Interlock Defeat

System(s) Affected:
Other / Misc

Interlock to be Defeated:
STF High Level switch bypassed.

Implementation:	Number:
Date: 2024-10-04 Time: 14:17:00	2024-477
Implemented By: Elena Bylinskaia
In Consultation With:

Status: Removed

Estimated Duration:
3 hours

Reason for Defeat:
Water pump turned on. Water flow and level has to stabilize.

Number of Yellow Tags:
1

Location of Defeat Tag(s):
B2 level STF Interlock Bypass rack.

How Was Defeat Implemented?
Where is Defeat Located?:
Byp-03 pinned at STF interlock unit.

Describe Alternate Protection:
High-High level warn is active.

Fault Reports:

Work Permits:

Disables:

Interlock Defeat

Removal:	Number:
Date: 2024-10-07 Time: 23:42:00	2024-477
Removed by: Sierra Dean

Status: Removed

Interlock Verification Method:
Verified that XT Page 2C4 shows signal no longer defeated.

Number of Tags Removed:
1

Comments:

Sierra Dean: 2024-10-07 23:52:25.240998
Fault #17435 active, which states that the HIGH-HIGH water switch failed, which is the alternative protection listed for this defeat.
Elena Bylinskaia: 2024-10-04 14:22:14.206071
At the request of Steve Sapriken.