Term
Rad Mon
Describe where CAMs are located. |
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Definition
-1 at recombiner.
-1 at offgass.
-8 mobile and semimobile. |
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Term
Rad Mon
Describe the main steam line rad monitors. |
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Definition
-Tip MVP and close MVP suction valves at 6r/hr.
-1 of 2 logic.
-A&C RPS bus A.
-B&D RPS bus B. |
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Term
Rad Mon
Describe the off gas pretreatment monitors. |
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Definition
-Trips SJAE second stage inlet (AO-1085A/B) and recombiner outlets (AO-7557A/B) after 30 minute time delay.
-Trips on 2 signals upscale/downscale/combination.
-Channel A is RPS bus A.
-Channel B is RPS bus B.
-30 minute timer is Y10.
-Trip relays is 24Vdc div I. |
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Term
Rad Mon
Describe the stack WRGMs. |
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Definition
-Cause a stack isolation (CV-1928/2353 &SV-7677).
-Monitor Noble gas radioactivity level of effluent gas discharge.
-Channel A is Y70.
-Channel B is Y80. |
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Term
Rad Mon
Desbribe the RB vent WRGMs. |
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Definition
-Select to any vent plenum.
-Has alarms.
-Channel A Y70.
-Channel B Y80. |
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Term
Rad Mon
Describe the process liquid rad monitors. |
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Definition
-RBCCW.
-SW.
-Rad Waste (not utilized).
-Discharge canal (2 channels).
-TB normal waste sump (2 channels).
-Only normal waste sump has trips (trips pumps). Y-30/10 A/B. |
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Term
Rad Mon
Describe the vent plenum monitors. |
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Definition
-Isol sec containment, starts SBGT, EFT hi rad mode, MVP trip and isolation, off gas storage vent to recirc, AO-2982 close, V-EF-26 discharge to plenum.
-26mrem/hr, 1 high or 2 lo (.1).
-A/B RPS bus A/B.
-Loss of power is false high. |
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Term
Rad Mon
Describe the fuel pool monitors. |
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Definition
-Isolates sec containment, starts SBGT, EFT hi rad mode, MVP trip and iso, off gas storage vent to recirc, AO-2982 close, V-EF-26 discharges to plenum.
-1 high at 50mrem/hr or 2 lo .1mrem/hr.
-Channels A/B powered by RPS bus A/B.
-Loss of power is false high. |
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Term
Rad Mon
Describe teh CRV-EFT monitors. |
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Definition
-Air intake at 250Vdc battery.
-Hi-Hi at 1mr/hr on either channel causes high rad mode in EFT.
-Alarm at .5mr/hr.
-Channels A/B powered by MCC-134/144. |
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Term
Rad Mon
Describe the drywell particulate monitor. |
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Definition
-Isolates on Gr II.
-Powered by L-28.
-Discharges to plenum or TORUS. |
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Term
Rad Mon
Describe the sewer lift station monitor. |
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Definition
-Alarms and trips pumps on high rad.
-Failure or loss of power disables pumps. |
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Term
Rad Mon
Describe the hard pipe vent monitor. |
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Definition
-Monitors effluent from TORUS.
-Powered by Y80. |
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Term
Rad Mon
Describe radiation w/HWC. |
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Definition
| -HWC rate increased rases levels in steam chase, condenser hot side, turbine operating floor, SJAE room, and recombiner by 3-5 times. |
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Term
Rad Mon
Describe loss of Y10. |
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Definition
-Norm waste sump monitor Hi/Inop alarm.
-Loss of trip function for preconditioning monitor (man trip after 30mins).
-Off gas stack iso valves fail open and will not close on stack WRGM high rad.
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Term
Rad Mon
Describe loss of Y20. |
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Definition
-Lose ARM indication.
-Lose rad monitoring from recombiner instrument and pump room. |
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Term
Rad Mon
Describe loss of Y30. |
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Definition
Get TB norm wast sump monitor Hi/inop alarm.
-Lose indication of normal waste sump rad and radwaste release to canal. |
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Term
Rad Mon
Describe loss of Y70. |
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Definition
-Drywell cam trouble due to Gp II isolation.
-Lose DW rad mon 'A'.
-Stack effluent and RBV effluent alarms.
-Loss of stack and RBV indications. |
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Term
Rad Mon
Describe loss of Y80. |
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Definition
-Drywell cam trouble due to Gp II iso.
-Loss of DW rad mon 'B'.
-Stack effluent and RBV effluent alarms.
-Loss of stack and RVB indications.
-Loss of HPV indications. |
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