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|  DOE-HDBK-6004-99
Combined Loads
Considerations for combined loads are indicated in Table I-1.
Table I-1 Combined Loads
Hydraulic
Thermal
Electro-
magnetic
Plant Condition
Static
Norm.
Trans.
Norm.
Trans.
Norm.
Fault
Nat.
Miss.
Cyc
Phen.
Imp.
Normal Operation
X
X
X
X
X
Maintenance
X
X1
X1
Design Basis
Accidents
Internal Initiators
1. Coolant Leak in
X
X
X
X
Vacuum Vessel.
2. In-cryostat Leak
X
X
X
X
3. Out-of-cryostat
X
X
X
X
Leak
4. Loss of Pumping
X
X
X
X
5. Loss of Flow
X
X
X
X
6. Loss of Heat Sink
X
X
X
7. Missile or Pipe
X
X
X
X
X
X
X
X
Whip
8. Increase in Fusion
X
X
X
Power
9. Human Error or
X
X
X
X
X
X
Control Fault
External Initiators
1. Natural
X
X
X
X
X
X
X
X
X
Phenomena
2. Fires
X
X
X
X
X
X
X
3. Aircraft or Missile
X
X
X
X
X
X
X
X
Impact
Beyond Design Basis
Accidents2
1. Pressure and thermal loads are applicable for portions of system which remain pressurized during maintenance.
2. There are no load combinations for beyond-design-basis accidents.
6
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