ZR-YJV Single Core Cable 1 X 300mm2 Flame Retardant 0.6/1kV Solid Copper XLPE Insulation
Product Summary
Product Details
ZR-YJV Single Core Cable
,Single Core Cable 1 x 300mm2
,1kV Low Voltage Power Cable
Product Description
ZR-YJV 1*300mm² Flame Retardant Single Core Cable, 0.6/1kV Solid Copper, XLPE Insulation PVC Jacket for Construction Power
Code Mean:ZR-Flame Retardant,YJ-XLPE Insulation,V-PVC Outer Sheathed
ZR-YJV 1×300 mm² — Cable Profile
1. Identity. The ZR-YJV 1×300 is the 300 mm² class of the flame-retardant YJV line: a single copper core under XLPE insulation and a PVC jacket, rated 0.6/1 kV (Um = 1.2 kV), 50 Hz. Certification path: GB/T 12706.1 / IEC 60502-1 (cable), GB/T 3956 / IEC 60228 (core), GB/T 19666 / GB/T 18380 (fire, default ZC).
2. Physical Build. Layer-by-layer nominal data:
| Layer | Build | Wall | Diameter |
|---|---|---|---|
| Core | Annealed copper, Class 2, 61 × 2.5 mm (61/2.5, 1+6+12+18+24), 300 mm² | — | ≈ 18.7 mm (compacted; up to ≈ 19.2 mm) |
| Dielectric | Cross-linked polyethylene | 1.8 mm | ≈ 22.3 mm over insulation |
| Jacket | Flame-retarded PVC, ST2, black | 2.5 mm | ≈ 27.3 mm overall |
Weight ≈ 3076 kg/km (2960–3076 across makers; copper alone ≈ 2667 kg/km); OD 27.3–28.4 mm.
3. Electrical Character. DC resistance ≤ 0.0601 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 ≈ 720 A in air (30 °C) and ≈ 630 A direct-buried — derate per GB/T 16895 / IEC 60364.
|
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) |
≤ 0.0601 Ω/km |
GB/T 3956 / IEC 60228 max |
|
AC resistance @90 °C (est.) |
≈ 0.078 Ω/km |
copper temp. coefficient |
|
Current rating in air (30–40 °C, single circuit, single-core) |
≈ 685 – 705 A |
PVC sheath; design ≈ 685 A |
|
Direct buried (20 °C, soil 1.0 K·m/W, 0.7 m) |
≈ 620 – 640 A |
design ≈ 620 A |
|
Short-circuit current (1 s adiabatic, Cu, 250 °C) |
≈ 34.68 kA |
reference |
|
Frequency |
50/60 Hz AC (DC usable) |
— |
4. Thermal Boundaries. Continuous 90 °C; short-circuit 250 °C (≤ 5 s); ambient −20 to +45 °C; laying ≥ 0 °C; minimum bend radius 20 × OD (single core).
| ZR-YJV 1×300 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 1×300 | — | 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 | 300 | 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 | 61 wires × 2.5 mm (61/2.5, lay-up 1+6+12+18+24) | — | Class 2 round stranded; nominal section ≈ 300 mm² |
| 11 | Conductor | Conductor diameter | ≈ 18.7 | mm | ≈ 18.7 mm compact (18.7–19.2 mm across stranding practice) |
| 12 | Conductor | Max. DC resistance of conductor at 20 °C | 0.0601 | Ω/km | GB/T 3956, Class 2 copper; acceptance criterion for 300 mm² |
| 13 | Insulation | Material | Cross-linked polyethylene (XLPE) | — | Thermally cross-linked; natural/transparent colour |
| 14 | Insulation | Nominal insulation thickness | 1.8 | mm | GB/T 12706.1 / IEC 60502-1 (0.6/1 kV, 300 mm²) |
| 15 | Insulation | Diameter over insulation | ≈ 22.3 | mm | ≈ 18.7 + 2 × 1.8 (calculated, compact conductor) |
| 16 | Sheath | Material | Flame-retardant polyvinyl chloride (PVC, ST2 type) | — | Colour: black (or as ordered) |
| 17 | Sheath | Nominal sheath thickness | 2.5 | mm | GB/T 12706.1 / IEC 60502-1 (cabhr table; ahtk lists 1.9) |
| 18 | Dimensions | Approx. overall diameter | 27.3 | mm | ≈ 27.3 mm (27.3–28.4 mm across sources: cabhr 27.3; ahtk 28.4; Meihe 28.24) |
| 19 | Dimensions | Approx. cable weight | ≈ 3076 | kg/km | cabhr 3076; ahtk 3056; Meihe 2960 (copper core alone ≈ 2667 kg/km) |
| C. Electrical Performance | |||||
| 20 | Electrical | Max. DC conductor resistance at 20 °C | 0.0601 | 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 | ≈ 720 | A | cabhr table (720 A); depends on laying, grouping, ambient — apply correction factors per GB/T 16895 / IEC 60364 |
| 26 | Electrical | Reference ampacity — direct burial, 25 °C | ≈ 630 | 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. Flame Resistance. Passes GB/T 18380.12 single burn and class-C bunched burn GB/T 18380.35 (char ≤ 2.5 m) → ZC per GB/T 19666. PVC carries halogen — choose WDZ-YJY for LSZH specs.
