FEICHUN CABLEREELTEC (K)NSHTU-JB4G3500.6/1 KVREELING CABLEHEAVY-DUTY REELRFQ ENGINEERING GUIDE
REELTEC (K) NSHTU-JB 4G350, 0.6/1 KV, REELING CABLE — four-core 350 mm² reeling-cable engineering guide
The corrected procurement string identifies a REELTEC (K) NSHTU-JB 4G350, 0.6/1 kV cable for reeling service. The notation 4G350 is normally read as four cores of 350 mm² with a protective-conductor designation, but the released core schedule must confirm that interpretation. The corrected voltage is reproduced as 0.6/1 KV, consistent with the public low-voltage NSHTÖU family context. The exact 4G350 construction, dimensions, ratings and dynamic limits remain project-specific release items.
Core configuration
4G350
Four nominal 350 mm² cores as the working procurement reading; core schedule to confirm.
Rated voltage
0.6/1
Corrected buyer rating, consistent with the public low-voltage family context.
Mechanical class
REELING
Reel geometry, mass, radius, speed and tension must be released together.
Public comparator
4G185
TKD public family table reaches 4G185; no 4G350 row is used as a substitute.
Contents
- Engineering position
- How to read the raw designation
- Voltage and interface validation
- Public family evidence
- Reference cross-section
- 4G185 comparator boundary
- Exact target data matrix
- Electrical and thermal design
- Reel mechanics
- Application scenes
- Installation and FMEA controls
- Feichun functional equivalent
- Certification and documents
- RFQ release checklist
- Source audit
1. Engineering position: the corrected 0.6/1 kV rating sets the product boundary
The voltage correction is now incorporated. The working product rating is
0.6/1 kV, matching the low-voltage notation used in public NSHTÖU family context. The remaining engineering task is to release the exact 4G350 construction, conductor/core schedule, test basis, accessories, current rating and dynamic limits for the actual machine.Electrical job
Use 0.6/1 kV as the working rated voltage, then coordinate insulation, voltage test, current, short-circuit duty and terminations against the project system.
Use 0.6/1 kV as the working rated voltage, then coordinate insulation, voltage test, current, short-circuit duty and terminations against the project system.
Mechanical job
Four nominal 350 mm² cores create a very large, heavy moving assembly. The final cable mass, drum torque, guide pressure and end restraint must be calculated rather than scaled from a smaller row.
Four nominal 350 mm² cores create a very large, heavy moving assembly. The final cable mass, drum torque, guide pressure and end restraint must be calculated rather than scaled from a smaller row.
Core-identification job
The letter G normally indicates a protective conductor in common European nomenclature. The exact 4G350 core marking, conductor purpose and terminal arrangement must be confirmed.
The letter G normally indicates a protective conductor in common European nomenclature. The exact 4G350 core marking, conductor purpose and terminal arrangement must be confirmed.
Dynamic job
Reeling performance depends on strand design, short lay, inner sheath, reinforcement, outer rubber, guide geometry, acceleration and torsion—not on the 350 mm² number alone.
Reeling performance depends on strand design, short lay, inner sheath, reinforcement, outer rubber, guide geometry, acceleration and torsion—not on the 350 mm² number alone.
Data boundary: no exact public 4G350 row was located. This article does not invent outer diameter, weight, ampacity, minimum radius, speed, tensile load, temperature, test voltage or certification for the target.
