1x16mm2 Single Core Electrical Cable Oxygen Free Self Extinguishing 1 Core 16mm Cable
Product Summary
Product Details
1x16mm2 single core electrical cable
,single core electrical cable Oxygen Free
,Self extinguishing 1 core 16mm cable
Product Description
ZR-YJV 1*16mm² Flame Retardant Single Core Power Cable, 0.6/1kV, Oxygen-Free Copper, XLPE Insulation, PVC Sheath, Self-extinguishing, for Indoor Building Power Distribution.
Code Mean:
ZR-Flame Retardant
YJ-XLPE Insulation
V-PVC Outer Sheathed
Flame-retardant copper-conductor, XLPE-insulated, PVC-sheathed power cable · Construction: CU / XLPE / PVC · Standards: GB/T 12706.1, IEC 60502-1; conductor GB/T 3956; flame retardance GB/T 19666 & GB/T 18380.
1. Product Structure (from conductor to outer sheath)
| Layer | Material | Nominal Thickness | Resulting Diameter |
|---|---|---|---|
| 1. Conductor | Plain annealed copper (Cu), Class 2 stranded — typical construction 7 wires × 1.70 mm (7/1.70), nominal section 16 mm² | — | ≈ 5.0 mm |
| 2. Insulation | Cross-linked polyethylene (XLPE) — thermally cross-linked, natural/transparent colour | 0.7 mm | ≈ 6.4 mm |
| 3. Outer sheath | Flame-retardant PVC (ST2 type), black (or as ordered) | 1.4 mm | ≈ 9.3 mm overall |
The cable is a single concentric construction: the stranded copper conductor carries the current; the XLPE insulation provides the dielectric barrier (high insulation resistance, low dielectric loss, 90 °C continuous rating); the flame-retardant PVC sheath gives mechanical, moisture and environmental protection and provides the ZR flame-retardant property.
2. Product Performance
- Electrical — Max. DC conductor resistance at 20 °C ≤ 1.15 Ω/km (GB/T 3956, Class 2); power-frequency withstand test 3.5 kV AC / 5 min, no breakdown; finished-cable insulation resistance at 20 °C typically ≥ 36.7 MΩ·km (manufacturer reference; XLPE volume resistivity ≥ 1×10¹² Ω·cm)
- Thermal — Max. continuous conductor temperature 90 °C; max. short-circuit conductor temperature (≤ 5 s) 250 °C; ambient service range −20 to +45 °C; minimum installation temperature 0 °C (preheat below 0 °C) .
- Flame retardance — "ZR" per GB/T 19666; when no A/B class is stated the default is class C (ZC): single-cable vertical flame-spread test per GB/T 18380.12; bunched test per GB/T 18380.35 (non-metallic volume ≥ 1.5 L/m, 20 min flame, char extent ≤ 2.5 m)
- Mechanical / dimensional — Approx. overall diameter 9.0–9.3 mm; approx. weight ≈ 201 kg/km (manufacturer range 195–220 kg/km); minimum bending radius (single-core) 20 × OD
- Ampacity (reference) — ≈ 115 A in air at 30 °C (single core) and ≈ 100–115 A direct-buried; final ratings need derating factors for ambient, grouping and laying method (GB/T 16895 / IEC 60364)

3. Product Parameters
| ZR-YJV 1×16 mm² Flame-Retardant Copper-Conductor XLPE-Insulated PVC-Sheathed Power Cable — Product Parameters (0.6/1 kV) | |||||
| Construction: CU / XLPE / PVC • Standards: GB/T 12706.1, IEC 60502-1 (cable), GB/T 3956 (conductor), GB/T 19666 & GB/T 18380 (flame retardance) • Nominal values for reference — confirm against factory test certificate | |||||
| No. | Category | Parameter | Value | Unit | Notes / Standard Reference |
| A. Product Identification | |||||
| 1 | Identification | Product name | Flame-retardant copper-conductor XLPE-insulated PVC-sheathed power cable | — | Designation ZR-YJV; "ZR" = flame-retardant |
| 2 | Identification | Model designation | ZR-YJV 1×16 | — | Cu / XLPE / PVC |
| 3 | Identification | Design standards | GB/T 12706.1; IEC 60502-1 | — | Conductor: GB/T 3956 / IEC 60228; flame retardance: GB/T 19666, GB/T 18380; safety: CCC / production licence |
