulated wire or cable. | A single-cable flame test is not a grouped-cable CPR class or a complete fire dossier. |
| DIN VDE 0250-813 / DIN VDE 0298-3 / DIN VDE 0298-4 | The catalogue’s design and installation framework. | 0250-813 is the stated MV reeling-cable basis; 0298-3 is used for bending-radius factors; 0298-4 is used for current-carrying capacity. | Adopt the edition and project rules required by the end user, authority and contract. |
Source discipline: the exact numeric data in this guide are mapped to the 2026 TFCrane public catalogue. They are not presented as a VAHLE certificate, a Feichun certificate or a legal declaration of interchangeability.
4. Reference construction and load path
Figure 1 — Reference TFCrane R-(N)TSCGEWÖU construction for the 3×35 + 3×25/3 configuration. The illustration makes the load path visible; it does not establish Feichun layer thicknesses or the final termination geometry.
| Layer / feature | Public catalogue description | Engineering purpose | Evidence status |
|---|---|---|---|
| Conductors | Flexible stranded annealed tin-coated or bare copper, class 5 to IEC 60228. | Fine stranding accommodates cyclic curvature; tinned copper can be selected where the project requires additional surface protection. | Public TFCrane reference |
| Semi-conductive separators | Tape between power conductor and insulation, and between earth conductor and semi-conductive layer. | Controls interfaces and supports a stable screened MV core system during repeated movement. | Public TFCrane reference |
| Conductor screen | Special semi-conductive rubber layer developed for the family. | Provides a controlled electrical field transition at the conductor/insulation boundary. | Public TFCrane reference |
| Insulation screen | Special strippable semi-conductive layer over the power-core insulation; catalogue maximum resistivity is stated as 200 Ω·m. | Allows a controlled screen interface at MV terminations; stripping practice must follow the accessory manufacturer’s instructions. | Public TFCrane reference |
| Insulation | Rubber insulation; exact family pages describe a special compound and the R-(N)TSCGEWÖU construction uses screened rubber power cores. | Provides dielectric strength and repeated-flex fatigue resistance. The exact compound and wall thickness follow the voltage release. | Public family / project confirmation |
| Earth conductor | Tin-coated or bare copper class 5 conductor with extruded special semi-conductive rubber compound; the earth conductor is split into three parts in the laid-up arrangement. | Provides the protective/fault-current path while allowing a round flexible construction. | Public TFCrane reference |
| Core arrangement | Power cores and earth conductor split into three parts laid up around a conductive centre filler; anti-adhesion graphite over the assembled cores. | Controls pressure, relative movement and friction inside the cable during reel cycles. | Public TFCrane reference |
| Inner sheath | Special synthetic thermosetting compound type 5GM3 to DIN VDE 0207/21; red reference colour. | Creates the supporting body around the core bundle before reinforcement. | Public TFCrane reference |
| Anti-torsion braid | Braid of polyamide threads between the internal and outer sheath layers. | Shares torsional and tensile stress through the sheath system. It is not metallic armour. | Public TFCrane reference |
| Outer sheath | Special synthetic thermosetting compound, 5GM5 quality to DIN VDE 0207/21; red reference colour. | External wear surface for reel contact, impact, tear and abrasion duty. | Public TFCrane reference |
Why the screen matters
At MV, the termination cannot be handled like a low-voltage rubber cable. Screen cutback, stress control, earth continuity and accessory compatibility must be released with the cable.
At MV, the termination cannot be handled like a low-voltage rubber cable. Screen cutback, stress control, earth continuity and accessory compatibility must be released with the cable.
Why the braid matters
The braid helps distribute mechanical stress, but it does not make the cable a lifting sling. A reel must be designed so the intended force path remains inside the approved limit.
The braid helps distribute mechanical stress, but it does not make the cable a lifting sling. A reel must be designed so the intended force path remains inside the approved limit.
Why 3×25/3 needs care
The notation is an arrangement description. The three earth sections are not automatically three separate 25 mm² protective conductors; confirm the total copper area and termination connection.
The notation is an arrangement description. The three earth sections are not automatically three separate 25 mm² protective conductors; confirm the total copper area and termination connection.
Why color is not proof
Red is the public TFCrane reference jacket colour. Feichun can use a project colour, but the marking, certificate and released drawing must identify the actual product.
Red is the public TFCrane reference jacket colour. Feichun can use a project colour, but the marking, certificate and released drawing must identify the actual product.
