For what reason must DPV rooms be lighted?

The correct choice highlights the essential role of lighting in DPV (Double Check Valve Assembly) rooms for safety during maintenance. When maintenance personnel are working in these rooms, sufficient lighting is critical to ensure they can see clearly and perform their tasks safely. Poor visibility could lead to accidents, such as trips or falls, and could hinder their ability to identify and address potential issues with the valves or associated equipment.

Good lighting not only helps in recognizing equipment and tools but also assists in spotting leaks or malfunctions that may be difficult to see in dim light. By ensuring that these rooms are well-lit, the safety of the personnel working in them is prioritized, which is crucial for maintaining an efficient and safely operated sprinkler system.

While aesthetic purposes and legal compliance may be considerations in certain scenarios, they do not hold the same level of priority in relation to ensuring the immediate safety of maintenance operations. Preventing equipment failure can be a benefit of good lighting through better visibility, but safety during maintenance is the primary reason for having adequate lighting in these areas.