FEICHUN CABLEN2XSH 12/20 kVB2ca-s1,d0,a11×70/25 mm²Cu / XLPE / LSZHIEC 60332-3 CAT. C
Feichun N2XSH 12/20 kV — B2ca Fire-Performance Medium-Voltage Cable
A full-English engineering guide for the N2XSH 1×70/25 mm² (1×70/25 mm2) single-core medium-voltage cable reference: stranded class 2 copper conductor, XLPE insulation, semi-conducting screens, concentric copper wire and copper tape screen, LSZH red sheath, UV resistance, rodent protection and B2ca-s1,d0,a1 declared fire performance.
Rated voltage U₀/U (Uₘ)
12/20 kV
24 kV maximum system voltage in the source notation.
Fire performance
B2ca
s1,d0,a1 declared reaction-to-fire performance.
Conductor / screen
70 / 25 mm²
Single copper core and concentric metallic screen section.
Laying radius
12 × D
380.4 mm derived from the 31.7 mm source outside diameter.
Contents
- Engineering position
- Designation and application
- Standard-basis review
- Complete source specification matrix
- Layer-by-layer cross-section
- Electrical and thermal design
- Fire performance and LSZH
- Industrial installation scenes
- Handling and termination
- Selection comparison
- Installation acceptance
- Failure mode analysis
- Feichun certification scope
- Source and data audit
1. Engineering position: a fire-performance MV cable for fixed energy networks
N2XSH 12/20 kV is a single-core, XLPE-insulated, copper-conductor medium-voltage cable with a concentric metallic screen and LSZH outer sheath. The supplied 1×70/25 mm² reference is intended for fixed energy-network service in residential or industrial areas, underground routes and cable ducts, including networks exposed to sudden load changes where low dielectric losses are valuable.
Electrical platform
The 70 mm² class 2 RM copper conductor provides the current path; the 12/20 kV insulation system and semi-conducting screens control the electric field around the single core.
The 70 mm² class 2 RM copper conductor provides the current path; the 12/20 kV insulation system and semi-conducting screens control the electric field around the single core.
Fire-performance platform
B2ca-s1,d0,a1, LSZH construction, IEC 60332-3 Cat. C, IEC 61034-2 and IEC 60754-1/-2 address different fire, smoke and halogen-related performance questions.
B2ca-s1,d0,a1, LSZH construction, IEC 60332-3 Cat. C, IEC 61034-2 and IEC 60754-1/-2 address different fire, smoke and halogen-related performance questions.
Mechanical and environmental platform
The source lists UV resistance and rodent protection. The 12 × D laying factor and class 2 stranded conductor improve installation handling, but do not create continuous-flex or reel duty.
The source lists UV resistance and rodent protection. The 12 × D laying factor and class 2 stranded conductor improve installation handling, but do not create continuous-flex or reel duty.
System platform
Single-core formation, screen bonding, cleats, terminations, induced-current control, current rating and short-circuit duty must be designed as one MV cable system.
Single-core formation, screen bonding, cleats, terminations, induced-current control, current rating and short-circuit duty must be designed as one MV cable system.
Data boundary: the article preserves the supplied Nexans reference values and uses them as an engineering benchmark for Feichun product development. They are not silently presented as a current Feichun manufacturing drawing, Feichun catalogue code or Feichun certificate. Exact Feichun product data, test reports and project approvals must be issued separately.
2. N2XSH designation and application logic
| Designation element | Engineering meaning | Design consequence | Source status |
|---|---|---|---|
| N | European / national designation family | Always read the complete construction and governing standard; the first letter alone is not a sufficient purchase specification. | Designation context |
| 2X | XLPE insulation | Provides the dielectric system for the stated medium-voltage class and 90 °C continuous conductor limit. | Reference construction |
| S | Copper metallic screen | Provides a defined screen / earth-fault path and electric-field control when correctly bonded and terminated. | Reference construction |
| H | Halogen-free / LSZH sheath family | Supports low-smoke and halogen-free fire strategy; exact CPR performance remains product-specific. | Reference construction |
| 1×70/25 mm² | One 70 mm² conductor with a 25 mm² metallic-screen section | Conductor and screen must both be included in accessory selection, fault-current study and termination design. | Nexans reference item |
| B2ca-s1,d0,a1 | Declared CPR reaction-to-fire performance | Relevant to the project fire strategy, but not a substitute for route design, fire stopping or local building requirements. | Nexans DoP / product page |
Suitable service logic
Fixed distribution feeders, transformer connections, industrial plants, switchgear, process facilities, residential or industrial areas, underground routes and ducts when the accessory and installation design are compatible.
