What type of installations are covered in Article 620?

Article 620 of the National Electrical Code (NEC) specifically addresses the requirements for elevators and moving walks. This includes the electrical installations, wiring methods, power supply configurations, and safety measures that must be adhered to when working with these types of equipment. Elevators and moving walks are critical systems in buildings, and the code outlines standards to ensure both their functionality and the safety of personnel using them. This ensures that electrical components are correctly integrated and comply with safety regulations, reducing risks of electrical failures or accidents.

The other choices may involve electrical installations but do not fall under the purview of Article 620. For example, modular data centers are typically discussed in different sections of the NEC, and cranes and hoists often reference Article 610, which covers electric cranes and hoists specifically. Electrified truck parking spaces cover another area related to electrical installations not addressed directly by Article 620. Therefore, the focus of Article 620 is uniquely on elevators and moving walks, which validates the choice regarding its specific coverage.