Final answer:
Lighting loads in a store are usually considered continuous loads because they typically operate for extended periods, which affects electrical design and circuit rating.
Step-by-step explanation:
The question asks whether lighting loads in a store building are usually considered as continuous loads. The answer is Yes, lighting loads in commercial environments like a store are generally regarded as continuous loads because they are expected to operate for extended periods, typically three hours or more at a time. This is important for electrical design and load calculations, as continuous loads could require circuits to be rated for a higher capacity than non-continuous loads to account for the possibility of higher thermal stresses on the wiring and components.