Plant emergencies activation mechanism

Process control plays an important role in how a plant process upset can be controlled and subsequent emergency actions executed. Without adequate and reliable process controls, an unexpected process occurrence cannot be monitored, controlled and eliminated. Process controls can range from simple manual actions to computer logic controllers, remote from the required action point, with supplemental instrumentation feedback systems. These systems should be designed such as to minimize the need to activate secondary safety devices. The process principles, margins allowed, reliability and the means of process control are mechanisms of inherent safety that will influence the risk level at a facility. 

A certain minimum stock level of items for emergency use shall always be maintained in the plant storage yard/storeroom (near the control room) in consultation with senior chemical, mechanical, and electrical engineers. The quantities shall be sulficient to keep the plant activities running till next supplies are procured and brought from the central main stores. 

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