2. How to read the raw designation
| Raw field | Engineering reading | Quotation consequence | Status |
|---|---|---|---|
| REELTEC (K) | Product-family / series wording supplied by the buyer; public TKD material uses REELTEC® (K) NSHTÖU family spelling with an umlaut. | Retain the buyer spelling, but confirm the manufacturer, current catalogue revision and exact model code. | User-supplied / public family context |
| NSHTU-JB | Buyer spelling of an NSHTÖU-JB-style reeling-cable designation; public family pages show related J and JB nomenclature. | Do not change JB to J, or J to JB, without the controlled datasheet and core-identification schedule. | User-supplied / suffix boundary |
| 4G350 | Normally read as four cores, each nominally 350 mm², with G indicating a protective conductor. | Confirm whether all four cores are 350 mm² and whether the fourth core is PE, neutral, or another project function. | Normalised interpretation |
| 0.6/1 KV | Corrected voltage notation supplied by the buyer. | Use 0.6/1 kV as the working rating and confirm the project U₀/U, Uₘ, standard and accessory interface in the technical submittal. | Corrected by buyer |
| REELING CABLE | Cable intended for repeated winding/unwinding and guided dynamic movement. | Release reel type, travel, speed, acceleration, torsion, radius, guide and termination conditions. | User-supplied application |
Correction applied: the title, RFQ wording and technical reading now use
0.6/1 KV. The remaining electrical work is confirmation of the system interface, Uₘ, applicable product standard, test voltage and accessories.3. Voltage and interface validation
| Question | Why it matters | Required evidence |
|---|---|---|
| Is 0.6/1 kV correctly mapped to the project system? | The corrected product rating must align with the system nominal voltage, earthing arrangement and equipment interface. | System single-line diagram, project voltage schedule and purchaser confirmation. |
| Which Uₘ, standard and test level apply? | Rated voltage, maximum system voltage, routine test and accessory design must be consistent. | Product standard, AC test voltage, insulation resistance and type/routine test report. |
| Which routine and type tests are required? | The corrected voltage alone does not establish the complete product evidence package. | Routine test schedule, type-test plan, insulation resistance and agreed inspection dossier. |
| What protection and termination apply? | The fourth core and voltage class affect PE, neutral, screen, gland, lug and protection arrangements. | Termination drawing, protection study and approved accessory list. |
Safe quotation wording
Voltage corrected by purchaser: 0.6/1 kV. Please confirm the project Uₘ, applicable product standard, test level and accessory interface before final construction release.What Feichun should not do
Do not assign an insulation thickness, test certificate or accessory class from a family spelling alone.
Do not assign an insulation thickness, test certificate or accessory class from a family spelling alone.
Why this matters at the machine
Voltage affects terminations, clearances, test methods, field conditions and the documentation a port or mining project will request.
Voltage affects terminations, clearances, test methods, field conditions and the documentation a port or mining project will request.
Search discipline
Use both the corrected procurement string and the public NSHTÖU family spelling when building the technical submittal, while keeping the exact buyer identity unchanged.
Use both the corrected procurement string and the public NSHTÖU family spelling when building the technical submittal, while keeping the exact buyer identity unchanged.
Figure 1 — Corrected voltage path. The 0.6/1 kV rating is fixed; the remaining checks concern the project interface and exact 4G350 construction.
4. Public family evidence
| Reference | What it supports | How it is used | Boundary |
|---|---|---|---|
| TKD REELTEC® (K) NSHTÖU catalog | TKD public 2021 catalogue identifies REELTEC® (K) NSHTÖU family nomenclature and gives public rows for 4G sizes through 4G185, including OD, copper index and weight. | Confirms the family context and provides a clearly labelled 4G185 comparator. | No exact 4G350 row; no target value is extrapolated. |
| public NSHTÖU family technical page | A public NSHTÖU family page describes reeling use with tensile/torsional stress, flexible stranded copper, rubber insulation/sheaths and 600/1000 V family rating. | Explains the general engineering logic of an NSHTÖU-style reeling cable. | Family-level reference from another manufacturer; not proof of REELTEC (K) NSHTU-JB 4G350 conformity. |
| IEC 60228 | Conductor nominal area, resistance and flexible conductor class framework. | Use when releasing the 350 mm² conductor design and resistance limits. | The standard does not prove the target conductor class or rating. |
| IEC 60332-1-2 | Single-cable vertical flame-propagation test-method context. | Use only when the project asks for this test and the ordered construction is tested. | It is not a CPR class or a complete grouped-cable fire declaration. |
The public family is useful for nomenclature and engineering logic. It is not a substitute for the missing 4G350 manufacturer row. The correct Feichun quotation must release the exact target drawing.