| Flame Retardant Performance Data Sheet — ZR-YJV 0.6/1 kV 1×300 mm² | ||||
| ZR = Legacy flame-retardant mark; under GB/T 19666-2019 it defaults to Class C (modern equivalent: ZC) | ||||
| 1. GENERAL INFORMATION | ||||
| 1 | Cable designation | ZR-YJV 1×300 mm² | Cu / XLPE / PVC (FR) | GB/T 12706.1 |
| 2 | Rated voltage U₀/U | 0.6 / 1 kV | Uₘ = 1.2 kV | IEC 60502-1 |
| 3 | Flame retardant class | Class C (default for ZR) | Bundled combustion, char ≤ 2.5 m | GB/T 19666-2019 |
| 4 | Conductor | Cu, Class 2, 61×∅2.52 mm | Ø ≈ 22.4 mm | GB/T 3956 |
| 5 | Insulation / Sheath | XLPE 1.4 mm / PVC (FR) 1.4 mm | Black | GB/T 12706.1 |
| 2. FLAME RETARDANT CLASSIFICATION (ZR = Class C) | ||||
| Level | Designation example | Non-metallic volume (L/m) | Flame application | Char length (max) |
| A | ZA-YJV / WDZA | ≥ 7.0 | 40 min | ≤ 2.0 m |
| B | ZB-YJV / WDZB | 3.5 | 40 min | ≤ 2.5 m |
| C | ZC-YJV / ZR-YJV | 1.5 | 20 min | ≤ 2.5 m |
| D | ZD-YJV | 0.5 | 20 min | ≤ 2.5 m |
| 3. FLAME RETARDANT TEST ITEMS & TECHNICAL LIMITS (this product = Class C) | ||||
| No. | Test item | Standard / Method | Requirement / Limit (Class C) | Result |
| 1 | Bunched flame propagation (vertical) | GB/T 18380.3 / IEC 60332-3-24 (Cat. C) | Char length ≤ 2.5 m above top of burner; self-extinguishing within 1 h | Pass |
| 2 | Single-cable flame (vertical) | GB/T 18380.1 / IEC 60332-1-2 | No sustained burning after removal of flame; char ≤ 50 mm × 50 mm | Pass |
| 3 | Non-metallic material volume (test specimen) | GB/T 18380.3 (Cat. C) | 1.5 L/m of cable length | 1.5 L/m |
| 4 | Flame source duration (Cat. C) | GB/T 18380.3 | 20 min (supply air 5000 L/min, propane 600 mm³/h) | 20 min |
| 5 | pH value of combustion gases | GB/T 17650.2 / IEC 60754-2 | ≥ 4.3 (informative for ZR; certified for WDZ) | ≥ 4.3* |
| 6 | Conductivity of acid gases | GB/T 17650.2 / IEC 60754-2 | ≤ 10 µS/mm (informative for ZR; certified for WDZ) | ≤ 10* |
| 7 | Halogen acid gas emission (HCI) | GB/T 17650.1 / IEC 60754-1 | ≤ 5 % (informative for ZR; PVC sheath contains Cl) | Contains Cl* |
| 8 | Smoke density (transmittance, min.) | GB/T 17651 / IEC 61034-2 | ≥ 60 % (informative for ZR; certified for WDZ) | Not certified* |
