Solar Main Cable PV1-F 6.0mm² TUV 1500V DC Heavy Duty PV Photovoltaic 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 ( thin-wall residential) — Photovoltaic DC Cable Specification & Engineering Data 

1. Product Overview & Rating Summary. PV1-F 1×6.0 v3 is the thin-wall residential build of the single-core, extra-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 v3 uses a 0.8 mm thin-wall irradiated XLPE insulation rated IEC 60332-1 (single-cable vertical flame), with an extra-flex 98 × 0.28 mm tinned-copper conductor for maximum flexibility. It is the choice for residential rooftop PV, balcony PV, and small residential arrays where the cable is routed singly and light weight / small 200 m coil format is preferred. Finished diameter is about 5.4 mm, mass about 58 kg/km, and it is supplied in 200 m small coils (also 500 m or 1000 m drums).

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

3. Electrical Characteristics. The 6.0 mm² tinned-copper Class 5 conductor uses an extra-flex build of 98 × 0.28 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 58 A; at 60 °C ambient the rating derates to about 46 A. The voltage drop on a 100 m two-pole run at 58 A is about 3.6 V loop. Conductor loss at 58 A is about 6.6 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. Irradiated XLPE sustains a 90 °C continuous conductor temperature, with short-circuit capability up to 200 °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, and flame-retardant to IEC 60332-1 (single-cable vertical flame, self-extinguishing). Thermal ageing at 135 °C / 168 h followed by a bend test must show no cracking.

Fire Performance (PV1-F — Standard)

5. Installation Practice & Handling. Minimum bend radius is 4 × OD (≈ 22 mm) for fixed installation, 6 × OD (≈ 32 mm) if repeatedly flexed. The cable is clipped directly onto the module frame or balcony railing, routed in PV-specific cable trays, or pulled into lightweight conduit. Use PV4 / MC4-type connectors crimped with the dedicated PV crimping tool. Polarity (+ / −) is printed along the black sheath. Laying temperature must not fall below −40 °C. At about 5.8 kg per 100 m, the cable is light and supplied in 200 m small coils — ideal for residential rooftop and balcony PV installs.

Mechanical & Installation Parameters

6. Typical Service Applications. This thin-wall residential build is the default interconnection cable for: residential rooftop PV arrays, balcony PV and plug-in solar, off-grid and solar-storage DC systems, small residential arrays, garden shed / outbuilding PV, and the DC side of string inverters in light-residential installations. It is specified when the cable is routed singly on a residential scale and a small, lightweight 200 m coil is preferred over a heavy industrial drum.

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 ≥ 0.8 mm; OD ≈ 5.4 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, ozone resistance, abrasion resistance, flexibility test on repeated mandrel bends, 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. 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 200 m per small coil (also 500 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, + / −, 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 — thin-wall residential build, 200 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 UV preconditioning report and the tinned-copper strip check. Specify this v3 thin-wall residential build for small-scale residential arrays; for large commercial rooftop or ground-mount with many cables bundled in tray, specify the v2 bunched-flame build (IEC 60332-3 Class C) instead.

11. Cable Industry FAQ.

• Q1: What is the difference between this v3 thin-wall build and the v1 standard build? The v3 uses 0.8 mm thin-wall XLPE insulation with a 98 × 0.28 mm extra-flex conductor, giving a finished OD of about 5.4 mm and mass about 58 kg/km. The v1 uses 1.0 mm insulation with an 84 × 0.30 mm conductor, giving OD about 5.5 mm and mass about 60 kg/km. Both meet the same electrical ratings (3.08 Ω/km, 3.5 kV test, 200 °C short-circuit).
• Q2: Why choose the thin-wall v3 over the v1 standard? The v3 is lighter, more flexible, and supplied in a 200 m small coil — easier to handle on residential rooftops and balcony installations. The v1 is the default for commercial rooftop and long home-runs where the extra insulation thickness and drum format are preferred.
• Q3: Why use 6.0 mm² for residential PV? 6.0 mm² is used when the residential string has long DC home-runs (>20 m from balcony rail to inverter) or high-string-current bifacial modules, where 4.0 mm² would give excessive voltage drop. For short balcony-to-inverter runs under 15 m, 4.0 mm² is usually sufficient.
• Q4: 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.
• Q5: Why use tinned copper? Tinning protects the copper strands against oxidation and atmospheric corrosion over decades of outdoor service — critical because PV cables are expected to last 25 years.
• Q6: 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.
• Q7: 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.
• Q8: Can this v3 be used in conduit? Yes — the thin-wall insulation is suitable for lightweight residential conduit, but the cable is primarily designed for outdoor UV-exposed service. If routed in enclosed occupied spaces, specify a low-smoke halogen-free build instead.
• Q9: 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.
• Q10: What is the voltage drop on a 30 m balcony-to-inverter run? At 58 A and 3.08 Ω/km, the loop voltage drop on 30 m is about 1.1 V — well within the 2% design guideline for residential PV.
• Q11: Can I use a 200 m coil for a 50 m balcony install? Yes — the 200 m coil is designed for residential installs where the installer measures and cuts to length, sealing the unused end. For larger commercial installs, the 500 m or 1000 m drum format is more cost-effective.