H1: H1Z2Z2-K Solar Cable 1x10mm² — TUV Certified Supply for Solar Farm Installations
Solar farm downtime caused by cable degradation is a direct hit to your PPA revenue. Ground faults, insulation cracking, and connector oxidation trigger unplanned O&M costs that erode project margins over 25 years. The 1x10mm² H1Z2Z2-K solar cable removes those risks. It delivers a fixed DC string wiring solution engineered to maintain insulation integrity under continuous 1500V DC load and extreme environmental cycling. Supply chain continuity comes from bulk wholesale inventory backed by full TUV Rheinland certification, so your EPC timelines stay intact.
Tinned Copper Conductor, Flex Class 5
The bare electrolytic copper strands are tinned before bunching to IEC 60228 Class 5. Oxidation at the crimp interface is arrested. This means you cut torque-related failures in MC4 connectors and eliminate the hotspot generation that quietly degrades string efficiency. For a 50MW site, fewer re-termination callbacks translate directly to faster commissioning handover.
Electron Beam Cross-Linked XLPE Insulation
Standard thermoplastic insulations soften at elevated tray ratings. This XLPE compound is cross-linked via electron beam irradiation, locking the molecular structure to withstand conductor temperatures of 120°C sustained, with 250°C short-circuit tolerance. The result is no deformation under mechanical clamp pressure, no cold flow in cable trays, and a predictable service life well beyond the module warranty period.
UV, Ozone, and Ammonia Resistance — Double-Layer Sheath
The H1Z2Z2-K jacket formula is not a generic LSZH. It is a cross-linked, halogen-free polyolefin co-polymer certified to EN 50618 for direct burial and open-air exposure. Tensile strength stays above 9 N/mm² after 5000 hours of Xenon-arc weathering. Project owners gain the freedom to route strings across dual-use agrivoltaic sites or coastal salt-mist zones without second-guessing jacket embrittlement or rodent ingress.
Flame Retardance Without Halogen
A photovoltaic arc can propagate along cable trays inside combiner boxes. This cable’s jacket meets the CPR Construction Products Regulation Class Dca-s2,d2,a1 and IEC 60332-1-2 vertical flame propagation. Smoke density and acid gas emissions are negligible. In a fault event, you keep the evacuation route clear and protect sensitive BOS electronics from corrosive hydrogen chloride gas, reducing total loss risk for the asset owner.
Wholesale-Ready Lengths and Laser Marking
No mid-reel joints; every meter is surface-printed with “H1Z2Z2-K 1X10mm² TUV — EN 50618” and a sequential meter mark. This creates a fully traceable audit trail from the loading dock to the string inverter. For bulk procurement, we supply 500m, 1000m, and custom-cut drums pre-configured for combiner box drop points, slashing on-site cutting waste and labor hours during cable pull phase.
Technical Specifications
The test data below references EN 50618 and TUV 2PfG 1169/08. Type-test certificates are supplied with every drum for IEC 62930 compliance verification on request.
| Property | Specification | Applicable Standard |
|---|---|---|
| Nominal Cross-Section | 10 mm² | IEC 60228 |
| Conductor Construction | Tinned copper, Class 5 flexible (approx. 80 × 0.40 mm strands) | IEC 60228, EN 50618 |
| Insulation Material | Electron beam cross-linked halogen-free polyolefin (XLPO) | EN 50618 Table B.1 |
| Outer Sheath Material | Cross-linked halogen-free polyolefin (XLPO), black or red | EN 50618 |
| Nominal Diameter Over Sheath | 6.5 mm ± 0.3 mm | — |
| Weight (approx.) | 135 kg per 1000 m | — |
| Maximum DC System Voltage | 1500 V DC (conductor-to-earth) | IEC 62930 |
| AC Voltage Rating | 0.6/1.0 kV to ground, 1.0/1.0 kV phase-to-phase | EN 50618 |
| Max Permissible Conductor Temperature | +120°C (continuous), +250°C (short-circuit) | EN 50618 |
| Ambient Temperature Range | -40°C to +90°C (fixed installation) | EN 50618 |
| Minimum Bending Radius | ≤ 4 × outer diameter (fixed install) | EN 50618 |
| DC Conductor Resistance at 20°C | ≤ 1.91 Ω/km | IEC 60228 |
| Weathering Resistance | Passes 5000 h Xenon-arc, elongation > 300% retained | EN 50396, HD 605 S2 |
| Flame Propagation | Category Dca-s2,d2,a1 under CPR (EU) 305/2011 | EN 50575, EN 50399 |
| Halogen Content | Zero halogen (pH ≥ 4.3, conductivity ≤ 10 µS/mm) | IEC 60754-1/-2 |
Application Scenarios Where This Cable Removes Field Risk
- Utility-scale fixed-tilt solar farms: Direct-buried in cable trenches or laid in open trays. The XLPE jacket shrugs off damp heat and alkaline soil conditions that normally cause blowing faults in PVC alternatives after 7–8 years.
