ML18082A542

Revised Tech Specs for License DPR-75 Re Position Indication Sys Shutdown

ML18082A542
Person / Time
Site:	Salem
Issue date:	06/06/1980
From:	Public Service Enterprise Group
To:
Shared Package
ML18082A540	List: ML18082A539 ML18082A541 ML18082A542
References
NUDOCS 8006120214
Download: ML18082A542 (2)

Text

e e

PROPOSED CHANGE SPECIAL TEST EXCEPTIONS POSITION INDICATION SYSTEM -

SHUTDOWN TECHNICAL SPECIFICATIONS SALEM UNIT 2 Description of Change This change would allow suspension of the limitations of Speci-fication 3.1.3.2.2 (Position Indication System -

Shutdown) during the performance of rod drop time measurements and during the rod position indication system calibration provided that either the rod position indicator is operable during the with-drawal of the rods, or Keff is maintained less than or equal to 0.95.

Reason for Change The rod position system at Salem No. 2 cannot be accurately calibrated at COLD conditions.

This change would allow the per-formance of COLD rod drop time measurements at Salem No. 2.

Safety Evaluation The Bases of the Salem No. 2 Technical Specification pertaining to Movable Control Assemblies (Section 3/4.1.3) states:

"The specifications of this section ensure that (1) acceptable power distribution limits are maintained, (2) the minimum SHUTDOWN MARGIN is maintained, and (3) limit the potential effects of a rod ejection accident."

By limiting the K to less than or equal to 0.95 if the rod position system iSf~ot OPERABLE (not calibrated) the three concerns expressed above are eliminated.

e-SPECIAL TEST EXCEPTIONS POSITION INDICATION SYSTEM - SHUTDOWN LIMITING CONDITION FOR OPERATION

3. 10.5 The limitations of Specification 3. 1.3.2.2 may be suspended during the performance of i~~ivi?ual full leng~h (shutdown an~ c_ontr?l) _rod~~ £~-£/""-'}.

.-measwr-eme.A*f!F 0

ute:d:, 0.-"d. clt..c...r--1>t.<; rad 17osr~ro~ 1;,d1c~6,o,..,.s_ysCeJ>?

~

Cec. f,*6r~ t:o'°' ;:>r-o v/cle....d; I'

a.

Only one shutdown or control bank is withdrawn from the fully inserted position at a time, and

b.

E;ft.er-

i. /,The rod position indicator is OPERABLE during the withdrawal of the rods J

• cr-2, l(e.f.f.

i..s """'":.. 6q__,-.. e-L J~.s~ iii~,, e:." ~,O'<--"' I i.o o.. 9 5-:

APPLICABILI~Y:

MODES 3_, 4 and 5 duri~g ~erf~rma~ce of rod ~

-t::es-6'/

.JRe.a&l:lreme-~.::c_"'J d.'"1...ro/,-.,,d 17os1 tioi1,,,d,_c...._ -6, 011

.sysi~A-7. CA/, 6,....Kf.,OJ.i, ACTION:

II' eii.he.r-

~o,.f:.,L;o..._ &<<-- or ca,,.J,*.1,*.o... 6 t::!i:-i#ve-

~re_ ho -f:-

""1 e.. ~)

.Witl'I the position il'ldicatio11 syslen1 inope1 able, 01 mo1 e tha11 one etrnk ef Fees witbdrat*IR;, immediately open the reactor trip breakers.

SURVEILLANCE REQUIREMENTS

4. 10.5 The above required rod position indication systems shall be determined to be OPERABLE within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to the start of and at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> thereafter during rod drop time measurements by verifying the demand position indication system and the rod position indication systems agree:

a.

Within 12 steps when the rods are stationary, and

b.

Within 24 steps during rod motion.

SALEM - UNIT 2 3/4 10-5