| 4 | Identification | Rated voltage U0/U | 0.6/1 | kV | U0 = voltage conductor-to-earth; U = conductor-to-conductor; max system voltage Um = 1.2 kV |
| 5 | Identification | Rated frequency | 50 | Hz | AC power distribution |
| 6 | Identification | Number of cores | 1 | — | Single-core cable |
| 7 | Identification | Nominal cross-sectional area | 16 | mm² | Nominal conductor cross-section per GB/T 3956 |
| B. Cable Construction (from conductor to outer sheath) | |||||
| 8 | Conductor | Material | Plain annealed copper (Cu) | — | High-conductivity electrolytic / oxygen-free copper |
| 9 | Conductor | Conductor class | Class 1 or Class 2 (typical: Class 2, stranded) | — | GB/T 3956 / IEC 60228; Class 2 for flexible stranding and bending |
| 10 | Conductor | Typical stranding construction | 7 wires × 1.70 mm (7/1.70) | — | Class 2 round stranded; nominal section ≈ 16 mm² |
| 11 | Conductor | Conductor diameter | ≈ 5.0 | mm | 5.0–5.1 mm per manufacturer tables (Qifan 5.0 mm; Hydget 5.1 mm) |
| 12 | Conductor | Max. DC resistance of conductor at 20 °C | 1.15 | Ω/km | GB/T 3956, Class 2 copper; acceptance criterion for 16 mm² |
| 13 | Insulation | Material | Cross-linked polyethylene (XLPE) | — | Thermally cross-linked; natural/transparent colour |
| 14 | Insulation | Nominal insulation thickness | 0.7 | mm | GB/T 12706.1 / IEC 60502-1 (Table for 0.6/1 kV, 16 mm²) |
| 15 | Insulation | Diameter over insulation | ≈ 6.4 | mm | ≈ 5.0 + 2 × 0.7 (calculated) |
| 16 | Sheath | Material | Flame-retardant polyvinyl chloride (PVC, ST2 type) | — | Flame-retardant PVC compound; colour: black (or as ordered) |
| 17 | Sheath | Nominal sheath thickness | 1.4 | mm | GB/T 12706.1 / IEC 60502-1 |
| 18 | Dimensions | Approx. overall diameter | 9.0–9.3 | mm | Qifan 9.3 mm; Weiguang 9.0 mm; max. ≤ 12.0 mm per some manufacturers |
| 19 | Dimensions | Approx. cable weight | ≈ 201 | kg/km | Range 195–220 kg/km across manufacturers (Qifan 201; Weiguang 195; Gongyi Shengzhou 220) |
| C. Electrical Performance | |||||
| 20 | Electrical | Max. DC conductor resistance at 20 °C | ≤ 1.15 | Ω/km | GB/T 3956; routine measurement |
| 21 | Electrical | Power-frequency withstand voltage (routine test) | 3.5 kV / 5 min, no breakdown | — | AC 50 Hz; per GB/T 12706.1 / IEC 60502-1 |
| 22 | Electrical | Insulation resistance (finished cable, 20 °C) | ≥ 36.7 | MΩ·km | Typical finished-cable requirement quoted for 0.6/1 kV XLPE cables; varies with geometry and manufacturer test method |
| 23 | Electrical | XLPE volume resistivity at 20 °C | ≥ 1 × 10¹² | Ω·cm | Material-level requirement (manufacturer reference) |
| 24 | Electrical | Capacitance (single-core, approx.) | ≤ 0.45 | μF/km | Manufacturer reference value |
| 25 | Electrical | Reference ampacity — in air, 30 °C, single core | ≈ 115 | A | Reference value (Guangheng); depends on laying, grouping, ambient — apply correction factors per GB/T 16895 / IEC 60364 |
| 26 | Electrical | Reference ampacity — direct burial, 25 °C | ≈ 100–115 | A | Reference value; depends on soil thermal resistivity and depth |
| D. Thermal Performance | |||||
| 27 | Thermal | Max. continuous conductor temperature | 90 | °C | XLPE insulation temperature class |
| 28 | Thermal | Max. conductor temperature under short-circuit (≤ 5 s) | 250 | °C | Per GB/T 12706.1 / IEC 60502-1 |
| 29 | Thermal | Ambient service temperature range | -20 to +45 | °C | Per Qifan datasheet; check project specification |
| 30 | Thermal | Min. installation (laying) temperature | 0 | °C | Pre-heat the cable if ambient is below 0 °C |
| E. Flame Retardance (ZR) | |||||
