ML20211J275

Proposed Tech Specs,Reflecting New Electrical Capacity for 1B Edg.Significant Hazards Considerations Associated W/Change Have Been Evaluated

ML20211J275
Person / Time
Site:	Calvert Cliffs
Issue date:	10/02/1997
From:	BALTIMORE GAS & ELECTRIC CO.
To:
Shared Package
ML20211J274	List: ML20211J269 ML20211J275
References
NUDOCS 9710080051
Download: ML20211J275 (7)

Text

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NITACllMENT (3)

CURRENT UNIT !

TECilNICAL SPECIFICATION MARKED-UP PAGES 3/48-4 3/4 8-5 Eu 988!A 3I688817 P PDR llattimore Gas & Electric Company Docket Nos. 50-317 and 50-318 October 2,1997

3/4.8 ELECTRICAL POWER,$YSTEMS SURVEILLANCE REQUIREMENTS 4.8.1.1.1 Each required independent circuit between the offsite transmission network and the onsite Class 1E Distribution System sha

a. Demonstrated OPERABLE, as follows:

1. ,

verifying availability. correct breaker alignments and indicat 2.

For the 69 kV SMECO offsite power circuit substitution for a 500 kV offsite power circuit, and at leastwithin on breaker alignments and indicated power availability; b.

shutdown by manually transferring unit power supp nonnal circuit to the alternate circuit.

4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:

a.

At least once per 31 days on a STAGGERED TEST BASIS by:

1.

Verifying the fuel level in the day fuel tank.

2.

Verifying the fuel level in the fuel storage tank.

3.

Verifying the fuel transfer pump. can be started and transfers fuel from the storage system to the day tank.

4.

Verifying the diesel starts and achieves a generator voltage and frequency,of 4160 1 420 volts and 6011.2 Hz, respectively.

g 5.

Verifying the generator is synchronized, for No lA Emergency Diesel Generator or to > 4000 kW Emergency Diesel Generator, and operates kWTorNo.1B or > 60 minutes.

6.

Verifying the diesel generator is aligned to provide standby power to the associated emergency busses.

7.

Verifying that the automatic load sequencer timer is CPERABLE with designthe interval between each load block within i 10%

interval. of its l

All engine starts for the purpose of this Surveillance Requirement may be preceded by an engine prelube period and/or and stress on the diesel engine is minimized.

CALVERT CLIFFS - UNIT 1 3/4 8-4 Amendment No. 214

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, 3/4.8 ELECTRICAL POWER SYSTEMS e

SURVEILLANCE REQUIREMENTS Qontinued)

b. At least once per 92 days by verifying that a sample of diesel fuel from the fuel storage tank is within the acceptable limits specified in Tsble 1 of ASTM water and sediment, 0975-81 when chacked foi' viscosity,

c. At least once per 184 days by verifying the diesel starts from ambient condi 5,10 seconds.}ionandacceleratestoatleast60Hzin l

d. At least once per REFUELING INTERVAL by:

1. Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's reconenendations for this class of standby service.

2. Verifying the generator capability to reject a load of 1 500 hp without tripping.

3. Simulating a loss of offsite power in conjunction with a safety injection actuation test signal, ands a) Verifying de-energiration of the emergency busses and load shedding from the emergency busses.

b) Verifying the diesel starts from ambient condition on the auto-start signal, energizes the emergency busses with pemanently connected loads, energizes the auto-connected emergency loads through the load sequencer and operates for > 5 minutes while its generator is loaded with the emergency loads.'

c) Verifying that automatically bypassed diesel trips are automatically bypassed on a Safety injection Actuation Signal.

4. Verifying the diesel generator operates for 160 minutes while loaded t > 4000 kW for No. lA Emergency Diesel Generator or kW for No. IB Emergency Diesel' Generator.

%cce

5. Verifying that t e auto-connected loads to each diesel generator do n exceed 4000 kW for No. lA Emergency Diesel Generator o W for No. IB Emergency Diesel Generator.

3300 All engine starts for the purpose of this Surveillance Requirement may be preceded by an engine pre-lube period recommended by the manufacturer so that mechanical wear and stress on the diesel engine is minimized.