Fixed distribution feeders, transformer connections, industrial plants, switchgear, process facilities, residential or industrial areas, underground routes and ducts when the accessory and installation design are compatible.
Do not overextend the designation
N2XSH is not automatically a mining trailing cable, crane reeling cable, festoon cable, drag-chain cable or continuous-torsion cable. A 12 × D laying factor is an installation minimum, not a dynamic-cycle rating.
N2XSH is not automatically a mining trailing cable, crane reeling cable, festoon cable, drag-chain cable or continuous-torsion cable. A 12 × D laying factor is an installation minimum, not a dynamic-cycle rating.
Low dielectric loss and load changes
The source application statement links the cable to energy networks with sudden load changes. Final thermal and voltage-drop calculations must still use the actual load profile, formation, ambient and route length.
The source application statement links the cable to energy networks with sudden load changes. Final thermal and voltage-drop calculations must still use the actual load profile, formation, ambient and route length.
Screen function
The copper wire plus copper tape screen is not merely an EMC decoration. Its section, continuity, bonding and fault duty must be closed at both ends according to the system earthing design.
The copper wire plus copper tape screen is not merely an EMC decoration. Its section, continuity, bonding and fault duty must be closed at both ends according to the system earthing design.
3. Standard-basis review: preserve the source listing and verify the voltage-class basis
Important engineering observation: the supplied Nexans product page lists “Test: IEC 60840” for this 12/20 kV entry. The official IEC 60840:2020 publication describes its scope as extruded-insulation power cables above 30 kV (Um = 36 kV) up to 150 kV (Um = 170 kV). Because 12/20 kV is below that stated scope, the product-specific data sheet, DoP, test certificate and contract must clarify the exact normative and test basis. This article preserves the source’s IEC 60840 listing and does not silently replace or delete it.
What the source establishes
The product page identifies the item as N2XSH 1×70/25 mm², gives the construction, 12/20 kV rating, fire and environmental characteristics, and lists IEC 60840 as the test reference.
The product page identifies the item as N2XSH 1×70/25 mm², gives the construction, 12/20 kV rating, fire and environmental characteristics, and lists IEC 60840 as the test reference.
What the engineer must request
Current product data sheet; routine and type-test report; partial-discharge and withstand-test basis; conductor and screen resistance; applicable national / customer standard; accessory compatibility; current DoP revision.
Current product data sheet; routine and type-test report; partial-discharge and withstand-test basis; conductor and screen resistance; applicable national / customer standard; accessory compatibility; current DoP revision.
Why the distinction matters
A correct cable selection is not achieved by copying a standard number into a purchase order. Voltage class, test method, accessory system and approval document must be internally consistent.
A correct cable selection is not achieved by copying a standard number into a purchase order. Voltage class, test method, accessory system and approval document must be internally consistent.
Feichun release discipline
For an equivalent Feichun configuration, the product code, exact standard basis, declared fire performance and test report must be stated in the released technical file rather than inferred from a similar designation.
For an equivalent Feichun configuration, the product code, exact standard basis, declared fire performance and test report must be stated in the released technical file rather than inferred from a similar designation.
Standard and design control
Source listing: IEC 60840 → preserve as a reference-field value
Official IEC scope check: IEC 60840:2020 covers above 30 kV (Um = 36 kV) to 150 kV (Um = 170 kV)
Actual 12/20 kV release: verify the applicable standard, test report, DoP, accessories and customer specificationDo not convert a web-page “Test” field into a universal conformity claim without checking the current controlled documents.
