BSEP 16-0067, Technical Specification Bases, Rev 88

Technical Specification Bases, Rev 88

ML16224A284
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Site:	Brunswick
Issue date:	08/03/2016
From:	Pope A H Duke Energy Progress
To:	Document Control Desk, Office of Nuclear Reactor Regulation
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BSEP 16-0067
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Technical Specification Bases Brunswick Steam Electric Plant, Unit No. 2

Renewed Facility Operating License DPR-62

Revision 88

Brunswick Unit 2 LOEP-1 Revision 88 LIST OF EFFECTIVE PAGES - BASES

Page No. Revision No. Page No. Revision No.

Title Page 88

List of Effective Pages - Book 1

LOEP-1 88

LOEP-2 86

LOEP-3 79

LOEP-4 78

i 62 ii 30

B 2.1.1-1 30 B 2.1.1-2 73 B 2.1.1-3 73 B 2.1.1-4 79 B 2.1.2-1 30 B 2.1.2-2 30 B 2.1.2-3 30

B 3.0-1 48 B 3.0-2 30 B 3.0-3 30 B 3.0-4 30 B 3.0-5 39 B 3.0-6 39 B 3.0-7 39 B 3.0-8 39 B 3.0-9 39 B 3.0-10 48 B 3.0-11 48 B 3.0-12 48 B 3.0-13 48 B 3.0-14 48 B 3.0-15 48 B 3.0-16 48 B 3.0-17 48 B 3.0-18 48

B 3.1.1-1 30 B 3.1.1-2 30 B 3.1.1-3 30 B 3.1.1-4 30 B 3.1.1-5 30 B 3.1.1-6 30 B 3.1.2-1 30 B 3.1.2-2 30 B 3.1.2-3 30 B 3.1.2-4 30 B 3.1.2-5 30 B 3.1.3-1 30 B 3.1.3-2 62 B 3.1.3-3 30 B 3.1.3-4 60 B 3.1.3-5 30 B 3.1.3-6 30 B 3.1.3-7 60 B 3.1.3-8 60 B 3.1.3-9 60 B 3.1.4-1 30 B 3.1.4-2 62 B 3.1.4-3 60 B 3.1.4-4 30 B 3.1.4-5 40 B 3.1.4-6 30 B 3.1.4-7 30 B 3.1.5-1 62 B 3.1.5-2 30 B 3.1.5-3 30 B 3.1.5-4 30 B 3.1.5-5 30 B 3.1.6-1 62 B 3.1.6-2 62 B 3.1.6-3 62 B 3.1.6-4 62 B 3.1.6-5 62 B 3.1.7-1 30 B 3.1.7-2 30 B 3.1.7-3 30 B 3.1.7-4 30 B 3.1.7-5 30 B 3.1.7-6 30 B 3.1.8-1 30 B 3.1.8-2 34 B 3.1.8-3 34 B 3.1.8-4 30 B 3.1.8-5 30

(continued)

Brunswick Unit 2 LOEP-1 Revision 88 LIST OF EFFECTIVE PAGES - BASES

Page No. Revision No. Page No. Revision No.

Title Page N/A

List of Effective Pages - Book 2

LOEP-1 88

LOEP-2 77

LOEP-3 88

LOEP-4 82

LOEP-5 65

i 30 ii 30

B 3.4.1-1 30 B 3.4.1-2 79 B 3.4.1-3 79 B 3.4.1-4 62 B 3.4.1-5 79 B 3.4.2-1 30 B 3.4.2-2 30 B 3.4.2-3 30 B 3.4.2-4 30 B 3.4.3-1 72 B 3.4.3-2 30 B 3.4.3-3 30 B 3.4.3-4 56 B 3.4.4-1 30 B 3.4.4-2 30 B 3.4.4-3 30 B 3.4.4-4 30 B 3.4.4-5 30 B 3.4.5-1 75 B 3.4.5-2 75 B 3.4.5-3 75 B 3.4.5-4 75 B 3.4.5-5 75 B 3.4.6-1 39 B 3.4.6-2 39 B 3.4.6-3 39 B 3.4.7-1 30 B 3.4.7-2 30 B 3.4.7-3 39 B 3.4.7-4 39 B 3.4.7-5 39 B 3.4.8-1 30 B 3.4.8-2 30 B 3.4.8-3 30 B 3.4.8-4 30 B 3.4.8-5 30 B 3.4.9-1 30 B 3.4.9-2 35 B 3.4.9-3 35 B 3.4.9-4 30 B 3.4.9-5 35 B 3.4.9-6 35 B 3.4.9-7 30 B 3.4.9-8 87 B 3.4.9-9 35 B 3.4.10-1 62 B 3.4.10-2 30