CALVERT CLIFFS - UNIT 1 3/4 8-5 Amendment No. 214

ATTACllMENT (4)

IMPROVED TECllNICAL SPECIFICATION MARKED-UP PAGES 3.8.1-8 3.8.1-10 B 3.8.1-2 Baltimore Gas & Electric Company Docket Nos. 50 317 and 50-318 October 2,1997

AC Sources-Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY l

SR 3.8.1.3 --------------.---NOTES-------------.-...

1. Performance of SR 3.8.1.9 satisfies this SR.

2. All DG starts may be preceded by an engine prelube period and followed by a warmup period prior to loading.

3. A modified DG start involving idling and gradual acceleration to synchronous speed may be used for this SR as recommended by the manufacturer.

Verify each DG starts and achieves steady 31 days state volta p 2 3740 V and s 4580 V, and frequency 2 58.8 Hz and s 61.2 Hz.

SR 3.8.1.4 -.-.----.---...---NOTES----------.----..-

1. Homentary transients below the load range do not invalidate this test.

2. This SR shall be preceded by and imediately follow without shutdown a successful performance of SR 3.8.1.3 or SR 3.8.1.9.

Verify each DG is synchronized and loaded. 31 days and operates for 2 60 miEJtes at a load 2 4000 kW for DG 1A, t 2250J and 2 2700 kW for DG 2A and EB.

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CALVERT CLIFFS - UNITS 1 & 2 3.8.1-8 Revision 0

. AC Sources-Operating 3.8.1

].SURVEILLANCEREQUIREMENTS(continued)

SURVEILLANCE FREQUENCY ,

SR 3.8.1.11 Verify each DG operates for 2 60 minutes 24 months ile loaded to d 4000 kW for DG 1A,

! '700 kh' and k 2A SR 3.8.1.12 Verify that auto-connected loads to each DG 24 months are s 4000 kW for DG 1A, ' 2700 i; ' r * '

@ and s 3300 k for .G A an 2B.

w SR 3.3.1.13 Verify each DG rejects a load 2 500 hp 24 months without tripping.

SR 3.8.1.14 Verify that automatically bypassed DG trips 21 inonths are automatically bypassed on an actual or simulated required actuation signal, t

SR 3.8.1.15 Verify each DG synchronizes with offsite 24 months power source while loaded upon a simulated restoration of offsite power and the loads can be transferred to offsite power source.

1 CALVERT CLIFFS - UNITS 1 & 2 3.8.1-10 Revision %

,4 ~V l

AC Sources-Operating B 3.B.1 BASES 1

b.

One 500 kV line, one P-13000, 500 kV/13 kV transfonner and the 69 kV/13.8 kV SMECO line.

The onsite standby power source to each 4.16 kV ESF bus is a dedicated DG.

A DG starts automatically on an safety '

injection actuation signal or on a 4.16 kV degraded or undarvoltage signal.

If both 4.16 kV offsite source breakers are open, the DG, after reaching rated voltage and frequency, will automatically close onto the 4.16 kV bus.

In the event of a loss of offsite power to a 4.16 kV 1E hus, if required, the ESF electrical loads will be automatically sequenced onto the DG in sufficient time to provide for safe shutdowri for an inticipated operational occurrence (A00) and ensure that the containment integrity and other vital functions are maintained in the event of a design bases accident.

I Ratings for the 1A DG satisfies the requirements of Regulatory Guide 1.9 (Ref. 3) and ratings for the 1B, 2A, and 28 DG satisfy the requirements of Safety Guide g (Ref. 4). The.Jontinuous servic rating for the 1A DG is 5400 kW, are 3000 2 OC' W 2500 Tu- and for the 2A and 28 DGs '

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APPLICABLE SAFETY _ ANALYSES The initial conditions of Design Basis Accident (DBA) and transient analyses in the UFSAR, Chapter 6 (Ref. 5) and Chapter 14 (Ref. 6), assume ESF systems are OPERABLE.The AC electrical power sources are designed to provide sufficient capacity, capability, redundancy, and reliability to ensure the availability of necessary power to ESF systems so that the fuel - Reactor Coolant System (RCS), and contatnment design limits are not exceeded. These limits are discussed in more detail in the Bases for Section 3.2

" Power Distribution Limits; Section 3.4.. Reactor Coolant System (RCS); and Section 3.6, Containment Systems.

i CALVERT CLIFFS - UNITS 1 & 2 3 3.8.1-2 Revision 0

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