EAL

FRS – Emergency Action Levels

Emergency response to accident scenarios requires timely classification of the event to offsite agencies. An EAL is a pre-determined, site-specific, observable threshold for a plant condition that places the plant in an emergency classification level (ECL). FRS equipment and system status provides a direct input to assist in the evaluation and classification of the event according to the emergency action level as described in NEI 99-01 guidance document.

Emergency classification
Each operating nuclear power plant is required to include in its emergency plans a standard emergency classification and EAL scheme. The site emergency response organization reviews the conditions for each recognition category. In the sample status window provided below, the plant is in Power Operation mode; therefore Cold Shutdown and Permanently Defueled categories are automatically disabled because they are not applicable. All other recognition categories have status indicators which will aid in determining ECL. GREEN indicates which recognition categories are in an acceptable status, while YELLOW, ORANGE, or RED indicate a degraded status.
Offsite dispersion conditions
FRS-EAL can also provide a graphical display of offsite dispersion conditions. It can account for wind speed and direction and can be updated to account for current meteorological conditions in its dispersion models. It can also model local topography and large obstructions such as mountains, ridgelines, and structures so a facility can provide the most accurate information as it becomes available. The sample site area map indicates potential radiological conditions for the area around the facility where the public may be affected. Dose estimates are calculated for sectors bounded by the site boundary (~two miles), and five and ten mile emergency planning zones.
Graphical logic updates
As the event develops, the emergency response organization provides input to the Emergency Director who can then compile and log the information obtained from the event. As the results are recorded, graphical logic updates the emergency classification level according to the recognition categories that have been identified as degraded.
Known challenges and systems availability
When applicable, FRS system logic captures the scenario and depicts known challenges and systems availability. FRS roll-up logic provides necessary information to the Emergency Director and the team to efficiently identify the ECL.
Emergency classification
Results of the event are populated to a summary screen which compiles all of the EAL conditions that have been triggered. The ECL is identified based on the results of the worst case scenario for the event (below, the sample event is classified as an Alert). The information inside the application is logged into a report which can be retained as documentation for post-incident critique.

ECL reporting is a regulatory requirement.  FRS-EAL automates the emergency classification level process by assisting with the identification and timely reporting of an undesirable event.  All facilities are different; FRS customizability allows the EAL module to be built using site-specific systems as well as any state and local requirements associated with emergency classification schemes not reflected in NEI 99-01.

PFP - nuclear facility

Facility response

Depicts system and equipment status in user-familiar formats.

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FRS brochure

FRS brochure

Download the Facility Response Simulation (FRS) brochure.

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Customizable FRS

Customizable FRS

Symbols and layouts can be customized to meet user preferences.

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GLASS commercial nuclear

FRS – commercial nuclear

Planning, engineering, rad protection, operations and security.

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FRS RAD

FRS – RAD

Provides real-time evaluation into potential radiation exposures.

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FRS FLEX

FRS – FLEX

Mitigation strategies for beyond-design-basis external events.

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Safe Shutdown

Safe Shutdown

Develop and document safe shutdown fire area strategies.

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