05000318/LER-1980-058-03, /03L-0:on 801021,during Mode 1,control Room Air Conditioning Unit 12 Tripped.Air Temp Remained within Design Limit of 120 Degrees.Caused by Normal Temp Control Action. Proposed Mod Will Add Indications to Determine Trip Type

From kanterella
(Redirected from ML19339B663)
Jump to navigation Jump to search
/03L-0:on 801021,during Mode 1,control Room Air Conditioning Unit 12 Tripped.Air Temp Remained within Design Limit of 120 Degrees.Caused by Normal Temp Control Action. Proposed Mod Will Add Indications to Determine Trip Type
ML19339B663
Person / Time
Site: Calvert Cliffs Constellation icon.png
Issue date: 11/04/1980
From: Rizzo P, Wenderlich R
BALTIMORE GAS & ELECTRIC CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19339B661 List:
References
LER-80-058-03L, LER-80-58-3L, NUDOCS 8011070410
Download: ML19339B663 (1)


LER-1980-058, /03L-0:on 801021,during Mode 1,control Room Air Conditioning Unit 12 Tripped.Air Temp Remained within Design Limit of 120 Degrees.Caused by Normal Temp Control Action. Proposed Mod Will Add Indications to Determine Trip Type
Event date:
Report date:
3181980058R03 - NRC Website

text

. __

l 11 418 LICENSEE EVENT REPORT

/3.

IV*

CONTROL SLOCK: l l

l l

l 1 lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATl!N) 1 6

foTTl IM 10 I c Ic lN l 2 l@l0 l0 l-10 l0 l010 l0 l-1010 l@l411 11 11 11 l@l l

l@

7 8 9 LICENSEE CODE 14 15 UCENsE NUMBER 25 26 LICENSE TYPg JO 57 CAT 58 CON'T

",% l ' l@l0 l 5 l0 l0 l0 l3 l1 l8 l@l1 10 12 11 18 10 l@l1 11 10 14 lo 10 l @

l 10111 5

l

?

8 60 63 OOCKET NUMBER 68 69 EVENT DAT%

74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l10s2i i With Unit 2 in mode 1 and with #11 control room air conditioning unit I

i

' l 6T5'1 1 out of service, at 1535, #12 control room air conditionino unit trioned.

l iO i Ai l This was a degradation of T.S. 3.7.6.1.

At 1543 #12 control room air 1

iO isi i conditioning unit was restarted. Air temoerature remained within the I

0 1O le 1 I design limit of 120 F.

Therefore, this event had no imnact on the 1

lO17 I public health or safety. LER 80-51 (U-1) describes a similar event.

I I

1 i O is i I E

CO E sv8C E COMPON ENT COOE su8 dE s

E g

IS lG l@ U@ W @ l Z l Z l Z l Z l Z l Z l@ (Z_j@ (Z,,,J @

7 8

9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVislON LE R/RO EVENT YE AR REPORT NO.

CODE TYPE N O.

@,Rg 1810l l-l 10l518I l/l 10 13 I IL l l,-j lQ,]

_ 21 22 23 24 26 27 3

N 30 31 32 N AC ON O P NT 9E O HOURS s8 i FO 8.

s LE MANUF CTURER IZl@lXl@

lZl@

LI.J@

l010lalol IN l@

l,[Lj@

l,&,j@

lZ191919l@

33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS i,iOi j The cause for the #12 air conditioning unit trip is attributed to nomal I

gi temperature control action. Plant personnel are present1v working on a I

proposal to provide through a modification, added indications to aid 1

g;TTlI g;

operators in detennining a control versus a machine orotection trio.

I I

mi OTwER status @"'sEOE.E DISCOVERY DESCRIPTION @

's 'M v owER W @ 111010l@l NA l

l A l@l Ooerator Observatinn l

i s

  1. .CTIVITY CO TENT RELE ASEO OP RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE l

NA l

l NA l

[TTil I Z l @ QJ@MEs i

PERsONNEt Expos NUMBER TYPE OEsCRIPTION y l01010l@lZl@l NA l

PERsONNe't iNau%Es DESCRIPTION @

NuMetR f

L'_1.aJ l 01010 l@l NA l

80 7

8 9 11 12

" s*CUPT ON ' "" @

' 'S E

T PE L'1 J l Z igi NA l

80 7

8 9 10 DE CRIPTION NA I

llll1111llllli IsS [E @l 2 O 68 69 80 5 7

8 9 to R.L. Wenderlich/P.G. Rizzo pgang M) ECWM i

NAME OF PREPARER 80110708