ML20084C813
| ML20084C813 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 04/17/1984 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Philadelphia Electric Co, Public Service Electric & Gas Co, Delmarva Power & Light Co, Atlantic City Electric Co |
| Shared Package | |
| ML20084C816 | List: |
| References | |
| DPR-44-A-097, DPR-56-A-099 NUDOCS 8404300299 | |
| Download: ML20084C813 (9) | |
Text
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UNITED STATES 4
NUCLEAR REGULATORY COMMISSION e
o aj WASHINGTON, D. C. 20555 s
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PHILADELPHIA ELECTRIC COMPANY PUBLIC SERVICE ELECTRIC AND GAS COMPANY DELMARVA POWER AND LIGHT COMPANY ATLANTIC CITY ELECTRIC COMPANY DOCKET NO. 50-277 PEACH BOTTOM ATOMIC POWER STATION, UNIT NO. 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 97 License No. DPR-44 1
1.
The Nuclear Regulatory Comission (the Comission) has found.that:
A.
The application for amendment by Philadelphia Electric Company, et al. (the licensee) dated December 22, 1977, as supplemented July 29, 1983 complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Comission's rules and regulations set forth in 10 CFR Chapter I; B.
The facility will operate in conformity with the application, the provisions of the Act, and the regulations of the Comission; C.
There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Comission's regulations; D.
The issuance of this license amendment will not be inimical to the comon defense and security or to the halth and safety of the public; and E.
The issuance of this amendment is in accordance with 10 CFR Part 51 of the Comission's regulations and all applicable requirements have been satisfied.
l 2.
Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. DPR-44 is hereby amended to read as follows:
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Technical Specifications The Technical Spec.ifications contained in Appendices A and B, as revised through Amendment No. 97, are hereby incorporated in the license. PECC shall operate the facility in accordance with the Technical Specificatio..s.
3.
This license amendment is effective as of its date of issuance.
FOR THE NUCLEAR REGULATORY COMMISSION
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J n. Stolz, Chi f Op rating Reactors Branch No. 4 ivision of Lice 6 sing
Attachment:
Changes to the Technical Specificaticns Date of Issuance: April 1{,1984 fa J.
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ATTACHMENT TO LICENSE AMENDMENT NO. 97 FACILITY OPERATING LICENSE NO. DPR-44 DOCKET NO. 50-277 Replace the following pages and add the new pages of the Appendix "A" Technical Specifications with the enclosed pages. The pages are identified by Amendment number and contain a vertical line indicating the area of change.
Remove Insert 71 71 71a 71b 81 81 Bla 93a 93a r'
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TABLE 3.2.B (CONTINUED)
INSTRUMENTATION TIIAT INITIATES OR CONTROLS Tile CORE AND CONTAINMENT COOLING SYSTEMS Minimum No.
Number of Of Operable Instrument Instrument Trip Function Trip Level Setting Channels Remarks Chhnnels Per Provided by Trip System (1)
Design 4(5)
IIPCI Steam Line 100>p>50 psig (3) 4 Inst.
Low Pressure 2
HPCI Turbine
<200 deg.P (3) 4 Inst.)
Compartment
)
Temperature
.)
)
l 4
HPCI Steam Line
<200 deg.F (3) 8 Inst.) 16 Inst.
~
Area Temperature
)
)
l
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Y 2
HPCI/RHR Valve
<200 deg.P (3) 4 Inst.)
Station Area Temperature 1
LPCI Cross-Connect NA 1 Inst..
Initiates annun-Position clation when valve is not closed.
I per 4KV 4KV Emergency Bus 25%(p 1)of Rated
- 1. Trips all loaded Bus Undervoltage Relay Voltage breakers.
(ilGA)
- 2. Fast transfer permissive.
- 3. Dead bus start of diesol.
I per 4KV 4KV Emergency Bus 95t(+04,-104)of Pormits sequential Bus Sequential Loading Rated Voltage starting of Relay (SV) vital loads Amendment No. 97
J TABLE 3.2.B (CONTINUED)
INSTRUMENTATION TilAT INITIATES OR CONTROLS THE CORE AND CONTAINMENT COOLING SYSTEMS l
Minimum No.
Number of Of Operable Instrument Instrument Trip Function Trip Level, Setting Channels Remarks Channels Per Provided by Trip Sys, tem (1)
Design 2 per 4 KV Emergency 60%(+5%)of Rated
- 1. Trips emergency Bus Transformer Voltage. Test at transfer feed Undervoltage(IAV) zero volts in 1.8 to 4KV'emer-(Inverse time-seconds (+10%).
gency bus.
voltage)
- 2. Fast transfer permissive.
l 2 per 4 KV Emergency Trans-90t(+21) of Bus former Degraded raEed voltage voltage (ITE) l (Instantaneous) i 1
60 second
- 1. Trips emergency H
(+5%) time delay.
transformer feed to 4 KV emoggency bus.