5. Reference cross-section and load path
Figure 2 — Schematic 4G350 architecture. The fourth core is labelled “PE?” because the supplied G notation suggests a protective-conductor question that must be resolved in the core schedule.
| Functional layer | Public family context | 4G350 release requirement | Status |
|---|---|---|---|
| Four flexible conductors | Public family sources describe flexible stranded copper; the buyer specifies 4G350. | Strand class, copper condition, nominal resistance, conductor diameter and core-purpose schedule. | Family context + buyer size |
| Insulation | Public NSHTÖU family information describes rubber/elastomer insulation. | Exact compound, thickness, voltage class, temperature, insulation resistance and test voltage. | Family context; target TBC |
| Core lay / filler | A reeling family generally needs controlled lay and support geometry. | Lay length, filler, separator, pressure control and manufacturing drawing. | Engineering requirement |
| Inner sheath | Public family descriptions include an inner rubber/sheath support system. | Compound, thickness, adhesion, environmental properties and dynamic interaction. | Family context; target TBC |
| Anti-torsion reinforcement | Public NSHTÖU family information describes textile-braided reinforcement. | Material, coverage, tensile role, torsion limit and end-grip method. | Family context; target TBC |
| Outer sheath | Public family information describes a special black rubber outer sheath. | Exact compound, wall thickness, abrasion/oil/UV/ozone/fire evidence and marking. | Family context; target TBC |
G is not a complete drawing
In common European nomenclature, G generally indicates a protective conductor. The actual conductor colour, cross-section, termination and circuit role still require confirmation.
In common European nomenclature, G generally indicates a protective conductor. The actual conductor colour, cross-section, termination and circuit role still require confirmation.
Reinforcement is not armour
A textile braid shares mechanical stress but is not a metallic earth or armour path unless the design explicitly says so.
A textile braid shares mechanical stress but is not a metallic earth or armour path unless the design explicitly says so.
4G350 is mechanically large
The final cable must be checked for handling, reel torque, guide opening, bending stress and end restraint, not only current capacity.
The final cable must be checked for handling, reel torque, guide opening, bending stress and end restraint, not only current capacity.
Voltage sets the layer design
The corrected 0.6/1 kV rating must be carried consistently into insulation, test evidence, terminations and accessories.
The corrected 0.6/1 kV rating must be carried consistently into insulation, test evidence, terminations and accessories.
6. 4G185 comparator boundary — useful evidence, not the 4G350 target
Public comparator warning: the TKD catalogue page lists a 4G185 row with an outer diameter range of 67.4–75.0 mm, copper index of 7,105 kg/km and weight of 11,150 kg/km. These are 4G185 family values only. They are not 4G350 values and must not be scaled linearly.
| Public family comparator | Published 4G185 value | Why it is shown | Why it cannot be used for 4G350 |
|---|---|---|---|
| Outer diameter | 67.4–75.0 mm | Demonstrates that the family publishes a finished OD range rather than a single nominal diameter. | Lay, insulation, sheath, braid and 350 mm² conductor geometry do not scale linearly. |
| Copper index | 7,105 kg/km | Shows how catalogue material indices are reported. | 4G350 has a different conductor area, strand design and likely construction; no target copper index is supplied. |
| Cable weight | 11,150 kg/km | Shows the magnitude of family mass at a smaller public size. | Do not use it for reel torque, shipping or support calculations for 4G350. |
| Item / row | 4G185 public row | Provides a traceable family comparator from the TKD catalogue. | The exact 4G350 item number and row are not publicly verified here. |
Do not use: D4G350 = D4G185 × (350 / 185)
Do not use: m4G350 = m4G185 × (350 / 185)
Correct approach: release conductor construction + insulation + lay + reinforcement + sheath, then calculate and verify the finished OD, mass, radius and thermal data.
