What is a critical requirement for the ammunition storage box of powder-actuated tools?

The critical requirement for the ammunition storage box of powder-actuated tools being that it must not be near heat sources is based on safety protocols designed to prevent accidents and ensure safe handling. Storing ammunition near heat sources could lead to dangerous situations, including the potential for the ammunition to ignite or explode if exposed to high temperatures. This is essential for maintaining a safe working environment at construction sites, where various hazards are present.

By ensuring that ammunition is stored away from heat sources, the risk of ignition due to environmental factors is minimized. This preventative measure is part of the broader safety practices aimed at reducing accidents associated with construction tools that utilize explosive power sources, particularly in settings where volatile materials are also present.