ML20128G113
| ML20128G113 | |
| Person / Time | |
|---|---|
| Site: | University of Texas at Austin |
| Issue date: | 01/29/1993 |
| From: | TEXAS, UNIV. OF, AUSTIN, TX |
| To: | |
| Shared Package | |
| ML20128G112 | List: |
| References | |
| NUDOCS 9302120155 | |
| Download: ML20128G113 (2) | |
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_ Revision 1 Technical Specifications 3.2 Beactor Control and Safety System 3.2.1 Control Assemblics Specification (s)
The reactor shall not be operated unless the control rods are operable, and
- a. Control rods shall not be operable if damage is apparent to the rod or drive assemblies.
- b. The scrsm time measured from the instant a simulated signal reaches the value of a limiting safe ty system setting to the instant. that the slowest scrammabl: control rod reaches its full;i inserted position shall not exceed 1 second,
- c. Maximum reactivity insertion rate of a standard control rod shall be less than 0.2% Ak/k per second.
3.2.2 Reactor Control System Specification (s)
The reactor shall not be operable unless the minimum safety interlocks are operable.
The following control system safety interlocks shall be operable:
Interlocks Number Effective Mode Rod Drive Control Operable Function Manual
- Pulse
- a. Startup Withdrawal 4
prevent rod X
Standard control rods withdrawal far Transient control rod less than 2 counts per see
- b. Simultaneous Withdrawal 4 prevent rad X
Standard control rods withdrawal for Transient control rod two or more rods
- c. Non pulse condition 1
prevent withdrawal X Transient control rod for drive not down except square-wave
- d. Pulse Withdrawal 3
prevent withdrawal
-X Standard control rods of non pulse rods
- e. Transient Withdrawal 1
prevent rod X
Transient control rod withdrawal for more than 1 kilowatt power
- Manual mode includes Auto and Squarn Wave modes 12/90 Page 14 9302120155 930129 PDR ADOCK O$000602 PDR p
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Revision 1l Technical Specifications
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3.2 Reactor Control and Safety System 3.2.1 Control Assemblies Specification (s)
The reactor shall not be operated unless the control rods are operable, and
- a. Control rods shall not be operable if damcge is apparent to the rod or drive assemblies,
- b. The scram time measured from the instant a simulated - signal reaches the value of a limiting safety system setting to the instant that the slowest scrammable control rod reaches its fully inserted position shall not exceed 1 second.
- c. Maximum reactivity insertion rate of a standard control rod shall be less than 0.21 Ak/k per second.
3.2.2 Reactor Control System Specification (s)
The reactor shall not be operable un10.;a the minimum safety interlocks are operable. The following control system safety interlocks shall be operable:
Interlocks Number Effective Mode
__ Rod Drive Control Operable Function Manual
- Pulse
- a. Startup Withdrawal 4(4)** prevent rod X
Standard cont il rods withdrawal for Transient control rod less than 2 counts per see
- b. Simultaneous Withdrawal 4(3)** prevent rod X
Standard control rods withdrawal for Transient control roo two or more rods
- c. Non pulse condition 1
prevent withdrawal X Transient control rod for drive not down j
except square wave
- d. Pulse Withdrawal 3
prevent wit'.drawal X
Standard control rods of non pulse rods
- e. Transient Withdrawal 1
prevent rod.
X Transient control rod withdrawal for more than 1 kilowatt power
- Manual mode includes Auto and Square Wave modes
- (a) includes regulating rod in Auto and Square Wave modes
- (b) excludes regulating rod in Auto and Square Wave modes 12/90 amendment 1/93 Page 14'
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