Loss of Non-1E Invertor, D-115 cont'd

DOE-HDBK-1099-96

APPENDIX B - EXAMPLE DRILL SCENARIOS

Title:

Loss of Non-1E Invertor, D-115

Drill Number: 062-01

Revision Number: 0

Initial Conditions: MHTS temp less than 450 0F, D-114 must be operating, HTS-S sampling

systems must be in a condition to allow an HTS CIS event, Reactor Cover

Gas Pressure at 10+2" W.G., Loop #1 control must be operable (52040-1),

CH A PAM's must be operable, and at least LLFM A or C must be

operable.

Pre-drill Notifications: Mark space as notifications are made.

Yes

Safeguards and Security

IEM Cell

Precautions and Limitations: No Mode 3 or 4 rod testing in progress. Forced cooling not

required in the IEM Cell.

Operational limits:

Reactor Modes 3 or 4

Technical Safety Requirements: Control Room temperature < 100 0F; Reactor Cover Gas

Pressure >-20 < 40" (Mode 3) or > 0 < 40" (Mode 4); at

lease one LLFM (Mode 3) or two LLFM (Mode 4 fuel

handling in vessel). 17.3.3.4.2 LLFM Operability, 17.3.5.3

Control Room Temperature, 17.3.2.6.c Reactor Cover Gas

Pressure, 17.3.3.4.4 HTS Monitoring Instrumentation,

17.3.3.4.5 Control Room Instrumentation, 17.3.3.3

Post-Accident Monitors, 17.3.2.11 Pressure Transients.

Drill Team Duties: Ensure that actions and responses sufficiently control the casualty.

Evaluator: Monitor procedural usage and trouble-shooting techniques.

Safety Monitor:

Do not allow reactor cover gas pressure or IEM cell pressure to exceed

Emergency Termination limits.

Drill Initiation: Drill Coordinator trips the D-115 AC output breaker and places a 3x5 card on it

stating that the breaker is in a trip-free condition.

B 4-2