Solar Array Cable PV1-F 6.0mm² TUV 1500V DC UV Resistant PV String Wire

Cable Designation & Meaning

Construction: Tinned copper conductor, halogen-free cross-linked polyolefin (XLPO) insulation and sheath, single-core flexible photovoltaic DC cable.

Applicable Standards

• EN 50618:2014 — Electric cables for photovoltaic systems (DC rated voltage 1.8 kV)
• IEC 62930 — Photovoltaic system cables (single-core, XLPO insulated, rated up to 1.5 kV DC)
• TÜV 2 PfG 1169/08.2007 — TÜV specification for PV cables
• IEC 60228 / GB/T 3956 — Conductors (Class 5 flexible, tinned copper)
• IEC 60332-1 — Flame retardant (single cable)
• IEC 61034 — Smoke density (low smoke)
• IEC 60754 — Halogen content (halogen-free)
• IEC 60811 — Insulating and sheathing materials — Common test methods

PV1-F 1×6.0 mm² (oil-resistant + dual-color) — Photovoltaic DC Cable Specification & Engineering Data 

1. Product Overview & Rating Summary. PV1-F 1×6.0 v6 is the oil-resistant + dual-color build of the single-core, flexible, tinned-copper photovoltaic DC cable rated 0.6/1.0 kV DC (max system voltage 1.8 kV), built and certified to TÜV 2 PFG 1169 / EN 50618. This v6 uses a 1.0 mm oil-resistant irradiated XLPE insulation with a continuous dual-color polarity strip on the black sheath — the choice for industrial rooftop PV, factory building PV, and workshop / oil-mist environments where the cable may be exposed to lubricating oils, cutting fluids, or chemical fumes. The dual-color strip allows instant visual identification of + and − poles at termination, eliminating polarity-reversal errors. Finished diameter is about 5.6 mm, mass about 62 kg/km, and it is supplied in 500 m coils.

2. Layer-by-Layer Construction (Conductor to Outer).

3. Electrical Characteristics. The 6.0 mm² tinned-copper Class 5 conductor uses the standard 84 × 0.30 mm tinned wires, giving a maximum DC resistance of 3.08 Ω/km at 20 °C. Routine proof is 3.5 kV AC / 5 minutes (or 6.5 kV DC / 15 minutes). Insulation resistance ≥ 200 MΩ·km. With the single core in free air at 30 °C, reference loading is about 62 A; at 60 °C ambient the rating derates to about 48 A. The voltage drop on a 100 m two-pole run at 62 A is about 3.8 V loop. Conductor loss at 62 A is about 6.7 W per metre at 90 °C.

Insulation & Sheath Data

Electrical Parameters

Reference values: 6.0 mm² Cu at 56 A, DC 1000 V → max DC power ≈ 56 kW per string (2 strings in parallel = 112 kW). Voltage drop at 56 A ≈ 19.0 mV/A·m (≈1.90% per 10 m at 56 A, 1000 V). At 70 A → ≈ 23.7 mV/A·m.

Temperature Characteristics

4. Thermal Response & Flame Behaviour. Oil-resistant irradiated XLPE sustains a 90 °C continuous conductor temperature, with short-circuit capability up to 250 °C for ≤ 5 s. The cable is rated for service ambients between −40 °C and +90 °C and is cold-bend tested at −40 °C. The black carbon-loaded insulation is UV-resistant (1000 h UV preconditioning), ozone-resistant, oil-immersion tested per IEC 60811-404, and flame-retardant to IEC 60332-1 (single-cable vertical flame, self-extinguishing).

Fire Performance (PV1-F — Standard)

5. Installation Practice & Handling. Minimum bend radius is 4 × OD (≈ 22 mm) for fixed installation, 6 × OD (≈ 34 mm) if repeatedly flexed. The cable is clipped directly onto the module frame, routed in PV-specific cable trays, or pulled into lightweight conduit. Use PV4 / MC4-type connectors crimped with the dedicated PV crimping tool. The dual-color strip on the black sheath provides instant + / − identification. Laying temperature must not fall below −40 °C. At about 6.2 kg per 100 m, the cable is light and supplied in 500 m coils — ideal for industrial rooftop PV.

Mechanical & Installation Parameters

6. Typical Service Applications. This oil-resistant + dual-color build is the default interconnection cable for: industrial rooftop PV on factory buildings, warehouse and logistics rooftop PV, workshop / oil-mist environments, commercial PV with chemical exposure, and any PV array where the cable may come into contact with lubricating oils, cutting fluids, hydraulic oil, or chemical fumes. The dual-color polarity strip is specified when installers need instant visual + / − identification at termination to prevent polarity-reversal errors on large industrial rooftop arrays.