- 2. Fast transfer permissive.
6 second (+5%)
- 1. Trips emergency time defay.
transformer feed to 4 KV emer-gency bus.
- 2. Fast transfer permissive.
- 3. Safety injec-tion signal required.
Amendment No. 97
TABLE 3.2.B (CONTINUED)
INSTRUMENTATION TilAT INITI ATES OR CONTROLS Tile CORE AND CONTAINHEtri' COOLING SYSTEMS Minimum flo.
Number of of Operable Instrument Instrument Trip Function Trip Level Setting Channels Pomarks Channels Per Provided by Trip System (1)
Design 2 per 4 KV Emergency Trans-87%(+5%) of
- 1. Trips emergency tus former Degraded Rated Voltage.
transformer feed voltage (Inverse Tests at 2940 to 4 KV emer-time - voltage).
volts in 30 seconds gency bus.
(CV-6)
(+10%)
- 2. Fast trannfer permissive.
1y l
Amendment No. 97
a TABLE 4.2.B MINIMUM TEST AND CALIBRATION FREQUENCY FOR CSCS Instrument Channel Instrument Functional Test Calibration Frequency Ii.strument Check 1)
Reactor Water (1) (3)
Once/ operating cycle Once/ day T.evel (7) 2)
Drywell Pressure (1) (3)
Once/ operating cycle Once/ day (7) l 3)
Reactor Pressure (1) (3)
Once/ operating cycle Once/ day (7) l 4)
Auto Sequencing NA Once/ operating cycle None Timers 5)
Once/3 months None l
Pump Disch. Pressure Interlocks
$ 6)
Trip System Bus (1)
NA Hone y
Power Monitors 7)
Core Spray (1)
Once/6 months once/ day Sparger d/p 8)
Steam Line Hlgh (1)
Once/3 months None Flow (HPCI & RCIC) 9)
Steam Line High (1) (3)
Once/ operating cycle Once/ day Temp. (HPCI & RCIC) 10)
Safeguards Area (1)
Once/3 months None High Temp.
Once/3 months None Steam Line Low Pressure Amendment No. pp, 97
~
TABLE 4.2.0 (CONTINUED)
MINIMUM TEST ARD CALIBRATION FREQUENCY FOR CSCS In2trument Channel Instrument Functional Test Calibration Frequency Inntrument Check
- 12) 11PCI Suction Source (1)
Once/3 months None Levels
(
- 14) ADS Relief Valves Once/ operating cycle Os.. /op; rating cycle None l
Bellows Pressure Switches
- 15) LPCI/ Cross Connect Once/ refueling cycle N/A N/A l
Valve Position
- 16) 4KV Emergency Power Once/ month Once/ operating cycle None Source Degraded Voltage Relays o
(IAv,cv-6,ITE)
Amendment No.
97
PBAPS 3.2 BASES (Cont'd)
In the event of a loss of the reactor building ventilation system, radiant heating in the vicinity of the main steam lines raises the an.bient temperature above 200 degrees F.
Restcration of the main steam line tunnel ventilation flow momentarily exposes the temperature sensors to high gas temperatures.
The momentary temperature increase can cause an unnecpssary main steam line isolation and reactor scram.
Permission is provided to increase the temperature trip setpoint to 250 degrees F for 30 minutes during restoration of ventilation system to avoid an unnecessary plant transient.
The Emergency Aux. Power Source Degraded Voltage trip function prevents damage to safety related equipment in the event of a sustained period of low voltage.
The voltage supply to each of the 4kV buses will be monitored by undervoltage relaying.
With a degraded voltage condition on the offsite source the undervoltage sensing relays operate to initiate a timing sequence.
The timing sequence provides constant and inverse time voltage s
characteristics.
Degraded voltage protection includes: (1) An instantaneous relay (ITE) initiated at 90% voltage which w
initiates a 60-second time delay relay and a 6 second time delay relay.
The 6 second time. delay relay requires the presence of a Saf ety Injection Signal to initiate transfer; (2) An inverse time voltage relay (CV-6) initiated at 87% voltage with a maximum 60 second delay and operates at 70% voltage in 30 seconds; and (3)
An inverse time voltage relay (IAV) initiated at approximately 60% voltage and operates at 1.8 seconds at zero volts.
When the timing sequence is completed, the corresponding 4kV emergency circuit breakers are tripped and the emergency buses are transferred to the alternate source.
The sixty second timing sequences were selected to prevent unnecessary transfers during motor starts and to allow the automatic tapchanger on the startup transformer to respond to the voltage condition.
The six second timing esquence is necessary to prevent separation of the emergency buses from the offsite source during motor starting transients; yet still be contained within the time envelope in FSAR Table 8.5.1.
-93a-Amendment No. N, 97
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