5. Voltage classes and electrical limits
The public R-(N)TSCGEWÖU table contains four electrical classes. The supplied VAHLE/TFCrane string does not identify the class, so all four are shown rather than silently selecting 6/10 kV.
| Rated voltage U₀/U | Maximum system voltage Uₘ | AC test voltage | Partial discharge | Max. conductor in service | Short-circuit conductor | Fixed ambient | Mobile ambient | Family speed / twist |
|---|---|---|---|---|---|---|---|---|
| 3.6/6 kV | 7.2 kV | 11 kV | 1.25U₀ / max. 20 pC | +90 °C | +250 °C | −40 °C | −25 °C | ≤180 m/min / ±100°/m |
| 6/10 kV | 12 kV | 17 kV | 1.25U₀ / max. 20 pC | +90 °C | +250 °C | −40 °C | −25 °C | ≤180 m/min / ±100°/m |
| 8.7/15 kV | 18 kV | 24 kV | 1.25U₀ / max. 20 pC | +90 °C | +250 °C | −40 °C | −25 °C | ≤180 m/min / ±100°/m |
| 12/20 kV | 24 kV | 29 kV | 1.25U₀ / max. 20 pC | +90 °C | +250 °C | −40 °C | −25 °C | ≤180 m/min / ±100°/m |
Voltage selection check
U₀/U is selected from the system insulation requirement, not from cable diameter alone.
Uₘ must be equal to or greater than the network maximum operating voltage.
AC test and partial-discharge requirements must be compatible with the released cable and MV accessories.
For a 12/20 kV order, for example, the public family row calls for Uₘ = 24 kV and an AC test voltage of 29 kV; this does not authorize applying those values to a 6/10 kV cable.
Important boundary: the public catalogue lists the R-(N)TSCGEWÖU family from 3.6/6 to 12/20 kV. If the original VAHLE document specifies another voltage, a different screen construction, or an integrated optical element, request the original controlled datasheet before treating this article as a substitute.
6. Exact 3×35 + 3×25/3 catalogue rows
These are the four exact size rows visible in the current public TFCrane catalogue. The supplier table labels the values as approximate for diameter and weight; use the released manufacturing drawing for final drum and termination calculations.
| Voltage variant | Conductor diameter (mm) | Approx. overall diameter (mm) | Approx. weight (kg/km) | Max. tensile load (N) | Derived mass (kg/m) | Engineering use |
|---|---|---|---|---|---|---|
| 3.6/6 kV | 7.8 | 42.5 | 2881 | 2100 | 2.881 | Lowest voltage / smallest reference OD |
| 6/10 kV | 7.8 | 44.2 | 3041 | 2100 | 3.041 | Common crane-network MV option |
| 8.7/15 kV | 7.8 | 47.7 | 3378 | 2100 | 3.378 | Higher insulation wall / larger OD |
| 12/20 kV | 7.8 | 52.5 | 3912 | 2100 | 3.912 | Highest listed voltage option |
Catalogue traceability: the exact source row is written as
3x35+3x25/3. The public catalogue also states standard cable packing of 500 m on drums, with other packing and delivery available on request. Packing length is a logistics field, not a guarantee that the installed reel can hold 500 m.| Value type | Example | How to use it |
|---|---|---|
| Source value | 12/20 kV row: OD 52.5 mm, mass 3912 kg/km, maximum tensile load 2100 N. | Use as a catalogue screening input and check against the controlled Feichun drawing. |
| Derived value | 3912 kg/km ÷ 1000 = 3.912 kg/m. | Useful for preliminary reel, support and acceleration calculations; do not treat it as a guaranteed delivered mass. |
| Project value | Actual jacket OD, reel barrel, start/stop acceleration and termination pull. | Must be released by the project before the equivalent is manufactured. |
7. Derived bending-radius and drum checks
Figure 2 — The published bending factors are installation-mode requirements. The final radius is calculated from the controlled maximum outer diameter and the actual reel geometry.
