DOE 2000. - Waste Isolation Pilot Plant - U.S. Department of Energy

WIPP RH PSAR DOE/WIPP-03-3174 CHAPTER 4
Table 4.8-1 Human Factors Evaluation Requirements of Design Class II/IIIA SSCs Page 4 of 7
Table 4.1-1 Description
Functional
Allocation
System/Component
Design
Class
UNDERGROUND VENTILATION SYSTEM (SDD-VU00)
Design Class Function
Human Errors Impacting
Safety Function
(Excluding Design,
Maintenance, and Testing)
and Consequence.
Human
Factors
Screening
Results
Exhaust duct elbow at the top of the
Exhaust Shaft
II
Design Class Interface.
(Channels exhaust air to the EFB)
Passive Mechanisms None Adequate
HEPA Filters and Isolation Dampers II Control of radioactive effluent Passive Mechanisms None Adequate
Exhaust Fans for the filtration mode
II
Design Class Interface.
(Channels exhaust air through the
EFB)
Passive Mechanisms None Adequate
Exhaust System Instruments and
Hardware
IIIA
Design Class Interface.
(Supports Exhaust Filtration
System)
Passive Mechanisms None Adequate
(6) High Pressure Fans for Bulkhead 309
(Pressure Chamber)
IIIA
Maintain buffer zone between
RMA and non-RMA
Passive Mechanisms None Adequate
WASTE HANDLING EQUIPMENT (SDD-WH00)
Facility Cask II Provides permanent shielding Passive Mechanisms None Adequate
25-Ton Crane - CUR IIIA Failure could cause radioactive
materials release
Active - In use
manual
Failure could lead to
initiating event for RH
Accident Release
Adequate
Telescoping Port Shield II Provides permanent shielding Passive Mechanisms None Adequate
Shield Bell II Provides permanent shielding Passive Mechanisms None Adequate
CUR Floor Shield Valve II Provides permanent shielding Passive Mechanisms None Adequate
Hot Cell Shield Valve II Provides permanent shielding Passive Mechanisms None Adequate
4.8-7 January 28, 2003