| 9 | Oxygen index (LOI, min.) | GB/T 2406 / IEC 60754 ref. | ≥ 30 % (typical for FR-PVC ≥ 32 %) | ≥ 32 % |
| 10 | Flame retardant in insulation & sheath | FR-PVC + FR-XLPE compound | Sb₂O₃ / Al(OH)₃ based FR system | Compliant |
| 4. NOTES | ||||
| * | Items 5–8 marked with * are INFORMATIVE for plain ZR (Class C) cable. ZR-YJV uses flame-retardant PVC which contains halogen; pH / conductivity / smoke / halogen are NOT certified limits. | |||
| ** | For certified halogen-free + low-smoke performance, use WDZ-YJY. For circuit-integrity (fire-survival), use NH-ZR-YJV. | |||
| *** | ZR is a legacy GB prefix; modern specifications use ZC (Class C). ZR-YJV ≈ ZC-YJV in flame-retardant performance. | |||
| Flame Retardant Class Comparison — ZR (Class C) vs WDZ vs Z (A/B) | |||||
| Property | ZR-YJV (this, C) | WDZ-YJV | WDZA-YJY (A) | NH-ZR-YJV | Ordinary YJV |
| Flame retardant | Class C | Class C | Class A (最高) | Class C | None |
| Halogen-free (W) | No (PVC含Cl) | Yes | Yes | No (Include Mica Tape) | No |
| Low smoke (D) | No | Yes (≥60%) | Yes (≥60%) | Yes | No |
| Fire-survival (NH) | No | No | No | Yes (90 min, 830℃) | No |
| Smoke corrosivity | Corrosive HCI | Non-corrosive | Non-corrosive | Low corrosivity | Corrosive |
| Typical use | General, cost-saving | Metro/Hospital | Tunnel/Underground | Emergency circuits | General |
| Relative price | 1.0 (base) | ~1.15× | ~1.30× | ~1.40× | 1.0 (base) |
6. Test Regime. Routine: DC resistance, 3.5 kV/5 min, dimensional audit (ins. ≥ 1.8 mm, sheath ≥ 2.5 mm). Sample: XLPE hot-set (200 ± 3 °C / 15 min / 0.2 MPa). Type: flame + bending. Site: DC 4U0 = 2.4 kV / 15 min (Q/GDW 13244.1-2018 practice).
| ZR-YJV 1×300 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) | ≤ 0.0601 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 ≥ 1.8 mm nominal; sheath ≥ 2.5 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; 61 × 2.5 mm; Ø ≈ 18.7 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. Installation Do's & Don'ts. Do keep bends ≥ 20 × OD, use rollers and smooth radii, protect from UV; don't drag over sharp metal, flex continuously, or energise before the site DC test. Verify the actual core Ø before connector selection.