| 31 | Flame retardance | Flame-retardant class | ZC (class C) by default for "ZR" | — | GB/T 19666; ZA / ZB available on request; halogen-containing PVC (not LSZH) |
| 32 | Flame retardance | Single-cable vertical flame-spread test | Pass | — | GB/T 18380.12; no flame spread beyond specified point |
| 33 | Flame retardance | Bunched flame-spread test (class C) | Char extent ≤ 2.5 m above burner bottom edge | — | GB/T 18380.35: non-metallic volume ≥ 1.5 L/m; flame application 20 min |
| 34 | Flame retardance | Halogen content | Halogen-containing (PVC) | — | For low-smoke, zero-halogen requirement select WDZ-YJY (LSZH) type |
| F. Installation | |||||
| 35 | Installation | Min. bending radius — single-core cable | 20 × OD | — | Qifan & Huaneng datasheets; some manufacturers specify 15 × OD; OD = actual cable diameter |
| 36 | Installation | Laying methods | Conduit, tray, cable trench, tunnel, duct, supported/suspended aerial | — | Also direct burial with mechanical protection where permitted |
| 37 | Installation | Site withstand test after installation | DC 4U0 = 2.4 kV, 15 min (recommended) | — | Per utility procurement standard Q/GDW 13244.1-2018; practice may vary by project |
| G. Packing & Delivery | |||||
| 38 | Packing | Standard delivery length | 100 m per coil/drum (or as ordered) | — | Typical industry practice; custom lengths available |
| 39 | Packing | Cable marking | Model, rated voltage, manufacturer, year of manufacture, sequential length marks | — | Per GB/T 6995 / project specification |
| 40 | Packing | Packing form | Wooden drum / coil / export packing | — | As per customer requirement |

4.Cable Cross-Section Diagram

| ZR-YJV 1×16 mm² — Cable Cross-Section Structure (Schematic) | |||||
| Layers from conductor to outer sheath · nominal values per GB/T 12706.1 / IEC 60502-1 · not to exact scale | |||||
| No. | Layer | Material / Construction | Nominal Thickness (mm) | Diameter (mm) | Function / Remarks |
| 1 | Conductor (Cu) | Annealed copper, Class 2 stranded — 7 × 1.70 mm (7/1.70), nominal 16 mm² | — | ≈ 5.0 (Ø) | Current-carrying element; max DC resistance ≤ 1.15 Ω/km @ 20 °C |
| 2 | Insulation (XLPE) | Cross-linked polyethylene | 0.7 | ≈ 6.4 (Ø over insulation) | Dielectric barrier; rated 90 °C continuous; withstands 3.5 kV / 5 min |
| 3 | Outer sheath (PVC) | Flame-retardant PVC, ST2 type, black | 1.4 | ≈ 9.3 (Ø overall) | Mechanical & moisture protection; flame retardance ZC (ZR) per GB/T 19666 |
| Key Dimensions & Properties | |||||
| Overall diameter | 9.0–9.3 | mm | Max ≤ 12.0 mm per some manufacturers | ||
| Approx. cable weight | ≈ 201 | kg/km | Range 195–220 kg/km across manufacturers | ||
| Rated voltage | 0.6/1 | kV | AC 50 Hz; max system voltage Um = 1.2 kV | ||
| Max conductor temperature | 90 / 250 | °C | Continuous / short-circuit (≤ 5 s) | ||
| Min. bending radius (single-core) | 20 × OD | — | OD = actual cable diameter | ||
| Flame-retardant class | ZC (ZR) | — | GB/T 19666 | ||
5.Test Parameters
| ZR-YJV 1×16 mm² — Test / Verification Parameters (per GB/T 12706.1 & IEC 60502-1) | ||||
| Test Stage | Test Item | Method / Standard | Requirement / Acceptance Criterion | Notes |
| Routine test | Conductor DC resistance measurement | GB/T 3956 (IEC 60228) | ≤ 1.15 Ω/km at 20 °C | Measured on every production length |
| Routine test | Power-frequency withstand voltage | GB/T 12706.1 / IEC 60502-1 | 3.5 kV AC, 5 min, no breakdown | Applied between conductor and water/earth; 50 Hz |
| Routine test | Construction check — insulation & sheath thickness, outer diameter | GB/T 2951 | Within GB/T 12706.1 tolerances | Insulation ≥ 0.7 mm nominal; sheath ≥ 1.4 mm nominal |
