ZR-YJV 1*185mm² Flame Retardant Copper Cable,0.6/1kV XLPE Insulation PVC Sheath for Building Wiring
Product Summary
Product Details
Product Description
ZR-YJV 1*185mm² Flame Retardant Copper Cable,0.6/1kV XLPE Insulation PVC Sheath for Building Wiring
Code Mean:ZR-Flame Retardant,YJ-XLPE Insulation,V-PVC Outer Sheathed.
ZR-YJV 1×185 mm² — Specification Sheet
1. General Description. The ZR-YJV 1×185 is a single-core, flame-retardant cable of CU/XLPE/PVC construction rated 0.6/1 kV (Um = 1.2 kV), 50 Hz, intended for heavy low-voltage distribution. It conforms to GB/T 12706.1 / IEC 60502-1; core sizing to GB/T 3956 / IEC 60228; flame behaviour to GB/T 19666 / GB/T 18380 (default class ZC).
2. Layer-by-Layer Build. From the centre outward:
| Layer | Material & arrangement | Wall | Diameter |
|---|---|---|---|
| Core | Annealed copper, Class 2, 37 × 2.52 mm (37/2.52, 1+6+12+18), 185 mm² | — | ≈ 15.3 mm (compacted; up to ≈ 17 mm round-lay) |
| Dielectric | Cross-linked polyethylene | 1.6 mm | ≈ 18.5 mm over insulation |
| Jacket | Flame-retarded PVC, ST2, black | 2.0 mm | ≈ 22.5 mm overall |
Weight ≈ 1944 kg/km (the copper alone ≈ 1645 kg/km); OD 22.5–23 mm (some makers quote up to 25 mm with tolerance).
3. Electrical Ratings. DC resistance ≤ 0.0991 Ω/km @ 20 °C; routine AC withstand 3.5 kV / 5 min; XLPE volume resistivity ≥ 1×10¹² Ω·cm; insulation resistance typically ≥ 36.7 MΩ·km; capacitance ≤ 0.45 μF/km. Reference ampacity ≈ 530 A in air (30 °C, single core) and ≈ 480 A buried; final ratings follow GB/T 16895 / IEC 60364 derating.
|
Parameter |
Value |
Note |
|---|---|---|
|
Rated voltage U₀/U |
0.6 / 1 kV |
Uₘ = 1.2 kV |
|
Test voltage AC (5 min) |
3.5 kV |
Routine |
|
Type-test voltage |
4.0 kV |
IEC 60502 |
|
DC resistance @20 °C (Class 2 Cu) |
≤ 0.0991 Ω/km |
GB/T 3956 / IEC 60228 max |
|
AC resistance @90 °C (est.) |
≈ 0.129 Ω/km |
copper temp. coefficient |
|
Current rating in air (30–40 °C, single circuit, single-core) |
≈ 505 – 520 A |
PVC sheath; design ≈ 505 A |
|
Direct buried (20 °C, soil 1.0 K·m/W, 0.7 m) |
≈ 460 – 475 A |
design ≈ 460 A |
|
Short-circuit current (1 s adiabatic, Cu, 250 °C) |
≈ 21.39 kA |
reference |
|
Frequency |
50/60 Hz AC (DC usable) |
— |
4. Thermal & Mechanical Limits. Continuous conductor 90 °C; short-circuit 250 °C (≤ 5 s); ambient −20 to +45 °C; laying ≥ 0 °C; minimum bend radius 20 × OD for single-core work.