7. Exact target data matrix
| Parameter | Target value / reading | Engineering use | Evidence class |
|---|---|---|---|
| Raw procurement description | REELTEC (K) NSHTU-JB 4G350, 0.6/1 KV, REELING CABLE | Keep unchanged in title, RFQ, quotation, drawing and inspection records. | Supplied verbatim |
| Product family | REELTEC (K) NSHTU-JB | Buyer identity; public sources use related NSHTÖU / NSHTÖU-J family spellings. | Supplied + family context |
| Core configuration | 4G350 | Working reading: four nominal 350 mm² cores; confirm per-core area and PE role. | Supplied / interpretation |
| Voltage notation | 0.6/1 KV | Corrected buyer value; use consistently in the technical submittal. | Corrected by buyer |
| Public family voltage | 0.6/1 kV appears in public NSHTÖU family references | Consistent family comparator; it does not prove the exact 4G350 construction. | Public family context |
| Conductor material / class | Not supplied for 4G350 | Resistance, flexibility, corrosion and termination design. | Project confirmation |
| Core identification / PE | Not supplied; G suggests a protective-conductor question | Terminal layout, fault path, marking and protection. | Project confirmation |
| Insulation / screens | Not supplied | Voltage class, field control, test level, temperature and accessory design. | Project confirmation |
| Inner / outer sheath | Not supplied for exact 4G350 | Abrasion, oil, UV, ozone, water, fire and dynamic life. | Project confirmation |
| Outer diameter | Not publicly verified for 4G350 | Reel barrel, flange, guides, glands, support and radius. | Project confirmation |
| Approximate weight | Not publicly verified for 4G350 | Reel torque, support load, transport and installation handling. | Project confirmation |
| Current rating | Not publicly verified for 4G350 | Thermal calculation under actual installation and duty cycle. | Project confirmation |
| Minimum dynamic bend radius | Not publicly verified for 4G350 | Drum, guide, payout and termination method statement. | Project confirmation |
| Speed / acceleration / torsion | Not supplied | Flex-fatigue, braid load, guide stress and expected life. | Project confirmation |
| Tensile / end restraint | Not supplied | Grip, clamp, support and termination safety. | Project confirmation |
| Fire / oil / environmental class | Not supplied | Select test plan and market declaration for the actual compound. | Project confirmation |
| Certificate scope | Not supplied | Must match exact construction, market, factory and application. | Project confirmation |
8. Electrical and thermal design
Voltage and interface
Use the corrected 0.6/1 kV rating consistently, then confirm Uₘ, test voltage, clearances, terminations and compliance documents.
Use the corrected 0.6/1 kV rating consistently, then confirm Uₘ, test voltage, clearances, terminations and compliance documents.
Current is not printed by 350
Four large cores may carry a high current, but the permissible value depends on the actual conductor, ambient, grouping, reel layers, air movement, duty cycle and terminal temperature.
Four large cores may carry a high current, but the permissible value depends on the actual conductor, ambient, grouping, reel layers, air movement, duty cycle and terminal temperature.
Fault path
Confirm whether the G core is PE, how screens are bonded and how the protective device clears a fault. Do not treat the textile braid as the protective path.
Confirm whether the G core is PE, how screens are bonded and how the protective device clears a fault. Do not treat the textile braid as the protective path.
Drum thermal behaviour
Layered cable can dissipate heat differently from an open-surface installation. A fixed-table current value must not be copied into a reel calculation.
Layered cable can dissipate heat differently from an open-surface installation. A fixed-table current value must not be copied into a reel calculation.
Thermal screening: Iallow = f(R20, θamb, conductor temperature, grouping, reel-layer build-up, air movement, duty cycle)
Voltage drop: ΔU = I × L × (R(T) cosφ + X sinφ) — use released conductor and AC data
Short circuit: I²t ≤ k²S² — use released material, temperature limits and clearing time
Dynamic screening: Rmachine ≥ Rmanufacturer; do not substitute the 4G185 comparator
Practical result: a responsible quotation for 4G350 must carry the corrected 0.6/1 kV rating and a project-specific current calculation. Publishing a guessed ampacity would create a false sense of equivalence.
9. Reeling mechanics
Figure 3 — Mechanical release gates for 4G350. The drawing intentionally contains no invented radius, speed, mass or tension value.
| Mechanical input | Failure mechanism if ignored | RFQ question |
|---|---|---|
| Drum barrel / flange | Layer build-up changes bend radius, torque, contact pressure and thermal dissipation. | Provide barrel diameter, flange diameter, cable length, layer count and winding direction. |
| Guide / fleet angle | Edge loading, folding, crossover or forced torsion can damage the sheath and cores. | Provide roller width, radius, spacing, offset, edge protection and alignment tolerance. |
| Speed / acceleration | Start/stop and emergency braking create dynamic tension beyond steady travel load. | State maximum speed, acceleration, braking, travel and cycle frequency. |
| Torsion | Twist can accumulate in the cable and transfer into the core lay or braid. | State allowable torsion and how the machine controls twist. |
| End restraint | Large cable mass can pull through a gland or termination if the support system is undersized. | Provide clamp/grip length, support method, bend exit and terminal-entry geometry. |
| Environment | Oil, water, salt, dust, UV, ozone and temperature change sheath friction and service life. | Provide chemical list, ambient range, exposure and cleaning method. |
10. Application scenes
Figure 4 — Typical heavy-equipment contexts for evaluating a 4G350 reeling cable. The illustration is not a product approval.