4. Complete N2XSH 1×70/25 mm² reference specification matrix
Data provenance: the following matrix preserves the user-provided values and the corresponding Nexans product-page / DoP values. “Not declared in source” fields remain visibly blank rather than being filled from another N2XSH size or supplier.
| Specification field | Reference value | Engineering interpretation | Data status |
|---|---|---|---|
| Product designation | N2XSH 12/20 kV – B2ca | Single-core XLPE-insulated medium-voltage cable with a copper conductor and special fire performance. | Nexans product reference |
| Specific construction | N2XSH 1×70/25 mm² | 1 core; 70 mm² copper conductor; 25 mm² metallic screen section. | Nexans product reference |
| Nexans reference | 10590300 | Unique product reference in the supplied source. | Nexans product reference |
| Country reference | TR | Turkey country reference shown in the source page. | Nexans product reference |
| EAN 13 | 8680969250924 | Retail / logistics identifier shown in the source page. | Nexans product reference |
| Source record | Generated 8/4/26 — www.nexans.com.tr — Page 1 / 2 | Preserved exactly as supplied by the user; confirm the current revision before purchase. | Supplied source metadata |
| Test listed by source | IEC 60840 | The source product page lists IEC 60840; the standard-scope check is addressed in Section 3. | Source listing — verify contract basis |
| Conductor material | Copper | Low-resistance current path for MV distribution and network fault duty. | Nexans product reference |
| Conductor shape | Circular stranded (RM) | Round stranded geometry; the source identifies class 2 flexibility. | Nexans product reference |
| Conductor flexibility | Stranded class 2 | Improves handling and laying behaviour compared with a solid conductor of the same nominal cross-section. | Nexans product reference |
| Number of cores | 1 | Single-core cable; system formation, screen bonding and magnetic arrangement are installation decisions. | Nexans product reference |
| Conductor cross-section | 70 mm² | Phase conductor nominal cross-section. | Nexans product reference |
| Concentric screen section | 25 mm² | Copper wire plus copper tape screen section as listed for the reference construction. | Nexans product reference |
| Rated voltage U₀/U (Uₘ) | 12/20 kV (24 kV) | Medium-voltage distribution class; use the complete insulation coordination and accessory rating. | Nexans product reference |
| Operating temperature range | −20 … 90 °C | Source usage range; installation, ambient and accessory limits still govern the system. | Nexans product reference |
| Maximum conductor temperature in service | 90 °C | Continuous conductor operating limit stated by the source. | Nexans product reference |
| Short-circuit maximum conductor temperature | 250 °C | Source value; final I²t verification must include the exact clearing time and cable system. | Nexans product reference |
| Nominal outside diameter | 31.7 mm | Use for tray spacing, gland selection, bending-radius calculation and drum handling. | Nexans product reference |
| Approximate weight | 2010 kg/km | Approximately 2.010 kg/m; handling equipment and drum logistics must use the actual delivery record. | Nexans product reference |
| Maximum conductor DC resistance at 20 °C | 0.268 Ω/km | Use for voltage-drop and loss calculations with the applicable AC impedance model. | Nexans product reference |
| Permissible current, buried 20 °C, trefoil | 239 A | Source formation and ambient condition; not a universal ampacity value. | Nexans product reference |
| Permissible current, buried 20 °C, flat | — A | The source displays a dash; no value is invented. | Not declared in source |
| Permissible current, in air 30 °C, flat | 356 A | Source formation and ambient condition; support, spacing and solar exposure must be checked. | Nexans product reference |
| Permissible current, in air 30 °C, trefoil | — A | The source displays a dash; no value is invented. | Not declared in source |
| Permissible short-circuit current, conductor, 1 s | 10 kA | Source value for conductor short-circuit duty; verify the actual protection clearing time. | Nexans product reference |
| Permissible short-circuit current, screen, 1 s | — kA | The source displays a dash; screen fault duty must be verified from the released design. | Not declared in source |
| Bending factor when laying | 12 × D | With the published 31.7 mm outside diameter, the derived minimum laying radius is 380.4 mm. | Source + derived |
| Rodent protection | Yes | Environmental protection claim shown in the source characteristics. | Nexans product reference |
| UV resistance | Yes | Environmental protection claim shown in the source characteristics. | Nexans product reference |
