SWA Armoured Cable
ANPU's steel wire armoured (SWA) cable — designation N2XRY (international) or YJV32 (China GB) — is a 0.6/1 kV power cable to IEC 60502-1. Construction: copper conductor, XLPE insulation, PPS filler, PVC inner lining, single-layer round galvanised steel wires, PVC outer sheath.
The round-wire armour delivers radial crush protection and the axial tensile strength to bear the cable's own weight in vertical drops — making it the standard pick for tall buildings, mines, mountainous terrain and any route with large laying drop. Flame retardancy is verified to IEC 60332-1-2:2015; the cable also resists rodent biting.
Six Engineered Layers
Each layer is built to the AP7301 factory specification — conductor class, insulation thickness, armour wire diameter and sheath gauge are all defined.
Annealed Copper to IEC 60228:2004
Class 1 solid or Class 2 stranded copper. Single wire diameter Φ1.13 mm – Φ2.94 mm; 1 – 61 wires per conductor depending on cross-section.
XLPE — Cross-Linked Polyethylene
Wall thickness 0.7 – 1.4 mm scaled to conductor size. Supports 90 °C continuous and 250 °C short-circuit conductor temperatures.
PPS Filler
Polypropylene strand filler in graded specifications: 60# / 90# / 120# / 160# / 200# / 240# / 270#. Right-direction laying with controlled pitch-to-diameter ratio.
Extruded PVC / PPD
0.8 – 1.4 mm bedding layer applied over the assembled core. Provides a smooth, uniform substrate for the steel wire armour.
Galvanised Round Steel Wires — G1A
Single helical layer. Wire diameters Φ0.8 / 1.25 / 1.6 / 2.0 / 2.5 mm depending on cable size. Radial protection plus axial tensile capacity.
PVC, Black Standard
Wall thickness 1.2 – 2.3 mm. Continuous markers: Wuhan Anpu Cable Group Co., Ltd. / YJV32 / 0.6/1 kV / length.
Technical Datasheet
Verified parameters to IEC 60502-1, per ANPU factory specification AP7301. For variants to other national standards, see customization below.
Rated Current-Carrying Capacity
Cable laid in free air, ambient temperature 30 °C, per AP7301 specification.
| Nominal Section (mm²) | 1-Core (A) | 2-Core (A) | 3 to 5-Core (A) |
|---|---|---|---|
| 1.5 | 21 | 19 | 17 |
| 2.5 | 29 | 26 | 24 |
| 4 | 41 | 35 | 33 |
| 6 | 53 | 47 | 43 |
| 10 | 73 | 66 | 60 |
| 16 | 94 | 84 | 77 |
| 25 | 122 | 113 | 102 |
| 35 | 153 | 138 | 124 |
| 50 | 184 | 169 | 157 |
| 70 | 231 | 212 | 199 |
| 95 | 290 | 264 | 245 |
| 120 | 337 | 307 | 287 |
| 150 | 388 | 350 | 323 |
| 185 | 447 | 402 | 374 |
| 240 | 533 | 490 | 444 |
| 300 | 620 | 568 | 514 |
| 400 | 722 | 662 | 592 |
Direct-burial and grouped-laying derating differ — request the certified datasheet for project-specific ratings.
Dimensions & Weights — 4-Core YJV32 0.6/1 kV
Approximate outer diameter and cable weight per AP7301 parameter table. Full 1C / 2C / 3C tables on request.
| Model Specification | Approx. Outer Diameter (mm) | Approx. Cable Weight (kg/km) |
|---|---|---|
| YJV32 4 × 1.5 | 14.0 | 352 |
| YJV32 4 × 2.5 | 14.9 | 413 |
| YJV32 4 × 4 | 17.0 | 612 |
| YJV32 4 × 6 | 18.1 | 730 |
| YJV32 4 × 10 | 20.5 | 962 |
| YJV32 4 × 16 | 23.8 | 1,409 |
| YJV32 4 × 25 | 27.6 | 1,932 |
| YJV32 4 × 35 | 30.7 | 2,435 |
| YJV32 4 × 50 | 35.3 | 3,319 |
| YJV32 4 × 70 | 40.9 | 4,400 |
| YJV32 4 × 95 | 45.2 | 5,615 |
Equivalent Standards — Cross-Reference
All variants share the XLPE / SWA / PVC construction at 0.6/1 kV. Each national standard differs in wire diameter, sheath tolerances and test voltages — every cross-standard order is a customised build.
| Standard System | Designation | Standard No. | Build Type at ANPU |
|---|---|---|---|
| International (IEC) | — | IEC 60502-1 | Production Basis |
| China (GB) | YJV32 | GB/T 12706.2-2008 | Standard Stock |
| Germany / Europe (VDE) | N2XRY | DIN VDE 0276-603 | Built-to-Spec |
| United Kingdom (BS) | SWA-XLPE Armoured | BS 5467 | Built-to-Spec |
| France (NFC) | U-1000 R2V FR | NF C 32-321 | Built-to-Spec |
| Australia / NZ | — | AS/NZS 5000.1 | Built-to-Spec |
IEC as Standard. Every Other Standard as a Custom Build.
IEC 60502-1 is the default production basis. For DIN VDE, BS, NF C or AS/NZS variants, ANPU adjusts conductor class, wire diameter, sheath thickness, marking and test sequence to match.
