H1Z2Z2-K Photovoltaic Cables in New Energy Field

I. Technical Parameters and Characteristics of H1Z2Z2-K Photovoltaic Cables

H1Z2Z2-K is a specially designed DC cable for photovoltaic power systems, compliant with the European EN 50618:2014 standard. The main technical parameters are as follows:

• ‌Rated Voltage‌: DC 1.5kV/AC 1.0kV (maximum voltage 1800V)
• ‌Temperature Range‌:
  • Fixed installation: -40℃ to +90℃
  • Maximum operating temperature: 120℃ (sustainable for 20,000 hours)
  • Short-circuit temperature: 250℃ (within 5 seconds)
• ‌Conductor Material‌: Tinned copper (99.98% purity), multi-strand ultra-fine copper wire structure
• ‌Insulation and Sheath‌: Irradiation cross-linked halogen-free flame-retardant polyolefin (XLPO)
• ‌Mechanical Performance‌:
  • Minimum bending radius: 5 times the cable outer diameter
  • Thermal extension performance: elongation ≤100% at 250℃, permanent elongation ≤25%
• ‌Environmental Characteristics‌:
  • UV-resistant, ozone-resistant, acid-alkali corrosion-resistant
  • Halogen-free, low-smoke, flame-retardant (IEC 60332-1 standard)
  • Service life: ≥25 years

II. Core Requirements of New Energy Vehicles for Cables

New energy vehicles (especially high-voltage systems) have strict technical standards for cables:

1. ‌Electrical Performance‌:

   • Voltage rating: usually 600VAC/900VDC or higher
   • Insulation resistance: ≥10Ω·m
   • Withstand voltage test: withstand 3 times the rated voltage (up to 1000V)

2. ‌Mechanical Performance‌:

   • Tensile strength: ≥200N (for 8mm² cable)
   • Vibration test: pass 1 million simulated driving shock tests
   • Bending performance: 500 times dynamic bending test

3. ‌Environmental Adaptability‌:

   • Temperature range: -40℃ to 125℃/150℃
   • Waterproof rating: IP67/IP69K
   • Chemical resistance: resist corrosion from gasoline, coolant, etc.

4. ‌Special Requirements‌:

   • Electromagnetic shielding: prevent high-frequency radiation interference
   • Flame retardant rating: UL94 V-0
   • High-voltage interlock: disconnect high-voltage circuit within 0.5 seconds

III. Application Evaluation of H1Z2Z2-K in New Energy Field

1. Application in Photovoltaic Power Systems

H1Z2Z2-K performs excellently in photovoltaic applications:

• ‌Component Connection‌: Suitable for series connection between photovoltaic components and inverter connection
• ‌Environmental Adaptability‌: Can be used for long periods in harsh environments such as coastal and desert areas
• ‌Safety Features‌: Halogen-free flame-retardant material meets the fire protection requirements of photovoltaic systems

2. Potential Application in New Energy Vehicles

Advantages:

• ‌Voltage Rating‌: DC 1.5kV can meet the requirements of some high-voltage systems
• ‌Temperature Range‌: -40℃~120℃ close to vehicle requirements
• ‌Material Characteristics‌: Excellent chemical corrosion resistance

Limitations:

• ‌Shielding Performance‌: No shielding layer design may not meet EMC requirements
• ‌Long-term Stability‌: 120℃ continuous operation capability needs verification (vehicle requirements 125℃/150℃)
• ‌Mechanical Strength‌: Reliability in vibration environments needs evaluation

3. Recommended Application Scenarios

H1Z2Z2-K may be applicable in the following scenarios in new energy vehicles:

• ‌Low-voltage Auxiliary Systems‌: such as low-voltage control circuits of on-board chargers (OBC)
• ‌Non-critical Connections‌: lighting systems, low-voltage sensor lines
• ‌Charging Infrastructure‌: connection cables between charging piles and vehicles (confirm power matching)

IV. Comparison with New Energy Vehicle Special Cables

V. Conclusions and Recommendations

1. ‌Main Conclusions‌:

   • H1Z2Z2-K performs excellently in photovoltaic systems and is an ideal choice for photovoltaic component connections
   • Its application in high-voltage main circuits of new energy vehicles is limited, and ‌it is not recommended‌ to directly replace special high-voltage cables
   • It ‌may be applicable‌ in low-voltage auxiliary systems, but specific operating conditions must be strictly evaluated

2. ‌Usage Recommendations‌:

   • Photovoltaic systems: prioritize H1Z2Z2-K for component connections
   • New energy vehicles:
     • High-voltage systems: use special high-voltage cables compliant with ISO 6722 standards
     • Low-voltage systems: H1Z2Z2-K may be considered, but environmental adaptability must be confirmed
     • Charging facilities: select appropriate specifications based on power requirements (≥6mm² recommended for 7kW)

3. ‌Precautions‌:

   • Verify whether voltage and current loads match before use
   • Additional cooling measures are required in high-temperature environments
   • Strengthen fixed protection in vibration environments
   • Shielding measures are recommended for electromagnetic-sensitive occasion