B 3.5.1-1 30 B 3.5.1-2 30 B 3.5.1-3 30 B 3.5.1-4 62 B 3.5.1-5 62 B 3.5.1-6 39 B 3.5.1-7 30 B 3.5.1-8 62 B 3.5.1-9 30 B 3.5.1-10 30 B 3.5.1-11 30 B 3.5.1-12 30 B 3.5.1-13 56 B 3.5.1-14 42 B 3.5.1-15 42 B 3.5.1-16 30 B 3.5.1-17 62 B 3.5.2-1 30 B 3.5.2-2 30 B 3.5.2-3 30 B 3.5.2-4 30 B 3.5.2-5 30 B 3.5.2-6 30 B 3.5.3-1 30 B 3.5.3-2 39

(continued)

Brunswick Unit 2 LOEP-3 Revision 88 LIST OF EFFECTIVE PAGES - BASES (continued)

Page No. Revision No. Page No. Revision No.

B 3.6.4.3-4 30 B 3.6.4.3-5 30 B 3.6.4.3-6 30

B 3.7.1-1 30 B 3.7.1-2 30 B 3.7.1-3 39 B 3.7.1-4 39 B 3.7.1-5 39 B 3.7.2-1 30 B 3.7.2-2 58 B 3.7.2-3 58 B 3.7.2-4 30 B 3.7.2-5 30 B 3.7.2-6 30 B 3.7.2-7 30 B 3.7.2-8 30 B 3.7.2-9 30 B 3.7.2-10 30 B 3.7.2-11 30 B 3.7.2-12 30 B 3.7.2-13 30 B 3.7.2-14 58 B 3.7.3-1 61 B 3.7.3-2 61 B 3.7.3-3 61 B 3.7.3-4 61 B 3.7.3-5 61 B 3.7.3-6 61 B 3.7.3-7 61 B 3.7.3-8 61 B 3.7.4-1 30 B 3.7.4-2 30 B 3.7.4-3 30 B 3.7.4-4 30 B 3.7.4-5 30 B 3.7.5-1 30 B 3.7.5-2 30 B 3.7.5-3 30 B 3.7.6-1 62 B 3.7.6-2 62 B 3.7.6-3 62 B 3.7.6-4 85 B 3.7.7-1 30 B 3.7.7-2 30 B 3.7.7-3 30

B 3.8.1-1 30 B 3.8.1-2 78 B 3.8.1-3 83 B 3.8.1-4 83 B 3.8.1-5 81 B 3.8.1-6 68 B 3.8.1-7 81 B 3.8.1-8 30 B 3.8.1-9 30 B 3.8.1-10 30 B 3.8.1-11 83 B 3.8.1-12 83 B 3.8.1-13 83 B 3.8.1-14 83 B 3.8.1-15 83 B 3.8.1-16 30 B 3.8.1-17 30 B 3.8.1-18 30 B 3.8.1-19 30 B 3.8.1-20 88 B 3.8.1-21 30 B 3.8.1-22 30 B 3.8.1-23 30 B 3.8.1-24 30 B 3.8.1-25 30 B 3.8.1-26 30 B 3.8.1-27 30 B 3.8.1-28 46 B 3.8.1-29 46 B 3.8.1-30 30 B 3.8.1-31 30 B 3.8.1-32 30 B 3.8.1-33 33 B 3.8.1-34 30 B 3.8.2-1 30 B 3.8.2-2 30 B 3.8.2-3 84 B 3.8.2-4 84 B 3.8.2-5 30

(continued)

RCS P/T Limits B 3.4.9 Brunswick Unit 2 B 3.4.9-8 Revision No. 87 BASES SURVEILLANCE SR 3.4.9.4 and SR 3.4.9.5 (continued)

REQUIREMENTS Performing the Surveillance within 30 minutes before starting the idle

recirculation pump provides adequate assurance that the limits will not be

exceeded between the time of the Surveillance and the time of the idle

pump start.

