ML17252B013: Difference between revisions

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{{#Wiki_filter:1 M I 1 . \ D+ USAEC-HQS GTWN VU WSH / TLXA289 11/20/72 2039 '-*C ICS IPMVEIA MVN ..... J 2CZC 00222 TOVE MORRIS ILL 120 11-20 315P_CST R'1S MR A GIAMBUSSO DEPUTY DIRECTOR OF PROJECTS DIRECTOR APE OF WUX .$ *S .. ()tJf *N L6 ATOMICH ENERGY COMMISSION W\SH I NG TON DC M .* ' -.9.J. BJEC T : .OP R. -2 5 DRESDEN NUCLEAR POWER' STAT I ON U_ N 1 T 3 n1-. ,,..,,,_.
{{#Wiki_filter:1       M                                                                         So-~'1-9 I
l1'f.l::'f:(J; lHIS WILL CONF !RM A CONVERSATION wi TH MR ;i DANCE OF YOUR!  
1
$. I ,, *. 1100 HOURS THIS DATE REACT,ORS LOW PRESSURE _sw1 TC .  
                      . \
\ '.
D+
OUT.OF ON WHlLE UNIT i-WAS SHUT DOWN, I . _, . . . ..._ . . ' ' AtAL)BERATION WAS MADE ON MAIN STEAM LINE LOW PRESSURE-SWITCHES.
USAEC- HQS GTWN
CABLE 3.2.1 OF THE TECHNICAL SPE.CIFICATIONS STATE THAT THE TRIP . .
()tJf VU WSH           /
SETTING ON THESE SWITCHES SHOULD BE EQUAL TO OR GREATER lHAN 8 50 PS I G ** ALL FOUR PRESSURE SW I TC HES HAD TR IP SETTINGS BELOW 850 PSIG. PRESSURE SWITCHES 3-261-30A AND 308 HAD SETTING . F 847 AND 848 PSIG *. PRESSURE SWITCHES 3-261-30C  
                                                                                      *C TLXA289 '-
*AND 300 OF 849 AND 848 PSIG. IN ORDER TO ELIMINATE.THIS PROBLEM* I IN THE FUTURE .THE "AS LEFT" CALIBERATION SETTING ON THESE HAS BEEN PLUS OR PSIG Pl,.US OR i"11NUS 4PSIG. W P WORDEN COMMONWEALTH EDISON POWERSTATIQN RR 1 MORRIS ILLINOIS 430A 11-21-72 + . l.SAEC HQS GTWN . I}}
WAE197<2043JC1~032231C325002>PD              11/20/72 2039         :~wt
                                                                                      -~
ICS IPMVEIA MVN                                                                 ~@.
                                                                                    ~ ..... J   *N 2CZC 00222 TOVE MORRIS ILL 120 11-20 315P_CST                                     ~i R'1S MR A GIAMBUSSO DEPUTY DIRECTOR OF REACTIV~ PROJECTS ~~
                                                                                        '"~
DIRECTOR APE OF ~ICENSING WUX ~ACHINE.                                          ~
                                                                                            .$
                                                                                            *S..
L6 ATOMICH ENERGY COMMISSION W\SH I NG TON DC M~~}          ~ - .*   '
BJEC T : .OP R. -2 5 DRESDEN NUCLEAR POWER' STAT I ON U_ N1 T 3                                 n1-.           ,,..,,,_.
l1'f.l::'f:(J; *~, IJrc~
    .9.J.
lHIS WILL CONF !RM A CONVERSATION               wi TH MR   ;i DANCE OF YOUR!                   ~- ~/.., $.
I                 ,,                         *.
A~. 1100 HOURS THIS DATE C~N<;:ERNING REACT,ORS LOW PRESSURE _sw1 TC . ~ -~~;~ \ \~ '.
  ~ING OUT.OF ~ALIBERATION~
I                        .
ON ~l/L9/72 WHlLE UNIT i-WAS SHUT DOWN,
_, .     .             .     ..._       .
                              .                                   '   '
AtAL)BERATION WAS MADE ON MAIN STEAM LINE LOW PRESSURE-SWITCHES.
CABLE 3.2.1 OF THE TECHNICAL SPE.CIFICATIONS STATE THAT                             THE TRIP
                                        .                     .
  ~VEL        SETTING ON THESE SWITCHES SHOULD BE EQUAL TO OR GREATER lHAN 8 50 PS I G** ALL FOUR PRESSURE SW I TC HES HAD TR IP SETTINGS BELOW 850 PSIG. PRESSURE SWITCHES               3-261-30A AND 308 HAD SETTING
. F 847 AND 848 PSIG *. PRESSURE SWITCHES 3-261-30C *AND 300
  ~D.SETTINGS            OF 849 AND 848 PSIG. IN ORDER TO ELIMINATE.THIS PROBLEM*
I IN THE FUTURE .THE "AS LEFT" CALIBERATION SETTING ON THESE
  ~ITCHES        HAS BEEN     CHA~GED F~OM 85~      PLUS OR     Ml~US  PSIG Pl,.US OR i"11NUS 4PSIG.
W P WORDEN       ~UPERINTENDENT      COMMONWEALTH EDISON ORESD~N    ~UCLEAR      POWERSTATIQN RR 1 MORRIS ILLINOIS
                                                                                                                                      .I 430A 11-21-72
  + .
l.SAEC HQS GTWN}}