| Flame retardant | IEC 60332-3 Cat. C | Bunched-cable vertical flame-spread test category; not the same designation as the CPR reaction-to-fire class. | Nexans product reference |
| Fire performance class | B2ca-s1,d0,a1 | Declared performance in the supplied product / DoP record. | Nexans product reference |
| Smoke density | IEC 61034-2 | Smoke-performance test reference shown on the product page. | Nexans product reference |
| Halogen-free | IEC 60754-1; IEC 60754-2 | LSZH / halogen-acid-gas related references shown on the product page. | Nexans product reference |
| Outer sheath | LSZH | Low-smoke, zero-halogen sheath; source page identifies the sheath colour as red. | Nexans product reference |
| Sheath colour | Red | Source characteristic; colour is not a substitute for cable marking or phase identification practice. | Nexans product reference |
| Declaration of Performance | No. 1001329-TRDE | DoP record associated with the supplied product reference. | Nexans DoP reference |
| DoP certification date | 5/27/25 | Date printed in the source DoP. | Nexans DoP reference |
| AVCP | System 1+ | Assessment and Verification of Constancy of Performance shown in the source DoP. | Nexans DoP reference |
| Notified body | 1008 | Notified body number shown in the source DoP. | Nexans DoP reference |
| Harmonized fire standard | EN 50575:2014+A1:2016 | The DoP states the B2ca-s1,d0,a1 reaction-to-fire performance according to this standard. | Nexans DoP reference |
| Packaging | Drum (1000 m) | Source family page lists 1000 m drum packaging for this construction. | Nexans product reference |
| Delivery reel size for 1000 m | — cm | The detailed page displays a dash; confirm drum dimensions and mass from the delivery document. | Not declared in source |
The source page displays “— A” for buried flat formation, “— A” for trefoil formation in air, “— kA” for screen short-circuit current and “— cm” for the 1000 m delivery reel size. These dashes are retained exactly as missing source values.
5. N2XSH 12/20 kV cross-section — layer-by-layer construction
The physical construction follows the source sequence: copper conductor; semi-conducting conductor screen; XLPE insulation; semi-conducting insulation screen; crape tape; concentric copper wire plus copper tape metallic screen; LSZH outer sheath. The cross-section is drawn as a concentric single-core cable because the product is not a three-core assembly.
Conductor: copper, class 2 RM
The 70 mm² conductor is circular stranded. Stranding improves laying and termination handling, while the final pulling and bending limits remain those of the complete cable.
The 70 mm² conductor is circular stranded. Stranding improves laying and termination handling, while the final pulling and bending limits remain those of the complete cable.
Semiconducting screens
The conductor and insulation screens support a controlled radial electric field and reduce local field concentration. Screen stripping and interface preparation are critical at MV terminations.
The conductor and insulation screens support a controlled radial electric field and reduce local field concentration. Screen stripping and interface preparation are critical at MV terminations.
XLPE insulation
XLPE provides the principal dielectric layer. The 90 °C continuous conductor temperature and 250 °C source short-circuit temperature must be coordinated with joints and terminations.
XLPE provides the principal dielectric layer. The 90 °C continuous conductor temperature and 250 °C source short-circuit temperature must be coordinated with joints and terminations.
Metallic screen
Copper wires plus copper tape form the 25 mm² reference screen. The screen’s continuity and earth-fault duty must be demonstrated, not assumed from the word “screen”.
Copper wires plus copper tape form the 25 mm² reference screen. The screen’s continuity and earth-fault duty must be demonstrated, not assumed from the word “screen”.
6. Electrical and thermal engineering
Current rating is formation-specific
The source declares 239 A for buried trefoil at 20 °C and 356 A for flat formation in air at 30 °C. These cannot be copied into a different formation, ambient, soil, grouping, spacing, depth, solar or enclosure condition.
The source declares 239 A for buried trefoil at 20 °C and 356 A for flat formation in air at 30 °C. These cannot be copied into a different formation, ambient, soil, grouping, spacing, depth, solar or enclosure condition.
Blank current fields stay blank
The source does not declare buried flat or in-air trefoil values for this item. The missing values must be calculated or obtained from the current manufacturer documentation.
The source does not declare buried flat or in-air trefoil values for this item. The missing values must be calculated or obtained from the current manufacturer documentation.
