Interlock Defeat

System(s) Affected:
Fire Alarm System

Interlock to be Defeated:
ARIEL Target Hall and Vesda detectors

Implementation:	Number:
Date: 2024-05-31 Time: 07:45:00	2024-283
Implemented By: Eric Chapman
In Consultation With:

Status: Removed

Estimated Duration:
8 hours

Reason for Defeat:
Concrete prep and construction in the ARIEL target hall generating dust. Detectors disarmed at request of Eric Lahe (Remote Handling). Construction to be ongoing ~1 year.

Number of Yellow Tags:
1

Location of Defeat Tag(s):
DCR

How Was Defeat Implemented?
Where is Defeat Located?:
XL graphics, vesda detector 9-094-045, linear beam detectors 9-095-001 and 9-095-002

Describe Alternate Protection:
Firewatch.

Fault Reports:

Work Permits:

Disables:

Interlock Defeat

Removal:	Number:
Date: 2024-05-31 Time: 13:00:00	2024-283
Removed by: Eric Chapman

Status: Removed

Interlock Verification Method:
Devices armed. Node reset with no associated troubles.

Number of Tags Removed:
1

Comments:

Riley Schick-Martin: 2024-05-31 12:49:52.006501
Work is done for the day and will resume on Monday.