The emergence of 1.5 Kv PV systems is a major industry trend that offers efficiency improvements and potential system cost reduction. However, the transition from 1.0 Kv to 1.5 Kv systems is also leading to more-stringent performance and safety standards for all components. The main requirement is high CTI performance (UL PLC0 and IEC MG 1) to withstand 1,500 system volts without breaking down. Other properties are also critical, including ductility under exposure to very cold outdoor temperatures.
New LNP EXL9334P copolymer resin delivers high performance in all key properties needed for 1.5 Kv components, compared to competitive materials that fall short in certain respects like dimension and impact.
In addition to achieving a high CTI (UL PLC0 and IEC MG 1), the SABIC material provides low-temperature impact down to -40°C, good weatherability (UL 746C f1 listing) and good dimensional stability. This new product also meets the UL94 V0 standard for flame retardance at 1.2mm and delivers long-term heat resistance.
"Developing a flame-retardant copolymer that could achieve the highest CTI level was difficult, but our experts were up to the challenge," said Jenny Wang, Director, Formulation and Application, APAC, SABIC. "The SABIC team combined innovative thinking with technical expertise and successfully developed LNP EXL9334P resin, which meets the most demanding requirements across the board. Our efforts have been validated by customers during material trials. They are happy with its properties, particularly its signature impact resistance at extremely cold temperatures, which help solve their problems. We'll continue to work on new solutions to support the high growth and new technology of the solar photovoltaic industry."
New LNP EXL9334P copolymer resin is globally available.