7. Testing & Quality Assurance Regime. Routine tests on every coil include conductor DC resistance ≤ 3.08 Ω/km at 20 °C, the 3.5 kV AC / 5 min withstand, the 6.5 kV DC / 15 min withstand, insulation resistance ≥ 200 MΩ·km, dimensional check (insulation ≥ 1.0 mm; OD ≈ 5.6 mm), and visual marking. Type tests include UV preconditioning (1000 h), thermal ageing (135 °C / 168 h), cold bend at −40 °C, heat shock at 150 °C, single-cable flame per IEC 60332-1, oil immersion per IEC 60811-404, ozone resistance, abrasion resistance, and tinned-copper strip check.

Cable Parameters

Cable Test Parameters

Cable Cross Section Structure

Cable Construction Description

8. Standards & Conformity. Design and production are governed by TÜV 2 PFG 1169 (German TÜV certification for PV cables), EN 50618 (European harmonised standard), and GB/T 32129 (Chinese national standard). Conductors satisfy EN 60228 Class 5. Flame performance follows IEC 60332-1. Oil resistance follows IEC 60811-404. The cable carries the TÜV mark and is suitable for use in 1.8 kV DC PV systems.

9. Packaging, Storage & Logistics. Standard delivery is 500 m per coil (also 200 m or 1000 m drums), with bespoke cut lengths available on request. Each coil carries continuous marking: PV1-F, 1×6.0, 0.6/1.0 kV, + / −, dual-color, IEC 60332-1, supplier identity, production year, and sequential metre marks. Storage should be in dry, covered premises at −20 to +40 °C, shielded from direct sunlight.

10. Procurement Specification. State "PV1-F 1×6.0 mm² 0.6/1.0 kV DC — oil-resistant + dual-color build, 500 m coil" together with the required length. Always order PV4 / MC4-type connectors and the dedicated crimping tool at the same time. Always request the factory test certificate, which must include the IEC 60811-404 oil immersion report. Specify this v6 oil-resistant build for industrial / chemical / oil-mist environments; for clean commercial rooftop, the v1 standard build is sufficient and lower cost.

11. Cable Industry FAQ.

• Q1: What is the difference between this v6 oil-resistant build and the v1 standard build? The v6 uses 1.0 mm oil-resistant XLPE insulation with a dual-color polarity strip, while the v1 uses standard XLPE with plain black marking. The v6 passes the IEC 60811-404 oil immersion test; the v1 does not. The v6 carries about 62 A in free air; the v1 carries about 60 A. The dual-color strip provides instant + / − identification.
• Q2: Why use oil-resistant cable in industrial rooftop PV? Factory buildings, warehouses, and workshops often have lubricating oils, cutting fluids, hydraulic oil, or chemical fumes in the ambient air. Standard XLPE insulation would swell, crack, or embrittle when exposed to these fluids over decades; the oil-resistant XLPE formulation survives continuous oil mist and occasional splash.
• Q3: What is the dual-color polarity strip? A continuous coloured stripe along the black sheath — typically red for the positive pole and blue/black for the negative pole — allowing installers to identify polarity at a glance without reading the printed marking. This eliminates polarity-reversal errors on large industrial rooftop arrays.
• Q4: Why use 6.0 mm² for industrial rooftop PV? Industrial rooftop PV often uses high-string-current modules with long home-runs across large factory roofs. The 6.0 mm² conductor carries about 62 A and limits voltage drop on runs of 30–50 m from roof tiles to wall-mounted inverters.
• Q5: Why is it single-core, not two-core? PV strings carry DC at up to 1.8 kV. Running + and − in separate single-core cables keeps the installation modular and avoids loop-current heating in shared conductors.
• Q6: Why use tinned copper? Tinning protects the copper strands against oxidation and atmospheric corrosion over decades of outdoor service — critical in industrial environments with chemical fumes.
• Q7: Why use MC4 connectors? MC4 (PV4) connectors are weather-sealed, polarised, and rated for 1.5 kV DC. They are crimped with the dedicated tool — hand-twisted terminals are the #1 failure point in PV DC arrays.
• Q8: Can this v6 be used in clean commercial rooftop? Yes — it is fully rated for clean rooftop service, but the oil-resistant formulation and dual-color strip are over-specified and about 15–20% more expensive per metre. For clean commercial rooftop, the v1 standard build is sufficient.
• Q9: What is the maximum string voltage? PV1-F is rated for 1.8 kV DC system voltage, covering 1500 V PV strings with safety margin for open-circuit Voc at cold temperatures.
• Q10: How long does PV1-F last? When properly installed with correct connectors and routed out of standing water, PV1-F is designed for a 25-year outdoor service life matching the solar module warranty.
• Q11: Does oil resistance mean the cable can be submerged in oil? No — the IEC 60811-404 test covers short-term oil immersion at room temperature, not continuous submersion. The v6 is designed for oil-mist environments and occasional splash, not for installation in oil sumps or continuous oil immersion.