As global solar installations continue to grow, solar power systems require higher cable reliability. For PV cable manufacturers, choosing the right PV cable compound is not only a material decision. It directly affects certification approval, production efficiency, and long-term service stability for 25 years or more.
As a professional PV cable compound supplier, we provide：
Irradiation crosslinked XLPE / irradiation XLPO systems
Silane crosslinked polyolefin systems (Silane XLPE)
These solutions support different production conditions and cable structure designs.
This article explains how different crosslinking systems match real PV cable manufacturing needs.
PV DC cables operate under continuous DC load, high temperatures, strong UV exposure, and daily temperature changes. The design life is usually more than 25 years.
Standard thermoplastic materials may soften and deform under long-term heat. This can affect insulation thickness stability and electrical safety.
Crosslinked polyolefin forms a three-dimensional network structure. This structure improves:
·Heat resistance
·Dimensional stability
·Resistance to environmental stress cracking
·Long-term aging performance
For modern PV cables, crosslinking has become a basic requirement.
Irradiation XLPE is crosslinked after extrusion by electron beam exposure. The crosslink density is controlled by the irradiation dose. The process is stable and repeatable.
125℃/ 150℃ temperature ratings available
·Uniform crosslinking and stable performance
·Accurate diameter control, suitable for thin wall structures
·No peroxide residue
·Stable insulation performance under DC conditions
·High-end TÜV certified PV cables
·Products with strict outer diameter control
·Automated large-scale production lines
·Export projects
For manufacturers with irradiation equipment, or access to irradiation processing services, this system provides strong product consistency.
Keywords: silane crosslinked polyolefin, Silane XLPE, silane crosslinked PV cable compound
Silane crosslinked materials cure through moisture. After extrusion, crosslinking takes place in water or steam.
Main advantages:
·No irradiation equipment required
·Compatible with standard extrusion lines
·Lower equipment investment
·Suitable for flexible production with multiple specifications
·Medium-scale manufacturers
·Production lines with many cable sizes
·Cost-sensitive projects
90℃/ 105℃/ 125℃ temperature grades available
The silane system ensures reliable basic performance while offering high production flexibility.
As a professional PV cable compound supplier, we can design material combinations based on cable structure.
The insulation uses irradiation XLPE.
The sheath uses silane crosslinked XLPO.
This solution balances performance and cost. It is suitable for mid-to-high-end PV cables.
Both insulation and sheath use silane crosslinked materials.
The production line setup is simple.
No irradiation equipment is required.
This option is suitable for product lines with many specifications.
This solution is for high-end products.
It offers higher temperature ratings and better diameter control.
It is suitable for projects with high reliability requirements.
When selecting solar PV cable materials, manufacturers should consider:
If irradiation equipment is available, the irradiation system provides better consistency.
If not, the silane system is more economical.
Large-scale production of one specification is suitable for the irradiation system.
Multiple specifications in small batches are more suitable for the silane system.
Some high-level certification projects require strong material consistency.
In such cases, irradiation systems may offer better stability.
We provide:
125℃/ 150℃ irradiation crosslinked XLPE compounds for PV cable insulation and sheath；
105℃/ 125℃ silane crosslinked XLPE compounds for PV cable insulation and sheath；
Formulations can be adjusted to meet different regional standards.
Product features:
·Stable extrusion performance
·Smooth surface finish
·Easy processing
·Stable long-term aging performance
·High batch consistency
·Compliance with PV cable requirements in many countries
