ML20080B410

Proposed Tech Spec Table 3.5-2 Re Emergency Cooling.Safety Evaluation & Basis for Determining That Change Does Not Involve Significant Hazards Consideraton Encl

ML20080B410
Person / Time
Site:	Ginna
Issue date:	08/01/1983
From:	ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17255A272	List: ML20080B408 ML20080B410
References
NUDOCS 8308050467
Download: ML20080B410 (4)

Text

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Attachment A

1. Replace Technical Specification page 3.5-5 with the enclosed page.

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S 8308050467 830801 PDR ADOCK 05000244 P PDR

r TABLE 3.5-2 i EFEFRNCY (.ILLItB

• 4 1 2 3 4 5 6 OPERA'IOR ACTION NO. of MIN. FAIN . PERMISSIBLE IF 03tDITIONS OP UO. of 01ANNELS OPE 1 WALL DEGREE OF BYPASS R)LUf N 3 OR 5 f.O. EUNCPIONAL UNIT QIANNELS '10 TRI P* * *

• OIANNEIS RD;UNDANCY cot 0ITIONS CAtM/f IE FET i

1. SAlETY lisJEWIGt4

a. runtul 2 1 1 1 lbt Shutdown *** l

b. high Contairr.unt 3 2 2 1 IIot Shutdown ***

Pressure Primary prescure flot Shutdown ***

c. Steam Generator 3 2 2 1

, Low Steata less than 2000 Pressure / loop . psig

d. Pressurizer Low 3 .2 2 1 Prinary pressure llot Shutckun***

Pressure less than 2000 1 Esig

2. CNfAIht12u SIwW i a. fanual 2 2 2 - *

• lbt Shutdown ***

b. Hi-iti Ccntainn.3nt 2 sets 2 of 3 2 ter 1/ set Ilot Shutdown ***

Pressure (Coritain- of 3 in ca. set r.ent S i. ray) set i

• • i.ust actuate 2 switches simultaneously.

• If minismm conditions are not r.ut within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, steps shall be taken on the affected unit to place the unit in

, cold shutdown conditions.

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• • ** If a functional unit is operating with the minitua ot.crable channels the ntraber of channels to trip the reactor will be coluran 3 less column 4.

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, Proposed 3.5-5

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Attachment B t

j This change. involves a clarification in regards to which permissible. conditions are permitted when the primary pressure-is below 2000 PSIG.

In order to bring the plant to a cold shutdown condition

- blocking of safety injection is necessary. Should some malfunction occur in this mode when the safety injection signal 1

has been blocked, sufficient time would be available for an operator to analyze the situation and act.- If the total safety

injection sequence were required or if an individual piece of safeguard equipment needed to be utilized to control a situation, manual ~ operator intervention still can be accomplished.

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Attachment C In promulgating its interim final rule to comply with Public Law 97-415, the Commission published as guidelines a series of examples of amendments that are not likely to involve significant hazards considerations. 48 Fed. Reg. 14864, 14870. The Commission's example (ii) relates to changes that constitute an additional limitation, restriction or control not presently included in the technical specifications. The deletion of a permissible bypass condition for manual safety injection actuation clearly comes within example (ii). The remaining changes, addition of permissible bypass conditions for safety injection 4 actuation, clearly comes within example (vi), a change which may increase the probability or consequences of an accident or may in some way reduce a safety margin but where the results are clearly within all acceptable criteria. The changes are within acceptable criteria since the-NRC Standard Technical Specifications also permit comparable bypasses.

None of the proposed changes involve a significant increase in the probability or consequences of an accident previously evaluated; or create the possibility of a new or different kind of accident from any accident previously evaluated; or involve a significant reduction in a margin of safety.

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