Revision as of 20:14, 29 October 2019

Letter Confirming a 11/20/1972 Conversation Concerning Reactors Low Pressure Switches Being Out of Calibration - Dresden Unit 3
ML17252B013
Person / Time
Site: Dresden Constellation icon.png
Issue date: 11/20/1972
From: Worden W
Commonwealth Edison Co
To: Giambusso A
US Atomic Energy Commission (AEC)
References
Download: ML17252B013 (1)
v • d • e


Text

1 M So-~'1-9 I

1

. \

D+

USAEC- HQS GTWN

()tJf VU WSH /

  • C TLXA289 '-

WAE197<2043JC1~032231C325002>PD 11/20/72 2039  :~wt

-~

ICS IPMVEIA MVN ~@.

~ ..... J *N 2CZC 00222 TOVE MORRIS ILL 120 11-20 315P_CST ~i R'1S MR A GIAMBUSSO DEPUTY DIRECTOR OF REACTIV~ PROJECTS ~~

'"~

DIRECTOR APE OF ~ICENSING WUX ~ACHINE. ~

.$

  • S..

L6 ATOMICH ENERGY COMMISSION W\SH I NG TON DC M~~} ~ - .* '

BJEC T : .OP R. -2 5 DRESDEN NUCLEAR POWER' STAT I ON U_ N1 T 3 n1-. ,,..,,,_.

l1'f.l::'f:(J; *~, IJrc~

.9.J.

lHIS WILL CONF !RM A CONVERSATION wi TH MR ;i DANCE OF YOUR! ~- ~/.., $.

I ,, *.

A~. 1100 HOURS THIS DATE C~N<;:ERNING REACT,ORS LOW PRESSURE _sw1 TC . ~ -~~;~ \ \~ '.

~ING OUT.OF ~ALIBERATION~

I .

ON ~l/L9/72 WHlLE UNIT i-WAS SHUT DOWN,

_, . . . ..._ .

. ' '

AtAL)BERATION WAS MADE ON MAIN STEAM LINE LOW PRESSURE-SWITCHES.

CABLE 3.2.1 OF THE TECHNICAL SPE.CIFICATIONS STATE THAT THE TRIP

. .

~VEL SETTING ON THESE SWITCHES SHOULD BE EQUAL TO OR GREATER lHAN 8 50 PS I G** ALL FOUR PRESSURE SW I TC HES HAD TR IP SETTINGS BELOW 850 PSIG. PRESSURE SWITCHES 3-261-30A AND 308 HAD SETTING

. F 847 AND 848 PSIG *. PRESSURE SWITCHES 3-261-30C *AND 300

~D.SETTINGS OF 849 AND 848 PSIG. IN ORDER TO ELIMINATE.THIS PROBLEM*

I IN THE FUTURE .THE "AS LEFT" CALIBERATION SETTING ON THESE

~ITCHES HAS BEEN CHA~GED F~OM 85~ PLUS OR Ml~US PSIG Pl,.US OR i"11NUS 4PSIG.

W P WORDEN ~UPERINTENDENT COMMONWEALTH EDISON ORESD~N ~UCLEAR POWERSTATIQN RR 1 MORRIS ILLINOIS

.I 430A 11-21-72

+ .

l.SAEC HQS GTWN

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