| ZR-YJV 1×185 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 (halogen-containing) |
| 2 | Identification | Model designation | ZR-YJV 1×185 | — | 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 | 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 | 185 | 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 |
| 10 | Conductor | Typical stranding construction | 37 wires × 2.52 mm (37/2.52, lay-up 1+6+12+18) | — | Class 2 round stranded; nominal section ≈ 185 mm² |
| 11 | Conductor | Conductor diameter | ≈ 15.3 | mm | ≈ 15.3 mm compact (15.3–17.0 mm across stranding practice) |
| 12 | Conductor | Max. DC resistance of conductor at 20 °C | 0.0991 | Ω/km | GB/T 3956, Class 2 copper; acceptance criterion for 185 mm² |
| 13 | Insulation | Material | Cross-linked polyethylene (XLPE) | — | Thermally cross-linked; natural/transparent colour |
| 14 | Insulation | Nominal insulation thickness | 1.6 | mm | GB/T 12706.1 / IEC 60502-1 (0.6/1 kV, 185 mm²) |
| 15 | Insulation | Diameter over insulation | ≈ 18.5 | mm | ≈ 15.3 + 2 × 1.6 (calculated, compact conductor) |
| 16 | Sheath | Material | Flame-retardant polyvinyl chloride (PVC, ST2 type) | — | Colour: black (or as ordered) |
| 17 | Sheath | Nominal sheath thickness | 2.0 | mm | GB/T 12706.1 / IEC 60502-1 (cabhr & Hongqi tables) |
| 18 | Dimensions | Approx. overall diameter | 22.5 | mm | ≈ 22.5 mm (22.5–23 mm; some makers list up to 25 mm incl. tolerance) |
| 19 | Dimensions | Approx. cable weight | ≈ 1944 | kg/km | cabhr / Hongqi / Lvbao agree at 1944 kg/km (copper core alone ≈ 1645 kg/km) |
| C. Electrical Performance | |||||
| 20 | Electrical | Max. DC conductor resistance at 20 °C | 0.0991 | 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 reference 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 | ≈ 530 | A | cabhr table (530 A); depends on laying, grouping, ambient — apply correction factors per GB/T 16895 / IEC 60364 |
| 26 | Electrical | Reference ampacity — direct burial, 25 °C | ≈ 480 | A | cabhr table; 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 family; 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 |
| 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; 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 |
5. Fire Performance. Passes GB/T 18380.12 (single vertical burn) and class-C bunched burn GB/T 18380.35 (char ≤ 2.5 m; ≥ 1.5 L/m non-metallic) → class ZC per GB/T 19666. PVC = halogen-bearing; use WDZ-YJY for LSZH projects.
6. Factory & Site Testing. Routine: resistance, 3.5 kV/5 min, dimensions (ins. ≥ 1.6 mm, sheath ≥ 2.0 mm). Sample: XLPE hot-set (200 ± 3 °C / 15 min / 0.2 MPa — load elongation ≤ 175 %, permanent ≤ 15 %). Type: flame + bending. Site: DC 4U0 = 2.4 kV / 15 min (Q/GDW 13244.1-2018 practice).
| ZR-YJV 1×185 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) | ≤ 0.0991 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 ≥ 1.6 mm nominal; sheath ≥ 2.0 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; 37 × 2.52 mm; Ø ≈ 15.3 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 |
7.Cross Section Structure
| ZR-YJV 1×185 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 — 37 × 2.52 mm (37/2.52, 1+6+12+18), nominal 185 mm² | — | ≈ 15.3 (Ø) | Current-carrying element; max DC resistance ≤ 0.0991 Ω/km @ 20 °C |
| 2 | Insulation (XLPE) | Cross-linked polyethylene | 1.6 | ≈ 18.5 (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 | 2 | ≈ 22.5 (Ø overall) | Mechanical & moisture protection; flame retardance ZC (ZR) per GB/T 19666 |
| Key Dimensions & Properties | |||||
| Overall diameter | 22.5 | mm | 22.5–23 mm (up to 25 mm incl. tolerance); cabhr 22.5; Hongqi 23 | ||
| Approx. cable weight | ≈ 1944 | kg/km | cabhr / Hongqi / Lvbao agree; Cu core alone ≈ 1645 kg/km | ||
| 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 | ||
| Product Structure Introduction — ZR-YJV 1×185 mm² (English) | |||
| Layered construction description, from conductor to outer sheath · per GB/T 12706.1 & IEC 60502-1 · CU / XLPE / PVC · 0.6/1 kV | |||
| 1. Product Outline | |||
| The ZR-YJV 1×185 is a heavy-duty single-conductor power cable for 0.6/1 kV AC circuits. Its build order is simple: a stranded copper core, an extruded XLPE dielectric and a fire-retarding PVC sheath. Conformance is claimed to GB/T 12706.1 / IEC 60502-1 for the cable itself, GB/T 3956 / IEC 60228 for the core, and GB/T 19666 plus GB/T 18380 for the flame-retardant behaviour. The default “ZR” level is ZC. | |||
