Pressure relief devices are considered the last line of defense against overpressure scenarios; they help protect the facility and personnel from a catastrophic event. However, incorrect routing of the relief location may potentially expose not only on-site personnel but also the surrounding residents to a toxic release event. Some facilities may route the relief path to a safe location; this location sometimes is a direct release to the atmosphere off-site. The Process Hazard Analysis (PHA) study sometimes does not have the information to fully evaluate the consequence of the relief event. Without conducting a consequence model of a release event from the relief devices that vent to the atmosphere, it is difficult to evaluate the extent of the consequence to the facility, its personnel, and the community. Raising awareness of the potential hazard from the pressure relief devices can promote the safety and reliability of a facility.

中文翻译：

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泄压位置—隐患

泄压装置被认为是应对超压情况的最后一道防线。它们有助于保护设施和人员免受灾难性事件的影响。但是，救济地点的错误布线可能不仅会使现场工作人员而且还会使周围的居民暴露于有毒物质释放事件中。某些设施可能会将救援路线带到安全的地方。这个位置有时是直接释放到场外的气氛。流程危害分析（PHA）研究有时没有足够的信息来全面评估救济事件的后果。如果不对释放到大气中的泄放装置的释放事件进行后果模型，则很难评估对设施，其人员和社区造成的后果的程度。