Port crane / hoist
Check high starting current, reel torque, salt mist, UV, guide alignment, emergency braking and cable support at the moving machinery.
Check high starting current, reel torque, salt mist, UV, guide alignment, emergency braking and cable support at the moving machinery.
Mining mobile equipment
Verify impact, abrasion, water, oil, dust, earthing, fire requirements and whether a dedicated mining trailing-cable standard is required.
Verify impact, abrasion, water, oil, dust, earthing, fire requirements and whether a dedicated mining trailing-cable standard is required.
Material-handling machine
Check continuous travel, repeated reversals, slope, guide rollers, winding direction and thermal duty under full load.
Check continuous travel, repeated reversals, slope, guide rollers, winding direction and thermal duty under full load.
Festoon / reel transition
Ensure the large cable enters the moving path without edge folding, reverse twist or excessive local bend at the termination.
Ensure the large cable enters the moving path without edge folding, reverse twist or excessive local bend at the termination.
11. Installation and FMEA controls
| Observed problem | Likely mechanism | Preventive control |
|---|---|---|
| Voltage / interface mismatch | The corrected 0.6/1 kV rating is not carried consistently into the system interface, test basis or accessories. | Record U₀/U, Uₘ, standard, test level and accessory selection in the approved submittal. |
| Sheath split / abrasion | Sharp guide, edge loading, wrong compound, radius below limit or layer crossover. | Verify guide surfaces, compound, radius, winding and inspection method. |
| Conductor fatigue | Conductor class or lay unsuitable for repeated bending, torsion or short unsupported exit. | Release flexible conductor design, bend path and end restraint; qualify the dynamic duty. |
| PE continuity loss | Fourth core damaged, incorrectly identified or poorly terminated. | Confirm G/core schedule and test continuity/resistance before and after installation. |
| Overtemperature | Current copied from a smaller/fixed cable row or reel-layer heat trapped. | Run the installed thermal study and record current and temperature during commissioning. |
| Cable twist lock | Off-axis payout, unequal layers, reverse torsion or poor guide alignment. | Control winding direction, fleet angle, guides and transition support. |
| Termination pull-out | Large cable mass and acceleration transferred through cores instead of a designed grip. | Use a rated clamp/support and preserve the released bend exit. |
Commissioning sequence: inspect the stationary route; confirm voltage, core identity and end restraint; move slowly through the full stroke; check for edge loading, crossover, twist and scraping; test electrical functions; then increase speed and load in controlled steps while recording temperature and abnormal noise.
12. Feichun functional equivalent
Feichun Cable can engineer a functional equivalent to the confirmed REELTEC (K) NSHTU-JB 4G350 duty. The equivalent should be developed from an independent construction drawing, selected materials and a controlled test plan, matching the required interface without copying third-party proprietary drawings, protected markings or undocumented construction details.
| Design gate | Feichun deliverable | Purchaser benefit |
|---|---|---|
| Voltage and interface | Written record of 0.6/1 kV, system earthing, Uₘ, test basis and accessory class. | Prevents the cable design and termination package from being released with inconsistent electrical interfaces. |
| Core construction | Four-core 350 mm² drawing, conductor class, PE/core schedule, insulation and sheath system. | Creates a traceable electrical and mechanical interface. |
| Dynamic design | OD, mass, radius, speed, acceleration, torsion, tensile/support method and reel compatibility. | Allows the reel supplier and installer to use controlled numbers. |
| Verification | Routine electrical tests plus agreed mechanical, environmental and fire evidence. | Separates product evidence from generic family claims. |
| Traceability | Batch records, dimensional inspection, conductor resistance and final technical dossier. | Supports export inspection and future maintenance. |
13. Certification and documentation
Feichun Cable supports certification-oriented export projects. Depending on the ordered construction and target market, documentation can be coordinated around ATEX, IECEx, VDE, CE, UKCA, EAC and the Russian Fire Safety Certificate requirements. The exact certificate, scope and marking must be confirmed for the ordered 4G350 construction and voltage; certification names are not a substitute for product-specific evidence.