- Commercial rooftop PV with DC optimizers: The extra-flex Class 5 conductor and tight bend radius handle the short jumper loops between module-level power electronics without degrading insulation under hot rooftop temperatures exceeding 70°C.
- Floating PV installations: Continuous contact with high humidity and potential water splashing demands the 1500V DC wet insulation resistance rating inherent to the H1Z2Z2-K standard. Tinned copper prevents galvanic corrosion near the waterline.
- Agrivoltaics and greenhouses: Ammonia-rich atmospheres from fertilizers rapidly embrittle nylon-sheathed cables. This cable’s chemically inert cross-linked jacket holds its tensile strength, preventing micro-cracks that invite moisture ingress.
- Battery storage DC interconnects: Short-circuit currents in containerized BESS can spike to 250°C for brief cycles. The electron beam cross-linking allows the copper to carry fault current without insulation melting or fire triggering a cascading module failure.
International Compliance & QA Certifications
Each shipment arrives with a digital copy of the TUV Rheinland 2PfG 1169/08 certificate and lot-specific test reports. You avoid third-party lab delays during pre-commissioning snag inspections.
- ✅ TUV Rheinland 2PfG 1169/08 (EN 50618 type-test certification)
- ✅ EN 50618:2014 (Solar cable for photovoltaic systems)
- ✅ IEC 62930 (1500 V DC solar cable requirements)
- ✅ CPR Delegated Regulation (EU) No 305/2011 — Class Dca-s2,d2,a1
- ✅ RoHS Directive 2011/65/EU and amendment (EU) 2015/863
- ✅ ISO 9001:2015 quality management system (factory-level, audited by TUV)
- ✅ IEC 60228 Conductor Class 5 compliance with dimensional verification
- ✅ Low Smoke Zero Halogen (LSZH) to IEC 60754 and EN 61034
FAQ — Procurement and Engineering Answers
Is the H1Z2Z2-K cable a direct replacement for PV1-F on new projects?
Yes, and project owners should insist on it. H1Z2Z2-K to EN 50618 superseded PV1-F for fixed installations because it adds stricter 1500V DC qualification, dual cross-linked layers, and mandatory ammonia resistance. A system designed for 1500V must use H1Z2Z2-K to meet IEC 62930 fire and insulation coordination. The terminals and connectors work identically because the core dimensions are standardized. You gain zero marginal cost safety improvement just by specifying the current standard.
What is the typical wholesale MOQ for 1x10mm² solar cable, and can you pre-cut?
Our standard drum length is 1000m. We ship partial-drum increments from 500m for rapid prototyping or small-site commissioning without the large-cut surcharge. For bulk orders exceeding 50km per diameter, we pre-cut fixed-length segments (±1%) and pre-coil them on custom drums mapped to your combiner box layout. Lead time for pre-cut service is 14 working days from approved drawings.
Does the cable require additional UV protection when installed in open cable trays in the Middle East?
No. The black outer sheath compound contains an optimized carbon black dosage that absorbs UV without surface chalking. We commission Xenon-arc tests to EN ISO 4892-2 for 5000 hours on annual production runs. In regions with 2500+ kWh/m² annual irradiation, this cable maintains mechanical properties with no supplementary conduit or UV tape necessary. The main failure point in that climate is not UV — it’s termination overheating; ensure your MC4 connectors are certified for 10mm² and installed with calibrated crimp tools.
Request bulk pricing and IEC test reports.
We supply EPCM contractors and solar developers with 1x10mm² H1Z2Z2-K cable in black or red jackets directly from CCC- and TUV-certified warehousing. For a quote on your next 100MW site, mention your standard drum length and start of construction window.