Technical Differences between Offshore Solar Cables and H1Z2Z2-K Solar Cables

1. Conductor Materials

• Offshore Solar Cables
  • In offshore environments, the choice of conductor materials is crucial due to the presence of saltwater, high humidity, and strong corrosive agents. Copper is a commonly used conductor material for offshore solar cables. High - purity copper offers excellent electrical conductivity, which reduces power loss during electricity transmission. Additionally, to enhance its corrosion resistance, the copper conductors may be coated with special anti - corrosion layers, such as tin plating. This protective layer acts as a barrier between the copper and the harsh marine environment, preventing oxidation and corrosion that could degrade the cable's performance over time.
• H1Z2Z2 - K Solar Cables
  • H1Z2Z2 - K solar cables typically use copper conductors as well. However, the requirements for corrosion resistance may not be as stringent as those for offshore cables. In normal on - shore solar installations, where the environmental conditions are relatively milder, the standard copper conductors without the extra - heavy anti - corrosion coatings can still provide reliable electrical conductivity. The focus for these cables is more on meeting the basic electrical performance requirements at a reasonable cost.

2. Insulation and Sheathing Materials

• Offshore Solar Cables
  • The insulation and sheathing materials of offshore solar cables need to withstand extreme environmental conditions. Ethylene - propylene rubber (EPR) or cross - linked polyethylene (XLPE) are often used as insulation materials. EPR has excellent resistance to heat, moisture, and chemicals, which are common challenges in the offshore environment. XLPE, on the other hand, offers high dielectric strength and good mechanical properties, ensuring reliable insulation even under high - voltage conditions.
  • For the sheathing, materials like polyurethane (PU) or high - density polyethylene (HDPE) with enhanced protection features are employed. These materials are resistant to abrasion, impact, and saltwater corrosion. They also have good weathering resistance, protecting the cable from UV radiation and ozone damage over long - term exposure.
• H1Z2Z2 - K Solar Cables
  • H1Z2Z2 - K solar cables usually use polyvinyl chloride (PVC) or cross - linked materials for insulation. PVC is a cost - effective option that provides basic insulation properties. The sheathing of H1Z2Z2 - K cables is often made of a PVC - based compound. While it offers some protection against environmental factors, it may not be as robust as the materials used in offshore cables. For example, PVC may be more prone to degradation under prolonged exposure to UV light or in high - humidity environments compared to the materials used in offshore cables.

3. Electrical Performance

• Offshore Solar Cables
  • Offshore solar cables are designed to handle long - distance power transmission from offshore solar farms to on - shore substations. They need to have low electrical resistance to minimize power losses during transmission. This requires precise control of the conductor cross - sectional area and the quality of the insulation materials. Additionally, offshore cables may need to operate at higher voltages to efficiently transmit large amounts of power over long distances. As a result, they are designed to have high dielectric strength to prevent electrical breakdown.
• H1Z2Z2 - K Solar Cables
  • H1Z2Z2 - K solar cables are typically used in on - shore solar installations, where the distances for power transmission are relatively shorter. They are usually designed for lower - voltage applications, such as connecting solar panels to inverters or other components within a solar power system. While they also need to meet certain electrical performance standards, the requirements for low resistance and high dielectric strength may not be as demanding as those for offshore cables.

4. Mechanical Properties

• Offshore Solar Cables
  • In the offshore environment, cables are exposed to strong ocean currents, waves, and wind. Therefore, offshore solar cables need to have high mechanical strength and flexibility. They are designed to withstand tensile forces during installation and operation, as well as bending and torsion without damage. Special reinforcement layers may be added to the cable structure to enhance its mechanical properties. For example, steel wire armoring can be used to provide additional protection against external forces and to prevent the cable from being damaged by sharp objects on the seabed.
• H1Z2Z2 - K Solar Cables
  • H1Z2Z2 - K solar cables are installed in relatively stable on - shore environments. They do not need to withstand the same level of mechanical stress as offshore cables. While they still need to have some degree of flexibility for easy installation, the requirements for high - strength and impact - resistant design are less critical.

FAQ

• Q: Can H1Z2Z2 - K solar cables be used in offshore solar installations?
  • A: Generally, it is not recommended. H1Z2Z2 - K solar cables are not designed to withstand the harsh environmental conditions in the offshore area, such as saltwater corrosion, strong waves, and high - energy ocean currents. Using them in offshore installations may lead to premature cable failure and pose risks to the safety and performance of the solar power system.
• Q: Are offshore solar cables more expensive than H1Z2Z2 - K solar cables?
  • A: Yes, offshore solar cables are usually more expensive. The use of high - quality conductor materials with anti - corrosion coatings, advanced insulation and sheathing materials, and additional reinforcement layers for mechanical protection all contribute to the higher cost of offshore solar cables compared to H1Z2Z2 - K solar cables.

Hualan Technology was founded in 2020, is a collection of solar accessories production, sales, research and development and service as one of the high - tech enterprises. At present, the business covers the production and sales of solar photovoltaic cables, photovoltaic cable connectors, photovoltaic BIPV special wiring harness adapters and photovoltaic link applications.

Both offshore solar cables and H1Z2Z2 - K solar cables are important products in the solar energy field. Hualan Technology may need to consider the technical differences between them when developing and producing relevant solar cable products to meet the diverse needs of different solar energy projects.