ML20235Z795
| 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: |
| References | |
| TAC-13053, NUDOCS 8710210324 | |
| Download: ML20235Z795 (1) | |
Text
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m-R LCA 58 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 fully withdrawn position shalli be 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
~
of decay of. stationary gripper coil voltage to dashpot' entry with:
1 T,yg 1 550*F. and-a.
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 1J the above limit, restore the red drop time-to within the above 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 At les. ; once per 18 months.-
ql
?,
v c.
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.
gjo2jQCM05000344 24 800403 P
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.i TROJAN-UNIT 1 3/4 1 - 21
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