What is a common method of protection used in substations?

Establishing an emergency plan zone (EPZ) is a critical method of protection used in substations. An EPZ involves setting up designated areas to ensure the safety of both personnel and equipment during emergencies, such as equipment failures or hazardous material spills. This proactive approach enables quick evacuation or management of emergency situations, minimizing risks to individuals and the surrounding environment.

By defining the boundaries and protocols for the EPZ, substations can create a structured response to potential incidents, helping to facilitate effective communication and coordination among emergency responders. Such a plan is essential for maintaining safety and mitigating impacts during unexpected events, which is why it is commonly regarded as a vital safety measure in the operational context of substations.