ML20147F077

Revised Proposed Tech Spec Table 4.1-1 & Tech Spec 4.10.1.E.2,requiring Performance of Surveillances Only When Gaseous Chlorine Onsite

ML20147F077
Person / Time
Site:	Rancho Seco
Issue date:	02/25/1988
From:	SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML20147F049	List: ML20147F043 ML20147F077
References
TAC-65256, NUDOCS 8803070231
Download: ML20147F077 (2)

Text

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e. 49 RANCHO SECO UNIT 1

"*,,m TECHNICAL SPECIFICATICIS co Surveillance Standards

• W Table 4.1-1 (Continued) 0 39 INSTRUMENT SURVEILLANCE RE0VIREMENTS co ou Channel Description Check Test Calibrate Remarks .

ou 42. Reactor Building drain

" accumulation tank level NA NA R -l i

oco um 43. Incore neutron detectors M(1) NA NA (1) Check functioning.

00 including functioning of g$'d computer readout and/or num recorder readout.

ow IJ 44. a. Process and area radi-JI ation monitoring system W M Q

b. Containment Area Monitors W NA R

c. Chlorine Detector W(1) M(1) R(1) (1) Only required if gaseous chlorine is on site, excluding calibration gas.

45. Emergency plant radiation Instruments M(1) NA R (1) Battery check

46. Environmental air monitors M(1) NA R (1) Check functioning

47. Strong motion accelerometer Q(1) NA R (1) Battery check

48. Deleted

49. Pressurizer Water Level M NA R

50. Auxiliary Feedwater Flow Rate M NA R

51. Spent Fuel Pool Level W(1) NA R (1) Daily during refueling when moving fuel or control rods.

52. EMOV Power Position Indicator (Primary Detector) M NA R

53. EMOV Position Indicator (Backup Detector) M NA R T/C or Acoustic 54 EMOV Block Valve Position Indicator M NA R

55. Safety Valve Position In-dicator (Primary Detector) M NA R T/C Proposed Amendment No. 7, JI, 54, 60, 9J, 164. Rev. O. Supplement 5 4-7b

RANCHO SECO UNIT 1 i TECHNICAL SPECIFICATIONS l s

Surveillance Standards Soecification (Continued) 4.10.1 C. 2. After reinstallation of the sampled adsorber tray, per C.1:

(a) Verify that the charcoal adsorbers remove 199.5 percent of a halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with ANSI N510 while operating the filter train at a stabilized flow rate of at least 2880 CFM but no greater than 3520 CFM.

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(b) Verify that the HEPA filter bank removes 199.9 percent of the DOP when tested in-place in accordance with ANSI N510 while operating the filter train at a stabilized flow rate of at least 2880 CFM but no greater than 3520 CFM.

D. Started on a manual signal and operated for 15 minutes ir, each 31-day period.

E. Demonstrated operable at least once per refueling interval or once every 18 months, whichever occurs first, by:

1. Verifying that on a high radiation signal, the normal system is automatically isolated and that the emergency filtering system operates.

2. Verifying that on a toxic gas (ammonia excluded) isolation signal, the system automatically switches into the isolation mode of operation with flow through the HEPA filters and charcoal adsorber banks (only required if gaseous chlorine is on site, excluding calibration gas).

3. Verifying that the refrigerant system will maintain the Control Room / Technical Support Center temperature at no more than 80'F for at least 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, flA111 The purpose of the Control Room /TSC Emergency Filtering System is to limit the particulate and gaseous fission products and toxic products to which the Control Room area and Technical Support Center would be subjected during an accidental radioactive or chemical release in or near the Auxiliary Building.

The system is designed with two redundant filter trains each of which consists of a moisture separator, a heater, a high efficiency particulate filter, two banks of charcoal filters, a second high efficiency particulate filter and a booster fan to pressurize the Control Room and Technical Support Center with outside air. The prestabilized air flow rate will not exceed 3750 CFM during the 15 minutes preceding stabilized air flow.

Proposed Amendment No. 39, 70, 97, 164, Rev. O, Supplement 5 4-41b

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