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NABCEP PVIP review questions focus on NEC code compliance (especially Article 690), system design, safety (OSHA), and installation calculations based on the Job Task Analysis (JTA). Key areas include inverter sizing, wire sizing, voltage drop, 120% rule calculations, and mounting requirements.
Key Topics and Sample Question Areas NEC Code Compliance: Questions often test knowledge of the 2017 NEC Article 690 regarding grounding, disconnects, and conductor insulation. Calculations: Expect questions on maximum system voltage, inverter current limits, grounding conductor sizing, and the "120% rule" for bus bar capacity. System Design & Components: Understanding string sizing, voltage temperature coefficients, series vs. parallel configurations, and selecting proper overcurrent protection. Safety and Installation: OSHA safety standards, roof attachment methods, and commissioning procedures.
Also try: NABCEP PV Installer Exam Review Questions
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