Pre-Shipment Inspection（PSI）

PSI is the final quality check and confirmation of PV equipment before factory shipment, ensuring products meet order requirements and preventing delivery of non-conforming items.

PSI identifies potential issues before shipment, allowing for rectification, reducing risks of returns, replacements, and project delays due to quality problems, ensuring a smooth supply chain.

• Product Conformity Check Verifying equipment model, specifications, and quantity against order, contract, and design documents.
• Quality & Performance Inspection Sampling or full inspection per standards (e.g., IEC, GB) for appearance (damage, scratches), key parameters (module power, inverter efficiency), and functional integrity (operational tests).
• Packaging & Labeling Check Ensuring packaging meets transport requirements (moisture, shock, compression resistance) and labels are clear and standard (brand, model, parameters, warnings).
• Document Review Confirming completeness and authenticity of shipping documents (Certificate of Conformity, test reports, installation manuals).