The TFCrane catalogue lists minimum bending factors according to DIN VDE 0298-3: 6×D fixed, 12×D on drums, 15×D on deflection pulleys and 10×D moving freely. The following numbers are transparent arithmetic using each voltage row’s approximate overall diameter.
| Voltage | Approx. OD D (mm) | Fixed 6D (mm) | Drum 12D (mm) | Deflection pulley 15D (mm) | Moving freely 10D (mm) | Screening note |
|---|---|---|---|---|---|---|
| 3.6/6 kV | 42.5 | 255 | 510 | 638 | 425 | Use controlled OD; rounded to nearest mm |
| 6/10 kV | 44.2 | 265 | 530 | 663 | 442 | Use controlled OD; rounded to nearest mm |
| 8.7/15 kV | 47.7 | 286 | 572 | 716 | 477 | Use controlled OD; rounded to nearest mm |
| 12/20 kV | 52.5 | 315 | 630 | 788 | 525 | Use controlled OD; rounded to nearest mm |
Screening formulas
R_min = k × D
For a first-layer drum geometry, a conservative barrel-diameter screen is approximately 2 × 12D = 24D when the cable centreline radius is treated as the controlling radius.
Example, 12/20 kV: 24 × 52.5 mm ≈ 1260 mm preliminary barrel diameter.
The reel builder must correct this for cable build-up, flange clearance, layer count, fleet angle, acceleration and the actual cable centreline.
Do not tighten the cable to fit the reel: the first damage often appears as internal core migration, screen distortion or sheath fatigue long before the jacket shows a dramatic mark. A reel with a smaller barrel may be physically capable of winding the cable and still be mechanically wrong.
8. Resistance and current-carrying data
The current catalogue provides a useful electrical screening table in its additional-parameters section. It is explicitly for 3-core cables at 30 °C ambient, and it states applicability to low-voltage cables up to 0.6/1 kV and medium-voltage cables up to 10 kV. For the 8.7/15 and 12/20 kV variants, use a project-specific MV calculation rather than extending the table without approval.
| Conductor area | Plain copper max. resistance at 20 °C (Ω/km) | Tin-coated copper max. resistance at 20 °C (Ω/km) | Use in this target |
|---|---|---|---|
| 35 mm² | 0.554 | 0.565 | Phase-core resistance screening for each 35 mm² power conductor |
| 25 mm² | 0.780 | 0.795 | Reference only; do not apply directly to each 25/3 earth section |
| 35 mm², 3-core reference condition | Current (A) | Scope / limitation |
|---|---|---|
| One cable on floor | 162 | 30 °C ambient; VDE 0298-4 reference table |
| Suspended freely in air | 170 | 30 °C ambient; improved heat dissipation |
| Monospiral reel, round cable | 130 | 30 °C ambient; 3-core reference |
| Festoon, flat cable | 79 | Not a target-construction rating; shown only as a catalogue comparison |
| Cylindrical reel, 1 layer | 130 | Layer-specific reference |
| Cylindrical reel, 2 layers | 99 | Layer-specific reference |
| Cylindrical reel, 3 layers | 79 | Layer-specific reference |
| Cylindrical reel, 4 layers | 68 | Layer-specific reference |
| Cylindrical reel, 5 layers | 62 | Layer-specific reference |
| Cylindrical reel, 6 layers | 44 | Layer-specific reference |
| Cylindrical reel, 7 layers | 36 | Layer-specific reference |
Engineer’s reading: the 162 A value is not a universal answer for a 3×35 + 3×25/3 reel cable. It is a table value at stated conditions. Reeling layers, adjacent circuits, ambient temperature, enclosure, duty cycle, harmonic current, voltage class and the earth arrangement must be included in the final thermal calculation.
9. Reeling mechanics and failure physics
| Stress source | What happens inside a moving cable | Design control |
|---|---|---|
| Repeated bending | Strands and insulation experience alternating strain each time the cable enters or leaves the drum. | Use the correct mode-specific radius; keep the cable aligned and avoid reverse curvature at a short S-bend. |
| Axial tension | The cable’s mass, acceleration, friction and slope create a combined tensile load. Terminations can see a higher local load than the free cable body. | Use approved strain relief, support the cable mechanically and compare the complete dynamic load with the catalogue row value and project limit. |
| Torsion | A reel or guide that changes cable twist can rotate the core bundle, braid and screen relative to one another. | Keep the cable’s natural lay direction, prevent twist accumulation and stay within the public ±100°/m family limit unless a released design says otherwise. |
| Layer pressure | Crossover, edge loading and flange contact can create local compression and abrasion even when the global radius is acceptable. | Control winding pitch, fleet angle, guide-roller spacing, flange clearance and layer transition. |
| Thermal cycling | Copper losses heat the cores; starting and stopping changes the thermal gradient while the cable is flexing. | Apply the installation-specific current table and derating factors; verify terminal temperature and short-circuit coordination. |
| Environmental attack | Oil, water, ozone, UV, dust and impact can age the outer compound or create a crack that propagates under flexing. | Specify the environment and verify the exact Feichun compound, test reports and inspection plan. |
Dynamic-load screening
F_total ≈ F_self-weight + F_acceleration + F_friction + F_slope + F_termination
The catalogue row value of 2100 N is a product-table limit, not a complete reel-system calculation.
