This Solar PV array audit checklist supports planned preventive maintenance of rooftop and ground mounted systems. It guides technicians through site details, access safety, cleanliness, array inclination and orientation, and weather or irradiance conditions. AC side checks include PV distribution board, meter operation and fault codes, G59 relay response and reset, labeling and main switch identification, and breaker ratings. Inverter inspections cover location and mounting, AC and DC isolators, identification of strings, data plate photos, production readings, and fault logs. DC side tasks verify module data plates, mounting and earth bonding, junction box warnings, fuses, connector uniformity, cable protection and management. Record string IDs, open circuit voltage, module counts, issues found, corrective actions, photos, and final operational status.
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