Conductor resistance
The source maximum DC resistance is 0.268 Ω/km at 20 °C. Voltage drop and losses require conductor temperature correction, AC impedance, formation, power factor, route length and load profile.
The source maximum DC resistance is 0.268 Ω/km at 20 °C. Voltage drop and losses require conductor temperature correction, AC impedance, formation, power factor, route length and load profile.
Short-circuit coordination
The source lists 10 kA permissible conductor short-circuit current for 1 s but no screen value. Verify the actual I²t, protection clearing time, screen bonding and accessory fault path.
The source lists 10 kA permissible conductor short-circuit current for 1 s but no screen value. Verify the actual I²t, protection clearing time, screen bonding and accessory fault path.
Derived engineering checks for the reference item
Minimum laying radius = 12 × D = 12 × 31.7 mm = 380.4 mm
Approximate mass per 100 m = 2010 kg/km × 0.1 = 201 kg/100 m
Approximate mass per metre = 2010 kg/km ÷ 1000 = 2.010 kg/m
DC voltage-drop screening relation: ΔU ≈ I × R × L
Thermal check: conductor temperature, screen losses, formation, ambient, soil, grouping and accessory temperature must be solved together
Short-circuit check: verify I²t, conductor 250 °C limit, screen duty and protective-device clearing timeThe derived radius and mass are arithmetic checks from published values. They do not replace the released Feichun drawing, drum record or project calculation.
| Derived check | Calculation | Result | Status |
|---|---|---|---|
| Minimum laying radius | 12 × 31.7 mm | 380.4 mm | Derived from source OD and 12×D |
| Approximate mass per 100 m | 2010 kg/km × 0.1 | 201 kg/100 m | Derived |
| Approximate mass per metre | 2010 kg/km ÷ 1000 | 2.010 kg/m | Derived |
| Screen-to-conductor area ratio | 25 ÷ 70 × 100% | 35.7% | Derived comparison only |
7. Fire performance: B2ca-s1,d0,a1 is not the same as IEC 60332-3 Cat. C
The supplied reference combines a high fire-performance declaration with an LSZH sheath. The DoP identifies B2ca-s1,d0,a1 as the declared reaction-to-fire performance under EN 50575:2014+A1:2016. The product page separately lists IEC 60332-3 Cat. C, IEC 61034-2 for smoke density and IEC 60754-1/-2 for halogen-free / halogen-acid-gas related performance.
B2ca
CPR reaction-to-fire classification. It belongs in the building and infrastructure fire-performance documentation and must be supported by the applicable DoP.
CPR reaction-to-fire classification. It belongs in the building and infrastructure fire-performance documentation and must be supported by the applicable DoP.
s1
Smoke-production class in the declared CPR performance. The source separately lists IEC 61034-2 as a smoke-density reference.
Smoke-production class in the declared CPR performance. The source separately lists IEC 61034-2 as a smoke-density reference.
d0
Flaming-droplet / particle performance class in the declared CPR notation. It must not be generalized to another cable construction.
Flaming-droplet / particle performance class in the declared CPR notation. It must not be generalized to another cable construction.
a1
Acidity / conductivity class in the declared CPR notation. The project fire strategy should use the current DoP and local requirements.
Acidity / conductivity class in the declared CPR notation. The project fire strategy should use the current DoP and local requirements.
IEC 60332-3 Cat. C
The IEC method evaluates vertical flame spread of bunched cables under defined test conditions. IEC describes Category C using a nominal 1.5 l/m non-metallic material volume and 20-minute flame application.
The IEC method evaluates vertical flame spread of bunched cables under defined test conditions. IEC describes Category C using a nominal 1.5 l/m non-metallic material volume and 20-minute flame application.
LSZH
Low-smoke, zero-halogen sheath supports smoke and corrosive-gas control, but LSZH alone does not automatically mean B2ca or any particular CPR class.
Low-smoke, zero-halogen sheath supports smoke and corrosive-gas control, but LSZH alone does not automatically mean B2ca or any particular CPR class.
Procurement rule: request the exact CPR DoP and fire-test documentation for the ordered Feichun construction. Do not place “B2ca” on a product page only because another N2XSH reference size has that classification.
8. Industrial application architecture
Substation and switchgear
Use the single-core cable with matched terminations, screen bonding, phase formation and mechanical cleats. Confirm clearances, induced current and accessory heat.