For a 12/20 kV row, catalogue mass ≈ 3.912 kg/m, so the cable’s own weight is already ≈ 38.4 N/m before acceleration or friction. This is a preliminary screening observation only; it is not a permissible vertical-hang length.
10. Application scenarios
Figure 3 — Typical engineering contexts for the TFCrane MV reeling family. The original application must be checked against the chosen voltage row, reel geometry, environmental exposure and termination system.
Ship-to-shore and RTG cranes
Use the cable as the moving MV power connection only when the reel path, travel speed, acceleration and port environment are within the released design.
Use the cable as the moving MV power connection only when the reel path, travel speed, acceleration and port environment are within the released design.
Open-cast mining equipment
Excavators, dumpers, crushers and similar machines can combine high current with water, dust, impact, abrasion and torsion.
Excavators, dumpers, crushers and similar machines can combine high current with water, dust, impact, abrasion and torsion.
Conveyors and material handling
Confirm whether the cable is truly reeling or whether the machine needs a festoon, trailing or drag-chain construction; the families are not interchangeable by name.
Confirm whether the cable is truly reeling or whether the machine needs a festoon, trailing or drag-chain construction; the families are not interchangeable by name.
Industrial reels
For cylindrical or monospiral reels, release the barrel, flange, winding pitch, speed, layers and line-of-action together with the cable.
For cylindrical or monospiral reels, release the barrel, flange, winding pitch, speed, layers and line-of-action together with the cable.
11. Installation and commissioning controls
| Control point | Practical instruction | Acceptance evidence |
|---|---|---|
| Original identification | Photograph the sheath marking, VAHLE part number, reel nameplate and original datasheet before removal. | Traceable photo set and controlled document revision. |
| Voltage and accessories | Confirm U₀/U, Uₘ, AC test voltage, screen continuity, earth arrangement and compatible MV termination kit. | Cable/accessory compatibility matrix and test record. |
| Drum geometry | Measure barrel diameter, flange diameter, winding width, layer count, fleet angle and guide-roller positions. | Released reel drawing with cable OD and radius gates. |
| Cable handling | Pay off from the correct side, keep the cable in its natural lay, prevent loops, kinks and reverse twists, and do not drag the jacket over sharp edges. | Installation method statement and visual inspection. |
| Pulling and restraint | Use a pulling sock or approved mechanical attachment; keep conductor terminations out of the pulling load. | Pulling-force log and termination strain-relief inspection. |
| Electrical tests | Perform continuity, conductor resistance, screen/earth continuity, insulation and MV tests required by the selected voltage and contract. | Routine/type/acceptance test dossier. |
| First run | Run at low speed, observe layer tracking and guide contact, then increase speed while recording current, temperature, acceleration and tension. | Commissioning record with alarm limits. |
| Maintenance | Inspect jacket, braid exposure, flat spots, cracks, abrasion, screen continuity and reel alignment at a frequency set by duty and environment. | Inspection log and replacement criteria. |
Termination warning: do not cut the cable to an MV accessory before the exact voltage, screen, earth arrangement, outer diameter and bend radius are released. A good cable can be failed by a bad screen cutback or by a termination that transfers reel force into the conductor.