| Sample test | Hot set (thermal elongation) test — XLPE insulation | GB/T 12706.1 §16.3.13 / GB/T 2951.11 | 200 ± 3 °C, 15 min, stress 0.2 MPa: elongation under load ≤ 175 %; permanent elongation after cooling ≤ 15 % | Verifies degree of cross-linking |
| Sample test | Conductor construction & diameter check | GB/T 3956 | Class 2; 7 × 1.70 mm; Ø ≈ 5.0 mm | Sampled per batch |
| Type test | Single-cable vertical flame-spread test (flame retardance) | GB/T 18380.12 | No flame spread; charring does not reach top reference point | ZR / ZC flame-retardant property |
| Type test | Bunched flame-spread test, class C | GB/T 18380.35 | Char extent ≤ 2.5 m above burner bottom edge; flame application 20 min; non-metallic volume ≥ 1.5 L/m | Class ZC per GB/T 19666 |
| Type test | Bending test (mechanical) | GB/T 12706.1 | Bend around specified mandrel without insulation/sheath damage | Mandrel diameter related to cable OD |
| Post-installation | DC withstand test after installation | Q/GDW 13244.1-2018 (recommended practice) | 4U0 = 2.4 kV DC, 15 min, no breakdown | For new installations; verify project specification |
| Optional | Insulation resistance measurement at 20 °C | Manufacturer test method | ≥ 36.7 MΩ·km (typical finished-cable value) | Not a routine item in GB/T 12706.1; confirm with factory |
| Optional | XLPE volume resistivity at 20 °C | Manufacturer / material test | ≥ 1 × 10¹² Ω·cm | Material-level reference |
6. Usage Precautions
- Temperature limits — Never exceed 90 °C continuous or 250 °C short-circuit (≤ 5 s); derate ampacity for ambient temperature, bunching and installation method.
- Installation — Lay only at ambient ≥ 0 °C (preheat the cable if colder); keep the minimum bending radius of 20 × OD (single-core); avoid kinking, sharp edges and over-bending.
- Mechanical protection — Control pulling tension and side-wall pressure; for direct burial where mechanical damage, rodents or stones are a risk, use an armored type (e.g., YJV22) or protective ducting.
- Environment — Protect the PVC sheath from prolonged direct sunlight (UV degradation), strong solvents, oils and high ambient heat; for long-term outdoor exposure provide shading or use a UV-stable specification.
- Fire safety — ZR is a halogen-containing flame-retardant cable; smoke and corrosive gases are produced when burning. Where low smoke and zero halogen are mandatory (tunnels, occupied enclosed spaces), select WDZ-YJY (LSZH) instead.
- Termination & moisture — Fit terminations per manufacturer instructions and seal cable ends to prevent moisture ingress; after installation carry out the DC withstand test specified by the project (typically 4U0 / 15 min).
- Storage — Store drums upright in dry, ventilated areas, off the ground, protected from sunlight and heat sources.
7. Application Scope
- AC 50 Hz power distribution at rated voltage 0.6/1 kV (max system voltage Um = 1.2 kV).
- Buildings and residential/commercial complexes, industrial plants and workshops, municipal and infrastructure projects, power distribution rooms and substation LV circuits.
- Installation in conduits, cable trays, ducts, cable trenches, tunnels and supported/suspended aerial runs.
- Applications with flame-retardance requirements per local fire codes (indoor and semi-outdoor power circuits).
Note: figures marked "typical / approx." are compiled from manufacturer datasheets and standards cited above; the binding values are those of the factory test certificate and the project specification.

8. Package and Delivery

9.Factory overview