Use the single-core cable with matched terminations, screen bonding, phase formation and mechanical cleats. Confirm clearances, induced current and accessory heat.
Underground and ducts
The source lists underground and duct applications. Verify water ingress, drainage, pulling method, sidewall pressure, duct fill, thermal soil parameters and route maintenance.
The source lists underground and duct applications. Verify water ingress, drainage, pulling method, sidewall pressure, duct fill, thermal soil parameters and route maintenance.
Industrial plant
UV resistance, rodent protection and LSZH fire performance support demanding plant routes, but chemical compatibility, oil exposure and mechanical impact still require project review.
UV resistance, rodent protection and LSZH fire performance support demanding plant routes, but chemical compatibility, oil exposure and mechanical impact still require project review.
Sudden load-change networks
Low dielectric loss is useful in energy networks with changing load profiles. Cable sizing still requires maximum demand, starting / transient current, voltage drop and protection coordination.
Low dielectric loss is useful in energy networks with changing load profiles. Cable sizing still requires maximum demand, starting / transient current, voltage drop and protection coordination.
9. Handling, bending and termination
- Confirm the drum label, cable reference, length, end seals, source OD and delivered mass before unloading.
- Use the released 12 × D laying factor. For the 31.7 mm reference OD, keep the centreline bending radius at or above 380.4 mm during laying; use a larger radius where the accessory or method statement requires it.
- Align the drum and pay off in the marked direction. Prevent reverse winding, flange impact, uncontrolled twist and local sheath abrasion.
- Use a controlled pulling method and verify the cable pulling load, sidewall pressure, support spacing and entry geometry from the current technical file.
- Maintain the concentric screen, semi-conducting layers and XLPE insulation interface during preparation. Termination workmanship is part of dielectric reliability.
- Bond the metallic screen according to the system earthing design. Verify continuity at every intended section and record the termination torque.
- For parallel single-core systems, control phase formation, cleat forces, magnetic effects, spacing and screen currents. Do not treat the cable as a generic multicore feeder.
- Before energisation, complete conductor resistance, screen continuity, insulation / sheath tests, MV withstand / partial-discharge tests where specified, phase identification, accessory inspection and as-built records.
Movement boundary: N2XSH’s 12 × D value is a laying factor. It does not establish a continuous-flex, torsion, festoon, reel or drag-chain rating. Select a dedicated dynamic cable when the route moves repeatedly.
10. Selection comparison for engineers
| Requirement | N2XSH 1×70/25 mm² reference | What must be verified | Engineering decision |
|---|---|---|---|
| Fire-sensitive building / industrial route | Strong fit in the supplied reference: B2ca-s1,d0,a1, LSZH, IEC 60332-3 Cat. C | Current DoP, route configuration, fire barriers, local building rules and cable grouping | Suitable subject to current documentation |
| Fixed 12/20 kV distribution | 70 mm² Cu / XLPE / copper screen / LSZH construction | System voltage, accessories, ampacity, voltage drop, short circuit and screen bonding | Suitable subject to calculation |
| Underground / duct route | Listed in the source application | Water ingress, duct thermal resistance, pulling load, sidewall pressure, drainage and rodent exposure | Confirm route construction |
| Outdoor plant | UV resistance and LSZH sheath listed | Solar heating, chemical exposure, support, impact and termination weather sealing | Suitable subject to environment review |
| High-current trefoil formation | 239 A buried at 20 °C in trefoil is listed for this source item | Actual soil, depth, grouping, thermal resistivity, screen losses and protection settings | Use only for the stated basis |
| High-current flat formation in air | 356 A at 30 °C in flat formation is listed | Spacing, support, solar load, ventilation, ambient and parallel-circuit effects | Use only for the stated basis |
| Reeling / drag chain / festoon | Not established by the fixed-installation reference | Cycle count, torsion, travel speed, acceleration, rollers, winding geometry and dynamic bend radius | Select a dedicated dynamic cable |
11. Failure mode and effects analysis
Standard-basis mismatch: IEC 60840 is copied into a 12/20 kV purchase order without checking the current certificate and applicable voltage-class basis.