How Custom Production Works
RFQ + Target Standard
Submit standard, cross-section, length and marking. Reply within 24 hours.
Engineering Review
R&D confirms build spec and standard-specific deltas, issues technical proposal.
Sample + Test Report
Trial production with full electrical, mechanical and armour-layer testing in the in-house lab.
Bulk Manufacturing
Mass production with batch QC. Packaging in steel cages, coils or wooden drums.
Where SWA Cable Is Deployed
Per AP7301 product specification: power transmission, distribution and transformation systems where laying drop is large — plus general-purpose direct-burial distribution.
Tall Buildings & Risers
Service risers in high-rise commercial and residential developments. Wire armour bears the cable's own weight in vertical drops.
Mines & Hoistways
Mine shafts and underground galleries. Axial tensile strength and rodent resistance suit harsh, abrasive environments.
Mountainous Terrain
Power distribution across mountainous or uneven terrain with large vertical drops between laying points.
Direct Burial Distribution
Underground LV distribution where soil, rock or backfill demands full mechanical protection without conduit.
N2XRY / YJV32 SWA Cables for Ethiopia Power Plant
Designed to withstand harsh operating environments, this batch of SWA cables has successfully passed rigorous quality inspections and is securely packed on standard export wooden drums. See more projects.
FIG. 01
On the Production Line
Finished N2XRY / YJV32 cable on heavy-duty wooden drums, queued directly off the XLPE insulation and steel-wire armouring line.
FIG. 02
Drum Bay & Labelling
Each drum tagged with cable spec, drum length, batch number and customer marking — staged inside the factory awaiting final FQC release.
FIG. 03
Ready for Sea Freight
Lagged, banded and stencilled — N2XRY drums ready to leave the Wuhan factory for overseas EPC and distributor accounts.
28+ Years. In-House Lab. Full QC on Every Drum.
ANPU Cable Group, founded in Wuhan in 1998, runs full electrical, insulation, armour-layer and flame-retardancy testing on every batch before release.
Factory-Level Quality Management
CE (EU export), CCC (China Compulsory Certification), UL, RoHS Compliant and Final Quality Control (FQC) sign-off on every drum. ISO 9001:2015, ISO 14001 and ISO 45001 management systems, plus Hubei Provincial Industrial Production Licence — product-specific test reports available on request via the Service Center.
Engineer & Procurement FAQ
The questions most often asked by EPC contractors, distributors and project developers specifying SWA armoured cable.
What is a SWA cable, and how does it differ from STA?
SWA uses a single helical layer of round galvanised steel wires — radial crush protection plus axial tensile strength, allowing the cable to support its own weight in vertical drops. STA uses two flat tapes — strong crush resistance but no significant tensile capacity. For horizontal direct burial, YJV22 (STA) is more economical; specify YJV32 (SWA) wherever tensile load is present.
Is N2XRY the same as YJV32?
Both share the Cu / XLPE / PVC bedding / SWA / PVC sheath construction at 0.6/1 kV and are functionally interchangeable in most applications. They are not bit-for-bit identical — GB and VDE differ in wire diameters, sheath tolerances and test voltages. ANPU manufactures each order to the specific standard nominated by the buyer; IEC 60502-1 is the default.
What does "32" in YJV32 mean?
In the China GB designation, two digits after the insulation / sheath letters indicate armour and sheath type. The first "3" = round steel wire armour (SWA); the second "2" = PVC outer sheath. YJV22 has flat steel tape armour (STA) — equivalent to N2XBY.
What's the minimum bending radius?
≥ 12 × outer diameter per AP7301 specification. Tighter bends risk damaging the steel wire armour and the underlying insulation. Use the cable's listed outer diameter (see the dimensions table above) to calculate the field bending radius.
What's the operating temperature range?
Long-term cable operating temperature is −20 °C to +90 °C. Maximum short-circuit conductor temperature is 250 °C for ≤ 5 seconds. The cable also passes flame retardancy testing to IEC 60332-1-2:2015.
Can SWA cable be directly buried underground?
Yes. SWA cable is rated for direct burial per IEC 60502-1. The steel wire armour provides full mechanical protection without conduit, and the galvanised wire layer deters rodents — important for routes in tropical, agricultural and mining environments.
Can ANPU build to BS 5467, DIN VDE or other non-IEC standards?
Yes. IEC 60502-1 is the default production basis; every standard in the cross-reference table (DIN VDE 0276-603, BS 5467, NF C 32-321, AS/NZS 5000.1, GB/T 12706) is offered as a built-to-spec custom order. Specify the standard on your PO and ANPU manufactures, tests and certifies to that exact standard.
What test reports can ANPU provide?
A factory test certificate covering conductor DC resistance, AC voltage test (3.5 kV / 1 min), insulation resistance and dimensional inspection is provided with every shipment. Pre-shipment inspection by SGS / BV / TÜV / Intertek is supported. Type test reports to IEC 60502-1 are available on request.
What's the lead time?
Typical lead time is 7 – 15 working days depending on cross-section, core configuration and order quantity. Urgent orders evaluated case by case — message the team on WhatsApp to confirm availability.
Tell ANPU Your Standard. The Cable Gets Built to Match.
Share target standard, cross-section, core configuration, length and any OEM marking. Sales replies within 24 hours.
