What type of fixture is indicated for the F-2 fixtures with hash marks in the Veterinary Center drawings?

The designation of F-2 fixtures with hash marks in the Veterinary Center drawings indicates that these fixtures are unswitched. Unswitched fixtures are typically designed to operate continuously without being controlled by a manual switch. This is particularly important in settings like a veterinary center, where consistent lighting is essential for tasks that require a stable environment, such as examinations or surgical procedures. By ensuring that these fixtures remain constantly lit, the facility can maintain proper visibility and hygiene levels.

In this context, the distinction is crucial because switched fixtures would require manual operation, which may not be ideal for the specific needs of a veterinary facility. Additionally, surface-mounted and track lighting refer to the physical installation style and flexibility of the lighting, respectively, rather than the operational characteristics that unswitched fixtures exhibit.