Fire-class substitution: B2ca is assumed because the cable is LSZH, without checking the exact DoP and ordered construction.
Wrong ampacity: 239 A or 356 A is copied into a different formation, ambient, soil, grouping or installation method.
Screen overload: screen short-circuit current is left unresolved because the source shows “— kA”.
Radius violation: a gland, trench corner or support bends the cable below 380.4 mm for the published 31.7 mm OD.
Termination damage: semi-conducting screen or XLPE interface is prepared poorly, increasing partial-discharge risk.
Water ingress: the source application says underground / duct, but the project does not close drainage, water blocking, end sealing or accessory protection.
Dynamic misuse: a fixed N2XSH cable is placed in a reel, festoon or energy chain because the sheath appears robust.
12. Feichun Cable certification and project assurance
Engineered for maximum safety in demanding environments, Feichun Cable’s 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.
For a Feichun N2XSH release
Confirm the exact product code, 12/20 kV rating, 70 mm² conductor, 25 mm² screen, conductor resistance, OD, weight, formation ampacity, short-circuit duty, fire class, LSZH compounds, UV / rodent claims and accessory compatibility.
Confirm the exact product code, 12/20 kV rating, 70 mm² conductor, 25 mm² screen, conductor resistance, OD, weight, formation ampacity, short-circuit duty, fire class, LSZH compounds, UV / rodent claims and accessory compatibility.
Certification is configuration-specific
Company-level certification scope does not make every N2XSH size automatically B2ca, IEC 60840, IECEx, ATEX, EAC or fire-certified. The exact product, test report, DoP and market documentation must match.
Company-level certification scope does not make every N2XSH size automatically B2ca, IEC 60840, IECEx, ATEX, EAC or fire-certified. The exact product, test report, DoP and market documentation must match.
Fire documentation
For the B2ca configuration, the release should identify the CPR declaration, AVCP route, notified body where applicable, harmonized standard, fire-performance class and valid revision date.
For the B2ca configuration, the release should identify the CPR declaration, AVCP route, notified body where applicable, harmonized standard, fire-performance class and valid revision date.
Feichun engineering value
Feichun can use the N2XSH architecture as a controlled fire-performance MV platform while adapting conductor, screen section, sheath, dimensions and project testing to the actual installation rather than copying a reference label.
Feichun can use the N2XSH architecture as a controlled fire-performance MV platform while adapting conductor, screen section, sheath, dimensions and project testing to the actual installation rather than copying a reference label.
Release condition: this article does not invent a Feichun certificate number, notified body, current ampacity, screen fault current, drum dimension or test report. Values not stated for the Feichun configuration must be confirmed in the current controlled technical file.
13. Source map and data-status audit
| Source | Use in this article | Status and limitation |
|---|---|---|
| Nexans Türkiye N2XSH 1×70/25 mm² product page | Product identity, reference number, EAN, construction, dimensional data, electrical data, usage characteristics, fire and environmental fields. | Manufacturer product reference; values are not silently converted into a Feichun catalogue release. |
| Nexans Türkiye N2XSH 12/20 kV – B2ca family page | Family title, 1×70/25 mm² product listing and 1000 m drum packaging context. | Manufacturer family page; confirm current availability and revision at quotation stage. |
| Nexans Declaration of Performance 1001329-TRDE | B2ca-s1,d0,a1 declared reaction-to-fire performance, EN 50575:2014+A1:2016, AVCP System 1+, notified body 1008 and date. | Product-specific DoP; the exact ordered Feichun configuration needs its own current documentation. |
| IEC 60840:2020 official publication record | Standard-scope review and the warning that the official page states above 30 kV (Um = 36 kV) to 150 kV (Um = 170 kV). | The source product page lists IEC 60840 for a 12/20 kV item; clarify the controlled test basis before issuing a conformity claim. |
| IEC 60332-3-24:2018 official publication record | Category C bunched-cable flame-spread test context, including the defined test-ladder conditions. | Test method reference; it is not itself a CPR B2ca declaration. |
This article is for preliminary engineering, technical search and comparison. The final Feichun N2XSH 12/20 kV – B2ca release must be checked against the current product data sheet, test report, DoP, cable accessories, installation formation, project fire strategy and local authority requirements.
