Article 550 relates to which of the following?

Article 550 of the National Electrical Code (NEC) specifically addresses the requirements for mobile homes and manufactured homes. This article covers essential standards and guidelines to ensure the safe installation and use of electrical systems within these types of dwellings. It outlines provisions for electrical service, grounding, branch circuits, and other critical aspects that help safeguard the occupants and the structure from electrical hazards.

Understanding the application of this article is vital for electricians and inspectors who work with mobile and manufactured homes, as it differentiates these installations from standard residential properties and emphasizes unique considerations required for their compliance with the NEC.