What does it mean when spray application equipment is interlocked?

When spray application equipment is described as interlocked, it means that specific safety measures are in place to ensure proper and safe operation. In this case, the term refers to the requirement for functioning exhaust ventilation to enable the equipment to operate. This safety interlock is crucial because it is designed to prevent the operation of the spray equipment in conditions that could lead to hazardous situations, such as the accumulation of toxic fumes or inhalation of harmful substances.

By ensuring that exhaust ventilation is functioning, the equipment minimizes risks to operators and others in the vicinity by maintaining a safe working environment. This safety feature emphasizes the importance of operational checks before proceeding with spray applications, thereby aligning with industry standards and best practices for workplace safety in environments where hazardous materials are handled.