Which Article in the National Electrical Code pertains to park trailers?

The correct article that pertains to park trailers is indeed Article 552. This article specifically addresses the requirements for the installation of electrical systems in park trailers, which are designed for temporary or seasonal use and can be found in recreational vehicle parks or campgrounds. Article 552 outlines the necessary provisions for safely supplying and utilizing electrical power in park trailers, including wiring methods, equipment, grounding, and other safety considerations essential for the unique nature of these setups.

Understanding the context of park trailers is crucial, as they often require different considerations compared to traditional residential wiring due to their mobility and the type of use they commonly see. This distinct classification necessitates tailored regulations to ensure safety and compliance within such environments.

While other articles, like Article 551, focus on recreational vehicles, Article 553 pertains to special requirements for mobile and temporary installations, and Article 590 covers temporary installations more broadly, none of these provide the specific guidelines dedicated to park trailers like Article 552 does.