|
Size |
Insulation |
Sheath |
OD (mm) |
Weight (kg/km) |
R₂₀ (Ω/km) |
Ampacity (A) air / buried |
|---|---|---|---|---|---|---|
|
1×16 |
0.7 |
1.4 |
9.4 |
~215 |
≤1.15 |
105 / 95 |
|
1×25 |
0.9 |
1.4 |
11.2 |
~310 |
≤0.727 |
140 / 130 |
|
1×35 |
0.9 |
1.4 |
13.2 |
~410 |
≤0.524 |
175 / 160 |
|
1×50 |
1.0 |
1.4 |
15.6 |
~545 |
≤0.387 |
210 / 190 |
|
1×70 |
1.1 |
1.4 |
17.8 |
~720 |
≤0.268 |
270 / 245 |
|
1×95 |
1.1 |
1.4 |
20.0 |
~950 |
≤0.193 |
330 / 300 |
|
1×120 |
1.1 |
1.4 |
22.0 |
~1,140 |
≤0.153 |
385 / 350 |
|
1×150 |
1.2 |
1.4 |
24.0 |
~1,360 |
≤0.124 |
440 / 400 |
|
1×185 |
1.2 |
1.4 |
26.0 |
~1,600 |
≤0.0991 |
505 / 460 |
|
1×240 |
1.2 |
1.4 |
29.0 |
~1,980 |
≤0.0754 |
590 / 535 |
|
1×300 |
1.4 |
1.4 |
32.0 |
~2,420 |
≤0.0601 |
685 / 620 |
8.Cross Section Structure
| ZR-YJV 1×300 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 — 61 × 2.5 mm (61/2.5, 1+6+12+18+24), nominal 300 mm² | — | ≈ 18.7 (Ø) | Current-carrying element; max DC resistance ≤ 0.0601 Ω/km @ 20 °C |
| 2 | Insulation (XLPE) | Cross-linked polyethylene | 1.8 | ≈ 22.3 (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 | 2.5 | ≈ 27.3 (Ø overall) | Mechanical & moisture protection; flame retardance ZC (ZR) per GB/T 19666 |
| Key Dimensions & Properties | |||||
| Overall diameter | 27.3 | mm | 27.3–28.4 mm across sources (cabhr 27.3; ahtk 28.4; Meihe 28.24) | ||
| Approx. cable weight | ≈ 3076 | kg/km | cabhr 3076; ahtk 3056; Meihe 2960; Cu core alone ≈ 2667 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 1×300 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 Perspective | |||
| The ZR-YJV 1×300 is the next step up in the flame-retardant YJV range, engineered for 0.6/1 kV AC duty with a 300 mm² copper path. It observes GB/T 12706.1 / IEC 60502-1 for the finished cable, GB/T 3956 / IEC 60228 for the core and GB/T 19666 for the ZR (default ZC) rating. Externally it measures about 27.3 mm and masses ≈ 3076 kg/km; coils and drums are supplied in 100 m standard lengths. | |||
| As a fixed-installation cable it is not meant for trailing or continuous flexing; mechanical planning should assume rigid handling. | |||
| 2. The Conductor Layer | |||
| Sixty-one copper wires, each 2.5 mm in diameter (61/2.5, concentric order 1+6+12+18+24), are stranded to Class 2 for a nominal 300 mm². The finer multi-wire arrangement improves bending response and eases pulling through risers, while DC resistance at 20 °C is bounded at 0.0601 Ω/km. Compacted, the core measures ≈ 18.7 mm; a relaxed round-lay construction can reach ≈ 19.2 mm. | |||
| 3. The Insulation Layer | |||
| XLPE is extruded over the core at 1.8 mm, moving the diameter over insulation to ≈ 22.3 mm. Thermoset behaviour after cross-linking allows 90 °C continuous service and 250 °C for five seconds under short-circuit. The dielectric also delivers volume resistivity ≥ 1×10¹² Ω·cm and survives the mandatory 3.5 kV AC, 5-minute routine test on every production run. | |||
| 4. The Sheath Layer | |||
| A heavier 2.5 mm flame-retardant PVC (ST2) jacket closes the cable at ≈ 27.3 mm. The thicker wall reflects the larger diameter and adds abrasion and impact margin, and it is the layer that earns the ZC fire rating via GB/T 18380.12 (single burn) and GB/T 18380.35 (class C, char ≤ 2.5 m). Halogen is inherent to PVC; WDZ-YJY is the zero-halogen substitute where smoke and toxicity limits apply. | |||
| 5. Handling & Application Notes | |||
| • Respect the 20 × OD minimum bend for single cores. • Run the DC 4U0 = 2.4 kV / 15 min site test before energising. • Keep service ambient within −20 to +45 °C; warm drums when below 0 °C. • Recalculate ampacity for grouping, tray fill and soil conditions. • Verify the actual core diameter against the certificate before selecting connectors. |
9. Field of Use. Transformer LV tails, large motor and pump feeders, switchgear risers, industrial sub-mains, data-centre and plant distribution at 0.6/1 kV — trays, ducts, trenches, tunnels; indoor or sheltered outdoor.
10. Purchase Notes. Order as ZR-YJV 0.6/1 kV 1×300, with length, drum type and marking. Standard 100 m drums; confirm all figures against the factory certificate.
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