Table 5-1. Representative equipment found in tritium facilities

DOE-HDBK-1129-99

equipment. The SEP is designed to be an extremely cost-effective method of enhancing the

seismic safety of facilities and reducing the potential for major economic loss that can result from

equipment damaged by an earthquake.

The following is a suggested list of topics to consider in the design of new systems and equipment

or the evaluation of existing systems and equipment. Representative equipment that may be

found in tritium facilities is listed in Table 5-1.

The PC for each system or component to be reviewed must be defined, (PC 1, 2, 3, or 4) in the

Seismic Equipment List (SEL). The methodology and procedures for evaluating the seismic

adequacy of equipment described in the SEP are based on the observed performance, failure, and

response of various types of SSCs during and after they were subjected to either actual or

simulated earthquake motion. An SSC in a DOE facility can be evaluated for seismic adequacy

provided that the associated guidelines, limitations, requirements, and caveats described in the

SEP are satisfied.

TABLE 5-1. Representative equipment found in tritium facilities

ELECTRICAL EQUIPMENT

MECHANICAL EQUIPMENT

Batteries on Racks

Fluid-Operated / Air-Operated Valves

Motor Control Centers

Motor/Solenoid-Operated Valves

Low- and Medium-Voltage Switchgear

Horizontal Pumps

Distribution Panels

Vertical Pumps

Transformers

Chillers

Battery Chargers and Inverters

Air Compressors

Instrumentation and Control Panels

Motor-Generators

Instruments on Racks

Engine-Generators

Temperature Sensors

Air Handlers

Computer Data / Storage Systems

Fans

Alarm Instrumentation

HEPA Filters

Communications Equipment

Gloveboxes

PIPING AND RACEWAY SYSTEMS

Miscellaneous Machinery

ARCHITECTURAL FEATURES

Cable and Conduit Raceway Systems

Piping

Unreinforced Masonry (URM) Walls

HVAC Ducts

Hollow Clay Tile Walls

Underground Piping

Suspended Ceilings

Underground Raceways

Raised Floors

Stacks

Storage Racks

Conveyors of Material

Cranes

TANKS

Elevators

SWITCHYARD AND SUBSTATION EQUIPMENT

Vertical Tanks

Horizontal Tanks and Heat Exchangers

Power Transformers

Underground Tanks

Miscellaneous Equipment

Canisters and Gas Cylinders

Miscellaneous Tanks

The general approach for the development of the SEL is envisioned to be a three-step process as

depicted in Figure 5-1. After a SEL Team is selected, the first step of the process is the

development of the preliminary SEL from a list of the facility SSCs. The SEL Team consists

primarily of safety professionals and systems engineers with assistance from seismic engineers

and facility operators. Only a portion of the facility SSCs will be contained in the SEL and, in many

cases, the SEL will contain only safety-related SSCs that must function during or after a seismic

event. The selection of the SSCs belonging on the SEL should be based on the results of accident