An acceptable means of demonstrating compliance with the differential

temperature requirement of SR 3.4.9.4 is to compare the temperature of

the reactor coolant in the dome to the bottom head drain temperature.

As specified in procedures, an acceptable means of demonstrating

compliance with the temperature differential requirement in SR 3.4.9.5 is

to compare the temperatures of the operating recirculation loop and the

idle loop.

SR 3.4.9.4 and SR 3.4.9.5 are modified by a Note that requires the

Surveillance to be met only in MODES 1, 2, 3, and 4. In MODE 5, the

overall stress on limiting components is lower. Therefore, T limits are not required. The Note also states the SR is only required to be met

during recirculation pump startup, since this is when the stresses occur.

SR 3.4.9.6, SR 3.4.9.7, and SR 3.4.9.8 Limits on the reactor vessel flange and head flange temperatures are

generally bounded by the other P/T limits during system heatup and cooldown. However, operations approaching MODE 4 from MODE 5 and

in MODE 4 with RCS temperature less than or equal to certain specified

values require assurance that these temperatures meet the LCO limits.

The flange temperatures must be verified to be above the limits

30 minutes before and while tensioning the vessel head bolting studs to

ensure that once the head is tensioned the limits are satisfied. When in

MODE 4 with RCS temperature 80 F, 30 minute checks of the flange temperatures are required because of the reduced margin to the limits.

When in MODE 4 with RCS temperature 100 F, monitoring of the flange temperature is required every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> to ensure the temperature is

within the specified limits.

SR 3.4.9.8 applies only to the reactor vessel flange and head flange

temperatures; TS 3.4.9 does not limit the temperature of any other areas

of the vessel when RCS temperature is 100 F in MODE 4 or MODE 5, or when defueled.

(continued)

AC Sources-Operating B 3.8.1 Brunswick Unit 2 B 3.8.1-20 Revision No. 88 BASES SURVEILLANCE recommendations of Safety Guide 9 (Ref. 5), Regulatory Guide 1.9 REQUIREMENTS (Ref. 11), and Regulatory Guide 1.137 (Ref. 12), as addressed in the (continued) UFSAR.

Where the SRs discussed herein specify voltage and frequency

tolerances, the following summary is applicable. The minimum steady

state output voltage of 3750 V is derived from the recommendations

found in Safety Guide 9 (Ref. 5) and bounds the minimum steady state

output voltage criteria of 3698 V associated with the 4.16 kV emergency

buses analyzed in the AC Auxiliary Elec trical Distribution System Study.

This value (3698 V) allows for voltage drop to the terminals of 4000 V

motors whose minimum operating voltage is specified as 3600 V. It also

allows for voltage drops to motors and other equipment down through the

480 V level where minimum operating voltage is also usually specified as

90% of name plate rating. The specified maximum steady state output

voltage of 4300 V ensures the maximum operating voltage at the safety

related 480 V substations is no more than the maximum rated steady

state voltage criteria for the 480 V motor control centers. The maximum

steady state output voltage was determined taking into consideration the

voltage drop between the DGs and the 4.16 kV emergency buses and a

5% voltage boost at the 480 V substation transformers. This maximum

steady state output voltage also ensures that for a lightly loaded

distribution system, the voltage at the terminals of 4000 V motors is no

more than the maximum rated steady state operating voltage. The

specified minimum and maximum frequencies of the DG are 58.8 Hz and

61.2 Hz, respectively. These values are equal to +/- 2% of the 60 Hz

nominal frequency and are derived from the recommendations found in

Safety Guide 9 (Ref. 5).

SR 3.8.1.1 This SR ensures proper circuit continuity for the offsite AC electrical

power supply to the onsite distribution network and availability of offsite

AC electrical power. The breaker alignment verifies that each breaker is

in its correct position to ensure that distribution buses and loads are

connected to their preferred power source and that appropriate

independence of offsite circuits is maintained. The 7 day Frequency is

adequate since breaker position is not likely to change without the

operator being aware of it and because its status is displayed in the

control room.

(continued)