Recently, IFM, an Australian proficiency testing provider, released its proficiency testing analysis report. The National Center for Quality Inspection and Testing of Solar Photovoltaic (PV) Products of CTC (hereinafter referred to as the National PV Center), as a CB laboratory, participated in the proficiency testing for "creepage distance and clearance," and all results were "satisfactory."

Creepage distance and clearance are important indicators for measuring the electrical insulation performance of electronic and electrical products, and are also important safety testing items for electronic and electrical products. Especially in the selection of industrial control products such as relays and switches, it is necessary to comply with relevant standards and, at the same time, set appropriate creepage distances and clearances according to actual usage environment requirements (air pressure, pollution, etc.), so as to safeguard people's lives and property and ensure the stability of electrical performance.

In this proficiency testing, a total of 314 organizations worldwide submitted 381 sets of results and 5,641 independent test results. Among them, 4,896 results were evaluated, 745 results were not evaluated, and 1,084 results were evaluated as outliers, with a satisfaction rate of only 77.8%. Relying on solid technical capabilities and rich testing experience, the testing personnel of the National PV Center, through inspection, comparison, and measurement confirmation of the appearance, pollution degree, and paths of the tested samples, selected and submitted 13 relatively reasonable test parameters, all of which obtained "satisfactory" results.

IFM is a proficiency testing provider designated by the IEC System of Conformity Assessment Schemes for Electrotechnical Equipment and Components (IECEE), and is currently one of the most authoritative organizers of proficiency testing internationally. Successfully passing the IFM international proficiency testing is high recognition and affirmation of the technical capability and management level of the National PV Center, confirming that the National PV Center possesses solid and excellent testing capabilities in this field and has reached the international advanced level. The National PV Center will continue to improve its comprehensive strength, provide customers with more professional and higher-quality services, and support the high-quality development of the photovoltaic industry.