ML20235Z795

Proposed Tech Specs Supporting License Change Application 58 to License NPF-1 Re Reactivity Control Sys Rod Drop Time

ML20235Z795
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	04/01/1980
From:	PORTLAND GENERAL ELECTRIC CO.
To:
Shared Package
ML19309B184	List: ML20235Z795 ML20244A945
References
TAC-13053, NUDOCS 8710210324
Download: ML20235Z795 (1)

Text

'

_, q .

j

., m- .

'* LCA 58 .

. R

• ' Pags 1 of 1-REACTIVITY C0t! TROL SYSTEMS R00 DROP TIME-LIMITI?!G CONDITION FOR OPERATION _

.- j 3.1.3.3 The individual $ full length .(shutdown and centrol) red drop time' d -

. from the. fully withdrawn position shalli be < 2.2 seconds. from beginning ~- l

~

1

- of decay of. stationary gripper coil voltage to dashpot' entry with: .

a. T,yg 1 550*F. and-

b. All reactor coolant pumps coerating.

\-

j APPUCABILM: MODE 3.-

ACTION: . .!

1

a. With the drcp time 'of.any full length rod determined to exceed 1 the above limit, restore the red drop time-to within the above J limit prior to proceeding to MODE ,1 cc:2.-

b. With the rod drop times within limits but determiaed with'3 .

reactor coolant pumps operating, operation may proceed provided' ') '

THERMAL POWER is restricted to < 757. of RATED THERMAL POWER. .

SURVEILLAt:CE REQUIREMENTS 1

4.1.3.3 The rod drop time of full length rods shall be demonstrated i through measurement prior to reactor criticality:

a. For all rods following 'each removal of the reactor vessel head -  :

3

b. For specifically affected individual rods following .any. main-

"tenance on er modification to the control rod drive system which could-affect the drop time of those-specific rods, and. .{

?,

.l

?, c. At les. v; once per 18 months.- ql d- On a single occasion prict to the.refue' ling. shutdown scheduled for 1980, the 18 month surveillance interval in c.'above' may?

.i be extended by 25 percent per Specification 4.0.2. and two -

l additiDnal days. .

24 800403 gjo2jQCM05000344 P

PDR ,

~

.i TROJAN-UNIT 1 3/4 1 - 21

.i s e '

O______.____._.____i____ m _ . _ _ _

.