| Document / mark | Question to resolve | Release rule |
|---|---|---|
| ATEX / IECEx | Is the cable used in a classified explosive atmosphere or supplied as part of certified equipment? | Confirm zone, group, temperature class, equipment boundary and certificate scope. |
| VDE / CE | Which product standard, technical file or declaration applies to the confirmed 0.6/1 kV construction? | Match the declaration to the exact product, factory and market requirements. |
| UKCA / EAC | Which current conformity route and technical regulation apply? | Confirm market documentation before shipment. |
| Russian Fire Safety Certificate | Does the tender or installation require a Russian fire-safety document? | Confirm exact scope, validity, language and product construction. |
| Factory dossier | Can the purchaser audit construction, materials, tests, dimensions and batch traceability? | Provide the agreed inspection and test dossier with shipment. |
14. RFQ release checklist
Figure 5 — RFQ sequence. The corrected 0.6/1 kV rating is fixed first, followed by the exact construction, machine duty and evidence package.
| RFQ field | Minimum answer required | Reason |
|---|---|---|
| Raw identity | REELTEC (K) NSHTU-JB 4G350, 0.6/1 KV, REELING CABLE | Preserves the original search and procurement string. |
| Voltage | 0.6/1 kV confirmed; provide system diagram, Uₘ, test basis and accessory class. | Prevents a material and test mismatch. |
| Core arrangement | Confirm 4×350 mm², G/PE role, core colours, numbering and terminal schedule. | Controls current, fault path and termination. |
| Construction | Conductor class/material, insulation, screen, inner sheath, braid, outer sheath and marking. | Creates the released cable identity. |
| Motion duty | Reel/festoon geometry, travel, speed, acceleration, cycles, torsion, radius, guides and end restraint. | Enables dynamic qualification. |
| Electrical duty | Current, voltage drop, fault current, clearing time, frequency and ambient/grouping conditions. | Enables thermal and protection calculations. |
| Environment and documents | Oil, water, salt, UV, ozone, dust, fire class, certification and inspection plan. | Defines material and evidence package. |
Recommended RFQ sentence
Quote a Feichun independent functional equivalent to REELTEC (K) NSHTU-JB 4G350, 0.6/1 KV, REELING CABLE; confirm the 4G350 core schedule, construction, Uₘ, test basis, OD, mass, current, radius, speed, tensile/support method, tests and certification scope.Keep the corrected voltage visible
The buyer has corrected the rating to 0.6/1 kV. Carry it consistently through the RFQ, drawing, accessory schedule and inspection documents.
The buyer has corrected the rating to 0.6/1 kV. Carry it consistently through the RFQ, drawing, accessory schedule and inspection documents.
15. Engineering summary
Recommended technical reading: the request is for a very large four-core REELTEC (K) NSHTU-JB reeling cable identified as 4G350 at 0.6/1 kV. The voltage correction is incorporated; public REELTEC/NSHTÖU family references are used only as family context. The correct Feichun engineering action is to preserve the corrected buyer string, confirm the core schedule and project interface, and then release an independent construction drawing with product-specific dimensions, ratings, dynamic limits, tests and certificates.
Feichun Cable technical contact
[email protected]
Technical RFQ, drawings, standards and certification scope
[email protected]
Technical RFQ, drawings, standards and certification scope
Source audit and publication note
- TKD REELTEC® (K) NSHTÖU catalog: public TKD 2021 catalogue page for the REELTEC® (K) NSHTÖU family and comparator rows through 4G185.
- public NSHTÖU family technical page: public NSHTÖU family application and construction context, including 600/1000 V family wording; not treated as an exact REELTEC 4G350 datasheet.
- IEC 60228: conductor area, resistance and flexibility-class reference context.
- IEC 60332-1-2: single-cable flame-test method context; no product fire class is claimed here.
Prepared for Feichun Cable on 05 August 2026. The raw procurement description is preserved. Public family data are labelled as comparators; missing 4G350 values remain project-confirmation fields. No external contact details are reproduced.