12. Selection comparison: what is and is not a substitute
| Candidate family | Primary duty | Why it differs from the target | Decision |
|---|---|---|---|
| TFCrane R-(N)TSCGEWÖU 3×35 + 3×25/3 | MV reeling on monospiral / cylindrical reels; 3.6/6 to 12/20 kV. | Target family; voltage row and original marking still need confirmation. | Use as the reference architecture. |
| Fixed-installation XLPE MV cable | Static underground, duct or tray feeder. | May meet voltage and conductor area but normally lacks the reeling braid, dynamic lay and approved torsion duty. | Not a drop-in dynamic substitute. |
| 0.6/1 kV NSHTOEU / low-voltage reeling cable | Low-voltage mobile power and reeling. | Voltage insulation system, screens, OD, accessories and fault duty are different. | Cannot replace the MV target. |
| TFCrane R-(N)TSKCGEWÖU or +FO variant | Different screened or fiber-integrated MV architecture. | Core layout, electromagnetic behaviour, OD and termination procedure differ from the plain TSCGEWOEU row. | Quote only after a new configuration matrix. |
| Generic rubber trailing cable | General mobile or trailing power. | May lack the required reel speed, anti-torsion braid, MV screen system and tested row data. | Do not accept by jacket appearance. |
Functional equivalence is a system statement: a replacement is credible only when voltage, electrical performance, mechanical duty, environmental resistance, interfaces, tests, markings and certification scope all match the original use case. “Same cross-section” is only one row in that matrix.
13. RFQ-ready technical specification
Figure 4 — RFQ release logic for the target. The exact raw marking remains useful, but the quote should carry the engineering fields beside it.
| RFQ field | Required answer | Why the supplier needs it | Status for this request |
|---|---|---|---|
| Original description | LT-GUM-R-TFCRANE (N) TSCGEWOEU 3X35 & 3X25/3 REELING CABLE TFCRANE R MARK VAHLE | Preserves procurement traceability and prevents a similar-looking cable from being substituted silently. | Supplied |
| Normalized configuration | LT-GUM-R-TFCRANE R-(N)TSCGEWOEU 3×35 + 3×25/3 reeling cable | Gives the engineering team a consistent search and drawing string. | Derived normalization |
| Exact voltage U₀/U | Select: 3.6/6, 6/10, 8.7/15 or 12/20 kV | Determines insulation system, screen, test voltage, OD, weight, accessories and current calculation. | Required |
| Uₘ / AC test / PD | Confirm from the original datasheet and network specification. | Controls insulation coordination, routine testing and terminations. | Required |
| Reel type | Monospiral or cylindrical; barrel/flange dimensions; winding width; layers. | Controls bending radius, layer pressure and heat dissipation. | Required |
| Motion duty | Speed, acceleration/deceleration, travel length, cycles/day, duty hours, fleet angle and torsion. | Controls dynamic fatigue and cable-life prediction. | Required |
| Mechanical limits | Minimum radius by mode, tensile load, twist, guide-roller spacing and end restraint. | Prevents installation loads from exceeding the approved cable design. | Family reference + project |
| Electrical load | Continuous current, overload, short-circuit current/duration, frequency, earthing, harmonics and EMC. | Controls conductor heating, screen/earth sizing and protection coordination. | Required |
| Environment | Wet/dry, oil, UV, ozone, dust, impact, temperature, altitude, mining or explosion-risk zone. | Selects compound, certification and inspection plan. | Required |
| Construction | Tinned or bare class 5 copper, screened rubber cores, 3×25/3 earth layout, inner/outer sheath, braid, colour and marking. | Creates a controlled functional equivalent rather than a visual copy. | Family reference + project |
| Tests and documents | Routine/type tests, dimensional report, resistance, screen continuity, MV test, PD where required, flame/oil/UV/ozone evidence and certificates. | Provides procurement and site acceptance evidence. | Required |
| Packing and length | Required cut length, drum dimensions, flange protection, cable end sealing, marking interval and delivery condition. | Prevents a 500 m catalogue packing option from being mistaken for a reel capacity or project length. | Required |
RFQ wording that works: “Please quote a Feichun functional equivalent to the supplied LT-GUM-R-TFCRANE (N) TSCGEWOEU 3×35 + 3×25/3 reeling cable. Confirm the exact voltage row, controlled OD, mass, conductor resistance, current-carrying basis, bending factors, speed, torsion, tensile load, construction drawing, test plan, marking and certificate scope. Do not substitute a different family without a written deviation list.”
