NIHI C-107 Commercial Electrical Inspections

Learning Objectives

By the end of this module, students will be able to:

• Differentiate between residential and commercial electrical systems in terms of design, capacity, and safety.
• Identify and describe the function of key electrical components, including service panels, transformers, switchgear, and low-voltage systems.
• Recognize common installation issues, deferred maintenance indicators, and safety violations during commercial inspections.
• Evaluate the presence and functionality of emergency power systems including generators, UPS units, and ATS equipment.
• Apply a systematic inspection methodology to assess grounding, wiring, lighting, and receptacle systems.
• Understand limitations of visual-only inspections and appropriately document deficiencies for referral.