TRA00185 Flashcards
Reactor Docs for EO
What are the three types of commitments in the UFSAR?
- Design
- Operational
- Institutional Safety Programs
What section of the UFSAR talks about the reactor design?
Chapter 4
What section of the UFSAR talks about experiments?
Chapter 10
Define Core Changes
The manual movement or manipulation of any component within the Core Reflector Tank with two or more FUEL ELEMENTS in the reactor CORE. The manual movement of components (e.g.,SAFETY RODS ) using their normal drive mechanisms is not considered a CORE CHANGE however; movement of these components with their normal drive mechanisms disconnected is considered a CORE CHANGE.
Define Core
The general region in the Reactor Vessel, within the Core Reflector Tank, containing FUEL ELEMENTS, CONTROL RODS, EXPERIMENT irradiation facilities and reflector.
Describe Power Operation
- > 3 MW
- PCS at operating pressure
- EFIS in AUTO
Describe Low Power Operation
- <3 MW
- PCS at operating pressure
- EFIS in AUTO
Describe Pressurized Standby
- 0 MW
- PCS above atmospheric pressure
- EFIS in AUTO
Describe Pressurized Shutdown
- 0 MW
- PCS above atmospheric pressure
- EFIS in MANUAL
Describe Depressurized Operation
- <0.5 MW
- PCS at atmospheric pressure
- EFIS in MANUAL
Describe Depressurized Shutdown
- 0 MW
- PCS at atmospheric pressure
- EFIS in MANUAL
Describe Reactor Defueled
- 0 MW
- PCS at atmospheric pressure
- EFIS not required
What makes up the safety basis and where can it be found?
LST-100 in the front of the UFSAR
What is the purpose of the UFSAR?
Establishes guidelines for any system or subsystem that is required for operation of a facility within the risk accepted by the DOE
What are the barriers to prevent release of radioactive contamination?
Fuel clad
PCS pressure barrier
Confinement
How many modes are there?
Seven
What is CRD-1?
PISAs with active interim controls
What is CRD-2?
Tank lost items list
Sight glass register
PCS leak tracking
What is CRD-3?
PM summaries
What is CRD-4?
QD instruction lists
SWR operational checks
What is CRD-5?
PCS information and sampling schedules
What is CRD-6?
Special shutdown information
What is the purpose of the CSAP?
Assures UFSAR and the TSR for operation are complied with.
What is the Reactor Information Summary (RIS)?
Information for Reactor Startup
What is the Support Information (SI)?
Core Physics data
Fuel element performance
Safety analysis evaluation
Where is the CSAP located?
CRD-15A
What mandates the Experiment Safety Assurance Package (ESAP)?
Mandated by TSR-186 AC 5.7.11
What is the purpose of the CRD-15C Holddown Reactivity Margin Letter?
Assures compliance with TSR 4.5.7.1 “Calculate Holddown Reactivity Margin” for each outage
What is the content of the CRD-15C Holddown Reactivity Margin Letter?
Contains limitations on the reactor core changes that ensure the holddown reactivity margin never becomes less than 6.7$ per the TSR requirements.
What are the limitations for the Holddown Margin letter?
Must meet specific limitations:
1. Minimum of 5 safety rods fully inserted
2. Minimum of 7 pairs of OSCCs fully inserted
3. Minimum of 22 neck shims including reg rods fully inserted
4. IPT water level must be above the top of the active core
When does Holddown Reactivity Margin Letter CRD-15C apply?
- Pressurized Standby with two or more FEs in the core
- Pressurized Shutdown with two or more FEs in the core
- Depressurized Shutdown with two or more FEs in the core
What is the Shift Staffing Requirement on the Reactor Top?
All activities requiring movement of fissile materials to be out of approved fuel storage shall be completed with at least two staff members trained in fissile material handling.
In addition, the SS or designated alternate shall be present to direct fuel handling when more than two FEs are out of approved storage in the canal including canal transfer tube.
Activities requiring movement of fissile material specimens <15 g U-235 shall be completed with at least one staff member trained in fissile material handling
What is the Loop Control Area staffing requirement?
Two EOs required for operation of Bettis loops, gas loops and 2A. Both qualified to operate each other’s station during steady state operations and may relieve each other.
During modes other than reactor operation, remote monitoring of the loop control consoles may be accomplished from the RCR with Ops Manager approval provided an EO can respond as needed.
What material is prohibited from Loops/PCS?
Mercury
Aluminum
Gold/Silver
Low melting point metals
Nickel bearing material
Copper
Halogens
Sulfur
Phosphorus
What is the TSR requirement for Log Count Rate Instruments?
At least one LCRM in the RCR shall be OPERABLE with indication on scale and >2cps DURING:
Pressurized Standby with two or more FEs in the core
Pressurized Shutdown with two or more FEs in the core
Depressurized Shutdown with two or more FEs in the core
Startup until critical
