Вот, погуглил, время было. Это из требований на проектирование. От хранилища до больницы - oxygen supply line, в больнице - hospital oxygen system.
http://www.va.gov/facmgt/standard/cpro/NatDisasterResistiveDesign.doc3.9 Central Oxygen Services
3.9.1 Earthquake Areas. Design, fabricate, and install bulk oxygen supply and storage facilities, procured on a supply contract basis for the medical center, to resist seismic forces and prevent dislocation and overturning of the liquid oxygen storage tank, standby reserve liquid oxygen tank, or standby reserve liquid oxygen cylinders. Provide four days of liquid oxygen storage in the reserve tank or cylinders. Design the outside oxygen supply line from the bulk storage facility to the hospital’s central oxygen system to minimize disruption from earthquakes and to facilitate repairs.
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