Which NEC Article focuses on the installation requirements for marinas?

The correct focus on Article 555 is important as it specifically addresses the installation requirements for electric equipment in marinas and similar locations. This article outlines safety practices and standards tailored to the unique conditions found in marine environments, including considerations for water exposure, corrosion resistance, and the types of electrical equipment permitted.

Article 555 provides detailed guidelines on the proper installation and maintenance of electrical systems to ensure safety and functionality in marinas, which often involve complex electrical setups due to the presence of water and various types of structures like docks and piers. Compliance with this article helps mitigate risks associated with water and electricity, protecting both individuals and property.

In contrast, while Article 590 deals with temporary installations and may be relevant in certain contexts, it does not specifically focus on marinas. Article 551 addresses the requirements for mobile homes and recreational vehicles, which do not pertain to the marine environment. Article 604 is related to cable trays and does not cover the particular considerations necessary for marina installations. Thus, the emphasis on safety and specificity in Article 555 makes it the right choice for understanding electrical installations in marinas.