Term
ASDS
Describe the design basis of ASDS. |
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Definition
-Satisfy safe shutdown requirements.
-Cladding temp limited to < 1500F.
-Primary pressure < 1332# steam dome pressure.
-Primary containment pressure < 62#.
-Primary containment temperature low enough for NPSF for Torus as a water source. |
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Term
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Definition
-RPS is not part of ASDS.
-Can insert control rods at ASDS by depressurizing the SCRAM air header. |
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Term
ASDS
Describe coolant inventory control with ASDS. |
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Definition
-Manual operation of SRVs (E,F,G,H).
-Manual operation of 12 core spray pump. |
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Term
ASDS
Describe decay heat removal from ASDS. |
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Definition
-All supplied from TORUS.
-Torus is suction supply for core spray.
-Torus is where SRVs discharge to.
-Torus cooled in Torus cooling mode. |
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Term
ASDS
Describe transfer of power to ASDS. |
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Definition
-Master switch supplies power to ASDS panel.
-Must use seperate power switch on ASDS panel for each system (SRVs, 12EDG, MSIV outboards, CS, and RHR).
-All interlocks and manual operation from control room are blocked. |
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