How should escalator components be stored prior to installation?

Storing escalator components in a dry, protected environment is crucial to prevent damage and ensure their integrity before installation. A controlled environment protects the components from moisture, which can lead to corrosion and deterioration of materials. This is particularly important for metal parts, which can rust, and for electrical components that may suffer from humidity-related issues.

Additionally, a protected environment shields components from physical damage or contamination from dust, debris, and other environmental factors that could compromise their functionality and performance once installed. Proper storage not only helps maintain the quality of the components but also supports the safety and reliability of the escalator once it is in operation.

In contrast, conditions such as wet and humid environments, exposure to sunlight, or open construction sites are not suitable. These can lead to various forms of damage, including moisture damage, UV degradation, and risk of physical impact, making option B the most appropriate choice for ensuring the longevity and performance of escalator components.