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NEC Article 517 covers health care facilities, including hospitals, clinics, and nursing homes. It details requirements for critical branch circuits, life safety systems, patient care areas, and isolated power systems. Journeyman electricians must be familiar with Article 517 when working in medical facilities to ensure life-safety and compliance with strict standards.

NEC Article 220.84 provides demand factors for apartment or multifamily dwellings. Applying 100% of the first 10 kVA and 40% of remaining loads allows for safe sizing of feeders and service conductors while accounting for diversity in simultaneous use. Journeyman electricians must accurately calculate loads to prevent overloading.

Only enough insulation should be removed so the bare conductor fits completely under the terminal with no copper exposed. Exposed conductor increases shock and short-circuit hazards. Journeyman electricians must ensure terminations are neat, secure, and compliant with NEC requirements.

A conduit bender allows electricians to shape EMT or rigid conduit to required angles without damaging the pipe. Accurate bends are critical for maintaining wire fill, code compliance, and aesthetic installation. Journeyman electricians must calculate the correct take-up and stub measurements for each bend.

NEC Chapter 5 covers special occupancies, including hazardous locations (Article 500), health care facilities (Article 517), and assembly occupancies. Journeyman electricians must be familiar with this section to ensure compliance in specialized environments where risk is elevated.