| Typical cross-section: 22.5 mm across and roughly 1944 kg/km in mass; drums are standardised at 100 m. It is a fixed-installation product, not intended for continuous flexing. | |||
| 2. Layer 1 — The Copper Conductor | |||
| Annealed copper is stranded to Class 2 with thirty-seven 2.52 mm wires (37/2.52, arranged 1+6+12+18) to reach 185 mm². The fine-wire bundle improves flexibility and makes bending around trays easier, while the DC resistance at 20 °C stays at or below 0.0991 Ω/km. Compaction trims the core to about 15.3 mm; a non-compacted build can measure up to roughly 17 mm. | |||
| 3. Layer 2 — The XLPE Insulation | |||
| A 1.6 mm coat of cross-linked polyethylene surrounds the core, lifting the diameter over insulation to about 18.5 mm. Because the material is cross-linked, it no longer melts at thermoplastic temperatures: the cable runs continuously at 90 °C and tolerates 250 °C for five seconds under fault. The dielectric layer must also pass 3.5 kV AC for 5 minutes on every production length, supported by a volume resistivity of at least 1×10¹² Ω·cm. | |||
| 4. Layer 3 — The PVC Outer Sheath | |||
| The finish is a 2.0 mm black PVC sheath made with flame-retardant (ST2) compound, taking the overall diameter to ≈ 22.5 mm. It shields the dielectric from water, scrapes and impacts and is the source of the ZC rating — verified by the single vertical burn (GB/T 18380.12) and the category-C bunched burn (GB/T 18380.35, char cap 2.5 m). As with all PVC jackets, halogen is present; WDZ-YJY is the zero-halogen alternative. | |||
| 5. Practical Notes for Users | |||
| • Minimum bend radius 20 × OD for single-core handling. • Site DC test 4U0 = 2.4 kV / 15 min before commissioning. • Ambient limit −20 to +45 °C; warm the drum below 0 °C. • De-rate ampacity for bundling and soil conditions. • Match glands, lugs and joint kits to the actual core diameter after confirming the factory certificate. | |||
8. Installation Care Points. Unreel without twisting; keep bends ≥ 20 × OD; avoid dragging the sheath over sharp metal; protect from UV outdoors; verify insulation before energising; size lugs and glands against the actual core diameter.
9. Intended Usage. Main feeders, large motor circuits, transformer tails, switchboard risers and industrial sub-mains at 0.6/1 kV — trays, conduits, trenches, tunnels and ducts; indoor or sheltered outdoor.
10. Supply & Order Data. Standard 100 m per drum/coil, standard marking. Order as ZR-YJV 0.6/1 kV 1×185 + length + drum type. Confirm all figures with the factory certificate before installation.
Related Products
ZC-YJV22 5 Cores Cable 3x185mm2+2x95mm2 Armoured XLPE Flame Retardant Cable 0.6/1kV
ZC-YJV22 5 Core 3x185mm²+2x95mm² Armored XLPE Flame Retardant Copper Cable 0.6/1kV Cable Designation & Meaning Code Meaning ZC Flame retardant Category C (GB/T 18380.3 / IEC 60332-3-24, Class C) YJ XLPE (cross-linked polyethylene) insulation V PVC outer sheath 22 Steel tape armoured (double steel ...
XLPE Insulated 4 Core Shielded Cable Copper Power ZR-YJV 4x300mm2 For Power Transmission
XLPE Insulated Flame Retardant Copper Cable ZR-YJV 4*300mm² for Power Transmission Cable Designation & Meaning Code Meaning ZR Legacy prefix for flame retardant; under GB/T 19666-2019 it defaults to Class C (modern equivalent: ZC). YJ XLPE (cross-linked polyethylene) insulation V PVC outer sheath — ...
Copper Conductor 4 Cores Cable ZR-YJV 4x240mm2 Flame Retardant Cable For Industrial
Copper Conductor ZR-YJV 4*240mm² Flame Retardant Cable for Industrial Wiring Code Meaning ZR Legacy prefix for flame retardant; under GB/T 19666-2019 it defaults to Class C (modern equivalent: ZC). YJ XLPE (cross-linked polyethylene) insulation V PVC outer sheath — flame-retardant grade, contains ...
ZR-YJV 4 Core Electrical Cable 4x185mm2 Flame Retardant Copper Power Distribution
ZR-YJV 4*185mm² Flame Retardant 4 Core Copper Power Distribution Cable Code Meaning ZR Legacy prefix for flame retardant; under GB/T 19666-2019 it defaults to Class C (modern equivalent: ZC). YJ XLPE (cross-linked polyethylene) insulation V PVC outer sheath — flame-retardant grade, contains halogen ...