14. Feichun functional-equivalent manufacturing
Feichun Cable can manufacture a complete functional-equivalent product for the same MV reeling duty: three 35 mm² flexible power cores, the required 3×25/3 earth-conductor arrangement, screened rubber insulation, inner sheath, anti-torsion reinforcement and heavy-duty outer sheath, with the selected voltage class and project-specific reel parameters. The replacement should be engineered from an independent Feichun drawing and verified against the original duty matrix.
| Feichun engineering action | What the customer receives | Why it protects the project |
|---|---|---|
| Independent construction | Feichun part number, layer drawing, conductor/compound specification and core/earth identification. | Prevents a visual imitation from being mistaken for a controlled cable design. |
| Side-by-side equivalence matrix | Original value, Feichun value, test method, tolerance, evidence and deviation status. | Makes “replacement” measurable for engineering and procurement review. |
| Mechanical validation | Bending, reeling, tensile, torsion, abrasion, oil, UV, ozone and environmental test plan as required. | Connects the cable design to the actual reel and site exposure. |
| Electrical validation | Conductor resistance, screen/earth continuity, insulation, MV withstand, partial discharge where required and accessory compatibility. | Controls the failure modes that a cross-section comparison cannot see. |
| Independent marking | Feichun marking with voltage, configuration, production traceability and meter identification. | Preserves traceability without copying VAHLE, TFCrane or another supplier’s proprietary marking. |
| IP and market-clearance support | A neutral product description and documentation package for buyer review. | Feichun avoids copying third-party trademarks, drawings and proprietary identifiers; freedom-to-operate and legal clearance remain the purchaser’s formal review. |
Patent-risk wording: Feichun can design and manufacture a technically equivalent replacement to the required performance envelope and can avoid copying third-party marks or proprietary drawings. No cable supplier can honestly guarantee zero patent risk without a product- and jurisdiction-specific freedom-to-operate review. Use the WIPO FTO framework and the USPTO public search as part of the buyer’s legal process.
15. Certification advantage: complete documentation, matched to the product scope
Engineered for maximum safety in demanding environments, our cable systems comply with global standards including ATEX, IECEx, VDE, CE, UKCA, EAC, and the Russian Fire Safety Certificate. They are the trusted choice for heavy-duty mining equipment, ship-to-shore cranes, RTG/RMG cranes, and conveyor systems where high reliability is non-negotiable.
Feichun’s advantage is not only the ability to reproduce the electrical size. We can organize the certification and test dossier around the actual product construction, voltage class, environment and end use. For the TSCGEWOEU equivalent, the quotation package should identify which documents apply to the exact cable and which are portfolio-level evidence.
| Document / approval | How it is used in a project | Release rule |
|---|---|---|
| ATEX | For equipment and cable-system use in defined explosive atmospheres where the installation assessment requires it. | Confirm zone, category, temperature class and whether the certificate covers the cable itself or the complete assembly. |
| IECEx | International explosive-atmosphere conformity route for applicable equipment and systems. | Match certificate scope, marking and assessed construction to the supplied application. |
| VDE | Supports German/European technical requirements and the relevant cable construction/test framework. | Do not treat a VDE reference in a catalogue as a certificate for a different Feichun construction. |
| CE / UKCA | Market-access declarations where the cable or completed equipment falls under applicable legislation. | Issue the correct declaration for the product and destination market; keep technical files controlled. |
| EAC | Market-access route for applicable Eurasian Economic Union destinations. | Confirm applicable technical regulations and exact product scope. |
| Russian Fire Safety Certificate | Fire-safety evidence for projects that require Russian fire classification or certification. | Confirm the current certificate, cable construction, validity and destination requirements. |
Certification boundary: certificates are not transferred by copying a part-number string. The final Feichun quotation must list the exact certificate number, product scope, voltage/configuration, test report and validity status applicable to the ordered cable.
16. Source audit and release note
- Tele-Fonika / TFKable — Crane cables: official family context, applications, movement and laboratory-test overview.
- TFCrane catalogue, Edition VII, 2026: R-(N)TSCGEWÖU construction, 3.6/6–12/20 kV electrical data, exact 3×35 + 3×25/3 rows, bending factors, speed, torsion, resistance and current reference tables.
- VAHLE download centre: system-document source to be checked against the original reel or handling-equipment file supplied by the buyer.
- IEC 60228: independent conductor-standard reference.
- IEC 60332-1-2:2025: current IEC page for the single-cable vertical flame test method.
- WIPO freedom-to-operate toolkit and USPTO Patent Public Search: legal-review starting points, not a legal opinion.
Release note: the public TFCrane catalogue says that its tables and drawings are illustrative and not a commercial offer, and that suitability should be assessed by a qualified person. Before Feichun production, confirm the original VAHLE part number, selected voltage row, actual reel geometry, current, environment, terminations, required approvals and the final side-by-side test dossier.
